Menyiapkan mesh layanan gRPC tanpa proxy di GKE

Halaman ini menjelaskan cara men-deploy contoh klien dan server gRPC tanpa proxy ke Cloud Service Mesh.

Prasyarat

Sebagai titik awal, panduan ini mengasumsikan bahwa Anda telah:

Persyaratan

Bagian ini mencantumkan persyaratan untuk layanan yang didukung:

  • gRPC C++ - versi 1.62.0 atau yang lebih baru
  • gRPC Java - versi 1.65.0 atau yang lebih baru
  • gRPC Go - versi 1.65.0 atau yang lebih baru
  • gRPC Python - versi 1.65.0 atau yang lebih baru

Menyiapkan Layanan

Men-deploy layanan gRPC:

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:v1.65.1
        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: 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:v1.65.1
        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:v1.65.0
        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: 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

Outputnya mirip dengan

service/helloworld created
deployment.apps/psm-grpc-server created
  1. Pastikan Pod telah dibuat:

    kubectl get pods
    

    Outputnya mirip dengan

    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
    

    Tunggu hingga semua Pod siap dan memiliki Status Berjalan sebelum melanjutkan.

  2. Deploy 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
    

    Perintah ini membuat HTTPRoute yang disebut app1 dan mengirim semua RPC ke layanan helloworld.

    Perhatikan bahwa layanan parentRef juga merupakan helloworld yang berarti HTTPRoute kita terpasang ke layanan ini dan akan memproses semua RPC yang ditujukan ke layanan ini. Dalam kasus gRPC tanpa proxy, ini berarti klien apa pun yang mengirim RPC di saluran gRPC untuk target xds:///helloworld.default.svc.cluster.local:50051.

  3. Pastikan HTTPRoute app1 baru telah dibuat:

    kubectl get httproute
    

    Outputnya mirip dengan

    NAME   HOSTNAMES   AGE
    app1               72s
    

Menyiapkan Klien

Bagian ini menjelaskan cara menggunakan klien gRPC untuk memverifikasi bahwa Cloud Service Mesh merutekan traffic dengan benar di mesh.

Jalankan klien gRPC dan arahkan untuk menggunakan konfigurasi pemilihan rute yang ditentukan oleh HTTPRoute:

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-client:v1.65.1
        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-client:v1.65.1
        imagePullPolicy: Always
        args:
          - "world"
          - "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-client:v1.65.0
        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-client: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

Outputnya mirip dengan

deployment.apps/psm-grpc-client created

Untuk memverifikasi apakah klien dapat menjangkau layanan, lihat log klien:

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

Outputnya mirip dengan:

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

Penyiapan Google Cloud Managed Service for Prometheus (Opsional)

Anda dapat men-deploy resource PodMonitoring Google Cloud Managed Service for Prometheus untuk mengekspor metrik ke Cloud Monitoring.

  • Untuk server, jalankan perintah berikut:

    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
    
  • Untuk klien, jalankan perintah berikut:

    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
    

    Setelah men-deploy resource PodMonitoring, setiap localhost:9464/metrics pod yang cocok akan di-scrap setiap 10 detik dan akan mengekspor hasilnya ke Cloud Monitoring.

Untuk melihat metrik di Cloud Monitoring, lakukan langkah-langkah berikut:

Anda dapat membuka bagian Metrics Explorer di konsol Google Cloud, memilih Prometheus Target > Grpc untuk menemukan metrik.

Buka Metrics Explorer

Memverifikasi penyiapan mesh layanan gRPC tanpa proxy dan Observabilitas mesh

  1. Periksa output metrik dari Pod klien:

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

    Output menampilkan metrik (dengan label mesh layanan) yang di-scrap dari endpoint:

    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. Periksa output metrik dari server:

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

    Output menampilkan metrik (dengan label mesh layanan) yang di-scrap dari endpoint:

    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
    …
    

Memecahkan masalah visibilitas Cloud Service Mesh

Bagian ini menunjukkan cara memecahkan masalah umum.

Metrik tidak diekspor / ditampilkan

Pastikan semua biner yang terlibat (baik klien maupun server) disiapkan dengan Observability.

Jika Anda menggunakan eksportir Prometheus, pastikan URL untuk eksportir Prometheus disiapkan seperti yang diharapkan.

Pastikan saluran gRPC diaktifkan oleh Cloud Service Mesh. Saluran harus memiliki target dalam bentuk xds:///. Server gRPC selalu diaktifkan untuk Cloud Service Mesh.

Tidak ada metrik yang diekspor / Nilai atribut pada metrik muncul sebagai tidak diketahui

Observasi Cloud Service Mesh menentukan informasi topologi mesh melalui label lingkungan. Pastikan spesifikasi Pod atau layanan untuk klien dan layanan menentukan semua label seperti yang dijelaskan dalam contoh.

  1. Jelaskan deployment psm-grpc-server:

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

    Outputnya mirip dengan:

    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. Deskripsikan deployment psm-grpc-client:

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

    Outputnya mirip dengan:

    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