feat: distribute credentials in worker snapshots

README.md

@@ -20,7 +20,8 @@ Proxy Pool 用 Controller 协调这些变化，并让 Gateway 数据面只消费
 ## 使用方式
 
 - **Gateway**：调用方连接平台，由平台选择上游代理并转发 HTTP 或 HTTPS
-  CONNECT。当前已有传输、调度和保护链组件，命令进程与控制面快照客户端待装配。
+  CONNECT。`proxy-gateway` 已装配本地监听、指标探针和控制面 Register/Watch/ACK/
+  Runtime 会话；带凭据 Proxy 分发仍待闭环。
 - **Distribution**：调用方按条件提取真实代理；成功提取即独占消费，不支持归还、
   续租或状态查询。
 - **Admin**：运维人员查询状态、启停 Upstream、切换 Routing，并触发严格配置
@@ -43,11 +44,12 @@ Proxy Pool 用 Controller 协调这些变化，并让 Gateway 数据面只消费
 - **Gateway 组件**：HTTP 正向代理、HTTPS CONNECT、双向 Tunnel、重试、超时、
   目的地址保护、本地快照存储、容量调度和 Worker 控制面 Register/Watch/ACK/
   Runtime 会话组件已有实现与定向测试。`SessionSupervisor` 会为可恢复控制面中断执行
-  有界退避重连。Controller 可向 Worker 下发无凭据引用的已归属 Proxy 及 Gateway
+有界退避重连。Controller 可向 Worker 下发已归属 Proxy、Gateway Routing 与按引用去重的
-  Routing 快照。Gateway 会将 Routing 与 Proxy 原子编译为同一内存 View，并只按当前未过期
+凭据材料快照。Gateway 会将 Routing、Proxy 与凭据原子编译为同一内存 View，并只按当前未过期
   View 匹配请求，并在内存中按 Sequential、Random、Round Robin、Weighted 或 Least
   Connections 选择上游。无候选时支持 reject、受 `waitTimeout` 限制的本地容量等待，
-  以及仍经过目标地址策略的 direct；`proxy-gateway` 命令与凭据分发仍待装配。
+  以及仍经过目标地址策略的 direct；`proxy-gateway` 通过独立控制面拨号地址维护
+  Session，并仅在持有未过期 Snapshot 时 Ready；凭据材料只保留在当前节点内存 View。
 - **安全边界**：Gateway、Distribution 与 Admin 使用各自的认证语义，并支持
   CIDR、可信代理、严格请求解析和敏感信息最小化。
 
@@ -55,7 +57,7 @@ Proxy Pool 用 Controller 协调这些变化，并让 Gateway 数据面只消费
 
 ```mermaid
 flowchart LR
-    Client[调用方] -->|HTTP / CONNECT| Gateway[Gateway<br/>进程待装配]
+    Client[调用方] -->|HTTP / CONNECT| Gateway[proxy-gateway]
     Client -->|独占提取| Distribution[Distribution]
     Operator[运维人员] -->|管理操作| Admin[Admin]
     subgraph CP[proxy-controller 已运行]
@@ -66,7 +68,7 @@ flowchart LR
     Controller --> Redis[(Redis)]
     Controller --> PostgreSQL[(PostgreSQL)]
     Checker[Checker<br/>健康链待闭环] -. Observation .-> Controller
-    Controller -. Snapshot 链待闭环 .-> Gateway
+    Controller -. gRPC Snapshot .-> Gateway
 ```
 
 - **PostgreSQL** 只保存管理面状态，不保存 Proxy 明细或逐次提取记录。
@@ -76,7 +78,7 @@ flowchart LR
 
 ## 当前完成度
 
-截至 **2026-07-31**，实施计划检查项为 **53 / 74（71.6%）**。详情见
+截至 **2026-07-31**，实施计划检查项为 **55 / 74（74.3%）**。详情见
 [实施计划](docs/development/implementation-plan.md)和
 [交付完成度审计](docs/requirements/completion-audit.md)。
 
@@ -84,9 +86,9 @@ flowchart LR
   提取与限流、Controller 的 Admin/Distribution/Metrics 监听，以及 PostgreSQL
   管理状态；WorkerControlPlane 的 Register、Snapshot ACK、Runtime 心跳接收和
   Redis 会话栅栏。
-- **部分完成**：Gateway 传输与调度组件、Snapshot 本地存储、Worker ownership
+- **部分完成**：Gateway Outcome 上报、Checker 调度与健康状态链、Docker Compose/
-  与运行态领域组件、Docker Compose/Kubernetes 静态部署清单和 protobuf 契约。
+  Kubernetes 运行时 mTLS Overlay，以及 protobuf 契约。
-- **待完成**：带凭据 Proxy 分发、Gateway 进程装配、Outcome 上报、Checker 调度与健康状态链，
+- **待完成**：Outcome 上报、Checker 调度与健康状态链，
   以及 loadgen 和代表性集群压测。
 
 检查项数量不等于生产就绪度。静态部署清单与 protobuf descriptor 验证也不代表
@@ -137,7 +139,20 @@ go run ./cmd/proxy-controller -config CONFIG_FILE
 改用宿主机可达的存储地址。
 
 本地配置中的 `.invalid` Provider URL 是故障演示占位，不会提供真实代理。
-当前仓库没有 Gateway、Checker 或 loadgen 命令，因此不提供对应启动命令。
+Gateway 已提供启动命令；需要先启用 Controller `controlPlane` 并配置匹配的 mTLS
+证书（回环 fixture 可使用明文），再提供独立的拨号地址和 Worker 身份：
+
+```powershell
+go run ./cmd/proxy-gateway -config CONFIG_FILE `
+  -control-plane CONTROLLER_HOST:8443 `
+  -cluster-id CLUSTER_ID -worker-id WORKER_ID `
+  -instance-id INSTANCE_ID -zone ZONE
+```
+
+以上参数也可通过 `PROXY_POOL_CONTROL_PLANE_ADDRESS`、`PROXY_POOL_CLUSTER_ID`、
+`PROXY_POOL_WORKER_ID`、`PROXY_POOL_INSTANCE_ID` 与 `PROXY_POOL_ZONE` 提供。
+Gateway 的 `/livez`、`/readyz`、`/metrics` 使用配置中的 `metrics.listen`；无有效
+Snapshot 时 `/readyz` 返回 `503`。Checker 与 loadgen 命令尚未实现。
 
 ## 关键配置与入口
 
@@ -170,8 +185,8 @@ go run ./cmd/proxy-controller -config CONFIG_FILE
   ownership 索引，以及 Gateway 快照客户端。
 - **P0 - Checker 健康链**：Checker 调度、实际探测、Observation reducer，以及
   `FETCHED -> AVAILABLE / SUSPECT / UNHEALTHY` 状态链。
-- **P1 - Gateway 与 Routing**：`proxy-gateway` 命令、五种 Routing 策略、
+- **P1 - Gateway 与 Routing**：Gateway 进程、快照凭据分发、五种 Routing 策略与
-  `onUnavailable`、动态容量调整和 Drain 闭环。
+  `onUnavailable` 已接入；动态容量调整和 Drain 闭环待完成。
 - **P1 - 可观测与部署**：低基数业务指标、完整 Compose/Kubernetes 进程拓扑，
   以及故障转移和恢复演练。
 - **P2 - 容量证明**：`proxy-loadgen`、HTTP/CONNECT/Extract 分场景压测，以及

api/proto/controlplane/v1/controlplane.proto

@@ -64,6 +64,16 @@ message WorkerSnapshot {
   bytes checksum = 5;
   repeated RoutingRule routing = 6;
   repeated OwnedProxy proxies = 7;
+  // Credential materials are protected by the WorkerControlPlane mTLS session
+  // and retained only in the Gateway's current in-memory snapshot view.
+  repeated SnapshotCredential credentials = 14;
+}
+
+message SnapshotCredential {
+  string secret_ref = 1;
+  string credential_version = 2;
+  string username = 3;
+  string password = 4;
 }
 
 message SnapshotDelta {

cmd/proxy-gateway/main.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	"proxy-pool/internal/config"
+	"proxy-pool/internal/gateway/bootstrap"
+)
+
+const (
+	configEnvironment              = "PROXY_POOL_CONFIG"
+	controlPlaneAddressEnvironment = "PROXY_POOL_CONTROL_PLANE_ADDRESS"
+	clusterIDEnvironment           = "PROXY_POOL_CLUSTER_ID"
+	workerIDEnvironment            = "PROXY_POOL_WORKER_ID"
+	instanceIDEnvironment          = "PROXY_POOL_INSTANCE_ID"
+	zoneEnvironment                = "PROXY_POOL_ZONE"
+)
+
+type environmentLookup func(string) string
+type gatewayRun func(context.Context, bootstrap.Options) error
+
+func main() {
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+	os.Exit(execute(ctx, os.Args[1:], os.Getenv, bootstrap.Run, os.Stderr))
+}
+
+func execute(
+	ctx context.Context,
+	args []string,
+	getenv environmentLookup,
+	run gatewayRun,
+	stderr io.Writer,
+) int {
+	flags := flag.NewFlagSet("proxy-gateway", flag.ContinueOnError)
+	flags.SetOutput(stderr)
+	configPath := flags.String("config", "", "configuration file path")
+	controlPlaneAddress := flags.String("control-plane", "", "remote Controller control-plane address")
+	clusterID := flags.String("cluster-id", "", "cluster identifier")
+	workerID := flags.String("worker-id", "", "unique Worker identifier")
+	instanceID := flags.String("instance-id", "", "unique process instance identifier")
+	zone := flags.String("zone", "", "availability zone identifier")
+	if err := flags.Parse(args); err != nil {
+		if errors.Is(err, flag.ErrHelp) {
+			return 0
+		}
+		return 2
+	}
+	if flags.NArg() != 0 {
+		_, _ = fmt.Fprintln(stderr, "proxy-gateway: unexpected positional arguments")
+		return 2
+	}
+	if getenv != nil {
+		setIfEmpty(configPath, getenv(configEnvironment))
+		setIfEmpty(controlPlaneAddress, getenv(controlPlaneAddressEnvironment))
+		setIfEmpty(clusterID, getenv(clusterIDEnvironment))
+		setIfEmpty(workerID, getenv(workerIDEnvironment))
+		setIfEmpty(instanceID, getenv(instanceIDEnvironment))
+		setIfEmpty(zone, getenv(zoneEnvironment))
+	}
+	if ctx == nil || run == nil || !validValue(*configPath) || !validValue(*controlPlaneAddress) ||
+		!validValue(*clusterID) || !validValue(*workerID) || !validValue(*instanceID) || !validValue(*zone) {
+		_, _ = fmt.Fprintf(stderr,
+			"proxy-gateway: -config, -control-plane, -cluster-id, -worker-id, -instance-id and -zone are required; "+
+				"environment fallbacks: %s, %s, %s, %s, %s, %s\n",
+			configEnvironment, controlPlaneAddressEnvironment, clusterIDEnvironment, workerIDEnvironment, instanceIDEnvironment, zoneEnvironment,
+		)
+		return 2
+	}
+	err := run(ctx, bootstrap.Options{
+		ConfigPath: *configPath, Resolver: config.OSResolver{}, ControlPlaneAddress: *controlPlaneAddress,
+		ClusterID: *clusterID, WorkerID: *workerID, InstanceID: *instanceID, Zone: *zone,
+	})
+	if err == nil || (errors.Is(err, context.Canceled) && ctx.Err() != nil) {
+		return 0
+	}
+	_, _ = fmt.Fprintf(stderr, "proxy-gateway: %v\n", err)
+	return 1
+}
+
+func setIfEmpty(target *string, value string) {
+	if target != nil && *target == "" {
+		*target = value
+	}
+}
+
+func validValue(value string) bool {
+	return value != "" && strings.TrimSpace(value) == value
+}

cmd/proxy-gateway/main_test.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"context"
+	"io"
+	"strings"
+	"testing"
+
+	"proxy-pool/internal/gateway/bootstrap"
+)
+
+func TestExecutePassesExplicitGatewayIdentity(t *testing.T) {
+	t.Parallel()
+
+	var captured bootstrap.Options
+	status := execute(context.Background(), []string{
+		"-config", "gateway.yaml",
+		"-control-plane", "127.0.0.1:8443",
+		"-cluster-id", "cluster-a",
+		"-worker-id", "worker-a",
+		"-instance-id", "instance-a",
+		"-zone", "zone-a",
+	}, func(string) string { return "" }, func(_ context.Context, options bootstrap.Options) error {
+		captured = options
+		return nil
+	}, io.Discard)
+	if status != 0 {
+		t.Fatalf("execute() status = %d, want 0", status)
+	}
+	if captured.ConfigPath != "gateway.yaml" || captured.ControlPlaneAddress != "127.0.0.1:8443" ||
+		captured.ClusterID != "cluster-a" || captured.WorkerID != "worker-a" ||
+		captured.InstanceID != "instance-a" || captured.Zone != "zone-a" {
+		t.Fatalf("bootstrap options = %+v", captured)
+	}
+}
+
+func TestExecuteReadsGatewayOptionsFromEnvironment(t *testing.T) {
+	t.Parallel()
+
+	values := map[string]string{
+		configEnvironment:              "gateway.yaml",
+		controlPlaneAddressEnvironment: "127.0.0.1:8443",
+		clusterIDEnvironment:           "cluster-a",
+		workerIDEnvironment:            "worker-a",
+		instanceIDEnvironment:          "instance-a",
+		zoneEnvironment:                "zone-a",
+	}
+	var captured bootstrap.Options
+	status := execute(context.Background(), nil, func(name string) string { return values[name] }, func(_ context.Context, options bootstrap.Options) error {
+		captured = options
+		return nil
+	}, io.Discard)
+	if status != 0 || captured.WorkerID != "worker-a" || captured.ControlPlaneAddress != "127.0.0.1:8443" {
+		t.Fatalf("execute() = (%d, %+v)", status, captured)
+	}
+}
+
+func TestExecuteRejectsIncompleteGatewayOptions(t *testing.T) {
+	t.Parallel()
+
+	var output strings.Builder
+	status := execute(context.Background(), []string{"-config", "gateway.yaml"}, func(string) string { return "" }, nil, &output)
+	if status != 2 || !strings.Contains(output.String(), controlPlaneAddressEnvironment) {
+		t.Fatalf("execute() = (%d, %q), want usage error naming missing environment", status, output.String())
+	}
+}

docs/adr/005-redis-activity-pool.md

@@ -235,9 +235,9 @@ Provider Parser 继续通过 `credentials.Store` 生成 `SecretRef` 和
 在活动池状态提交之前。Distribution 所需凭据只保存在 Proxy 硬 TTL 和幂等 TTL
 约束内，Extract 脚本可原子保存完整重放响应。
 
-Gateway Snapshot 继续只携带凭据引用；Gateway 通过控制面下发到节点内存的
+Gateway Snapshot 携带凭据引用及按引用去重的材料；材料只经 mTLS 控制面进入
-凭据材料解析引用，不在请求热路径查询 Redis。凭据分发与轮换属于独立后续
+Gateway 当前内存 View，不在请求热路径查询 Redis，也不进入 PostgreSQL。凭据轮换的
-实现，不改变本 ADR 的活动池边界。
+主动推送仍属于后续实现，不改变本 ADR 的活动池边界。
 
 ### 库存真值
 

docs/api/control-plane.md

@@ -27,14 +27,17 @@ Controller 已实现并验证 `RegisterWorker`、`AcknowledgeSnapshot` 和
 
 `WatchSnapshots` 已在 Register 后发送与当前 ownership epoch 对应的基础完整快照，
 Gateway 校验后 ACK 并开始 Runtime 心跳。Controller 会从 Redis 的有界 Worker ownership
-索引构建无凭据引用的已归属 Proxy 内容，并将租约到期收紧到 Proxy 的
+索引构建已归属 Proxy 内容，并将租约到期收紧到 Proxy 的 `usable_until`。Proxy 引用的
-`usable_until`；带凭据 Proxy 会 fail-closed，直到凭据材料分发完成。完整 Snapshot
+凭据材料按 `secret_ref + credential_version` 去重，随完整 Snapshot 经 mTLS 下发，仅保留在
+Gateway 当前内存 View。完整 Snapshot
 已从配置原始顺序和 Admin 当前状态合成 Gateway Routing，并与 Proxy 一起纳入 checksum；
 Gateway 已将该 payload 编译并原子发布到与 Proxy 相同版本的本地 View，动态 Router 只匹配
 当前未过期 View；派发器已按五种策略从该 View 选择上游，且在 Proxy 容量耗尽时只在该
 View 的其余候选中回退。`wait_timeout` 随 `on_unavailable=WAIT` 下发并在 Gateway 作为有界
-本地容量等待使用；`DIRECT` 仍先经过 TargetPolicy 再建立 HTTP/CONNECT 直连。增量、Gateway
+本地容量等待使用；`DIRECT` 仍先经过 TargetPolicy 再建立 HTTP/CONNECT 直连。`proxy-gateway`
-进程装配、Outcome 与 Checker 闭环尚未实现。`ReportOutcomes` 仍明确返回 `Unimplemented`；
+已装配 Register/Watch/ACK/Runtime 会话、HTTP 代理监听和 Snapshot 就绪探针；控制面中断时
+保持进程运行并以有界退避重连，未取得有效 Snapshot 的 Worker 不会 Ready。增量、带凭据
+Outcome 与 Checker 闭环尚未实现。`ReportOutcomes` 仍明确返回 `Unimplemented`；
 `100,000 QPS` 仍是未验证的设计目标。
 
