Solution Initcontainers

• Creating an init container in the pod definition file: ``` — apiVersion: v1 kind: Pod metadata: name: red namespace: default spec: containers:
  • command:
    • sh
    • -c
    • echo The app is running! && sleep 3600 image: busybox:1.28 name: red-container initContainers:
  • image: busybox name: red-initcontainer command:
    • “sleep”
    • “20” ```
• Get a pod definition file:

  kubectl get pod orange -o yaml > /root/orange.yaml
  

• Identify the pods that have an initContainer by using the kubectl describe command.
• To describe all pods, just run:

  kubectl describe pod
  

• Check the State also via the describe command.
• To check the amount of initContainers, there is no counter, just check the amount of containers listed via the kubectl describe pod command.
• Can have multiple initContainers chained to sleep for 30 seconds for container 1 and then for 60 seconds for container 2.