kubectl set env

概要

更新 Pod 模板中的环境变量。

列出一个或多个 Pod、Pod 模板中的环境变量定义。添加、更新或移除一个或多个 Pod 模板（在 Replication Controller 或 Deployment Configuration 内）中的容器环境变量定义。查看或修改指定 Pods 或 Pod 模板中所有容器或只匹配通配符的那些容器中的环境变量定义。

如果传递 "--env -" 参数，则可以使用标准 env 语法从 STDIN 读取环境变量。

可能的资源包括（不区分大小写）

    pod (po), replicationcontroller (rc), deployment (deploy), daemonset (ds), statefulset (sts), cronjob (cj), replicaset (rs)

kubectl set env RESOURCE/NAME KEY_1=VAL_1 ... KEY_N=VAL_N

示例

  # Update deployment 'registry' with a new environment variable
  kubectl set env deployment/registry STORAGE_DIR=/local
  
  # List the environment variables defined on a deployments 'sample-build'
  kubectl set env deployment/sample-build --list
  
  # List the environment variables defined on all pods
  kubectl set env pods --all --list
  
  # Output modified deployment in YAML, and does not alter the object on the server
  kubectl set env deployment/sample-build STORAGE_DIR=/data -o yaml
  
  # Update all containers in all replication controllers in the project to have ENV=prod
  kubectl set env rc --all ENV=prod
  
  # Import environment from a secret
  kubectl set env --from=secret/mysecret deployment/myapp
  
  # Import environment from a config map with a prefix
  kubectl set env --from=configmap/myconfigmap --prefix=MYSQL_ deployment/myapp
  
  # Import specific keys from a config map
  kubectl set env --keys=my-example-key --from=configmap/myconfigmap deployment/myapp
  
  # Remove the environment variable ENV from container 'c1' in all deployment configs
  kubectl set env deployments --all --containers="c1" ENV-
  
  # Remove the environment variable ENV from a deployment definition on disk and
  # update the deployment config on the server
  kubectl set env -f deploy.json ENV-
  
  # Set some of the local shell environment into a deployment config on the server
  env | grep RAILS_ | kubectl set env -e - deployment/registry

选项

继承的父级选项

参阅

• kubectl set - 在对象上设置特定特性