 `WatchSnapshots` 建立时校验当前 session；每次签发快照引用时也把 `session_id`
@@ -162,4 +165,21 @@ Routing 决定 AVAILABLE、SUSPECT 或 UNHEALTHY，并更新 Redis 活动池，
 
 集群环境使用 mTLS，证书身份绑定 Worker/Checker 类型和环境。服务端校验
 消息中的逻辑 ID 与证书授权一致，设置单消息大小、流持续时间、并发 Stream
-和上报批次上限。`secret_ref` 是受控引用，不在 Proto 中传播真实密码。
+和上报批次上限。`secret_ref` 是受控引用；完整 Snapshot 的 `credentials` 在 mTLS 会话中
+携带引用对应材料，Controller 和 Gateway 仅在内存处理，禁止写入 Redis/PostgreSQL、日志或指标。
+
+## 9. Gateway 启动参数
+
+Gateway 不复用 `controlPlane.listen` 作为客户端地址。`listen` 是 Controller 的
+服务端绑定地址；每个 Gateway 必须显式提供以下独立参数或同名环境变量：
+
+- `-control-plane` / `PROXY_POOL_CONTROL_PLANE_ADDRESS`：Controller 的可拨号地址。
+- `-cluster-id` / `PROXY_POOL_CLUSTER_ID`：快照所属集群。
+- `-worker-id` / `PROXY_POOL_WORKER_ID`：唯一逻辑 Worker。
+- `-instance-id` / `PROXY_POOL_INSTANCE_ID`：唯一进程实例。
+- `-zone` / `PROXY_POOL_ZONE`：实例可用区。
+
+当 `controlPlane.tls.mode=mtls` 时，Gateway 使用 `controlPlane.gatewayTLS` 中独立的
+客户端证书、私钥和 Controller CA 发起 TLS 1.3 连接；证书必须符合 Controller 的
+SPIFFE Worker 身份校验。
+`disabled` 仅接受回环控制面地址，供本地 fixture 使用。

docs/configuration/reference.md

@@ -21,8 +21,9 @@ go run ./cmd/proxy-controller -config CONFIG_FILE
 所有 Controller 副本必须一致，且该密钥不得放入 YAML 或 PostgreSQL。该入口已装配
 PostgreSQL 管理面迁移、Redis 活动池、Distribution/Admin 独立监听与优雅停机；
 Controller Metrics 独立监听、`/livez`、`/readyz` 和基础 Prometheus 运行时指标；
-Provider 自动补池、分布式配额、动态重载和 Admin 低基数统计已装配。完整 Gateway、
+Provider 自动补池、分布式配额、动态重载和 Admin 低基数统计已装配。Gateway 进程、
-Checker、Worker 控制面与代表性负载验证仍在后续实施范围。
+Worker 控制面会话和 Snapshot 就绪探针已装配；Checker、带凭据 Proxy 分发与代表性
+负载验证仍在后续实施范围。
 
