Configurare un mesh di servizi gRPC proxyless su GKE

Anteprima

Questo prodotto o funzionalità è soggetto ai "Termini delle Offerte pre-GA" nella sezione Termini generali del servizio dei Termini specifici del servizio. I prodotti e le funzionalità pre-GA sono disponibili "così come sono" e potrebbero avere un supporto limitato. Per saperne di più, consulta le descrizioni della fase di lancio.

In questa pagina viene descritto come eseguire il deployment di un client e un server gRPC proxyless di esempio in un Cloud Service Mesh.

Prerequisiti

Come punto di partenza, questa guida presuppone che tu abbia già:

• Hai creato un cluster GKE e lo hai registrato in un parco risorse.
• Hai installato le definizioni di risorse personalizzate.

Requisiti

Questa sezione elenca i requisiti per i servizi supportati:

• gRPC C++ - versione 1.62.0 o successive
• gRPC Java - versione 1.65.0 o successive
• gRPC Go - versione 1.65.0 o successive
• gRPC Python - versione 1.65.0 o successive

Configurare il servizio

Esegui il deployment di un servizio 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

L'output è simile a

service/helloworld created
deployment.apps/psm-grpc-server created

1. Verifica che i pod siano stati creati:

   kubectl get pods
   

   L'output è simile a

   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
   

   Attendi che tutti i pod siano pronti e che lo stato sia Status In esecuzione prima di procedere.

2. Esegui il deployment di una 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
   

   Questo comando crea un parametro HTTPRoute denominato app1 e invia tutte le RPC al serviziohelloworld.

   Tieni presente che il servizio parentRef è anche helloworld, il che significa che la nostra route HTTP è collegata a questo servizio ed elaborerà tutte le RPC indirizzate a questo servizio. In caso di gRPC senza proxy, si riferisce a qualsiasi client che invia RPC su un canale gRPC per la destinazione xds:///helloworld.default.svc.cluster.local:50051.

3. Verifica che sia stato creato il nuovo percorso HTTP app1:

   kubectl get httproute
   

   L'output è simile a

   NAME   HOSTNAMES   AGE
   app1               72s
   

Configurare il client

Questa sezione descrive come utilizzare un client gRPC per verificare che Cloud Service Mesh instrada correttamente il traffico nel mesh.

Esegui un client gRPC e invitalo a utilizzare la configurazione di routing specificata da 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

L'output è simile a

deployment.apps/psm-grpc-client created

Per verificare se il client è riuscito a raggiungere il servizio, visualizza i relativi log:

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

L'output è simile al seguente:

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

(Facoltativo) Configurazione di Google Cloud Managed Service per Prometheus

Puoi eseguire il deployment della risorsa Google Cloud Managed Service per Prometheus PodMonitoring per esportare le metriche in Cloud Monitoring.

• Per i server, esegui il seguente comando:

  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
  

• Per i client, esegui il seguente comando:

  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
  

  Dopo aver dispiegato la risorsa PodMonitoring, ogni localhost:9464/metrics del pod corrispondente verrà sottoposto a scansione ogni 10 secondi ed esporterà i risultati in Cloud Monitoring.

Per visualizzare le metriche in Cloud Monitoring, svolgi i seguenti passaggi:

Puoi andare alla sezione Metrics Explorer della console Google Cloud, selezionare Destinazione Prometheus > Grpc per trovare le metriche.

Vai a Esplora metriche

Verifica la configurazione del mesh di servizi gRPC proxyless e l'osservabilità del mesh

1. Controlla l'output delle metriche dal pod del client:

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

   L'output mostra le metriche (con le etichette mesh di servizi) che sono state annotate dall'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. Controlla l'output delle metriche dal server:

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

   L'output mostra le metriche (con le etichette mesh di servizi) che sono state annotate dall'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
   …
   

Risolvere i problemi di osservabilità di Cloud Service Mesh

Questa sezione mostra come risolvere i problemi più comuni.

Le metriche non vengono esportate / visualizzate

Assicurati che tutti i binari coinvolti (sia client che server) siano configurati con Observability.

Se utilizzi l'esportatore Prometheus, verifica che l'URL dell'esportatore Prometheus sia configurato come previsto.

Assicurati che i canali gRPC siano abilitati per Cloud Service Mesh. I canali devono avere un target del tipo xds:///. I server gRPC sono sempre abilitati per Cloud Service Mesh.

Nessuna metrica esportata / Un valore dell'attributo in una metrica viene visualizzato come sconosciuto

L'osservabilità di Cloud Service Mesh determina le informazioni sulla topologia del mesh tramite le etichette dell'ambiente. Assicurati che le specifiche del pod o del servizio sia per il client sia per il servizio specifichino tutte le etichette come descritto nell'esempio.

1. Descrivi il deployment di psm-grpc-server:

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

   L'output è simile al seguente:

   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. Descrivi il deployment di psm-grpc-client:

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

   L'output è simile al seguente:

   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