在 GKE 中設定無 Proxy gRPC 服務網格

本頁說明如何將範例無 Proxy gRPC 用戶端和伺服器部署至 Cloud Service Mesh。

必要條件

本指南假設您已具備以下條件：

需求條件

本節列出支援服務的相關規定：

  • gRPC C++ - 1.68.1 以上版本
  • gRPC Java - 1.68.2 以上版本
  • gRPC Go - 1.68.0 以上版本
  • gRPC Python - 1.68.1 以上版本

設定無 Proxy gRPC 服務

本指南將說明在服務網格中設定無 Proxy gRPC 服務的兩種方法：

方法 1：手動設定

這個方法需要手動設定無 Proxy gRPC 服務的必要元件。

  • InitContainer：在 Pod 的規格中使用 initContainer，執行 Traffic Director gRPC 啟動產生器。這個產生器會為服務產生必要的設定。
  • 磁碟區掛接：掛接包含從 initContainer 產生的設定的磁碟區。確保應用程式可以存取必要設定。
  • 環境變數：加入適當的環境變數，從應用程式啟用 CSM 可觀測性指標的發布功能。這些指標可提供寶貴的洞察資料，協助您瞭解服務成效。

方法 2：使用 Proxyless Bootstrap Injector 自動執行

您可以使用無 Proxy 啟動程序注入器，以簡化方式設定無 Proxy gRPC 服務，不必手動設定。

這項功能會自動完成設定程序，讓您更輕鬆地部署服務。如要啟用這項功能，請在命名空間中新增標籤 mesh.cloud.google.com/csm-injection=proxyless。

只要在命名空間中加入這個標籤，注入器就會處理所有必要設定，為您節省寶貴時間和精力。

如要更精細地控管，也可以直接將這個標籤套用至個別 Pod。這樣就能覆寫命名空間層級設定，並根據每個 Pod 自訂插入行為。

無論採用哪種方法，您都能在服務網格中成功建立無 Proxy gRPC 服務。

手動

  1. 套用命名空間

    kubectl apply -f - <<EOF
---
kind: Namespace
apiVersion: v1
metadata:
 name: proxyless-example
EOF

  2. 部署 gRPC 服務：

C++

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
        service.istio.io/canonical-name: deployment-psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-cpp-server:v1.68.1
        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: CONTAINER_NAME
            value: psm-grpc-server
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
        service.istio.io/canonical-name: deployment-psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-java-server:v1.68.2
        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: CONTAINER_NAME
            value: psm-grpc-server
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
        service.istio.io/canonical-name: deployment-psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-go-server:v1.69.0
        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: CONTAINER_NAME
            value: psm-grpc-server
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  labels:
    app: psm-grpc-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: psm-grpc-server
  template:
    metadata:
      labels:
        app: psm-grpc-server
        service.istio.io/canonical-name: deployment-psm-grpc-server
    spec:
      containers:
      - name: psm-grpc-server
        image: grpc/csm-o11y-example-python-server:v1.68.1
        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: CONTAINER_NAME
            value: psm-grpc-server
          - name: NAMESPACE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.namespace
          - name: CSM_WORKLOAD_NAME
            value: psm-grpc-server
          - name: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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

輸出內容類似如下

namespace/proxyless-example created
service/helloworld created
deployment.apps/psm-grpc-server created

自動

  1. 套用命名空間

    kubectl apply -f - <<EOF
---
kind: Namespace
apiVersion: v1
metadata:
 name: proxyless-example
EOF

  2. 執行下列指令，在 proxyless-example 命名空間中啟用 Proxyless Bootstrap Injector：

    kubectl label namespace proxyless-example mesh.cloud.google.com/csm-injection=proxyless

  3. 部署 gRPC 服務：

C++

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  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:v1.68.1
        imagePullPolicy: Always
        args:
          - "--port=50051"
        ports:
          - containerPort: 50051
EOF

Java

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  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:v1.68.2
        imagePullPolicy: Always
        args:
          - "50051"
          - "9464"
        ports:
          - containerPort: 50051
EOF

Go

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  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:v1.69.0
        imagePullPolicy: Always
        args:
          - "--port=50051"
        ports:
          - containerPort: 50051
EOF

Python

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: Service
metadata:
  name: helloworld
  namespace: proxyless-example
spec:
  selector:
    app: psm-grpc-server
  ports:
  - port: 50051
    targetPort: 50051
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-server
  namespace: proxyless-example
  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:v1.68.1
        imagePullPolicy: Always
        args:
          - "--port=50051"
        ports:
          - containerPort: 50051
EOF

輸出內容類似如下

namespace/proxyless-example created
service/helloworld created
deployment.apps/psm-grpc-server created

  1. 確認 Pod 已建立：

    kubectl get pods -n proxyless-example

    輸出內容類似如下

    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 準備就緒並處於 Status「執行中」狀態，再繼續操作。

  2. 部署 HTTPRoute：

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

    這項指令會建立名為 app1 的 HTTPRoute，並將所有 RPC 傳送至 helloworld 服務。

    請注意，parentRef 服務也是 helloworld，也就是說，我們的 HTTPRoute 會附加至這項服務，並處理所有傳送至這項服務的 RPC。如果是無 Proxy gRPC，則表示任何用戶端都會在目標 xds:///helloworld.proxyless-example.svc.cluster.local:50051 的 gRPC 管道上傳送 RPC。

