Pack Operator

Pack Operator is a Kubernetes operator. It manage several CRDs such as Pack, SecretReflector, ... PO main responsibility is to manage lifecycle of helm chart installation in cluster.

helm upgrade --install pack-operator -n pack-operator --create-namespace kubit-packs/pack-operator

Create a Pack and apply it in the cluster, the operator will helm install/upgrade it

TODO: complete this section

TODO: complete this section

When a Pack/Deployment/StatefulSet have pack-operator.k8s.kubit.ir/watch-to-redeploy annotation, pack-operator watch given ConfigMap/Secret for modification and re-deploy the workload after a short time.

pack-operator.k8s.kubit.ir/watch-to-redeploy annotation syntax is simple as a list of comma-seperated or whitespace-seperated resource/name segments which resource is one of (configmap, secret) and name is name of whatched resource in same namespace. eg: configmap/cm-1, secret/sec-2, secret/tls-secret. Invalid syntax will rejected

If following ConfigMap exists in cluster

apiVersion: v1
kind: ConfigMap
metadata:
  name: test-cm-1
  namespace: default
data:
  var1: tt
  var2: xx

To redeploy test deployment when test-cm-1 configmap changed, just add pack-operator.k8s.kubit.ir/watch-to-redeploy: configmap/test-cm-1 to it it like below.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: test
  namespace: default
  annotations:
    pack-operator.k8s.kubit.ir/watch-to-redeploy: configmap/test-cm-1
spec:
  selector:
    app: test
  template:
    metadata:
      labels:
        app: test
    spec:
      containers:
        - name: test
          image: nginx

To redeploy only web deployment workload ( created via genpack ) when test-cm-1 configmap changed, just add pack-operator.k8s.kubit.ir/watch-to-redeploy: configmap/test-cm-1 to it like below.

apiVersion: k8s.kubit.ir/v1alpha1
kind: Pack
metadata:
  name: test
  namespace: default
spec:
  chart:
    repository:
      kind: ClusterPackRepository
      name: kubit-packs
    name: genpack
    version: ~=0.1
  values:
    gonbad:
      workloads:
        web:
          kind: deployment
          replicaCount: 1
            annotations:
              pack-operator.k8s.kubit.ir/watch-to-redeploy: configmap/test-cm-1
          containers:
            web:
              image:
                repository: nginx
        worker:
          kind: deployment
          replicaCount: 2
          containers:
            web:
              image:
                repository: nginx