container_aria

my file learn about tech container (docker, podman, kubernetes)

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annotation

• mirip dengan label, hanya saja tidak dapat di filter seperti label
  • biasanya digunakan untuk menambahkan informasi tambahan dalam ukuran besar
  • annotation bisa menampung informasi sampai 256k

configuration

• template

  apiVersion: v1
  kind: Pod
  metadata:
    name: pod-name
    labels:
      label-key1: label-value1
    annotations:
      annotation-key1: annotation-value
      annotation-key2: veri long annotation value, bla bla bla bla bla bla
  spec:
    containers:
      - name: container-name
        image: image-name
        ports:
          - containerPort: 80
  

• example

  apiVersion: v1
  kind: Pod
  metadata:
    name: nginx-with-annotation
    labels:
      team: production
      version: 1.0.1
      environment: production
    annotations:
      description: ini adalah aplikasi yang dibuat oleh tim production
      apapun: apapaun itu...
  spec:
    containers:
      - name: nginx
        image: nginx
        ports:
          - containerPort: 80
  

command

show

kubectl get pods
kubectl describe pod nginx-with-annotation

menambahakan annotation

kubectl annotate pod <namapod> key=value
kubectl annotate pod <namapod> key=value --overwrite