 所有时间值使用 Go duration，例如 `500ms`、`30s`、`5m`。示例中的
 `${TOKEN}`、`${PASSWORD}`、`${POSTGRES_URL}` 等由加载器从同名环境变量
@@ -166,6 +167,10 @@ controlPlane:
     clientCAFile: /run/secrets/worker-ca.pem
     trustDomain: proxy.example
     environment: production
+  gatewayTLS:
+    certFile: /run/secrets/gateway-cert.pem
+    keyFile: /run/secrets/gateway-key.pem
+    serverCAFile: /run/secrets/controller-ca.pem
 ```
 
 - `protocolVersion` 当前固定为 `1`。
@@ -175,6 +180,15 @@ controlPlane:
 - `tls.mode` 只能为 `disabled` 或 `mtls`。`disabled` 只允许回环监听；`mtls` 必须
   同时配置证书、私钥、客户端 CA、全小写 DNS `trustDomain` 和单 URI 路径段
   `environment`。
+- `gatewayTLS` 是 Gateway 的客户端证书、私钥和 Controller CA，与 `tls` 的服务端
+  证书和 Worker CA 分离。三项可以同时省略（未运行 Gateway），配置任一项时必须完整提供。
+
+Gateway 连接 Controller 时使用独立启动参数而非 `controlPlane.listen`。至少设置
+`PROXY_POOL_CONTROL_PLANE_ADDRESS`、`PROXY_POOL_CLUSTER_ID`、
+`PROXY_POOL_WORKER_ID`、`PROXY_POOL_INSTANCE_ID` 和 `PROXY_POOL_ZONE`，详见
+[控制面协议](../api/control-plane.md#9-gateway-启动参数)。基础 Compose/Kubernetes
+模板保持 `controlPlane.enabled: false`，环境 Overlay 挂载 mTLS 证书并启用后才可启动
+Gateway。
 
 ## 5. Gateway
 

docs/design/project-structure.md

@@ -12,7 +12,7 @@ proxy-pool/
 ├── internal/
 │   ├── config/              # 严格配置解析和校验
 │   ├── domain/              # 无传输、无存储依赖的领域模型
-│   ├── gateway/             # snapshot、dispatch、server、transport
+│   ├── gateway/             # bootstrap、snapshot、dispatch、server、transport
 │   ├── controller/          # provider、pool、extraction、operations、runtime、bootstrap
 │   ├── adapters/            # PostgreSQL、Redis、Provider API、内存适配
 │   └── platform/            # HTTP、安全、日志、指标、停机和进程装配
@@ -34,6 +34,10 @@ proxy-pool/
 选择、session 与重试资格等热路径决策；`transport` 独占连接池、上游握手和
 隧道生命周期。任何包都不得从热路径反向调用 Controller 存储。
 
+`gateway/bootstrap` 只在进程启动时加载配置、建立 gRPC 控制面 Session、组装 HTTP
+代理与 Metrics 监听；请求热路径只读取本地 Snapshot。`/readyz` 要求当前 Snapshot
+尚未到期，控制面断开期间以有界退避重连而不访问 Redis/PostgreSQL。
+
 ### proxy-controller
 
 Controller 是首版模块化单体。Provider、Pool、Routing 和 Extraction 共享

docs/development/implementation-plan.md

@@ -212,16 +212,18 @@ Prometheus 运行时指标，三监听器隔离已通过测试；业务指标仍
 WorkerControlPlane 现已接入 Controller 生命周期：Register、ACK 和 Runtime
 报告均经 Redis 服务端 TTL 的 session/issued-snapshot/ACK 栅栏校验；mTLS SPIFFE
 身份、消息/流限制和有界停机已实现。`WatchSnapshots` 会发送当前 epoch 的基础完整
-Snapshot 并保持连接；Gateway 已具备 Register/Watch/ACK/Runtime 会话协调组件。
+Snapshot 并保持连接；Gateway 已具备 Register/Watch/ACK/Runtime 会话协调组件与
-按 Worker 的可下发 ownership 索引已进入 Redis 原子脚本，并可构建无凭据引用的
+`proxy-gateway` 进程装配。
-已归属 Proxy payload。Snapshot 签发与 session 匹配在同一 Redis Lua 操作中完成，
+按 Worker 的可下发 ownership 索引已进入 Redis 原子脚本，并可构建已归属 Proxy、
+去重凭据材料和 Routing 的完整 payload。Snapshot 签发与 session 匹配在同一 Redis Lua 操作中完成，
 重注册会清除旧引用，避免迟到 Stream 覆盖新 session。Worker 服务端会在最近完整
 Snapshot 的 `valid_until` 到达时结束流；公用 `SessionSupervisor` 已为 Gateway 调用方
 提供可恢复错误的有界指数退避重连，并在参数/认证/协议错误时停止。Gateway Routing
 payload 已按配置顺序和 Admin revision/current 状态发布并覆盖 checksum；Gateway 已将其与
 Proxy 原子编译为同版本 View，动态 Router 只匹配该未过期 View。派发器的五种上游选择已
 接入该 View，并在容量耗尽时在同版本候选中回退；`onUnavailable` 的 reject、wait 与 direct
-已接入 Gateway，凭据分发、Gateway 命令与 Outcome 上报仍未实现。
+已接入 Gateway；`proxy-gateway` 已装配本地 HTTP/Metrics 监听、快照就绪探针和
+控制面重连与快照凭据分发，Outcome 上报仍未实现。
 
 已新增公用 `domain/activitypool` 契约及并发安全内存参考实现，Provider
 Reconciler 通过 `UpsertFetched` 写入带供应商 TTL 和分配安全余量的批次；已覆盖
@@ -258,7 +260,7 @@ Controller 多副本共享同一计数。Client 身份只以 SHA-256 摘要进
 原子回收历史字段；Redis 异常 fail-closed 并返回 503，真实额度耗尽返回 429。
 Gateway 请求热路径仍只使用本地准入，不增加 Redis/PostgreSQL 调用。
 WorkerControlPlane gRPC 接收端、session 签发/心跳、Snapshot ACK 账本、基础
-Snapshot 流和 Gateway 会话客户端已完成；权威 Proxy/Routing 发布、凭据分发、
+Snapshot 流、Gateway 会话客户端与快照凭据分发已完成；权威 Proxy/Routing 发布、
 Outcome 和健康执行链仍待完成，因此 Task 10 尚未全部完成。
 
 ## Task 11: Checker and Health Reducer

docs/requirements/completion-audit.md

@@ -37,7 +37,9 @@
 - `OPS-001`：完整 Snapshot 目标、epoch/version、校验和验证及原子替换。
 - `CAP-001 / GW 热路径边界`：本地 Dispatch 条件过滤与原子容量预留。
 - `GW-*`：HTTP 正向代理、HTTPS CONNECT、双向 Tunnel、超时、重试、保护链与
-  优雅停机 Handler 已实现并通过定向测试。
+  优雅停机 Handler 已实现并通过定向测试。`proxy-gateway` 已装配本地 HTTP/Metrics
+  监听、快照就绪探针、显式控制面拨号和 Register/Watch/ACK/Runtime 会话；本地 gRPC
+  集成测试验证收到有效 Snapshot 后才 Ready，并可完成 direct 路由。
 - `PROVIDER-*`：Provider HTTP Client、严格响应上限、模板解析安全边界、凭据
   引用 Store 与 Reconciler Adapter 已实现。
 - `DIST/Admin HTTP`：严格 JSON、Request ID、Problem 响应及 Distribution/Admin
@@ -51,9 +53,10 @@
   服务端 TTL，负向 ACK 会关闭 Runtime 写入栅栏。Controller 已装配 loopback
   plaintext fixture 与 SPIFFE mTLS 服务端；基础 Snapshot 流和 Gateway 的
   Register/Watch/ACK/Runtime 会话协调已实现。Redis 以 Worker 可下发 ownership
-  索引构建无凭据引用的已归属 Proxy payload，并以租约收紧可用期；Gateway Routing
+索引构建已归属 Proxy payload，并以租约收紧可用期；凭据材料按引用去重并与 Proxy/
-  payload 已由配置顺序和 Admin 当前状态合成并覆盖 Snapshot checksum，其运行时消费、
+Routing 一起纳入 Snapshot checksum，仅在 mTLS 和 Gateway 当前内存 View 中处理。Gateway
-  凭据分发、Outcome 和 Checker 尚未闭环。Snapshot 签发在 Redis 中原子匹配当前
+Routing payload 已由配置顺序和 Admin 当前状态合成并覆盖 Snapshot checksum，其运行时消费、
+Outcome 和 Checker 尚未闭环。Snapshot 签发在 Redis 中原子匹配当前
   `session_id`，重注册会清除旧引用，迟到旧 Stream 不会覆盖新 session。Controller
   在最近成功下发的 Snapshot `valid_until` 到达时关闭流；Gateway 的公用
   `SessionSupervisor` 已实现可恢复错误的有界退避重连。Gateway 会校验并执行 Snapshot
@@ -88,10 +91,10 @@ CI 已配置 Linux race job。PostgreSQL 18 和 Redis 8.2 的隔离 Adapter fixt
 
 以下已有设计、接口或部署位置，但尚无端到端生产实现：
 
-1. `cmd/proxy-gateway/checker/loadgen` 进程装配；`proxy-controller` 已完成
+1. `cmd/proxy-checker/loadgen` 进程装配；`proxy-controller` 已完成
-   Admin/Distribution/Metrics 与 PostgreSQL/Redis 启动装配，但 Provider 和业务
+   Admin/Distribution/Metrics 与 PostgreSQL/Redis 启动装配，`proxy-gateway` 已完成
-   指标链未闭环。
+   HTTP/Metrics 与控制面 Session 装配，但 Provider 和业务指标链未闭环。
-2. Gateway 进程装配、生产连接池调优与代表性流量压测。
+2. Gateway 的带凭据 Proxy 分发、生产连接池调优与代表性流量压测。
 3. Provider 分布式 singleflight/Leader、长期凭据回收和累计额度执行器。
 4. Controller 的 PostgreSQL 连接池、迁移和 pgx Adapter 启动装配已完成；
    公用 bootstrap 已通过 PostgreSQL 18 + Redis 8.2 双存储集成，Controller
@@ -99,9 +102,9 @@ CI 已配置 Linux race job。PostgreSQL 18 和 Redis 8.2 的隔离 Adapter fixt
 5. Worker Register/ACK/Runtime gRPC 接收路径、Redis 服务端 TTL 会话生命周期、
    SPIFFE mTLS 校验和 Controller 生命周期接线已完成；Redis Provider Leader、
    分布式请求额度、Distribution Client 限制和 Provider 状态丢失重建已完成。
-6. Worker 基础网络快照流、无凭据引用 Proxy/Gateway Routing payload、Gateway Snapshot
+6. Worker 基础网络快照流、Proxy/Gateway Routing/凭据 Snapshot payload、Gateway Snapshot
-   客户端、同版本 Routing 编译/动态匹配、五种策略上游选择与 reject/wait/direct 已完成；凭据
+   客户端和进程装配、同版本 Routing 编译/动态匹配、五种策略上游选择与 reject/wait/direct 已完成；
-   分发与 Outcome 上报仍待完成。Redis ownership drain/ACK/过期回收及按 Worker 的可下发索引已完成。
+   Outcome 上报仍待完成。Redis ownership drain/ACK/过期回收及按 Worker 的可下发索引已完成。
 7. Checker 调度、探测器和健康 reducer。
 8. Admin/Distribution 细粒度授权和审计查询；Distribution 分布式限流已完成。
 9. 真实 Compose/Kubernetes 集成、故障演练和代表性集群负载测试。

docs/requirements/traceability.md

@@ -7,9 +7,9 @@
 
 | ID | 最终需求 | 来源 | 验证证据 |
 |---|---|---|---|
-| ARCH-001 | 数据面 Worker 与控制面 Controller 分离 | 1-70 | 包、协议和部署拓扑已分离；Controller 已运行 Worker Register/Watch/ACK/Runtime gRPC，并发布无凭据 Proxy/Gateway Routing 完整快照；Gateway 已将同版本 Routing 编译为动态匹配 View。Gateway/Checker/Loadgen 构建产物、策略派发与 `onUnavailable` 待实现 |
+| ARCH-001 | 数据面 Worker 与控制面 Controller 分离 | 1-70 | 包、协议和部署拓扑已分离；Controller 已运行 Worker Register/Watch/ACK/Runtime gRPC，并发布 Proxy/Gateway Routing/按引用去重凭据完整快照；Gateway 已将它们编译为同版本动态 View，并由独立进程维护控制面会话。Checker/Loadgen 构建产物待实现 |
-| ARCH-002 | 热路径只做认证、本地路由和网络转发 | 1-70, 380-430 | Snapshot/Dispatch 及依赖边界已验证；完整 Gateway 进程与代表性性能剖析待完成 |
+| ARCH-002 | 热路径只做认证、本地路由和网络转发 | 1-70, 380-430 | Gateway bootstrap 集成测试验证启动期控制面会话与快照就绪，HTTP 请求只走本地 Snapshot/Dispatch；代表性性能剖析待完成 |
-| ARCH-003 | Gateway、Distribution、Admin、Metrics 独立入口 | 8904-8958 | Controller 命令已装配 Distribution/Admin/Metrics 三个独立监听及联动停机；Gateway 生产入口待装配 |
+| ARCH-003 | Gateway、Distribution、Admin、Metrics 独立入口 | 8904-8958 | Controller 命令已装配 Distribution/Admin/Metrics 三个独立监听及联动停机；Gateway 命令已装配代理与 Metrics 监听，运行时 mTLS 部署 Overlay 待完成 |
 | ARCH-004 | Controller 集中 Provider 获取与切换 | 1403-1580 | Redis Leader、动态 Provider Supervisor 与 Bootstrap 生产装配已完成；Admin disable/reload 驱动取消替换，多副本按权威 HMAC 指纹和 revision 栅栏收敛并拒绝旧配置换主；Routing 切换到 Drain 的编排待完成 |
 | ARCH-005 | 100k QPS 峰值使用多 Worker 集群 | 当前会话 | 未验证设计目标；待代表性集群负载报告 |
 

gen/controlplane/v1/controlplane.pb.go

@@ -604,6 +604,9 @@ type WorkerSnapshot struct {
 	Checksum       []byte                 `protobuf:"bytes,5,opt,name=checksum,proto3" json:"checksum,omitempty"`
 	Routing        []*RoutingRule         `protobuf:"bytes,6,rep,name=routing,proto3" json:"routing,omitempty"`
 	Proxies        []*OwnedProxy          `protobuf:"bytes,7,rep,name=proxies,proto3" json:"proxies,omitempty"`
+	// Credential materials are protected by the WorkerControlPlane mTLS session
+	// and retained only in the Gateway's current in-memory snapshot view.
+	Credentials   []*SnapshotCredential `protobuf:"bytes,14,rep,name=credentials,proto3" json:"credentials,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -687,6 +690,81 @@ func (x *WorkerSnapshot) GetProxies() []*OwnedProxy {
 	return nil
 }
 
+func (x *WorkerSnapshot) GetCredentials() []*SnapshotCredential {
+	if x != nil {
+		return x.Credentials
+	}
+	return nil
+}
+
+type SnapshotCredential struct {
+	state             protoimpl.MessageState `protogen:"open.v1"`
+	SecretRef         string                 `protobuf:"bytes,1,opt,name=secret_ref,json=secretRef,proto3" json:"secret_ref,omitempty"`
+	CredentialVersion string                 `protobuf:"bytes,2,opt,name=credential_version,json=credentialVersion,proto3" json:"credential_version,omitempty"`
+	Username          string                 `protobuf:"bytes,3,opt,name=username,proto3" json:"username,omitempty"`
+	Password          string                 `protobuf:"bytes,4,opt,name=password,proto3" json:"password,omitempty"`
+	unknownFields     protoimpl.UnknownFields
+	sizeCache         protoimpl.SizeCache
+}
+
+func (x *SnapshotCredential) Reset() {
+	*x = SnapshotCredential{}
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[5]
+	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+	ms.StoreMessageInfo(mi)
+}
+
+func (x *SnapshotCredential) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SnapshotCredential) ProtoMessage() {}
+
+func (x *SnapshotCredential) ProtoReflect() protoreflect.Message {
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[5]
+	if x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SnapshotCredential.ProtoReflect.Descriptor instead.
+func (*SnapshotCredential) Descriptor() ([]byte, []int) {
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *SnapshotCredential) GetSecretRef() string {
+	if x != nil {
+		return x.SecretRef
+	}
+	return ""
+}
+
+func (x *SnapshotCredential) GetCredentialVersion() string {
+	if x != nil {
+		return x.CredentialVersion
+	}
+	return ""
+}
+
+func (x *SnapshotCredential) GetUsername() string {
+	if x != nil {
+		return x.Username
+	}
+	return ""
+}
+
+func (x *SnapshotCredential) GetPassword() string {
+	if x != nil {
+		return x.Password
+	}
+	return ""
+}
+
 type SnapshotDelta struct {
 	state               protoimpl.MessageState `protogen:"open.v1"`
 	BaseVersion         uint64                 `protobuf:"varint,1,opt,name=base_version,json=baseVersion,proto3" json:"base_version,omitempty"`
@@ -704,7 +782,7 @@ type SnapshotDelta struct {
 
 func (x *SnapshotDelta) Reset() {
 	*x = SnapshotDelta{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[5]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[6]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -716,7 +794,7 @@ func (x *SnapshotDelta) String() string {
 func (*SnapshotDelta) ProtoMessage() {}
 
 func (x *SnapshotDelta) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[5]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[6]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -729,7 +807,7 @@ func (x *SnapshotDelta) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SnapshotDelta.ProtoReflect.Descriptor instead.
 func (*SnapshotDelta) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{5}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *SnapshotDelta) GetBaseVersion() uint64 {
@@ -813,7 +891,7 @@ type RoutingRule struct {
 
 func (x *RoutingRule) Reset() {
 	*x = RoutingRule{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[6]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[7]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -825,7 +903,7 @@ func (x *RoutingRule) String() string {
 func (*RoutingRule) ProtoMessage() {}
 
 func (x *RoutingRule) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[6]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[7]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -838,7 +916,7 @@ func (x *RoutingRule) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RoutingRule.ProtoReflect.Descriptor instead.
 func (*RoutingRule) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{6}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *RoutingRule) GetName() string {
@@ -922,7 +1000,7 @@ type RoutingStrategy struct {
 
 func (x *RoutingStrategy) Reset() {
 	*x = RoutingStrategy{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[7]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[8]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -934,7 +1012,7 @@ func (x *RoutingStrategy) String() string {
 func (*RoutingStrategy) ProtoMessage() {}
 
 func (x *RoutingStrategy) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[7]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[8]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -947,7 +1025,7 @@ func (x *RoutingStrategy) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RoutingStrategy.ProtoReflect.Descriptor instead.
 func (*RoutingStrategy) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{7}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *RoutingStrategy) GetType() StrategyType {
@@ -992,7 +1070,7 @@ type OwnedProxy struct {
 
 func (x *OwnedProxy) Reset() {
 	*x = OwnedProxy{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[8]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[9]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1004,7 +1082,7 @@ func (x *OwnedProxy) String() string {
 func (*OwnedProxy) ProtoMessage() {}
 
 func (x *OwnedProxy) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[8]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[9]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1017,7 +1095,7 @@ func (x *OwnedProxy) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OwnedProxy.ProtoReflect.Descriptor instead.
 func (*OwnedProxy) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{8}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *OwnedProxy) GetId() string {
@@ -1127,7 +1205,7 @@ type AcknowledgeSnapshotRequest struct {
 
 func (x *AcknowledgeSnapshotRequest) Reset() {
 	*x = AcknowledgeSnapshotRequest{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[9]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[10]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1139,7 +1217,7 @@ func (x *AcknowledgeSnapshotRequest) String() string {
 func (*AcknowledgeSnapshotRequest) ProtoMessage() {}
 
 func (x *AcknowledgeSnapshotRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[9]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[10]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1152,7 +1230,7 @@ func (x *AcknowledgeSnapshotRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use AcknowledgeSnapshotRequest.ProtoReflect.Descriptor instead.
 func (*AcknowledgeSnapshotRequest) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{9}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *AcknowledgeSnapshotRequest) GetWorkerId() string {
@@ -1223,7 +1301,7 @@ type OutcomeBatch struct {
 
 func (x *OutcomeBatch) Reset() {
 	*x = OutcomeBatch{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[10]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[11]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1235,7 +1313,7 @@ func (x *OutcomeBatch) String() string {
 func (*OutcomeBatch) ProtoMessage() {}
 
 func (x *OutcomeBatch) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[10]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[11]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1248,7 +1326,7 @@ func (x *OutcomeBatch) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use OutcomeBatch.ProtoReflect.Descriptor instead.
