前提条件:

  • K8S集群中正确部署了virtual-kubelet(serverless Kubernetes 默认集成)

ECI支持原生的ConfigMap,可以像原生K8S集群一样使用ConfigMap:

# kubectl create configmap demo --from-literal=test=configmap
configmap/demo created
# kubectl get configmap demo -o yaml
apiVersion: v1
data:
  test: configmap
kind: ConfigMap
metadata:
  creationTimestamp: "2020-01-20T12:54:42Z"
  name: demo
  namespace: default
  resourceVersion: "15340926"
  selfLink: /api/v1/namespaces/default/configmaps/demo
  uid: 07119167-3b84-11ea-8c0c-4ac7cb9a7625

将以下内容保存为pod.yaml:

apiVersion: v1
kind: Pod
metadata:
  name: test-configmap
spec:
  nodeName: virtual-kubelet
  containers:
    - name: nginx
      image: nginx:latest
      volumeMounts:
      - name: config-volume
        mountPath: /cache-test
  volumes:
    - name: config-volume
      configMap:
        name: demo
        items:
        - key: test
          path: keys
  restartPolicy: Always

使用kubectl创建ECI实例:

# kubectl create -f pod.yaml
pod/test-configmap created
# kubectl get pod test-configmap
NAME             READY   STATUS    RESTARTS   AGE
test-configmap   1/1     Running   0          57s
# kubectl exec -it test-configmap bash
root@test-configmap:/# ls cache-test/
keys
root@test-configmap:/# cat cache-test/keys
configmap
可见,已经将ConfigMap中的配置项挂载到了容器内。