// Aula 16 - Labels

https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/

# vim teste-prod-deployment.yaml

# teste-prod-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: teste-prod
  labels:
    ver: "1"
    app: teste
    env: prod
spec:
  replicas: 2
  selector:
    matchLabels:
      app: teste
  template:
    metadata:
      labels:
        app: teste
    spec:
      containers:
      - name: teste-prod
        image: gcr.io/kuar-demo/kuard-amd64:green
        ports:
        - containerPort: 80

# kubectl apply -f teste-prod-deployment.yaml

# vim teste-test-deployment.yaml

# teste-test-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: teste-test
  labels:
    ver: "2"
    app: teste
    env: test
spec:
  replicas: 2
  selector:
    matchLabels:
      app: teste
  template:
    metadata:
      labels:
        app: teste
    spec:
      containers:
      - name: teste-test
        image: gcr.io/kuar-demo/kuard-amd64:green
        ports:
        - containerPort: 80

# kubectl apply -f teste-test-deployment.yaml

# vim teste2-prod-deployment.yaml

# teste2-prod-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: teste2-prod
  labels:
    ver: "2"
    app: teste2
    env: prod
spec:
  replicas: 2
  selector:
    matchLabels:
      app: teste2
  template:
    metadata:
      labels:
        app: teste2
    spec:
      containers:
      - name: teste2
        image: gcr.io/kuar-demo/kuard-amd64:green
        ports:
        - containerPort: 80

# kubectl apply -f teste2-prod-deployment.yaml

# vim teste2-staging-deployment.yaml

# teste2-staging-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: teste2-staging
  labels:
    ver: "2"
    app: teste2
    env: staging
spec:
  replicas: 2
  selector:
    matchLabels:
      app: teste2
  template:
    metadata:
      labels:
        app: teste2
    spec:
      containers:
      - name: teste2
        image: gcr.io/kuar-demo/kuard-amd64:green
        ports:
        - containerPort: 80

# kubectl apply -f teste2-staging-deployment.yaml

# kubectl get deployments --show-labels

# kubectl label deployments teste-test "canary=true"

# kubectl get deployments --show-labels

# kubectl get deployments -L canary

# kubectl label deployments teste-test "canary-"

# kubectl get pods --show-labels

# kubectl get pods --selector="app=teste"

# kubectl get pods --selector="app in (teste, teste2)"

# kubectl get pods --selector="canary"

# kubectl get deployments --selector='!canary'

# kubectl get pods -l 'app=teste,!canary'

# kubectl delete deployments --selector='app=teste'

# kubectl get pods --show-labels

# kubectl delete deployments --all