 func (*OutcomeBatch) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{10}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{11}
 }
 
 func (x *OutcomeBatch) GetWorkerId() string {
@@ -1294,7 +1372,7 @@ type ProxyOutcome struct {
 
 func (x *ProxyOutcome) Reset() {
 	*x = ProxyOutcome{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[11]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[12]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1306,7 +1384,7 @@ func (x *ProxyOutcome) String() string {
 func (*ProxyOutcome) ProtoMessage() {}
 
 func (x *ProxyOutcome) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[11]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[12]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1319,7 +1397,7 @@ func (x *ProxyOutcome) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProxyOutcome.ProtoReflect.Descriptor instead.
 func (*ProxyOutcome) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{11}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{12}
 }
 
 func (x *ProxyOutcome) GetProxyId() string {
@@ -1380,7 +1458,7 @@ type ReportOutcomesResponse struct {
 
 func (x *ReportOutcomesResponse) Reset() {
 	*x = ReportOutcomesResponse{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[12]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[13]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1392,7 +1470,7 @@ func (x *ReportOutcomesResponse) String() string {
 func (*ReportOutcomesResponse) ProtoMessage() {}
 
 func (x *ReportOutcomesResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[12]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[13]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1405,7 +1483,7 @@ func (x *ReportOutcomesResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReportOutcomesResponse.ProtoReflect.Descriptor instead.
 func (*ReportOutcomesResponse) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{12}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{13}
 }
 
 func (x *ReportOutcomesResponse) GetAcceptedThroughSequence() uint64 {
@@ -1430,7 +1508,7 @@ type ReportRuntimeRequest struct {
 
 func (x *ReportRuntimeRequest) Reset() {
 	*x = ReportRuntimeRequest{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[13]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[14]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1442,7 +1520,7 @@ func (x *ReportRuntimeRequest) String() string {
 func (*ReportRuntimeRequest) ProtoMessage() {}
 
 func (x *ReportRuntimeRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[13]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[14]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1455,7 +1533,7 @@ func (x *ReportRuntimeRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReportRuntimeRequest.ProtoReflect.Descriptor instead.
 func (*ReportRuntimeRequest) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{13}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{14}
 }
 
 func (x *ReportRuntimeRequest) GetWorkerId() string {
@@ -1519,7 +1597,7 @@ type ProxyRuntime struct {
 
 func (x *ProxyRuntime) Reset() {
 	*x = ProxyRuntime{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[14]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[15]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1531,7 +1609,7 @@ func (x *ProxyRuntime) String() string {
 func (*ProxyRuntime) ProtoMessage() {}
 
 func (x *ProxyRuntime) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[14]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[15]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1544,7 +1622,7 @@ func (x *ProxyRuntime) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ProxyRuntime.ProtoReflect.Descriptor instead.
 func (*ProxyRuntime) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{14}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{15}
 }
 
 func (x *ProxyRuntime) GetProxyId() string {
@@ -1586,7 +1664,7 @@ type ReportRuntimeResponse struct {
 
 func (x *ReportRuntimeResponse) Reset() {
 	*x = ReportRuntimeResponse{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[15]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[16]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1598,7 +1676,7 @@ func (x *ReportRuntimeResponse) String() string {
 func (*ReportRuntimeResponse) ProtoMessage() {}
 
 func (x *ReportRuntimeResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[15]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[16]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1611,7 +1689,7 @@ func (x *ReportRuntimeResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReportRuntimeResponse.ProtoReflect.Descriptor instead.
 func (*ReportRuntimeResponse) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{15}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{16}
 }
 
 func (x *ReportRuntimeResponse) GetAcceptedOwnershipEpoch() uint64 {
@@ -1647,7 +1725,7 @@ type StreamCheckTasksRequest struct {
 
 func (x *StreamCheckTasksRequest) Reset() {
 	*x = StreamCheckTasksRequest{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[16]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[17]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1659,7 +1737,7 @@ func (x *StreamCheckTasksRequest) String() string {
 func (*StreamCheckTasksRequest) ProtoMessage() {}
 
 func (x *StreamCheckTasksRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[16]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[17]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1672,7 +1750,7 @@ func (x *StreamCheckTasksRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StreamCheckTasksRequest.ProtoReflect.Descriptor instead.
 func (*StreamCheckTasksRequest) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{16}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{17}
 }
 
 func (x *StreamCheckTasksRequest) GetCheckerId() string {
@@ -1723,7 +1801,7 @@ type CheckTask struct {
 
 func (x *CheckTask) Reset() {
 	*x = CheckTask{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[17]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[18]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1735,7 +1813,7 @@ func (x *CheckTask) String() string {
 func (*CheckTask) ProtoMessage() {}
 
 func (x *CheckTask) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[17]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[18]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1748,7 +1826,7 @@ func (x *CheckTask) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CheckTask.ProtoReflect.Descriptor instead.
 func (*CheckTask) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{17}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{18}
 }
 
 func (x *CheckTask) GetTaskId() string {
@@ -1845,7 +1923,7 @@ type ObservationBatch struct {
 
 func (x *ObservationBatch) Reset() {
 	*x = ObservationBatch{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[18]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[19]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1857,7 +1935,7 @@ func (x *ObservationBatch) String() string {
 func (*ObservationBatch) ProtoMessage() {}
 
 func (x *ObservationBatch) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[18]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[19]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1870,7 +1948,7 @@ func (x *ObservationBatch) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ObservationBatch.ProtoReflect.Descriptor instead.
 func (*ObservationBatch) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{18}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{19}
 }
 
 func (x *ObservationBatch) GetCheckerId() string {
@@ -1905,7 +1983,7 @@ type HealthObservation struct {
 
 func (x *HealthObservation) Reset() {
 	*x = HealthObservation{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[19]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[20]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -1917,7 +1995,7 @@ func (x *HealthObservation) String() string {
 func (*HealthObservation) ProtoMessage() {}
 
 func (x *HealthObservation) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[19]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[20]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1930,7 +2008,7 @@ func (x *HealthObservation) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use HealthObservation.ProtoReflect.Descriptor instead.
 func (*HealthObservation) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{19}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{20}
 }
 
 func (x *HealthObservation) GetTaskId() string {
@@ -2013,7 +2091,7 @@ type ReportObservationsResponse struct {
 
 func (x *ReportObservationsResponse) Reset() {
 	*x = ReportObservationsResponse{}
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[20]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[21]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -2025,7 +2103,7 @@ func (x *ReportObservationsResponse) String() string {
 func (*ReportObservationsResponse) ProtoMessage() {}
 
 func (x *ReportObservationsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_controlplane_v1_controlplane_proto_msgTypes[20]
+	mi := &file_controlplane_v1_controlplane_proto_msgTypes[21]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -2038,7 +2116,7 @@ func (x *ReportObservationsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ReportObservationsResponse.ProtoReflect.Descriptor instead.
 func (*ReportObservationsResponse) Descriptor() ([]byte, []int) {
-	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{20}
+	return file_controlplane_v1_controlplane_proto_rawDescGZIP(), []int{21}
 }
 
 func (x *ReportObservationsResponse) GetAccepted() uint32 {
@@ -2086,7 +2164,7 @@ const file_controlplane_v1_controlplane_proto_rawDesc = "" +
 	"\x10SnapshotEnvelope\x12@\n" +
 	"\x04full\x18\x01 \x01(\v2*.proxy_pool.controlplane.v1.WorkerSnapshotH\x00R\x04full\x12A\n" +
 	"\x05delta\x18\x02 \x01(\v2).proxy_pool.controlplane.v1.SnapshotDeltaH\x00R\x05deltaB\t\n" +
-	"\apayload\"\xf0\x02\n" +
+	"\apayload\"\xc2\x03\n" +
 	"\x0eWorkerSnapshot\x12\x18\n" +
 	"\aversion\x18\x01 \x01(\x04R\aversion\x12'\n" +
 	"\x0fownership_epoch\x18\x02 \x01(\x04R\x0eownershipEpoch\x12=\n" +
@@ -2095,7 +2173,14 @@ const file_controlplane_v1_controlplane_proto_rawDesc = "" +
 	"validUntil\x12\x1a\n" +
 	"\bchecksum\x18\x05 \x01(\fR\bchecksum\x12A\n" +
 	"\arouting\x18\x06 \x03(\v2'.proxy_pool.controlplane.v1.RoutingRuleR\arouting\x12@\n" +
-	"\aproxies\x18\a \x03(\v2&.proxy_pool.controlplane.v1.OwnedProxyR\aproxies\"\xd7\x03\n" +
+	"\aproxies\x18\a \x03(\v2&.proxy_pool.controlplane.v1.OwnedProxyR\aproxies\x12P\n" +
+	"\vcredentials\x18\x0e \x03(\v2..proxy_pool.controlplane.v1.SnapshotCredentialR\vcredentials\"\x9a\x01\n" +
+	"\x12SnapshotCredential\x12\x1d\n" +
+	"\n" +
+	"secret_ref\x18\x01 \x01(\tR\tsecretRef\x12-\n" +
+	"\x12credential_version\x18\x02 \x01(\tR\x11credentialVersion\x12\x1a\n" +
+	"\busername\x18\x03 \x01(\tR\busername\x12\x1a\n" +
+	"\bpassword\x18\x04 \x01(\tR\bpassword\"\xd7\x03\n" +
 	"\rSnapshotDelta\x12!\n" +
 	"\fbase_version\x18\x01 \x01(\x04R\vbaseVersion\x12\x18\n" +
 	"\aversion\x18\x02 \x01(\x04R\aversion\x12'\n" +
@@ -2295,7 +2380,7 @@ func file_controlplane_v1_controlplane_proto_rawDescGZIP() []byte {
 }
 
 var file_controlplane_v1_controlplane_proto_enumTypes = make([]protoimpl.EnumInfo, 5)
-var file_controlplane_v1_controlplane_proto_msgTypes = make([]protoimpl.MessageInfo, 25)
+var file_controlplane_v1_controlplane_proto_msgTypes = make([]protoimpl.MessageInfo, 26)
 var file_controlplane_v1_controlplane_proto_goTypes = []any{
 	(StrategyType)(0),                  // 0: proxy_pool.controlplane.v1.StrategyType
 	(UnavailableAction)(0),             // 1: proxy_pool.controlplane.v1.UnavailableAction
@@ -2307,87 +2392,89 @@ var file_controlplane_v1_controlplane_proto_goTypes = []any{
 	(*WatchSnapshotsRequest)(nil),      // 7: proxy_pool.controlplane.v1.WatchSnapshotsRequest
 	(*SnapshotEnvelope)(nil),           // 8: proxy_pool.controlplane.v1.SnapshotEnvelope
 	(*WorkerSnapshot)(nil),             // 9: proxy_pool.controlplane.v1.WorkerSnapshot
-	(*SnapshotDelta)(nil),              // 10: proxy_pool.controlplane.v1.SnapshotDelta
+	(*SnapshotCredential)(nil),         // 10: proxy_pool.controlplane.v1.SnapshotCredential
-	(*RoutingRule)(nil),                // 11: proxy_pool.controlplane.v1.RoutingRule
+	(*SnapshotDelta)(nil),              // 11: proxy_pool.controlplane.v1.SnapshotDelta
-	(*RoutingStrategy)(nil),            // 12: proxy_pool.controlplane.v1.RoutingStrategy
+	(*RoutingRule)(nil),                // 12: proxy_pool.controlplane.v1.RoutingRule
-	(*OwnedProxy)(nil),                 // 13: proxy_pool.controlplane.v1.OwnedProxy
+	(*RoutingStrategy)(nil),            // 13: proxy_pool.controlplane.v1.RoutingStrategy
-	(*AcknowledgeSnapshotRequest)(nil), // 14: proxy_pool.controlplane.v1.AcknowledgeSnapshotRequest
+	(*OwnedProxy)(nil),                 // 14: proxy_pool.controlplane.v1.OwnedProxy
-	(*OutcomeBatch)(nil),               // 15: proxy_pool.controlplane.v1.OutcomeBatch
+	(*AcknowledgeSnapshotRequest)(nil), // 15: proxy_pool.controlplane.v1.AcknowledgeSnapshotRequest
-	(*ProxyOutcome)(nil),               // 16: proxy_pool.controlplane.v1.ProxyOutcome
+	(*OutcomeBatch)(nil),               // 16: proxy_pool.controlplane.v1.OutcomeBatch
-	(*ReportOutcomesResponse)(nil),     // 17: proxy_pool.controlplane.v1.ReportOutcomesResponse
+	(*ProxyOutcome)(nil),               // 17: proxy_pool.controlplane.v1.ProxyOutcome
-	(*ReportRuntimeRequest)(nil),       // 18: proxy_pool.controlplane.v1.ReportRuntimeRequest
+	(*ReportOutcomesResponse)(nil),     // 18: proxy_pool.controlplane.v1.ReportOutcomesResponse
-	(*ProxyRuntime)(nil),               // 19: proxy_pool.controlplane.v1.ProxyRuntime
+	(*ReportRuntimeRequest)(nil),       // 19: proxy_pool.controlplane.v1.ReportRuntimeRequest
-	(*ReportRuntimeResponse)(nil),      // 20: proxy_pool.controlplane.v1.ReportRuntimeResponse
+	(*ProxyRuntime)(nil),               // 20: proxy_pool.controlplane.v1.ProxyRuntime
-	(*StreamCheckTasksRequest)(nil),    // 21: proxy_pool.controlplane.v1.StreamCheckTasksRequest
+	(*ReportRuntimeResponse)(nil),      // 21: proxy_pool.controlplane.v1.ReportRuntimeResponse
-	(*CheckTask)(nil),                  // 22: proxy_pool.controlplane.v1.CheckTask
+	(*StreamCheckTasksRequest)(nil),    // 22: proxy_pool.controlplane.v1.StreamCheckTasksRequest
-	(*ObservationBatch)(nil),           // 23: proxy_pool.controlplane.v1.ObservationBatch
+	(*CheckTask)(nil),                  // 23: proxy_pool.controlplane.v1.CheckTask
-	(*HealthObservation)(nil),          // 24: proxy_pool.controlplane.v1.HealthObservation
+	(*ObservationBatch)(nil),           // 24: proxy_pool.controlplane.v1.ObservationBatch
-	(*ReportObservationsResponse)(nil), // 25: proxy_pool.controlplane.v1.ReportObservationsResponse
+	(*HealthObservation)(nil),          // 25: proxy_pool.controlplane.v1.HealthObservation
-	nil,                                // 26: proxy_pool.controlplane.v1.RegisterWorkerRequest.LabelsEntry
+	(*ReportObservationsResponse)(nil), // 26: proxy_pool.controlplane.v1.ReportObservationsResponse
-	nil,                                // 27: proxy_pool.controlplane.v1.RoutingRule.HeadersEntry
+	nil,                                // 27: proxy_pool.controlplane.v1.RegisterWorkerRequest.LabelsEntry
-	nil,                                // 28: proxy_pool.controlplane.v1.RoutingStrategy.WeightsEntry
+	nil,                                // 28: proxy_pool.controlplane.v1.RoutingRule.HeadersEntry
-	nil,                                // 29: proxy_pool.controlplane.v1.OwnedProxy.TagsEntry
+	nil,                                // 29: proxy_pool.controlplane.v1.RoutingStrategy.WeightsEntry
-	(*durationpb.Duration)(nil),        // 30: google.protobuf.Duration
+	nil,                                // 30: proxy_pool.controlplane.v1.OwnedProxy.TagsEntry
-	(*timestamppb.Timestamp)(nil),      // 31: google.protobuf.Timestamp
