在 GKE 上设置无代理 gRPC 服务网格

本页面介绍了如何将示例无代理 gRPC 客户端和服务器部署到 Cloud Service Mesh。

前提条件

首先，本指南假定您已完成以下操作：

要求

本部分列出了受支持服务的要求：

  • gRPC C++ - 1.68.1 版或更高版本
  • gRPC Java - 1.68.2 版或更高版本
  • gRPC Go - 1.68.0 版或更高版本
  • gRPC Python - 1.68.1 版或更高版本

设置无代理 gRPC 服务

本指南简要介绍了在服务网格中设置无代理 gRPC 服务的两种方法：

方法 1：手动配置

此方法要求您为无代理 gRPC 服务手动配置必要的组件。

  • InitContainer：在 Pod 的规范中使用 initContainer 来执行 Cloud Service Mesh gRPC 引导生成器。此生成器会为您的服务生成所需的配置。
  • 卷装载：装载包含从 initContainer 生成的配置的卷。这可确保您的应用可以访问必要的设置。
  • 环境变量：添加适当的环境变量，以从应用中发出 CSM 可观测性指标。这些指标可提供有关服务性能的有价值的数据分析。。

方法 2：自动使用无代理引导注入器

您可以选择使用无代理引导注入器这种简化的方法，而无需手动配置无代理 gRPC 服务。

此功能可自动执行设置过程，从而更轻松地部署服务。如需启用此功能，请将标签 mesh.cloud.google.com/csm-injection=proxyless 添加到命名空间。

通过将此标签添加到命名空间，注入器可以处理所有必要的配置，从而节省宝贵的时间和精力。

如果您需要更精细的控制，也可以直接将此标签应用于各个 Pod。这样，您就可以替换命名空间级设置，并根据每个 Pod 自定义注入行为。

通过遵循其中任一方法，您都可以在服务网格中成功建立无代理 gRPC 服务。

手动

  1. 应用命名空间

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

  2. 部署 gRPC 服务：

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

输出类似于以下内容

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

自动

  1. 应用命名空间

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

  2. 运行以下命令，以在 proxyless-example 命名空间中启用无代理引导注入器：

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

  3. 部署 gRPC 服务：

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

输出类似于以下内容

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

  1. 验证是否已创建 Pod：

    kubectl get pods -n proxyless-example

    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 准备就绪并运行 Status 后再继续。

  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

    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 会附加到此服务，并会处理发送到此服务的所有 RPC。对于无代理 gRPC，这意味着任何客户端都可以通过 gRPC 渠道向目标 xds:///helloworld.proxyless-example.svc.cluster.local:50051 发送 RPC。

  3. 验证是否已创建新的 app1 HTTPRoute：

    kubectl get httproute -n proxyless-example

    输出类似于以下内容

    NAME   HOSTNAMES   AGE
app1               72s

设置无代理 gRPC 客户端

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

与配置服务一样，您可以通过以下两种方式设置客户端：

方法 1：手动配置

此方法涉及为客户端手动设置必要的组件，以镜像手动服务配置。

方法 2：自动使用无代理引导注入器

或者，您也可以使用自动注入器来简化客户端设置过程。这简化了配置并减少了手动干预。 这是通过在命名空间上应用标签来实现的。

这两种方式都可以为客户端提供必要的功能。请选择最符合您需求和偏好的方法。

手动

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
  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

自动

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
  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:v1.69.4
        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

输出类似于以下内容

deployment.apps/psm-grpc-client created

如需验证客户端是否能够访问服务，请查看客户端的日志：

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

输出类似于以下内容：

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 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
  namespace: proxyless-example
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
  namespace: proxyless-example
spec:
  selector:
    matchLabels:
      app: psm-grpc-client
  endpoints:
  - port: 9464
    interval: 10s
EOF

    部署 PodMonitoring 资源后，系统会每 10 秒爬取每个匹配的 Pod 的 localhost:9464/metrics，并将结果导出到 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，选择“Prometheus 目标”>“Grpc”以查找指标。

转到 Metrics Explorer

您可以在 Google Cloud 控制台的“服务网格”部分中观察已部署的工作负载和服务。

前往“服务网格”

排查 Cloud Service Mesh 可观测性问题

本部分介绍如何排查常见问题。

指标未导出/未显示

确保涉及的所有二进制程序（客户端和服务器）都已设置可观测性。

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 渠道启用了 Cloud Service Mesh。渠道的目标应采用 xds:/// 的形式。gRPC 服务器会始终为 Cloud Service Mesh 启用。

未导出任何指标/指标上的属性值显示为未知

Cloud Service Mesh 可观测性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 -n proxyless-example \
| 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 -n proxyless-example \
| 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.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