Kubernetes - Environment Variable

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Kubernetes Environment Variable

Configuration for an application is usually injected as Environment variable. You can set a container’s environment variable in the deployment yaml file:

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spec:
  containers:
  - env:
    - name: FOO
      value: bar
    - name: BAZ
      value: qux

You can also use set env command to set the container’s environment variable

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kubectl set env deployment/deployment-name FOO="bar"

To unset an environment variable

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kubectl set env deployment/deployment-name FOO-