+	(*durationpb.Duration)(nil),        // 31: google.protobuf.Duration
-	(*emptypb.Empty)(nil),              // 32: google.protobuf.Empty
+	(*timestamppb.Timestamp)(nil),      // 32: google.protobuf.Timestamp
+	(*emptypb.Empty)(nil),              // 33: google.protobuf.Empty
 }
 var file_controlplane_v1_controlplane_proto_depIdxs = []int32{
-	26, // 0: proxy_pool.controlplane.v1.RegisterWorkerRequest.labels:type_name -> proxy_pool.controlplane.v1.RegisterWorkerRequest.LabelsEntry
+	27, // 0: proxy_pool.controlplane.v1.RegisterWorkerRequest.labels:type_name -> proxy_pool.controlplane.v1.RegisterWorkerRequest.LabelsEntry
-	30, // 1: proxy_pool.controlplane.v1.RegisterWorkerResponse.heartbeat_interval:type_name -> google.protobuf.Duration
+	31, // 1: proxy_pool.controlplane.v1.RegisterWorkerResponse.heartbeat_interval:type_name -> google.protobuf.Duration
-	30, // 2: proxy_pool.controlplane.v1.RegisterWorkerResponse.max_stale_age:type_name -> google.protobuf.Duration
+	31, // 2: proxy_pool.controlplane.v1.RegisterWorkerResponse.max_stale_age:type_name -> google.protobuf.Duration
 	9,  // 3: proxy_pool.controlplane.v1.SnapshotEnvelope.full:type_name -> proxy_pool.controlplane.v1.WorkerSnapshot
-	10, // 4: proxy_pool.controlplane.v1.SnapshotEnvelope.delta:type_name -> proxy_pool.controlplane.v1.SnapshotDelta
+	11, // 4: proxy_pool.controlplane.v1.SnapshotEnvelope.delta:type_name -> proxy_pool.controlplane.v1.SnapshotDelta
-	31, // 5: proxy_pool.controlplane.v1.WorkerSnapshot.generated_at:type_name -> google.protobuf.Timestamp
+	32, // 5: proxy_pool.controlplane.v1.WorkerSnapshot.generated_at:type_name -> google.protobuf.Timestamp
-	31, // 6: proxy_pool.controlplane.v1.WorkerSnapshot.valid_until:type_name -> google.protobuf.Timestamp
+	32, // 6: proxy_pool.controlplane.v1.WorkerSnapshot.valid_until:type_name -> google.protobuf.Timestamp
-	11, // 7: proxy_pool.controlplane.v1.WorkerSnapshot.routing:type_name -> proxy_pool.controlplane.v1.RoutingRule
+	12, // 7: proxy_pool.controlplane.v1.WorkerSnapshot.routing:type_name -> proxy_pool.controlplane.v1.RoutingRule
-	13, // 8: proxy_pool.controlplane.v1.WorkerSnapshot.proxies:type_name -> proxy_pool.controlplane.v1.OwnedProxy
+	14, // 8: proxy_pool.controlplane.v1.WorkerSnapshot.proxies:type_name -> proxy_pool.controlplane.v1.OwnedProxy
-	31, // 9: proxy_pool.controlplane.v1.SnapshotDelta.generated_at:type_name -> google.protobuf.Timestamp
+	10, // 9: proxy_pool.controlplane.v1.WorkerSnapshot.credentials:type_name -> proxy_pool.controlplane.v1.SnapshotCredential
-	11, // 10: proxy_pool.controlplane.v1.SnapshotDelta.upserted_routing:type_name -> proxy_pool.controlplane.v1.RoutingRule
+	32, // 10: proxy_pool.controlplane.v1.SnapshotDelta.generated_at:type_name -> google.protobuf.Timestamp
-	13, // 11: proxy_pool.controlplane.v1.SnapshotDelta.upserted_proxies:type_name -> proxy_pool.controlplane.v1.OwnedProxy
+	12, // 11: proxy_pool.controlplane.v1.SnapshotDelta.upserted_routing:type_name -> proxy_pool.controlplane.v1.RoutingRule
-	27, // 12: proxy_pool.controlplane.v1.RoutingRule.headers:type_name -> proxy_pool.controlplane.v1.RoutingRule.HeadersEntry
+	14, // 12: proxy_pool.controlplane.v1.SnapshotDelta.upserted_proxies:type_name -> proxy_pool.controlplane.v1.OwnedProxy
-	12, // 13: proxy_pool.controlplane.v1.RoutingRule.strategy:type_name -> proxy_pool.controlplane.v1.RoutingStrategy
+	28, // 13: proxy_pool.controlplane.v1.RoutingRule.headers:type_name -> proxy_pool.controlplane.v1.RoutingRule.HeadersEntry
-	1,  // 14: proxy_pool.controlplane.v1.RoutingRule.on_unavailable:type_name -> proxy_pool.controlplane.v1.UnavailableAction
+	13, // 14: proxy_pool.controlplane.v1.RoutingRule.strategy:type_name -> proxy_pool.controlplane.v1.RoutingStrategy
-	30, // 15: proxy_pool.controlplane.v1.RoutingRule.wait_timeout:type_name -> google.protobuf.Duration
+	1,  // 15: proxy_pool.controlplane.v1.RoutingRule.on_unavailable:type_name -> proxy_pool.controlplane.v1.UnavailableAction
-	0,  // 16: proxy_pool.controlplane.v1.RoutingStrategy.type:type_name -> proxy_pool.controlplane.v1.StrategyType
+	31, // 16: proxy_pool.controlplane.v1.RoutingRule.wait_timeout:type_name -> google.protobuf.Duration
-	28, // 17: proxy_pool.controlplane.v1.RoutingStrategy.weights:type_name -> proxy_pool.controlplane.v1.RoutingStrategy.WeightsEntry
+	0,  // 17: proxy_pool.controlplane.v1.RoutingStrategy.type:type_name -> proxy_pool.controlplane.v1.StrategyType
-	2,  // 18: proxy_pool.controlplane.v1.OwnedProxy.protocol:type_name -> proxy_pool.controlplane.v1.ProxyProtocol
+	29, // 18: proxy_pool.controlplane.v1.RoutingStrategy.weights:type_name -> proxy_pool.controlplane.v1.RoutingStrategy.WeightsEntry
-	31, // 19: proxy_pool.controlplane.v1.OwnedProxy.expires_at:type_name -> google.protobuf.Timestamp
+	2,  // 19: proxy_pool.controlplane.v1.OwnedProxy.protocol:type_name -> proxy_pool.controlplane.v1.ProxyProtocol
-	29, // 20: proxy_pool.controlplane.v1.OwnedProxy.tags:type_name -> proxy_pool.controlplane.v1.OwnedProxy.TagsEntry
+	32, // 20: proxy_pool.controlplane.v1.OwnedProxy.expires_at:type_name -> google.protobuf.Timestamp
-	31, // 21: proxy_pool.controlplane.v1.OwnedProxy.usable_until:type_name -> google.protobuf.Timestamp
+	30, // 21: proxy_pool.controlplane.v1.OwnedProxy.tags:type_name -> proxy_pool.controlplane.v1.OwnedProxy.TagsEntry
-	16, // 22: proxy_pool.controlplane.v1.OutcomeBatch.outcomes:type_name -> proxy_pool.controlplane.v1.ProxyOutcome
+	32, // 22: proxy_pool.controlplane.v1.OwnedProxy.usable_until:type_name -> google.protobuf.Timestamp
-	3,  // 23: proxy_pool.controlplane.v1.ProxyOutcome.stage:type_name -> proxy_pool.controlplane.v1.OutcomeStage
+	17, // 23: proxy_pool.controlplane.v1.OutcomeBatch.outcomes:type_name -> proxy_pool.controlplane.v1.ProxyOutcome
-	30, // 24: proxy_pool.controlplane.v1.ProxyOutcome.latency:type_name -> google.protobuf.Duration
+	3,  // 24: proxy_pool.controlplane.v1.ProxyOutcome.stage:type_name -> proxy_pool.controlplane.v1.OutcomeStage
-	31, // 25: proxy_pool.controlplane.v1.ProxyOutcome.observed_at:type_name -> google.protobuf.Timestamp
+	31, // 25: proxy_pool.controlplane.v1.ProxyOutcome.latency:type_name -> google.protobuf.Duration
-	19, // 26: proxy_pool.controlplane.v1.ReportRuntimeRequest.counters:type_name -> proxy_pool.controlplane.v1.ProxyRuntime
+	32, // 26: proxy_pool.controlplane.v1.ProxyOutcome.observed_at:type_name -> google.protobuf.Timestamp
-	31, // 27: proxy_pool.controlplane.v1.ReportRuntimeRequest.observed_at:type_name -> google.protobuf.Timestamp
+	20, // 27: proxy_pool.controlplane.v1.ReportRuntimeRequest.counters:type_name -> proxy_pool.controlplane.v1.ProxyRuntime
-	4,  // 28: proxy_pool.controlplane.v1.StreamCheckTasksRequest.supported_levels:type_name -> proxy_pool.controlplane.v1.CheckLevel
+	32, // 28: proxy_pool.controlplane.v1.ReportRuntimeRequest.observed_at:type_name -> google.protobuf.Timestamp
-	2,  // 29: proxy_pool.controlplane.v1.CheckTask.protocol:type_name -> proxy_pool.controlplane.v1.ProxyProtocol
+	4,  // 29: proxy_pool.controlplane.v1.StreamCheckTasksRequest.supported_levels:type_name -> proxy_pool.controlplane.v1.CheckLevel
-	4,  // 30: proxy_pool.controlplane.v1.CheckTask.level:type_name -> proxy_pool.controlplane.v1.CheckLevel
+	2,  // 30: proxy_pool.controlplane.v1.CheckTask.protocol:type_name -> proxy_pool.controlplane.v1.ProxyProtocol
-	30, // 31: proxy_pool.controlplane.v1.CheckTask.timeout:type_name -> google.protobuf.Duration
+	4,  // 31: proxy_pool.controlplane.v1.CheckTask.level:type_name -> proxy_pool.controlplane.v1.CheckLevel
-	31, // 32: proxy_pool.controlplane.v1.CheckTask.deadline:type_name -> google.protobuf.Timestamp
+	31, // 32: proxy_pool.controlplane.v1.CheckTask.timeout:type_name -> google.protobuf.Duration
-	24, // 33: proxy_pool.controlplane.v1.ObservationBatch.observations:type_name -> proxy_pool.controlplane.v1.HealthObservation
+	32, // 33: proxy_pool.controlplane.v1.CheckTask.deadline:type_name -> google.protobuf.Timestamp
-	4,  // 34: proxy_pool.controlplane.v1.HealthObservation.level:type_name -> proxy_pool.controlplane.v1.CheckLevel
+	25, // 34: proxy_pool.controlplane.v1.ObservationBatch.observations:type_name -> proxy_pool.controlplane.v1.HealthObservation
-	30, // 35: proxy_pool.controlplane.v1.HealthObservation.latency:type_name -> google.protobuf.Duration
+	4,  // 35: proxy_pool.controlplane.v1.HealthObservation.level:type_name -> proxy_pool.controlplane.v1.CheckLevel
-	31, // 36: proxy_pool.controlplane.v1.HealthObservation.observed_at:type_name -> google.protobuf.Timestamp
+	31, // 36: proxy_pool.controlplane.v1.HealthObservation.latency:type_name -> google.protobuf.Duration
-	5,  // 37: proxy_pool.controlplane.v1.WorkerControlPlane.RegisterWorker:input_type -> proxy_pool.controlplane.v1.RegisterWorkerRequest
+	32, // 37: proxy_pool.controlplane.v1.HealthObservation.observed_at:type_name -> google.protobuf.Timestamp
-	7,  // 38: proxy_pool.controlplane.v1.WorkerControlPlane.WatchSnapshots:input_type -> proxy_pool.controlplane.v1.WatchSnapshotsRequest
+	5,  // 38: proxy_pool.controlplane.v1.WorkerControlPlane.RegisterWorker:input_type -> proxy_pool.controlplane.v1.RegisterWorkerRequest
-	14, // 39: proxy_pool.controlplane.v1.WorkerControlPlane.AcknowledgeSnapshot:input_type -> proxy_pool.controlplane.v1.AcknowledgeSnapshotRequest
+	7,  // 39: proxy_pool.controlplane.v1.WorkerControlPlane.WatchSnapshots:input_type -> proxy_pool.controlplane.v1.WatchSnapshotsRequest
-	15, // 40: proxy_pool.controlplane.v1.WorkerControlPlane.ReportOutcomes:input_type -> proxy_pool.controlplane.v1.OutcomeBatch
+	15, // 40: proxy_pool.controlplane.v1.WorkerControlPlane.AcknowledgeSnapshot:input_type -> proxy_pool.controlplane.v1.AcknowledgeSnapshotRequest
-	18, // 41: proxy_pool.controlplane.v1.WorkerControlPlane.ReportRuntime:input_type -> proxy_pool.controlplane.v1.ReportRuntimeRequest
+	16, // 41: proxy_pool.controlplane.v1.WorkerControlPlane.ReportOutcomes:input_type -> proxy_pool.controlplane.v1.OutcomeBatch
-	21, // 42: proxy_pool.controlplane.v1.CheckerControlPlane.StreamCheckTasks:input_type -> proxy_pool.controlplane.v1.StreamCheckTasksRequest
+	19, // 42: proxy_pool.controlplane.v1.WorkerControlPlane.ReportRuntime:input_type -> proxy_pool.controlplane.v1.ReportRuntimeRequest
-	23, // 43: proxy_pool.controlplane.v1.CheckerControlPlane.ReportObservations:input_type -> proxy_pool.controlplane.v1.ObservationBatch
+	22, // 43: proxy_pool.controlplane.v1.CheckerControlPlane.StreamCheckTasks:input_type -> proxy_pool.controlplane.v1.StreamCheckTasksRequest
-	6,  // 44: proxy_pool.controlplane.v1.WorkerControlPlane.RegisterWorker:output_type -> proxy_pool.controlplane.v1.RegisterWorkerResponse
+	24, // 44: proxy_pool.controlplane.v1.CheckerControlPlane.ReportObservations:input_type -> proxy_pool.controlplane.v1.ObservationBatch
-	8,  // 45: proxy_pool.controlplane.v1.WorkerControlPlane.WatchSnapshots:output_type -> proxy_pool.controlplane.v1.SnapshotEnvelope
+	6,  // 45: proxy_pool.controlplane.v1.WorkerControlPlane.RegisterWorker:output_type -> proxy_pool.controlplane.v1.RegisterWorkerResponse
-	32, // 46: proxy_pool.controlplane.v1.WorkerControlPlane.AcknowledgeSnapshot:output_type -> google.protobuf.Empty
+	8,  // 46: proxy_pool.controlplane.v1.WorkerControlPlane.WatchSnapshots:output_type -> proxy_pool.controlplane.v1.SnapshotEnvelope
-	17, // 47: proxy_pool.controlplane.v1.WorkerControlPlane.ReportOutcomes:output_type -> proxy_pool.controlplane.v1.ReportOutcomesResponse
+	33, // 47: proxy_pool.controlplane.v1.WorkerControlPlane.AcknowledgeSnapshot:output_type -> google.protobuf.Empty
-	20, // 48: proxy_pool.controlplane.v1.WorkerControlPlane.ReportRuntime:output_type -> proxy_pool.controlplane.v1.ReportRuntimeResponse
+	18, // 48: proxy_pool.controlplane.v1.WorkerControlPlane.ReportOutcomes:output_type -> proxy_pool.controlplane.v1.ReportOutcomesResponse
-	22, // 49: proxy_pool.controlplane.v1.CheckerControlPlane.StreamCheckTasks:output_type -> proxy_pool.controlplane.v1.CheckTask
+	21, // 49: proxy_pool.controlplane.v1.WorkerControlPlane.ReportRuntime:output_type -> proxy_pool.controlplane.v1.ReportRuntimeResponse
-	25, // 50: proxy_pool.controlplane.v1.CheckerControlPlane.ReportObservations:output_type -> proxy_pool.controlplane.v1.ReportObservationsResponse
+	23, // 50: proxy_pool.controlplane.v1.CheckerControlPlane.StreamCheckTasks:output_type -> proxy_pool.controlplane.v1.CheckTask
-	44, // [44:51] is the sub-list for method output_type
+	26, // 51: proxy_pool.controlplane.v1.CheckerControlPlane.ReportObservations:output_type -> proxy_pool.controlplane.v1.ReportObservationsResponse
-	37, // [37:44] is the sub-list for method input_type
+	45, // [45:52] is the sub-list for method output_type
-	37, // [37:37] is the sub-list for extension type_name
+	38, // [38:45] is the sub-list for method input_type
-	37, // [37:37] is the sub-list for extension extendee
+	38, // [38:38] is the sub-list for extension type_name
-	0,  // [0:37] is the sub-list for field type_name
+	38, // [38:38] is the sub-list for extension extendee
+	0,  // [0:38] is the sub-list for field type_name
 }
 
 func init() { file_controlplane_v1_controlplane_proto_init() }
@@ -2405,7 +2492,7 @@ func file_controlplane_v1_controlplane_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: unsafe.Slice(unsafe.StringData(file_controlplane_v1_controlplane_proto_rawDesc), len(file_controlplane_v1_controlplane_proto_rawDesc)),
 			NumEnums:      5,
-			NumMessages:   25,
+			NumMessages:   26,
 			NumExtensions: 0,
 			NumServices:   2,
 		},

internal/config/config.go

@@ -139,6 +139,7 @@ type ControlPlane struct {
 	MaxRuntimeCounters   int             `yaml:"maxRuntimeCounters"`
 	MaxConcurrentStreams uint32          `yaml:"maxConcurrentStreams"`
 	TLS                  ControlPlaneTLS `yaml:"tls"`
+	GatewayTLS           GatewayTLS      `yaml:"gatewayTLS"`
 }
 
 type ControlPlaneTLS struct {
@@ -150,6 +151,14 @@ type ControlPlaneTLS struct {
 	Environment  string `yaml:"environment"`
 }
 
+// GatewayTLS holds client-only mTLS material. It remains separate from the
+// Controller's server certificate and CA configuration.
+type GatewayTLS struct {
+	CertFile     string `yaml:"certFile"`
+	KeyFile      string `yaml:"keyFile"`
+	ServerCAFile string `yaml:"serverCAFile"`
+}
+
 type Storage struct {
 	PostgresURL string `yaml:"postgresURL"`
 	RedisURL    string `yaml:"redisURL"`

internal/config/config_test.go

@@ -454,6 +454,14 @@ func TestValidateControlPlane(t *testing.T) {
 			},
 			want: "environment",
 		},
+		{
+			name: "partial gateway tls",
+			mutate: func(cfg *Config) {
+				cfg.ControlPlane = validMTLSControlPlane()
+				cfg.ControlPlane.GatewayTLS.CertFile = "/run/secrets/gateway-cert.pem"
+			},
+			want: "gatewayTLS",
+		},
 	}
 
 	for _, test := range tests {

internal/config/validate.go

@@ -110,6 +110,9 @@ func Validate(cfg *Config) error {
 }
 
 func validateControlPlane(item ControlPlane) error {
+	if err := validateGatewayTLS(item.GatewayTLS); err != nil {
+		return err
+	}
 	if !item.Enabled {
 		return nil
 	}
@@ -161,6 +164,17 @@ func validateControlPlane(item ControlPlane) error {
 	return nil
 }
 
+func validateGatewayTLS(item GatewayTLS) error {
+	configured := item.CertFile != "" || item.KeyFile != "" || item.ServerCAFile != ""
+	if !configured {
+		return nil
+	}
+	if item.CertFile == "" || item.KeyFile == "" || item.ServerCAFile == "" {
+		return fmt.Errorf("validate controlPlane gatewayTLS: certFile, keyFile and serverCAFile are required together")
+	}
+	return nil
+}
+
 func validTrustDomain(value string) bool {
 	if len(value) == 0 || len(value) > 253 {
 		return false

internal/controller/bootstrap/bootstrap.go

@@ -257,6 +257,7 @@ func runWithWorkerFactory(
 			MaxSnapshotBytes:   loaded.Value.ControlPlane.MaxMessageBytes,
 			SnapshotReader:     snapshotReader,
 			RoutingSource:      routingSource,
+			Credentials:        opened.credentials,
 		})
 		if serviceErr != nil {
 			return fmt.Errorf("%w: build Worker control service: %w", ErrStartup, serviceErr)