  3. 確認已建立新的 app1 HTTPRoute：

    kubectl get httproute -n proxyless-example

    輸出內容類似如下

    NAME   HOSTNAMES   AGE
app1               72s

設定無 Proxy gRPC 用戶端

本節說明如何使用 gRPC 用戶端，確認 Cloud Service Mesh 在網格中正確轉送流量。

設定用戶端時，您有兩種選擇，與設定服務時相同：

方法 1：手動設定

這種做法需要手動設定用戶端所需的元件，與手動服務設定相呼應。

方法 2：使用 Proxyless Bootstrap Injector 自動執行

或者，您可以使用自動注入器簡化用戶端設定程序。這可簡化設定，減少手動介入。 只要在命名空間套用標籤即可達成。

這兩種選項都能為用戶端提供必要功能。選擇最符合需求和偏好的方法。

手動

執行 gRPC 用戶端，並導向至 HTTPRoute 指定的轉送設定：

C++

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  namespace: proxyless-example
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
        service.istio.io/canonical-name: deployment-psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-cpp-client:v1.68.1
        imagePullPolicy: Always
        args:
          - "--target=xds:///helloworld.proxyless-example.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: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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
  namespace: proxyless-example
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
        service.istio.io/canonical-name: deployment-psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-java-client:v1.68.2
        imagePullPolicy: Always
        args:
          - "world"
          - "xds:///helloworld.proxyless-example.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: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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
  namespace: proxyless-example
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
        service.istio.io/canonical-name: deployment-psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-go-client:v1.69.4
        imagePullPolicy: Always
        args:
          - "--target=xds:///helloworld.proxyless-example.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: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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
  namespace: proxyless-example
  labels:
    app: psm-grpc-client
spec:
  replicas: 1
  selector:
    matchLabels:
      app: psm-grpc-client
  template:
    metadata:
      labels:
        app: psm-grpc-client
        service.istio.io/canonical-name: deployment-psm-grpc-client
    spec:
      containers:
      - name: psm-grpc-client
        image: grpc/csm-o11y-example-python-client:v1.68.1
        imagePullPolicy: Always
        args:
          - "--target=xds:///helloworld.proxyless-example.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: CSM_CANONICAL_SERVICE_NAME
            valueFrom:
              fieldRef:
                fieldPath: metadata.labels['service.istio.io/canonical-name']
          - name: CSM_MESH_ID
            value: proj-PROJECT_NUMBER
          - 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

自動

執行 gRPC 用戶端，並導向至 HTTPRoute 指定的轉送設定：

C++

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  namespace: proxyless-example
  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-client:v1.68.1
        imagePullPolicy: Always
        args:
          - "--target=xds:///helloworld.proxyless-example.svc.cluster.local:50051"
EOF

Java

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  namespace: proxyless-example
  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-client:v1.68.2
        imagePullPolicy: Always
        args:
          - "world"
          - "xds:///helloworld.proxyless-example.svc.cluster.local:50051"
          - "9464"
EOF

Go

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  namespace: proxyless-example
  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-client:v1.69.0
        imagePullPolicy: Always
        args:
          - "--target=xds:///helloworld.proxyless-example.svc.cluster.local:50051"
EOF

Python

kubectl apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: psm-grpc-client
  namespace: proxyless-example
  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-client:v1.68.1
        imagePullPolicy: Always
        args:
          - "--target=xds:///helloworld.proxyless-example.svc.cluster.local:50051"
EOF

輸出內容類似如下

deployment.apps/psm-grpc-client created

如要確認用戶端是否能連上服務，請查看用戶端的記錄：

kubectl logs -n proxyless-example $(kubectl get po -n proxyless-example | grep psm-grpc-client | awk '{print $1;}') -f

輸出內容類似如下：

Defaulted container "psm-grpc-client" out of: psm-grpc-client, grpc-td-init (init)
Greeter received: Hello from psm-grpc-server-xxxxxxx-xxxx world

Google Cloud Managed Service for Prometheus 設定 (選用)

您可以部署 Google Cloud Managed Service for Prometheus PodMonitoring 資源，將指標匯出至 Cloud Monitoring。

  • 如要套用至伺服器，請執行下列指令：

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

  • 如要套用至用戶端，請執行下列指令：

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

    部署 PodMonitoring 資源後，系統會每 10 秒擷取一次每個相符 Pod 的 localhost:9464/metrics，並將結果匯出至 Cloud Monitoring。

如要在 Cloud Monitoring 中查看指標，請執行下列步驟：

您可以前往Google Cloud 控制台的「指標探索工具」部分，選取「Prometheus 目標」>「Grpc」來尋找指標。

前往 Metrics Explorer

您可以在 Google Cloud 控制台的「Service Mesh」部分，觀察已部署的工作負載和服務。

前往服務網格

排解 Cloud Service Mesh 觀測功能問題

本節說明如何排解常見問題。

指標未匯出 / 顯示

請確保所有相關聯的二進位檔 (用戶端和伺服器) 都已設定可觀測性。

如果您使用 Prometheus 匯出工具，請確認 Prometheus 匯出工具的網址設定正確無誤。

確認 gRPC 管道已啟用 Cloud Service Mesh。管道的目標應採用 xds:/// 格式。Cloud Service Mesh 一律會啟用 gRPC 伺服器。

未匯出任何指標 / 指標的屬性值顯示為不明

Cloud Service Mesh Observability 會透過環境標籤判斷網格拓撲資訊。請確認用戶端和服務的 Pod 或服務規格都指定了所有標籤，如範例所示。

  1. 描述 psm-grpc-server 部署作業：

    kubectl describe Deployment psm-grpc-server -n proxyless-example \
| grep "psm-grpc-server:" -A 12

    輸出內容類似如下：

    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. 說明 psm-grpc-client 部署作業：

    kubectl describe Deployment psm-grpc-client -n proxyless-example \
| grep "psm-grpc-client:" -A 12

    輸出內容類似如下：

    psm-grpc-client:
Image:      grpc/csm-example-client:2024-02-13
Port:       <none>
Host Port:  <none>
Args:
  --target=xds:///helloworld.proxyless-example.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