TLDR: Introduce a restartPolicy field to init containers and use it to indicate that an init container is a sidecar container. Kubelet will start init containers with restartPolicy=Always in the order with other init containers, but instead of waiting for its completion, it will wait for the container startup completion.
TLDR: Introduce a restartPolicy field to init containers and use it to indicate that an init container is a sidecar container. Kubelet will start init containers with restartPolicy=Always in the order with other init containers, but instead of waiting for its completion, it will wait for the container startup completion.