internal/controller/worker/owned_snapshot_source.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"math"
+	"sort"
 	"time"
 
 	controlplanev1 "proxy-pool/gen/controlplane/v1"
@@ -11,6 +12,7 @@ import (
 	ownershipDomain "proxy-pool/internal/domain/ownership"
 	proxyDomain "proxy-pool/internal/domain/proxy"
 	"proxy-pool/internal/domain/workerruntime"
+	platformCredentials "proxy-pool/internal/platform/credentials"
 
 	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/known/timestamppb"
@@ -28,6 +30,11 @@ type OwnedSnapshotSource struct {
 	maxBytes    int
 	now         func() time.Time
 	routing     RoutingSource
+	credentials CredentialReader
+}
+
+type CredentialReader interface {
+	Resolve(context.Context, platformCredentials.Reference) (platformCredentials.Value, error)
 }
 
 func NewOwnedSnapshotSource(
@@ -38,6 +45,35 @@ func NewOwnedSnapshotSource(
 	maxBytes int,
 	now func() time.Time,
 	routing ...RoutingSource,
+) (*OwnedSnapshotSource, error) {
+	return newOwnedSnapshotSource(epochs, reader, validFor, maxProxies, maxBytes, now, nil, routing...)
+}
+
+func NewOwnedSnapshotSourceWithCredentials(
+	epochs OwnershipEpochReader,
+	reader ownershipDomain.SnapshotReader,
+	validFor time.Duration,
+	maxProxies int,
+	maxBytes int,
+	now func() time.Time,
+	credentials CredentialReader,
+	routing ...RoutingSource,
+) (*OwnedSnapshotSource, error) {
+	if credentials == nil {
+		return nil, ErrSnapshotsUnavailable
+	}
+	return newOwnedSnapshotSource(epochs, reader, validFor, maxProxies, maxBytes, now, credentials, routing...)
+}
+
+func newOwnedSnapshotSource(
+	epochs OwnershipEpochReader,
+	reader ownershipDomain.SnapshotReader,
+	validFor time.Duration,
+	maxProxies int,
+	maxBytes int,
+	now func() time.Time,
+	credentials CredentialReader,
+	routing ...RoutingSource,
 ) (*OwnedSnapshotSource, error) {
 	if epochs == nil || reader == nil || validFor <= 0 || maxProxies <= 0 || maxBytes <= 0 || now == nil || len(routing) > 1 ||
 		len(routing) == 1 && routing[0] == nil {
@@ -45,6 +81,7 @@ func NewOwnedSnapshotSource(
 	}
 	source := &OwnedSnapshotSource{
 		epochs: epochs, reader: reader, validFor: validFor, maxProxies: maxProxies, maxBytes: maxBytes, now: now,
+		credentials: credentials,
 	}
 	if len(routing) == 1 {
 		source.routing = routing[0]
@@ -77,6 +114,7 @@ func (source *OwnedSnapshotSource) Watch(ctx context.Context, request SnapshotWa
 		GeneratedAt: timestamppb.New(now), ValidUntil: timestamppb.New(now.Add(source.validFor)),
 		Proxies: make([]*controlplanev1.OwnedProxy, 0, len(proxies)),
 	}
+	materials := make(map[platformCredentials.Reference]platformCredentials.Value)
 	for _, item := range proxies {
 		owned, validUntil, err := wireOwnedProxy(item, now)
 		if err != nil {
@@ -86,7 +124,26 @@ func (source *OwnedSnapshotSource) Watch(ctx context.Context, request SnapshotWa
 			full.ValidUntil = timestamppb.New(validUntil)
 		}
 		full.Proxies = append(full.Proxies, owned)
+		if owned.GetSecretRef() != "" {
+			reference := platformCredentials.Reference{SecretRef: owned.GetSecretRef(), CredentialVersion: owned.GetCredentialVersion()}
+			if source.credentials == nil {
+				return nil, ErrSnapshotCredentialsUnavailable
 			}
+			material, resolveErr := source.credentials.Resolve(ctx, reference)
+			if resolveErr != nil || (material.Username == "" && material.Password == "") ||
+				(owned.GetUsername() != "" && material.Username != "" && material.Username != owned.GetUsername()) {
+				return nil, ErrSnapshotCredentialsUnavailable
+			}
+			if material.Username == "" {
+				material.Username = owned.GetUsername()
+			}
+			if existing, exists := materials[reference]; exists && existing != material {
+				return nil, ErrSnapshotCredentialsUnavailable
+			}
+			materials[reference] = material
+		}
+	}
+	full.Credentials = wireSnapshotCredentials(materials)
 	if source.routing != nil {
 		routing, err := source.routing.Read(ctx)
 		if err != nil {
@@ -107,6 +164,23 @@ func (source *OwnedSnapshotSource) Watch(ctx context.Context, request SnapshotWa
 	return updates, nil
 }
 
+func wireSnapshotCredentials(materials map[platformCredentials.Reference]platformCredentials.Value) []*controlplanev1.SnapshotCredential {
+	result := make([]*controlplanev1.SnapshotCredential, 0, len(materials))
+	for reference, material := range materials {
+		result = append(result, &controlplanev1.SnapshotCredential{
+			SecretRef: reference.SecretRef, CredentialVersion: reference.CredentialVersion,
+			Username: material.Username, Password: material.Password,
+		})
+	}
+	sort.Slice(result, func(left, right int) bool {
+		if result[left].GetSecretRef() == result[right].GetSecretRef() {
+			return result[left].GetCredentialVersion() < result[right].GetCredentialVersion()
+		}
+		return result[left].GetSecretRef() < result[right].GetSecretRef()
+	})
+	return result
+}
+
 func cloneSnapshotRouting(source []*controlplanev1.RoutingRule) []*controlplanev1.RoutingRule {
 	result := make([]*controlplanev1.RoutingRule, len(source))
 	for index, rule := range source {
@@ -119,7 +193,7 @@ func cloneSnapshotRouting(source []*controlplanev1.RoutingRule) []*controlplanev
 
 func wireOwnedProxy(item ownershipDomain.SnapshotProxy, now time.Time) (*controlplanev1.OwnedProxy, time.Time, error) {
 	proxy := item.Proxy
-	if item.OwnershipEpoch == 0 || item.LeaseExpiresAt.IsZero() || proxy.CredentialVersion != "" || proxy.SecretRef != "" {
+	if item.OwnershipEpoch == 0 || item.LeaseExpiresAt.IsZero() || (proxy.CredentialVersion == "") != (proxy.SecretRef == "") {
 		if proxy.CredentialVersion != "" || proxy.SecretRef != "" {
 			return nil, time.Time{}, ErrSnapshotCredentialsUnavailable
 		}
@@ -144,7 +218,7 @@ func wireOwnedProxy(item ownershipDomain.SnapshotProxy, now time.Time) (*control
 	}
 	return &controlplanev1.OwnedProxy{
 		Id: proxy.ID, Upstream: proxy.SourceUpstream, Protocol: protocol, Host: proxy.Host, Port: uint32(proxy.Port),
-		Username: proxy.Username, ExpiresAt: timestamppb.New(proxy.ExpiresAt.UTC()),
+		Username: proxy.Username, CredentialVersion: proxy.CredentialVersion, SecretRef: proxy.SecretRef, ExpiresAt: timestamppb.New(proxy.ExpiresAt.UTC()),
 		MaxConcurrency: uint32(proxy.MaxConcurrency), Tags: tags, OwnershipEpoch: item.OwnershipEpoch,
 		UsableUntil: timestamppb.New(validUntil),
 	}, validUntil, nil

internal/controller/worker/service.go

@@ -10,6 +10,7 @@ import (
 
 	ownershipDomain "proxy-pool/internal/domain/ownership"
 	"proxy-pool/internal/domain/workerruntime"
+	platformCredentials "proxy-pool/internal/platform/credentials"
 )
 
 var (
@@ -59,6 +60,7 @@ type Options struct {
 	MaxSnapshotBytes   int
 	SnapshotReader     ownershipDomain.SnapshotReader
 	RoutingSource      RoutingSource
+	Credentials        platformCredentials.Store
 	SessionID          func() (string, error)
 }
 
@@ -136,9 +138,17 @@ func NewService(store workerruntime.ControlStore, options Options) (Service, err
 		if options.RoutingSource != nil {
 			routing = append(routing, options.RoutingSource)
 		}
-		source, err := NewOwnedSnapshotSource(
+		var source SnapshotSource
+		var err error
+		if options.Credentials != nil {
+			source, err = NewOwnedSnapshotSourceWithCredentials(
+				result, options.SnapshotReader, options.MaxStaleAge, options.MaxRuntimeCounters, options.MaxSnapshotBytes, time.Now, options.Credentials, routing...,
+			)
+		} else {
+			source, err = NewOwnedSnapshotSource(
 				result, options.SnapshotReader, options.MaxStaleAge, options.MaxRuntimeCounters, options.MaxSnapshotBytes, time.Now, routing...,
 			)
+		}
 		if err != nil {
 			return nil, errors.Join(ErrInvalidCommand, err)
 		}

internal/controller/worker/snapshot_source_test.go

@@ -10,6 +10,7 @@ import (
 	"proxy-pool/internal/controlplane/snapshotwire"
 	ownershipDomain "proxy-pool/internal/domain/ownership"
 	proxyDomain "proxy-pool/internal/domain/proxy"
+	platformCredentials "proxy-pool/internal/platform/credentials"
 )
 
 func TestInitialSnapshotSourceIssuesNextFullSnapshot(t *testing.T) {
@@ -123,6 +124,44 @@ func TestOwnedSnapshotSourceRejectsCredentialReferenceUntilMaterialIsAvailable(t
 	}
 }
 
+func TestOwnedSnapshotSourceIncludesReferencedCredentialMaterial(t *testing.T) {
+	now := time.Date(2026, 7, 31, 12, 0, 0, 0, time.UTC)
+	expiresAt := now.Add(time.Minute)
+	usableUntil := now.Add(30 * time.Second)
+	store, err := platformCredentials.NewMemoryStore(2)
+	if err != nil {
+		t.Fatalf("NewMemoryStore(): %v", err)
+	}
+	reference, err := store.Put(context.Background(), "provider-a", platformCredentials.Value{Username: "upstream", Password: "secret"})
+	if err != nil {
+		t.Fatalf("Put(): %v", err)
+	}
+	source, err := NewOwnedSnapshotSourceWithCredentials(epochReaderStub{epoch: 1}, snapshotReaderStub{proxies: []ownershipDomain.SnapshotProxy{{
+		Proxy: proxyDomain.Proxy{
+			ID: "proxy-a", Scheme: proxyDomain.SchemeHTTP, Host: "192.0.2.10", Port: 8080, SourceUpstream: "upstream-a",
+			Username: "upstream", SecretRef: reference.SecretRef, CredentialVersion: reference.CredentialVersion,
+			ExpiresAt: &expiresAt, UsableUntil: &usableUntil, MaxConcurrency: 1, State: proxyDomain.StateAvailable,
+		}, OwnershipEpoch: 1, LeaseExpiresAt: now.Add(time.Minute),
+	}}}, time.Minute, 10, 4096, func() time.Time { return now }, store)
+	if err != nil {
+		t.Fatalf("NewOwnedSnapshotSourceWithCredentials(): %v", err)
+	}
+	updates, err := source.Watch(context.Background(), SnapshotWatchRequest{WorkerID: "worker-a", SessionID: "session-a"})
+	if err != nil {
+		t.Fatalf("Watch(): %v", err)
+	}
+	full := <-updates
+	if len(full.GetCredentials()) != 1 || full.GetCredentials()[0].GetSecretRef() != reference.SecretRef ||
+		full.GetCredentials()[0].GetUsername() != "upstream" || full.GetCredentials()[0].GetPassword() != "secret" ||
+		full.GetProxies()[0].GetCredentialVersion() != reference.CredentialVersion {
+		t.Fatal("snapshot credential material or proxy credential reference is invalid")
+	}
+	checksum, err := snapshotwire.Checksum(full)
+	if err != nil || string(checksum[:]) != string(full.GetChecksum()) {
+		t.Fatalf("snapshot checksum = %x, %v; want %x", full.GetChecksum(), err, checksum)
+	}
+}
+
 type epochReaderStub struct {
 	epoch uint64
 	err   error

internal/gateway/bootstrap/bootstrap.go

@@ -0,0 +1,465 @@
+// Package bootstrap assembles the proxy-gateway process from data-plane
+// components without putting Controller or storage access on the request path.
+package bootstrap
+
+import (
+	"bytes"
+	"context"
+	"crypto/tls"
+	"crypto/x509"
+	"errors"
+	"fmt"
+	"net"
+	"os"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
+
+	controlplanev1 "proxy-pool/gen/controlplane/v1"
+	"proxy-pool/internal/config"
+	proxyDomain "proxy-pool/internal/domain/proxy"
+	"proxy-pool/internal/domain/workerruntime"
+	"proxy-pool/internal/gateway/controlplane"
+	"proxy-pool/internal/gateway/dispatch"
+	"proxy-pool/internal/gateway/server"
+	"proxy-pool/internal/gateway/snapshot"
+	"proxy-pool/internal/gateway/transport"
+	"proxy-pool/internal/platform/httpserver"
+	"proxy-pool/internal/platform/lifecycle"
+	platformMetrics "proxy-pool/internal/platform/metrics"
+)
+
+var (
+	ErrInvalidOptions = errors.New("invalid gateway bootstrap options")
+	ErrStartup        = errors.New("gateway startup failed")
+	ErrNotReady       = errors.New("gateway snapshot is not ready")
+)
+
+const (
+	defaultReconnectInitialDelay = time.Second
+	defaultReconnectMaxDelay     = 30 * time.Second
+	defaultReconnectJitter       = 20
+)
+
+// Options provides process-local settings. ControlPlaneAddress is deliberately
+// independent from controlPlane.listen: the latter is the Controller bind
+// address, while this value is the Gateway's remote dial target.
+type Options struct {
+	ConfigPath          string
+	Resolver            config.Resolver
+	ControlPlaneAddress string
+	ClusterID           string
+	WorkerID            string
+	InstanceID          string
+	Zone                string
+	Labels              map[string]string
+	HTTP                httpserver.Options
+
+	// The pre-bound listeners and transport are test seams. Production leaves
+	// them nil and derives listeners and mTLS credentials from configuration.
+	GatewayListener net.Listener
+	MetricsListener net.Listener
+	GRPCTransport   credentials.TransportCredentials
+
+	ReconnectInitialDelay time.Duration
+	ReconnectMaxDelay     time.Duration
+	ReconnectJitter       int
+}
+
+func Run(ctx context.Context, options Options) error {
+	if err := validateOptions(ctx, options); err != nil {
+		return err
+	}
+	configuration, err := loadConfiguration(ctx, options.ConfigPath, options.Resolver)
+	if err != nil {
+		return fmt.Errorf("%w: load configuration: %w", ErrStartup, err)
+	}
+	if !configuration.Gateway.Enabled || !configuration.ControlPlane.Enabled {
+		return errors.Join(ErrInvalidOptions, errors.New("gateway and controlPlane must be enabled"))
+	}
+
+	runtime, err := newRuntime(ctx, configuration, options)
+	if err != nil {
+		return fmt.Errorf("%w: %w", ErrStartup, err)
+	}
+	defer runtime.Close()
+	return runtime.Run(ctx)
+}
+
+func validateOptions(ctx context.Context, options Options) error {
+	if ctx == nil || strings.TrimSpace(options.ConfigPath) != options.ConfigPath || options.ConfigPath == "" ||
+		nilInterface(options.Resolver) || !workerruntime.ValidIdentifier(options.ClusterID) || !workerruntime.ValidIdentifier(options.WorkerID) ||
+		!workerruntime.ValidIdentifier(options.InstanceID) || !workerruntime.ValidIdentifier(options.Zone) || !validDialAddress(options.ControlPlaneAddress) {
+		return ErrInvalidOptions
+	}
+	if options.GatewayListener == nil && options.MetricsListener != nil {
+		return ErrInvalidOptions
+	}
+	if options.ReconnectInitialDelay < 0 || options.ReconnectMaxDelay < 0 || options.ReconnectJitter < 0 || options.ReconnectJitter > 100 {
+		return ErrInvalidOptions
+	}
+	return nil
+}
+
+func loadConfiguration(ctx context.Context, path string, resolver config.Resolver) (*config.Config, error) {
+	if ctx == nil || strings.TrimSpace(path) != path || path == "" || nilInterface(resolver) {
+		return nil, ErrInvalidOptions
+	}
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
+	content, err := resolver.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("read configuration %q: %w", path, err)
+	}
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
+	configuration, err := config.LoadResolved(bytes.NewReader(content), resolver)
+	if err != nil {
+		return nil, fmt.Errorf("decode configuration %q: %w", path, err)
+	}
+	return configuration, nil
+}
+
+type runtime struct {
+	connection *grpc.ClientConn
+	group      *lifecycle.Group
+}
+
+func newRuntime(ctx context.Context, configuration *config.Config, options Options) (*runtime, error) {
+	if ctx == nil || configuration == nil {
+		return nil, ErrInvalidOptions
+	}
+	store := snapshot.NewStore(options.ClusterID, options.WorkerID)
+	protection, err := server.BuildProtection(configuration.Gateway)
+	if err != nil {
+		return nil, fmt.Errorf("build gateway protections: %w", err)
+	}
+	targets, err := server.TargetPolicyFromListener(configuration.Gateway)
+	if err != nil {
+		return nil, fmt.Errorf("build gateway target policy: %w", err)
+	}
+	proxyTransport := transport.New(transport.Config{}, snapshotCredentialResolver{store: store})
+	handler, err := server.New(server.ConfigFromListener(configuration.Gateway), server.Dependencies{
+		Auth:       protection.Auth,
+		Access:     protection.Access,
+		Admission:  protection.Admission,
+		Targets:    targets,
+		Router:     server.NewSnapshotRouter(store),
+		Dispatcher: dispatch.New(store),
+		Transport:  proxyTransport,
+	})
+	if err != nil {
+		proxyTransport.CloseIdleConnections()
+		return nil, fmt.Errorf("build gateway handler: %w", err)
+	}
+
+	transportCredentials, err := controlPlaneTransport(configuration.ControlPlane, options.ControlPlaneAddress, options.GRPCTransport)
+	if err != nil {
+		proxyTransport.CloseIdleConnections()
+		return nil, err
+	}
+	connection, err := grpc.NewClient(options.ControlPlaneAddress,
+		grpc.WithTransportCredentials(transportCredentials),
+		grpc.WithDefaultCallOptions(
