在 GKE 上设置无代理 gRPC 服务网格

本页介绍了如何将无代理 gRPC 客户端和服务器示例部署到 Cloud Service Mesh。

前提条件

首先,本指南假定您已经:

使用要求

本部分列出了对受支持服务的要求:

  • gRPC C++ - 1.62.0 版或更高版本
  • gRPC Java - 1.65.0 或更高版本
  • gRPC Go - 1.65.0 或更高版本
  • gRPC Python - 1.65.0 版或更高版本

设置 Service

部署 gRPC 服务:

C++

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-cpp-server:latest
        imagePullPolicy: Always
        args:
          "--port=50051"
        ports:
          - containerPort: 50051
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image: gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory
EOF

Java

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-java-server:latest
        imagePullPolicy: Always
        args:
          "50051"
          "9464"
        ports:
          - containerPort: 50051
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image: gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory
EOF

Go

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-go-server:latest
        imagePullPolicy: Always
        args:
          "--port=50051"
        ports:
          - containerPort: 50051
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image: gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory
EOF

Python

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-python-server:latest
        imagePullPolicy: Always
        args:
          "--port=50051"
        ports:
          - containerPort: 50051
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image: gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory
EOF

输出类似于以下内容

service/helloworld created
deployment.apps/psm-grpc-server created
  1. 验证 Pod 是否已创建:

    kubectl get pods
    

    输出类似于以下内容

    NAME                               READY   STATUS    RESTARTS   AGE
    psm-grpc-server-65966bf76d-2wwxz   1/1     Running   0          13s
    psm-grpc-server-65966bf76d-nbxd2   1/1     Running   0          13s
    

    等待所有 Pod 准备就绪并显示 Status 运行状态,然后再继续。

  2. 部署 HTTPRoute:

    kubectl apply -f - <<EOF
    apiVersion: gateway.networking.k8s.io/v1beta1
    kind: HTTPRoute
    metadata:
      name: app1
    spec:
      parentRefs:
      - name: helloworld
        kind: Service
        group: ""
      rules:
      - backendRefs:
        - name: helloworld
          port: 50051
    EOF
    

    此命令会创建一个名为 app1 的 HTTPRoute,并将所有 RPC 发送到 helloworld 服务。

    请注意,parentRef 服务也是 helloworld,这意味着我们的 HTTPRoute 连接到此服务,并将处理发往以下地址的所有 RPC 。对于无代理 gRPC,它表示通过 gRPC 通道向目标 xds:///helloworld.default.svc.cluster.local:50051 发送 RPC 的任何客户端。

  3. 验证是否已创建新的 app1 HTTPRoute:

    kubectl get httproute
    

    输出类似于以下内容

    NAME   HOSTNAMES   AGE
    app1               72s
    

设置客户端

本部分介绍如何使用 gRPC 客户端验证 Cloud Service Mesh 是否在网格中正确路由流量。

运行 gRPC 客户端,并指示其使用 HTTPRoute 指定的路由配置:

C++

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-cpp-server:latest
        imagePullPolicy: Always
        args:
          "--target=xds:///helloworld.default.svc.cluster.local:50051"
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-client
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CONTAINER_NAME
            value: psm-grpc-client
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image:  gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory

EOF

Java

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-java-server:latest
        imagePullPolicy: Always
        args:
          "world"<br/>"xds:///helloworld.default.svc.cluster.local:50051"
          "9464"
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-client
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CONTAINER_NAME
            value: psm-grpc-client
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image:  gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory

EOF

Go

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-go-server:latest
        imagePullPolicy: Always
        args:
          "--target=xds:///helloworld.default.svc.cluster.local:50051"
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-client
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CONTAINER_NAME
            value: psm-grpc-client
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image:  gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory

EOF

Python

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-python-server:latest
        imagePullPolicy: Always
        args:
          "--target=xds:///helloworld.default.svc.cluster.local:50051"
        env:
          - name: GRPC_XDS_BOOTSTRAP
            value: "/tmp/grpc-xds/td-grpc-bootstrap.json"
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-client
          - name: POD_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.name
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CONTAINER_NAME
            value: psm-grpc-client
          - name: OTEL_RESOURCE_ATTRIBUTES
            value: k8s.pod.name=\$(POD_NAME),k8s.namespace.name=\$(NAMESPACE_NAME),k8s.container.name=\$(CONTAINER_NAME)
        volumeMounts:
          - mountPath: /tmp/grpc-xds/
            name: grpc-td-conf
            readOnly: true
      initContainers:
        - name: grpc-td-init
          image:  gcr.io/trafficdirector-prod/td-grpc-bootstrap:0.16.0
          imagePullPolicy: Always
          args:
            - "--output=/tmp/bootstrap/td-grpc-bootstrap.json"
            - "--vpc-network-name=default"
            - "--xds-server-uri=trafficdirector.googleapis.com:443"
            - "--generate-mesh-id"
          volumeMounts:
            - mountPath: /tmp/bootstrap/
              name: grpc-td-conf
      volumes:
        - name: grpc-td-conf
          emptyDir:
            medium: Memory

