Container Service for Kubernetes:Execute um Job com ECI

Etapa 1: Crie um namespace e adicione o rótulo ECI

kubectl create ns vk
kubectl label namespace vk alibabacloud.com/eci=true

Todos os pods no namespace vk são executados como pods ECI em nós virtuais.

Etapa 2: Crie o Job

1. Salve o seguinte conteúdo YAML como job.yaml. Este Job usa 16 núcleos de CPU e 32 GiB de memória para calcular pi com 2.000 dígitos.

   apiVersion: batch/v1
   kind: Job
   metadata:
     name: pi
     namespace: vk     # Pods in this namespace are scheduled to Elastic Container Instances
   spec:
     template:
       spec:
         containers:
         - name: pi
           image: registry.cn-shanghai.aliyuncs.com/eci_open/perl:5.32
           command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
           resources:
             requests:
               cpu: 16
               memory: 32Gi
         restartPolicy: Never
     backoffLimit: 4

2. Aplique o arquivo YAML.

   kubectl -n vk apply -f job.yaml

Etapa 3: Verifique a conclusão do Job

Verifique o status do pod.

kubectl -n vk get pod -o wide

O status Completed e o prefixo de nome de nó virtual-kubelet confirmam a execução do pod em um nó virtual.

NAME       READY   STATUS      RESTARTS   AGE   IP              NODE                            NOMINATED NODE   READINESS GATES
pi-zw2lc   0/1     Completed   0          15m   192.168.XX.XX   virtual-kubelet-cn-shanghai-b   <none>           <none>

Etapa 4: Confirme a interrupção do faturamento

Inspecione os eventos do pod.

kubectl -n vk describe pod <pod-name>

Um evento StopCharge na seção Events confirma a finalização do pod ECI e a interrupção do faturamento.

Events:
  Type     Reason            Age   From        Message
  ----     ------            ----  ----        -------
  Warning  ImageCacheMissed  16m   EciService  [eci.imagecache]Missed image cache.
  Normal   Pulling           16m   kubelet     Pulling image "registry.cn--shanghai.aliyuncs.com/eci_open/perl:5.32"
  Normal   Pulled            15m   kubelet     Successfully pulled image "registry.cn-shanghai.aliyuncs.com/eci_open/perl:5.32" in 12.951s (12.951s including waiting). Image size: 336066994 bytes.
  Normal   Created           15m   kubelet     Created container: pi
  Normal   Started           15m   kubelet     Started container pi
  Normal   StopCharge        15m   EciService  [eci.containergroup]The charge of current ECI instance has been stopped, but the related resources are still being cleaned.

Os pods ECI são faturados conforme o uso real de recursos e param de gerar custos após a conclusão. Consulte Billing of elastic container instances e Lifecycle of elastic container instance pods .