+			grpc.MaxCallRecvMsgSize(configuration.ControlPlane.MaxMessageBytes),
+			grpc.MaxCallSendMsgSize(configuration.ControlPlane.MaxMessageBytes),
+		),
+	)
+	if err != nil {
+		proxyTransport.CloseIdleConnections()
+		return nil, fmt.Errorf("dial control plane: %w", err)
+	}
+
+	closeConnection := true
+	defer func() {
+		if closeConnection {
+			_ = connection.Close()
+			proxyTransport.CloseIdleConnections()
+		}
+	}()
+	client := controlplanev1.NewWorkerControlPlaneClient(connection)
+	reporter, err := controlplane.NewRuntimeReporter(generatedRuntimeClient{client: client}, store, controlplane.Options{
+		WorkerID: options.WorkerID, InstanceID: options.InstanceID, Zone: options.Zone,
+		ProtocolVersion: configuration.ControlPlane.ProtocolVersion, Labels: options.Labels, Now: time.Now,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("build runtime reporter: %w", err)
+	}
+	watcher, err := controlplane.NewSnapshotWatcher(controlplane.NewGeneratedSnapshotRPCClient(client), store,
+		controlplane.SnapshotWatcherOptions{ClusterID: options.ClusterID, WorkerID: options.WorkerID})
+	if err != nil {
+		return nil, fmt.Errorf("build snapshot watcher: %w", err)
+	}
+	session, err := controlplane.NewSessionRunner(reporter, watcher)
+	if err != nil {
+		return nil, fmt.Errorf("build control plane session: %w", err)
+	}
+	reconnect, err := controlplane.NewSessionSupervisor(session, reconnectOptions(options))
+	if err != nil {
+		return nil, fmt.Errorf("build control plane reconnect supervisor: %w", err)
+	}
+
+	httpRuntime, err := newHTTPRuntime(ctx, configuration, options, handler, store)
+	if err != nil {
+		return nil, err
+	}
+	group, err := lifecycle.NewGroup(httpRuntime, reconnect)
+	if err != nil {
+		return nil, err
+	}
+	closeConnection = false
+	return &runtime{connection: connection, group: group}, nil
+}
+
+type generatedRuntimeClient struct {
+	client controlplanev1.WorkerControlPlaneClient
+}
+
+type snapshotCredentialResolver struct {
+	store *snapshot.Store
+}
+
+func (resolver snapshotCredentialResolver) Resolve(ctx context.Context, selected proxyDomain.Proxy) (transport.Credentials, error) {
+	credential, err := resolver.store.Credential(ctx, selected)
+	if err != nil {
+		return transport.Credentials{}, err
+	}
+	return transport.Credentials{Username: credential.Username, Password: credential.Password}, nil
+}
+
+func (client generatedRuntimeClient) RegisterWorker(
+	ctx context.Context,
+	request *controlplanev1.RegisterWorkerRequest,
+) (*controlplanev1.RegisterWorkerResponse, error) {
+	return client.client.RegisterWorker(ctx, request)
+}
+
+func (client generatedRuntimeClient) ReportRuntime(
+	ctx context.Context,
+	request *controlplanev1.ReportRuntimeRequest,
+) (*controlplanev1.ReportRuntimeResponse, error) {
+	return client.client.ReportRuntime(ctx, request)
+}
+
+func (runtime *runtime) Run(ctx context.Context) error {
+	if runtime == nil || runtime.group == nil || ctx == nil {
+		return ErrInvalidOptions
+	}
+	return runtime.group.Run(ctx)
+}
+
+func (runtime *runtime) Close() {
+	if runtime != nil && runtime.connection != nil {
+		_ = runtime.connection.Close()
+	}
+}
+
+func reconnectOptions(options Options) controlplane.ReconnectOptions {
+	initial := options.ReconnectInitialDelay
+	if initial == 0 {
+		initial = defaultReconnectInitialDelay
+	}
+	maximum := options.ReconnectMaxDelay
+	if maximum == 0 {
+		maximum = defaultReconnectMaxDelay
+	}
+	jitter := options.ReconnectJitter
+	if jitter == 0 {
+		jitter = defaultReconnectJitter
+	}
+	return controlplane.ReconnectOptions{InitialDelay: initial, MaxDelay: maximum, Jitter: jitter}
+}
+
+type httpRuntime struct {
+	options   httpserver.Options
+	handler   *server.Handler
+	endpoints []httpserver.Endpoint
+}
+
+func newHTTPRuntime(
+	ctx context.Context,
+	configuration *config.Config,
+	options Options,
+	handler *server.Handler,
+	store *snapshot.Store,
+) (*httpRuntime, error) {
+	if ctx == nil || configuration == nil || handler == nil || store == nil {
+		return nil, ErrInvalidOptions
+	}
+	endpoints := make([]httpserver.Endpoint, 0, 2)
+	gatewayListener, gatewayOwned, err := resolveListener(ctx, configuration.Gateway.Listen, options.GatewayListener)
+	if err != nil {
+		return nil, fmt.Errorf("listen gateway: %w", err)
+	}
+	endpoints = append(endpoints, httpserver.Endpoint{Name: "gateway", Listener: gatewayListener, Handler: handler})
+	if configuration.Metrics.Enabled {
+		metricsHandler, metricsErr := platformMetrics.NewHandler(platformMetrics.Dependencies{
+			Gatherer:  prometheus.DefaultGatherer,
+			Readiness: snapshotReadiness{store: store, now: time.Now},
+		})
+		if metricsErr != nil {
+			if gatewayOwned {
+				_ = gatewayListener.Close()
+			}
+			return nil, fmt.Errorf("build gateway metrics: %w", metricsErr)
+		}
+		metricsListener, metricsOwned, listenErr := resolveListener(ctx, configuration.Metrics.Listen, options.MetricsListener)
+		if listenErr != nil {
+			if gatewayOwned {
+				_ = gatewayListener.Close()
+			}
+			return nil, fmt.Errorf("listen gateway metrics: %w", listenErr)
+		}
+		_ = metricsOwned
+		endpoints = append(endpoints, httpserver.Endpoint{Name: "metrics", Listener: metricsListener, Handler: metricsHandler})
+	} else if options.MetricsListener != nil {
+		if gatewayOwned {
+			_ = gatewayListener.Close()
+		}
+		return nil, ErrInvalidOptions
+	}
+	return &httpRuntime{options: options.HTTP, handler: handler, endpoints: endpoints}, nil
+}
+
+func (runtime *httpRuntime) Run(ctx context.Context) error {
+	if runtime == nil || runtime.handler == nil || len(runtime.endpoints) == 0 || ctx == nil {
+		return ErrInvalidOptions
+	}
+	completed := make(chan struct{})
+	go func() {
+		select {
+		case <-ctx.Done():
+			shutdownContext, cancel := context.WithTimeout(context.Background(), shutdownTimeout(runtime.options))
+			defer cancel()
+			_ = runtime.handler.Shutdown(shutdownContext)
+		case <-completed:
+		}
+	}()
+	err := httpserver.Serve(ctx, runtime.options, runtime.endpoints...)
+	close(completed)
+	return err
+}
+
+func resolveListener(ctx context.Context, address string, listener net.Listener) (net.Listener, bool, error) {
+	if listener != nil {
+		return listener, false, nil
+	}
+	resolved, err := (&net.ListenConfig{}).Listen(ctx, "tcp", address)
+	if err != nil {
+		return nil, false, err
+	}
+	return resolved, true, nil
+}
+
+func shutdownTimeout(options httpserver.Options) time.Duration {
+	if options.ShutdownTimeout > 0 {
+		return options.ShutdownTimeout
+	}
+	return httpserver.DefaultOptions().ShutdownTimeout
+}
+
+type snapshotReadiness struct {
+	store *snapshot.Store
+	now   func() time.Time
+}
+
+func (readiness snapshotReadiness) Ready(ctx context.Context) error {
+	if ctx == nil || readiness.store == nil || readiness.now == nil {
+		return ErrNotReady
+	}
+	if err := ctx.Err(); err != nil {
+		return err
+	}
+	current := readiness.store.Current()
+	if current == nil || current.ValidUntil.IsZero() || !current.ValidUntil.After(readiness.now().UTC()) {
+		return ErrNotReady
+	}
+	return nil
+}
+
+func controlPlaneTransport(
+	configuration config.ControlPlane,
+	address string,
+	override credentials.TransportCredentials,
+) (credentials.TransportCredentials, error) {
+	if override != nil {
+		return override, nil
+	}
+	switch configuration.TLS.Mode {
+	case "disabled":
+		if !loopbackAddress(address) {
+			return nil, fmt.Errorf("%w: plaintext control plane target must be loopback", ErrInvalidOptions)
+		}
+		return insecure.NewCredentials(), nil
+	case "mtls":
+		if configuration.GatewayTLS.CertFile == "" || configuration.GatewayTLS.KeyFile == "" || configuration.GatewayTLS.ServerCAFile == "" {
+			return nil, fmt.Errorf("%w: controlPlane.gatewayTLS is required for mtls", ErrInvalidOptions)
+		}
+		certificate, err := tls.LoadX509KeyPair(configuration.GatewayTLS.CertFile, configuration.GatewayTLS.KeyFile)
+		if err != nil {
+			return nil, fmt.Errorf("load gateway control plane certificate: %w", err)
+		}
+		caPEM, err := os.ReadFile(configuration.GatewayTLS.ServerCAFile)
+		if err != nil {
+			return nil, fmt.Errorf("read gateway control plane CA: %w", err)
+		}
+		roots := x509.NewCertPool()
+		if !roots.AppendCertsFromPEM(caPEM) {
+			return nil, errors.New("parse gateway control plane CA")
+		}
+		host, _, _ := net.SplitHostPort(address)
+		return credentials.NewTLS(&tls.Config{
+			MinVersion: tls.VersionTLS13, Certificates: []tls.Certificate{certificate}, RootCAs: roots,
+			ServerName: strings.Trim(host, "[]"),
+		}), nil
+	default:
+		return nil, fmt.Errorf("%w: unsupported control plane tls mode", ErrInvalidOptions)
+	}
+}
+
+func validDialAddress(address string) bool {
+	host, port, err := net.SplitHostPort(address)
+	if err != nil || host == "" {
+		return false
+	}
+	value, err := strconv.ParseUint(port, 10, 16)
+	if err != nil || value == 0 {
+		return false
+	}
+	parsed := net.ParseIP(strings.Trim(host, "[]"))
+	return parsed == nil || !parsed.IsUnspecified()
+}
+
+func loopbackAddress(address string) bool {
+	host, _, err := net.SplitHostPort(address)
+	if err != nil {
+		return false
+	}
+	host = strings.Trim(host, "[]")
+	if strings.EqualFold(host, "localhost") {
+		return true
+	}
+	ip := net.ParseIP(host)
+	return ip != nil && ip.IsLoopback()
+}
+
+func nilInterface(value any) bool {
+	if value == nil {
+		return true
+	}
+	reflected := reflect.ValueOf(value)
+	switch reflected.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Pointer, reflect.Slice:
+		return reflected.IsNil()
+	default:
+		return false
+	}
+}

internal/gateway/bootstrap/bootstrap_test.go

@@ -0,0 +1,296 @@
+package bootstrap
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	controlplanev1 "proxy-pool/gen/controlplane/v1"
+	"proxy-pool/internal/config"
+	"proxy-pool/internal/controlplane/snapshotwire"
+	"proxy-pool/internal/gateway/snapshot"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/protobuf/types/known/durationpb"
+	"google.golang.org/protobuf/types/known/emptypb"
+	"google.golang.org/protobuf/types/known/timestamppb"
+)
+
+func TestRunServesGatewayOnlyAfterApplyingControlPlaneSnapshot(t *testing.T) {
+	t.Parallel()
+
+	target := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
+		if request.URL.Path != "/through-gateway" {
+			t.Fatalf("target path = %q, want /through-gateway", request.URL.Path)
+		}
+		_, _ = io.WriteString(writer, "direct-route")
+	}))
+	t.Cleanup(target.Close)
+
+	controlListener := mustListen(t)
+	controlServer := grpc.NewServer()
+	controlplanev1.RegisterWorkerControlPlaneServer(controlServer, &snapshotServer{
+		snapshot: testSnapshot(t, target.URL),
+	})
+	go func() { _ = controlServer.Serve(controlListener) }()
+	t.Cleanup(func() {
+		controlServer.Stop()
+		_ = controlListener.Close()
+	})
+
+	proxyListener := mustListen(t)
+	metricsListener := mustListen(t)
+	configPath := writeConfig(t, target.URL)
+	ctx, cancel := context.WithCancel(context.Background())
+	t.Cleanup(cancel)
+	result := make(chan error, 1)
+	go func() {
+		result <- Run(ctx, Options{
+			ConfigPath:            configPath,
+			Resolver:              config.OSResolver{},
+			ControlPlaneAddress:   controlListener.Addr().String(),
+			ClusterID:             "cluster-a",
+			WorkerID:              "worker-a",
+			InstanceID:            "instance-a",
+			Zone:                  "zone-a",
+			GatewayListener:       proxyListener,
+			MetricsListener:       metricsListener,
+			GRPCTransport:         insecure.NewCredentials(),
+			ReconnectInitialDelay: 5 * time.Millisecond,
+			ReconnectMaxDelay:     20 * time.Millisecond,
+		})
+	}()
+
+	if err := waitForStatus("http://"+metricsListener.Addr().String()+"/readyz", http.StatusOK); err != nil {
+		select {
+		case runErr := <-result:
+			t.Fatalf("gateway did not become ready: %v; Run() error = %v", err, runErr)
+		default:
+			t.Fatalf("gateway did not become ready: %v", err)
+		}
+	}
+	proxyURL, err := url.Parse("http://" + proxyListener.Addr().String())
+	if err != nil {
+		t.Fatalf("Parse(proxy URL): %v", err)
+	}
+	response, err := (&http.Client{Timeout: time.Second, Transport: &http.Transport{
+		Proxy: http.ProxyURL(proxyURL),
+	}}).Get(target.URL + "/through-gateway")
+	if err != nil {
+		t.Fatalf("GET through gateway: %v", err)
+	}
+	defer response.Body.Close()
+	body, err := io.ReadAll(response.Body)
+	if err != nil {
+		t.Fatalf("ReadAll(gateway response): %v", err)
+	}
+	if response.StatusCode != http.StatusOK || string(body) != "direct-route" {
+		t.Fatalf("gateway response = (%d, %q)", response.StatusCode, body)
+	}
+
+	cancel()
+	select {
+	case err := <-result:
+		if err != nil && !errors.Is(err, context.Canceled) {
+			t.Fatalf("Run() error = %v", err)
+		}
+	case <-time.After(2 * time.Second):
+		t.Fatal("Run() did not stop after cancellation")
+	}
+}
+
+func TestRunRejectsMissingControlPlaneEndpoint(t *testing.T) {
+	t.Parallel()
+
+	err := Run(context.Background(), Options{
+		ConfigPath: "config.yaml", Resolver: config.OSResolver{},
+		ClusterID: "cluster-a", WorkerID: "worker-a", InstanceID: "instance-a", Zone: "zone-a",
+	})
+	if !errors.Is(err, ErrInvalidOptions) {
+		t.Fatalf("Run() error = %v, want ErrInvalidOptions", err)
+	}
+}
+
+func TestControlPlaneTransportRequiresDedicatedGatewayTLS(t *testing.T) {
+	t.Parallel()
+
+	_, err := controlPlaneTransport(config.ControlPlane{
+		TLS: config.ControlPlaneTLS{Mode: "mtls"},
+	}, "controller.example:8443", nil)
+	if !errors.Is(err, ErrInvalidOptions) {
+		t.Fatalf("controlPlaneTransport() error = %v, want ErrInvalidOptions", err)
+	}
+}
+
+func TestSnapshotReadinessRequiresCurrentSnapshot(t *testing.T) {
+	t.Parallel()
+
+	store := snapshot.NewStore("cluster-a", "worker-a")
+	now := time.Now().UTC()
+	readiness := snapshotReadiness{store: store, now: func() time.Time { return now }}
+	if err := readiness.Ready(context.Background()); !errors.Is(err, ErrNotReady) {
+		t.Fatalf("Ready() before snapshot error = %v, want ErrNotReady", err)
+	}
+
+	if err := store.Apply(snapshot.Envelope{
+		ClusterID: "cluster-a", WorkerID: "worker-a", Epoch: 1, Version: 1, Full: true,
+		Checksum: snapshot.ChecksumWithRouting(nil, nil), ValidUntil: now.Add(time.Second),
+	}); err != nil {
+		t.Fatalf("Apply() error = %v", err)
+	}
+	if err := readiness.Ready(context.Background()); err != nil {
+		t.Fatalf("Ready() after snapshot error = %v", err)
+	}
+	now = now.Add(2 * time.Second)
+	if err := readiness.Ready(context.Background()); !errors.Is(err, ErrNotReady) {
+		t.Fatalf("Ready() after expiry error = %v, want ErrNotReady", err)
+	}
+}
+
+type snapshotServer struct {
+	controlplanev1.UnimplementedWorkerControlPlaneServer
+	snapshot *controlplanev1.WorkerSnapshot
+}
+
+func (server *snapshotServer) RegisterWorker(_ context.Context, request *controlplanev1.RegisterWorkerRequest) (*controlplanev1.RegisterWorkerResponse, error) {
+	if request.GetWorkerId() != "worker-a" || request.GetInstanceId() != "instance-a" || request.GetZone() != "zone-a" {
+		return nil, errors.New("unexpected worker registration")
+	}
+	return &controlplanev1.RegisterWorkerResponse{
+		WorkerId: request.GetWorkerId(), SessionId: "session-a", OwnershipEpoch: 1,
+		HeartbeatInterval: durationpb.New(time.Hour), MaxStaleAge: durationpb.New(2 * time.Hour),
+	}, nil
+}
+
+func (server *snapshotServer) WatchSnapshots(_ *controlplanev1.WatchSnapshotsRequest, stream grpc.ServerStreamingServer[controlplanev1.SnapshotEnvelope]) error {
+	if err := stream.Send(&controlplanev1.SnapshotEnvelope{Payload: &controlplanev1.SnapshotEnvelope_Full{Full: server.snapshot}}); err != nil {
+		return err
+	}
+	<-stream.Context().Done()
+	return stream.Context().Err()
+}
+
+func (server *snapshotServer) AcknowledgeSnapshot(context.Context, *controlplanev1.AcknowledgeSnapshotRequest) (*emptypb.Empty, error) {
+	return &emptypb.Empty{}, nil
+}
+
+func (server *snapshotServer) ReportRuntime(context.Context, *controlplanev1.ReportRuntimeRequest) (*controlplanev1.ReportRuntimeResponse, error) {
+	return &controlplanev1.ReportRuntimeResponse{AcceptedOwnershipEpoch: 1}, nil
+}
+
+func testSnapshot(t *testing.T, _ string) *controlplanev1.WorkerSnapshot {
+	t.Helper()
+	generated := time.Now().UTC()