EOF

输出类似于以下内容

deployment.apps/psm-grpc-client created

Google Cloud Managed Service for Prometheus 设置(可选)

您可以部署 Google Cloud Managed Service for Prometheus PodMonitoring 资源以将指标导出到 Cloud Monitoring。

  • 对于服务器,请运行以下命令:

    kubectl apply -f - <<EOF
    apiVersion: monitoring.googleapis.com/v1
    kind: PodMonitoring
    metadata:
      name: psm-grpc-server-gmp
    spec:
      selector:
        matchLabels:
          app: psm-grpc-server
      endpoints:
      - port: 9464
        interval: 10s
    EOF
    
  • 对于客户端,请运行以下命令:

    kubectl apply -f - <<EOF
    apiVersion: monitoring.googleapis.com/v1
    kind: PodMonitoring
    metadata:
      name: psm-grpc-client-gmp
    spec:
      selector:
        matchLabels:
          app: psm-grpc-client
      endpoints:
      - port: 9464
        interval: 10s
    EOF
    

    部署 PodMonitoring 资源后,每个匹配的 Pod 的 系统将每 10 秒抓取一次 localhost:9464/metrics,并将导出 并将结果发送到 Cloud Monitoring。

如需在 Cloud Monitoring 中查看指标,请执行以下步骤:

您可以前往 Google Cloud 控制台的 Metrics Explorer 部分,依次选择 Prometheus 目标 > Grpc 以查找指标。

转到 Metrics Explorer

验证无代理 gRPC 服务网格设置和网格可观测性

  1. 检查客户端 Pod 的指标输出:

    kubectl exec $(kubectl get po | grep psm-grpc-client | awk '{print $1;}') -- /usr/bin/curl -s http://localhost:9464/metrics
    

    输出会显示 从端点抓取:

    Defaulted container "psm-grpc-client" out of: psm-grpc-client, grpc-td-init (init)
    # HELP exposer_transferred_bytes_total Transferred bytes to metrics services
    # TYPE exposer_transferred_bytes_total counter
    exposer_transferred_bytes_total 36047
    # HELP exposer_scrapes_total Number of times metrics were scraped
    # TYPE exposer_scrapes_total counter
    exposer_scrapes_total 1
    # HELP exposer_request_latencies Latencies of serving scrape requests, in microseconds
    # TYPE exposer_request_latencies summary
    exposer_request_latencies_count 1
    exposer_request_latencies_sum 1246
    exposer_request_latencies{quantile="0.5"} Nan
    exposer_request_latencies{quantile="0.9"} Nan
    exposer_request_latencies{quantile="0.99"} Nan
    # HELP grpc_client_attempt_rcvd_total_compressed_message_size_By Compressed message bytes received per call attempt
    # TYPE grpc_client_attempt_rcvd_total_compressed_message_size_By histogram
    grpc_client_attempt_rcvd_total_compressed_message_size_By_count{csm_mesh_id="gsmmesh-35av-my-cluster-3-us-east7-c-35av6nnbi9jz",csm_remote_workload_canonical_service="unknown",csm_remote_workload_cluster_name="my-cluster-3",csm_remote_workload_location="us-east7-c",csm_remote_workload_name="psm-grpc-server",csm_remote_workload_namespace_name="default",csm_remote_workload_project_id="grpc-testing",csm_remote_workload_type="gcp_kubernetes_engine",csm_workload_canonical_service="unknown",grpc_method="helloworld.Greeter/SayHello",grpc_status="OK",grpc_target="xds:///helloworld.default.svc.cluster.local:50051"} 114 1695445356167
    ...
    
