insertIfNotExists

This operation adds the specified elements (like environment variables or volume mounts) only if they do not already exist in the target container. If the container already defines an element with the same name, kTailor will leave the original value intact.

Reminder: Define the env and volumeMounts exactly as you would in a standard Kubernetes manifest.

Example

modifyContainers:
  insertIfNotExists:
    env:
      - name: LOG_LEVEL
        value: "INFO"
    volumeMounts:
      - name: config-volume
        mountPath: /etc/config