+	result := &controlplanev1.WorkerSnapshot{
+		Version: 1, OwnershipEpoch: 1, GeneratedAt: timestamppb.New(generated), ValidUntil: timestamppb.New(generated.Add(time.Minute)),
+		Routing: []*controlplanev1.RoutingRule{{
+			Name: "gateway-default", Enabled: true, HostRegex: ".+", Upstreams: []string{"provider-a"},
+			Strategy:      &controlplanev1.RoutingStrategy{Type: controlplanev1.StrategyType_STRATEGY_TYPE_RANDOM},
+			OnUnavailable: controlplanev1.UnavailableAction_UNAVAILABLE_ACTION_DIRECT,
+		}},
+	}
+	checksum, err := snapshotwire.Checksum(result)
+	if err != nil {
+		t.Fatalf("Checksum() error = %v", err)
+	}
+	result.Checksum = checksum[:]
+	return result
+}
+
+func writeConfig(t *testing.T, target string) string {
+	t.Helper()
+	parsed, err := url.Parse(target)
+	if err != nil {
+		t.Fatalf("Parse(target URL): %v", err)
+	}
+	port := parsed.Port()
+	if port == "" {
+		t.Fatalf("target URL has no explicit port: %q", target)
+	}
+	path := filepath.Join(t.TempDir(), "gateway.yaml")
+	content := fmt.Sprintf(`version: 1
+security:
+  requireProtectionOnPublicListen: false
+gateway:
+  enabled: true
+  listen: 127.0.0.1:0
+  auth: {mode: none}
+  destinationPolicy:
+    denyPrivateNetworks: false
+    denyLoopback: false
+    denyLinkLocal: false
+    allowedPorts: [%s]
+distribution:
+  enabled: false
+admin:
+  enabled: false
+controlPlane:
+  enabled: true
+  listen: 127.0.0.1:0
+  protocolVersion: 1
+  heartbeatInterval: 1s
+  sessionTTL: 3s
+  maxStaleAge: 2s
+  maxMessageBytes: 1048576
+  maxRuntimeCounters: 10
+  maxConcurrentStreams: 10
+  tls: {mode: disabled}
+metrics:
+  enabled: true
+  listen: 127.0.0.1:0
+upstreams:
+  provider-a:
+    enabled: true
+    exposure: [gateway]
+    provider: {billingMode: fetch, protocols: [http]}
+    api: {url: https://provider.invalid/api, method: GET, auth: {type: none}}
+    proxyAuth: {type: response}
+    pool: {maxSize: 1}
+    capacity: {maxConcurrencyPerProxy: 2}
+    refill: {reconcileInterval: 1s, minimumAvailableSlots: 1, targetAvailableSlots: 2}
+    lifecycle: {ttl: 1m, allocationSafetyMargin: 1s}
+    fetch: {estimatedIPsPerCall: 1, timeout: 1s, maxAttempts: 1, maxInFlight: 1}
+`, port)
+	if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
+		t.Fatalf("WriteFile(): %v", err)
+	}
+	return path
+}
+
+func mustListen(t *testing.T) net.Listener {
+	t.Helper()
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("Listen(): %v", err)
+	}
+	return listener
+}
+
+func waitForStatus(target string, want int) error {
+	deadline := time.Now().Add(2 * time.Second)
+	last := "no response"
+	for time.Now().Before(deadline) {
+		response, err := (&http.Client{Timeout: 100 * time.Millisecond}).Get(target)
+		if err == nil {
+			_ = response.Body.Close()
+			if response.StatusCode == want {
+				return nil
+			}
+			last = response.Status
+		} else {
+			last = err.Error()
+		}
+		time.Sleep(10 * time.Millisecond)
+	}
+	return fmt.Errorf("GET %s did not return %d: last result %s", target, want, last)
+}

internal/gateway/controlplane/watcher.go

@@ -126,6 +126,10 @@ func (watcher *SnapshotWatcher) applyFull(full *controlplanev1.WorkerSnapshot) e
 	if err != nil {
 		return err
 	}
+	credentials, err := wireSnapshotCredentials(full.GetCredentials(), proxies)
+	if err != nil {
+		return err
+	}
 	routes, err := wireRouting(full.GetRouting())
 	if err != nil {
 		return err
@@ -133,12 +137,42 @@ func (watcher *SnapshotWatcher) applyFull(full *controlplanev1.WorkerSnapshot) e
 	envelope := snapshot.Envelope{
 		ClusterID: watcher.options.ClusterID, WorkerID: watcher.options.WorkerID,
 		Epoch: full.GetOwnershipEpoch(), Version: full.GetVersion(), Full: true, ValidUntil: validUntil,
-		Proxies: proxies, Routing: routes,
+		Proxies: proxies, Routing: routes, Credentials: credentials,
 	}
-	envelope.Checksum = snapshot.ChecksumWithRouting(proxies, routes)
+	envelope.Checksum = snapshot.ChecksumWithCredentials(proxies, routes, credentials)
 	return watcher.store.Apply(envelope)
 }
 
+func wireSnapshotCredentials(source []*controlplanev1.SnapshotCredential, proxies []proxyDomain.Proxy) ([]snapshot.Credential, error) {
+	result := make([]snapshot.Credential, len(source))
+	indexed := make(map[string]struct{}, len(source))
+	for index, item := range source {
+		if item == nil || !workerruntime.ValidIdentifier(item.GetSecretRef()) || !workerruntime.ValidIdentifier(item.GetCredentialVersion()) ||
+			(item.GetUsername() == "" && item.GetPassword() == "") {
+			return nil, ErrInvalidSnapshotWatcher
+		}
+		key := item.GetSecretRef() + "\x00" + item.GetCredentialVersion()
+		if _, duplicate := indexed[key]; duplicate {
+			return nil, ErrInvalidSnapshotWatcher
+		}
+		indexed[key] = struct{}{}
+		result[index] = snapshot.Credential{
+			SecretRef: item.GetSecretRef(), CredentialVersion: item.GetCredentialVersion(),
+			Username: item.GetUsername(), Password: item.GetPassword(),
+		}
+	}
+	for _, proxy := range proxies {
+		if proxy.SecretRef == "" && proxy.CredentialVersion == "" {
+			continue
+		}
+		key := proxy.SecretRef + "\x00" + proxy.CredentialVersion
+		if _, exists := indexed[key]; !exists {
+			return nil, ErrInvalidSnapshotWatcher
+		}
+	}
+	return result, nil
+}
+
 func wireRouting(source []*controlplanev1.RoutingRule) ([]routingDomain.Rule, error) {
 	result := make([]routingDomain.Rule, 0, len(source))
 	names := make(map[string]struct{}, len(source))

internal/gateway/controlplane/watcher_test.go

@@ -23,7 +23,11 @@ func TestSnapshotWatcherAppliesVerifiedFullSnapshotAndAcknowledges(t *testing.T)
 		Version: 1, OwnershipEpoch: 7, GeneratedAt: timestamppb.New(time.Now()), ValidUntil: timestamppb.New(time.Now().Add(time.Minute)),
 		Proxies: []*controlplanev1.OwnedProxy{{
 			Id: "proxy-a", Upstream: "upstream-a", Protocol: controlplanev1.ProxyProtocol_PROXY_PROTOCOL_HTTP,
-			Host: "192.0.2.10", Port: 8080, MaxConcurrency: 3, ExpiresAt: timestamppb.New(time.Now().Add(time.Minute)),
+			Host: "192.0.2.10", Port: 8080, Username: "upstream", SecretRef: "cred_a", CredentialVersion: "v1",
+			MaxConcurrency: 3, ExpiresAt: timestamppb.New(time.Now().Add(time.Minute)),
+		}},
+		Credentials: []*controlplanev1.SnapshotCredential{{
+			SecretRef: "cred_a", CredentialVersion: "v1", Username: "upstream", Password: "secret",
 		}},
 		Routing: []*controlplanev1.RoutingRule{{
 			Name: "gateway-api", Enabled: true, HostRegex: `^api\.example\.test$`, Upstreams: []string{"upstream-a"},
@@ -54,6 +58,10 @@ func TestSnapshotWatcherAppliesVerifiedFullSnapshotAndAcknowledges(t *testing.T)
 	if client.watch.GetSessionId() != "session-a" || client.ack.GetVersion() != 1 || !client.ack.GetApplied() || string(client.ack.GetChecksum()) != string(full.GetChecksum()) {
 		t.Fatalf("watch=%+v ack=%+v", client.watch, client.ack)
 	}
+	credential, err := store.Credential(context.Background(), view.Entries[0].Proxy)
+	if err != nil || credential.Username != "upstream" || credential.Password != "secret" {
+		t.Fatalf("Credential() = (%+v, %v)", credential, err)
+	}
 }
 
 func TestSnapshotWatcherRejectsChecksumAndAcknowledgesFailure(t *testing.T) {

internal/gateway/server/e2e_test.go

@@ -277,7 +277,6 @@ func proxyDescriptor(t *testing.T, id, rawURL string) proxyDomain.Proxy {
 		SourceUpstream:    "provider-a",
 		MaxConcurrency:    2,
 		State:             proxyDomain.StateAvailable,
-		CredentialVersion: "v1",
 	}
 }
 

internal/gateway/server/handler_test.go

@@ -595,7 +595,6 @@ func dispatcherWithProxies(t *testing.T, ids ...string) (*dispatch.Dispatcher, *
 			SourceUpstream:    "provider-a",
 			MaxConcurrency:    2,
 			State:             proxyDomain.StateAvailable,
-			CredentialVersion: "v1",
 		})
 	}
 	envelope := snapshot.Envelope{

internal/gateway/snapshot/store.go

@@ -1,6 +1,7 @@
 package snapshot
 
 import (
+	"context"
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
@@ -24,6 +25,8 @@ var (
 	ErrInvalidRuntimeReport = errors.New("invalid worker runtime report")
 	ErrInvalidRuntimeLimit  = errors.New("invalid snapshot runtime limit")
 	ErrRuntimeLimitExceeded = errors.New("snapshot runtime limit exceeded")
+	ErrInvalidCredential    = errors.New("invalid snapshot credential")
+	ErrCredentialMissing    = errors.New("snapshot credential is missing")
 )
 
 const defaultRuntimeLimit = 1_000_000
@@ -102,6 +105,20 @@ type Envelope struct {
 	ValidUntil  time.Time
 	Proxies     []proxyDomain.Proxy
 	Routing     []routing.Rule
+	Credentials []Credential
+}
+
+// Credential is ephemeral material received through a verified mTLS snapshot.
+// Its Format method prevents accidental diagnostics from exposing either value.
+type Credential struct {
+	SecretRef         string
+	CredentialVersion string
+	Username          string
+	Password          string
+}
+
+func (Credential) Format(state fmt.State, _ rune) {
+	_, _ = state.Write([]byte("snapshot.Credential{SecretRef:<redacted>, CredentialVersion:<redacted>, Username:<redacted>, Password:<redacted>}"))
 }
 
 type Entry struct {
@@ -118,6 +135,7 @@ type View struct {
 	ValidUntil  time.Time
 	Entries     []Entry
 	routing     *routing.RuleSet
+	credentials map[string]Credential
 
 	all        []int
 	byScheme   map[proxyDomain.Scheme][]int
@@ -229,13 +247,17 @@ func (s *Store) Apply(envelope Envelope) error {
 	if !envelope.Full || envelope.Epoch == 0 || envelope.Version == 0 {
 		return ErrResyncRequired
 	}
-	if envelope.Checksum != ChecksumWithRouting(envelope.Proxies, envelope.Routing) {
+	if envelope.Checksum != ChecksumWithCredentials(envelope.Proxies, envelope.Routing, envelope.Credentials) {
 		return ErrChecksumMismatch
 	}
 	routes, err := routing.Compile(envelope.Routing)
 	if err != nil {
 		return fmt.Errorf("compile snapshot routing: %w", err)
 	}
+	credentials, err := indexCredentials(envelope.Credentials, envelope.Proxies)
+	if err != nil {
+		return err
+	}
 
 	s.mu.Lock()
 	defer s.mu.Unlock()
@@ -323,12 +345,48 @@ func (s *Store) Apply(envelope Envelope) error {
 		ValidUntil:  envelope.ValidUntil.UTC(),
 		Entries:     entries,
 		routing:     routes,
+		credentials: credentials,
 	}
 	next.buildIndexes()
 	s.current.Store(next)
 	return nil
 }
 
+// Credential resolves one exact Proxy credential reference from the current
+// immutable view. Credentialless proxies preserve their metadata username.
+func (s *Store) Credential(ctx context.Context, selected proxyDomain.Proxy) (Credential, error) {
+	if ctx == nil {
+		return Credential{}, context.Canceled
+	}
+	if err := ctx.Err(); err != nil {
+		return Credential{}, err
+	}
+	if (selected.SecretRef == "") != (selected.CredentialVersion == "") {
+		return Credential{}, ErrInvalidCredential
+	}
+	if selected.SecretRef == "" {
+		return Credential{Username: selected.Username}, nil
+	}
+	if s == nil {
+		return Credential{}, ErrCredentialMissing
+	}
+	current := s.current.Load()
+	if current == nil {
+		return Credential{}, ErrCredentialMissing
+	}
+	credential, ok := current.credentials[credentialKey(selected.SecretRef, selected.CredentialVersion)]
+	if !ok {
+		return Credential{}, ErrCredentialMissing
+	}
+	if selected.Username != "" && credential.Username != "" && selected.Username != credential.Username {
+		return Credential{}, ErrInvalidCredential
+	}
+	if credential.Username == "" {
+		credential.Username = selected.Username
+	}
+	return credential, nil
+}
+
 // MatchRouting matches a request against the immutable rules published with
 // this proxy view. A View is the atomic consistency boundary for both sets.
 func (v *View) MatchRouting(request routing.Request) (routing.Rule, bool) {
@@ -427,12 +485,18 @@ func Checksum(proxies []proxyDomain.Proxy) string {
 }
 
 func ChecksumWithRouting(proxies []proxyDomain.Proxy, rules []routing.Rule) string {
+	return ChecksumWithCredentials(proxies, rules, nil)
+}
+
+func ChecksumWithCredentials(proxies []proxyDomain.Proxy, rules []routing.Rule, credentials []Credential) string {
 	payload := struct {
 		Proxies     []proxyDomain.Proxy `json:"proxies"`
 		Routing     []routing.Rule      `json:"routing"`
+		Credentials []Credential        `json:"credentials"`
 	}{
 		Proxies:     cloneAndSort(proxies),
 		Routing:     cloneRoutingRules(rules),
+		Credentials: cloneAndSortCredentials(credentials),
 	}
 	encoded, err := json.Marshal(payload)
 	if err != nil {
@@ -442,6 +506,46 @@ func ChecksumWithRouting(proxies []proxyDomain.Proxy, rules []routing.Rule) stri
 	return hex.EncodeToString(digest[:])
 }
 
+func indexCredentials(source []Credential, proxies []proxyDomain.Proxy) (map[string]Credential, error) {
+	indexed := make(map[string]Credential, len(source))
+	for _, credential := range source {
+		if credential.SecretRef == "" || credential.CredentialVersion == "" || (credential.Username == "" && credential.Password == "") {
+			return nil, ErrInvalidCredential
+		}
+		key := credentialKey(credential.SecretRef, credential.CredentialVersion)
+		if _, duplicate := indexed[key]; duplicate {
+			return nil, ErrInvalidCredential
+		}
+		indexed[key] = credential
+	}
+	for _, proxy := range proxies {
+		if (proxy.SecretRef == "") != (proxy.CredentialVersion == "") {
+			return nil, ErrInvalidCredential
+		}
+		if proxy.SecretRef == "" {
+			continue
+		}
+		credential, exists := indexed[credentialKey(proxy.SecretRef, proxy.CredentialVersion)]
+		if !exists || (proxy.Username != "" && credential.Username != "" && proxy.Username != credential.Username) {
+			return nil, ErrInvalidCredential
+		}
+	}
+	return indexed, nil
+}
+
+func credentialKey(secretRef, version string) string { return secretRef + "\x00" + version }
+
+func cloneAndSortCredentials(source []Credential) []Credential {
+	cloned := append([]Credential(nil), source...)
+	sort.Slice(cloned, func(left, right int) bool {
+		if cloned[left].SecretRef == cloned[right].SecretRef {
+			return cloned[left].CredentialVersion < cloned[right].CredentialVersion
+		}
+		return cloned[left].SecretRef < cloned[right].SecretRef
+	})
+	return cloned
+}
+
 func cloneRoutingRules(source []routing.Rule) []routing.Rule {
 	result := make([]routing.Rule, len(source))
 	for index, rule := range source {

internal/gateway/snapshot/store_test.go

@@ -1,9 +1,11 @@
 package snapshot
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"reflect"
+	"strings"
 	"testing"
 	"time"
 
@@ -126,6 +128,35 @@ func TestStorePublishesRoutingWithTheSameSnapshotVersion(t *testing.T) {
 	}
 }
 
+func TestStoreResolvesCredentialOnlyFromCurrentSnapshot(t *testing.T) {
+	store := NewStore("cluster-a", "worker-a")
+	proxy := proxyDomain.Proxy{
+		ID: "proxy-a", Scheme: proxyDomain.SchemeHTTP, Host: "192.0.2.10", Port: 8080, MaxConcurrency: 1,
+		SecretRef: "cred_a", CredentialVersion: "v1", Username: "upstream",
+	}
+	envelope := Envelope{
+		ClusterID: "cluster-a", WorkerID: "worker-a", Epoch: 1, Version: 1, Full: true, Proxies: []proxyDomain.Proxy{proxy},
+		Credentials: []Credential{{SecretRef: "cred_a", CredentialVersion: "v1", Username: "upstream", Password: "secret"}},
+	}
+	envelope.Checksum = ChecksumWithCredentials(envelope.Proxies, envelope.Routing, envelope.Credentials)
+	if err := store.Apply(envelope); err != nil {
+		t.Fatalf("Apply(): %v", err)
+	}
+	credential, err := store.Credential(context.Background(), proxy)
+	if err != nil || credential.Username != "upstream" || credential.Password != "secret" {
+		t.Fatalf("Credential() = (%+v, %v)", credential, err)
+	}
+	if formatted := fmt.Sprintf("%+v", credential); strings.Contains(formatted, "secret") || strings.Contains(formatted, "upstream") {
+		t.Fatalf("formatted credential exposes material: %s", formatted)
+	}
+
+	missing := Envelope{ClusterID: "cluster-a", WorkerID: "worker-a", Epoch: 1, Version: 2, Full: true, Proxies: []proxyDomain.Proxy{proxy}}
+	missing.Checksum = ChecksumWithCredentials(missing.Proxies, nil, nil)
+	if err := store.Apply(missing); !errors.Is(err, ErrInvalidCredential) {
+		t.Fatalf("Apply(missing credential) error = %v, want ErrInvalidCredential", err)
+	}
+}
+
 func TestViewSelectFiltersBySchemeUpstreamTagAndExclude(t *testing.T) {
 	now := time.Date(2026, 7, 28, 12, 0, 0, 0, time.UTC)
 	expiresSoon := now.Add(5 * time.Second)