  2. 检查服务器输出的指标:

    kubectl exec $(kubectl get po | grep psm-grpc-server | awk '{print $1;}' | head -n 1) -- /usr/bin/curl -s http://localhost:9464/metrics
    

    输出显示从端点抓取的指标(带有服务网格标签):

    Defaulted container "psm-grpc-server" out of: psm-grpc-server, grpc-td-init (init)
    # HELP exposer_transferred_bytes_total Transferred bytes to metrics services
    # TYPE exposer_transferred_bytes_total counter
    exposer_transferred_bytes_total 35945
    # HELP exposer_scrapes_total Number of times metrics were scraped
    # TYPE exposer_scrapes_total counter
    exposer_scrapes_total 1
    # HELP exposer_request_latencies Latencies of serving scrape requests, in microseconds
    # TYPE exposer_request_latencies summary
    exposer_request_latencies_count 1
    exposer_request_latencies_sum 2369
    exposer_request_latencies{quantile="0.5"} Nan
    exposer_request_latencies{quantile="0.9"} Nan
    exposer_request_latencies{quantile="0.99"} Nan
    # HELP target Target metadata
    # TYPE target gauge
    target_info{otel_scope_name="grpc-c++",otel_scope_version="1.62.0-dev",service_name="unknown_service",k8s_pod_name="psm-grpc-server-6f75c8f857-qst5k",k8s_namespace_name="default",k8s_container_name="$(CONTAINER_NAME)",telemetry_sdk_version="1.13.0",telemetry_sdk_name="opentelemetry",telemetry_sdk_language="cpp"} 1 1708157423871
    # HELP grpc_server_call_sent_total_compressed_message_size_bytes Compressed message bytes sent per server call
    # TYPE grpc_server_call_sent_total_compressed_message_size_bytes histogram
    grpc_server_call_sent_total_compressed_message_size_bytes_count{csm_mesh_id="gsmmesh-fogj-my-cluster-us-central1-a-fogjnvmqo8fn",csm_remote_workload_canonical_service="unknown",csm_remote_workload_cluster_name="my-cluster",csm_remote_workload_location="us-central1-a",csm_remote_workload_name="test-workload-name",csm_remote_workload_namespace_name="default",csm_remote_workload_project_id="project-id",csm_remote_workload_type="gcp_kubernetes_engine",csm_workload_canonical_service="unknown",grpc_method="helloworld.Greeter/SayHello",grpc_status="OK",otel_scope_name="grpc-c++",otel_scope_version="1.62.0-dev"} 1796 1708157423871
    …
    

排查 Cloud Service Mesh 可观测性问题

本部分介绍了如何排查常见问题。

指标的属性值显示为“未知”

如果指标的某个属性值显示为“未知”,请确保 涉及的二进制文件(客户端和服务器) 在 GKE 上设置无代理 gRPC 服务网格

请注意,Cloud Service Mesh Observability 通过环境标签确定网格拓扑信息。确保客户端和服务的 Pod 或服务规范都指定了示例中所述的所有标签。

  1. 描述 psm-grpc-server 部署:

    kubectl describe Deployment psm-grpc-server | grep "psm-grpc-server:" -A 12
    

    输出类似于以下内容:

    psm-grpc-server:
    Image:      grpc/csm-example-server:2024-02-13
    Port:       50051/TCP
    Host Port:  0/TCP
    Args:
      --port=50051
    Environment:
      GRPC_XDS_BOOTSTRAP:          /tmp/grpc-xds/td-grpc-bootstrap.json
      POD_NAME:                     (v1:metadata.name)
      NAMESPACE_NAME:               (v1:metadata.namespace)
      CSM_WORKLOAD_NAME:           psm-grpc-server
      OTEL_RESOURCE_ATTRIBUTES:    k8s.pod.name=$(POD_NAME),k8s.namespace.name=$(NAMESPACE_NAME),k8s.container.name=$(CONTAINER_NAME)
    
  2. 描述 psm-grpc-client 部署:

    kubectl describe Deployment psm-grpc-client | grep "psm-grpc-client:" -A 12
    

    输出类似于以下内容:

    psm-grpc-client:
    Image:      grpc/csm-example-client:2024-02-13
    Port:       <none>
    Host Port:  <none>
    Args:
      --target=xds:///helloworld.default.svc.cluster.local:50051
    Environment:
      GRPC_XDS_BOOTSTRAP:          /tmp/grpc-xds/td-grpc-bootstrap.json
      CSM_WORKLOAD_NAME:           test-workload-name
      POD_NAME:                     (v1:metadata.name)
      NAMESPACE_NAME:               (v1:metadata.namespace)
      CONTAINER_NAME:              psm-grpc-client
    

不显示指标

如果您使用的是 Prometheus 导出器,请验证 Prometheus 导出器的网址是否已按预期设置。

确保 gRPC 通道已启用 Cloud Service Mesh。渠道的目标应采用 xds:/// 的形式。Cloud Service Mesh 始终启用 gRPC 服务器。