apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: busybox
spec:
  components:
    - name: busybox
      type: webservice
      properties:
        image: busybox
        cmd: ["sleep", "86400"]
      traits:
        - type: sidecar
          properties:
            name: sidecar-nginx
            image: nginx
        - type: env
          properties:
            # by default, the following environment variable will be patched to the main container -> busybox in this case
            env:
              key_first: value_first
              key_second: value_second

            # if you want to patch the sidecar container, specify the container name explicitly
            # containerName: sidecar-nginx

            # if you want to unset some existing environment variables in the container, use the `unset` parameter
            # unset: ["key_existing_first", "key_existing_second"]

            # if you want to clear all the existing environment variables in the container, use the `replace` parameter
            # replace: true