init_containers_migrations_deploy.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: init-container-migrations
spec:
  revisionHistoryLimit: 0
  selector:
    matchLabels:
      app: init-container-migrations
  replicas: 5
  template:
    metadata:
      labels:
        app: init-container-migrations
        svc: example
    spec:
      serviceAccountName: job-read
      initContainers:
        - name: wait-for-migrations
          image: sikalabs/kubectl
          command:
            - "/bin/sh"
            - "-c"
            - "sleep 2 && kubectl wait --for=condition=complete --timeout=600s job/sleep20s"
      containers:
        - name: main
          image: ondrejsika/training-example
          ports:
            - containerPort: 80
          resources:
            requests:
              memory: 10Mi
              cpu: 10m
            limits:
              memory: 100Mi
              cpu: 20m
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: job-read
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: job-read
rules:
  - apiGroups: ["batch"]
    resources: ["jobs"]
    resourceNames: ["sleep20s"]
    verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: job-read
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: job-read
subjects:
  - kind: ServiceAccount
    name: job-read