init-container-test-0.yaml

# Kubelet runs the Pod's init containers in the order they appear in the Pod's spec.

apiVersion: v1
kind: Pod
metadata:
  name: order
spec:
  volumes:
    - name: test-vol
      emptyDir: {}
  containers:
  - image: busybox:1.28
    name: main-container
    command: 
    - sh
    - -c
    - echo -n "Testing to check sequential order and timing of Init-containers" > /tmp/main.log && \
      date >> /tmp/main.log; sleep 4500;
    volumeMounts:
      - name: test-vol
        mountPath: /tmp/
  initContainers:
  - image: alpine
    name: alpha-1
    command: 
    - sh
    - -c
    args:
    - date > /tmp/alpha-1.log;sleep 5;
    volumeMounts:
      - name: test-vol
        mountPath: /tmp/
  - image: busybox:1.28
    name: alpha-2
    command:
    - sh
    - -c
    args:
    - date > /tmp/alpha-2.log;sleep 5;
    volumeMounts:
      - name: test-vol
        mountPath: /tmp/
  - image: busybox:1.28
    name: alpha-3
    command:
    - sh
    - -c
    args:
    - date > /tmp/alpha-3.log; sleep 5;
    volumeMounts:
      - name: test-vol
        mountPath: /tmp/