OpenShift Init Container
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External
- https://kubernetes.io/docs/concepts/workloads/pods/init-containers/
- https://docs.openshift.com/container-platform/latest/architecture/core_concepts/containers_and_images.html#init-containers
Internal
Overview
An init container is a specialized container that runs before the application containers, and can contain utilities or setup scripts not present in the application image. If a pod declares init containers, the application containers are only run after all init container complete successfully.
An init container always runs to completion, and if more than one init containers are declared, each one must complete successfully before the next one is started.
If an init container fails, Kubernetes will restart the Pod repeatedly until the init container succeeds, unless the pod has a "restartPolicy" of "Never".