Kubernetes - wait for other pod to be ready

Question

I have two applications - app1 and app2, where app1 is a config server that holds configs for app2

Answer 1

Using wait-for-it.sh is actually quite easy:

  initContainers:
  - name: wait-for-app1
    image: image-docker-containing-sh
    args:
    - /bin/sh
    - -c
    - /usr/app/wait-for-it.sh app1: -t 0

Of course retries and timeouts are the way to go, but this works great as a workaround.