gistfile1.yaml

# kubectl
cd /usr/local/bin/
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
chmod +x kubectl
cd -


#kind
curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.14.0/kind-linux-amd64
chmod +x ./kind
sudo mv ./kind /usr/local/bin/kind

#cluster kind

cat << EOF > $HOME/kind-cluster.yaml
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
  - role: worker
  - role: worker
  - role: worker
EOF


kind create cluster --name cluster-kind --config $HOME/kind-cluster.yaml
kubectl get nodes

-------

## DAY 2


apiVersion: v1
kind: Pod
metadata:
  name: nginx-giropops
  labels:
    run: nginx-giropops
    app: giropops-strigus
spec:
  containers:   
  - image: nginx
    name: nginx-giropops
    ports:
    - containerPort: 80
    resources:
      requests:
        cpu: "0.3"
        memory: "128Mi"
      limits:
        cpu: "0.5"
        memory: "400Mi"


---

## DAY 3

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: nginx-girus
    opa: sensacional-juvenal
  name: nginx-girus
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx-girus
  strategy: 
    type: Recreate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: nginx-girus
    spec:
      containers:
      - image: nginx:1.16.0
        name: nginx-girus
        resources:
          requests:
            cpu: 0.5
            memory: 64Mi
          limits:
            cpu: 0.7
            memory: 128Mi


## Volume + Rolling Update

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: nome-deploy
  name: nome-deploy
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nome-deploy
  strategy: 
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 2
      maxUnavailable: 2
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: nome-deploy
    spec:
      containers:
      - image: nginx:1.16.0
        name: nome-deploy
        volumeMounts:
        - mountPath: /data
          name: nome-volume
        resources:
          requests:
            cpu: 0.5
            memory: 64Mi
          limits:
            cpu: 0.7
            memory: 128Mi
      volumes:
      - name: nome-volume
        emptyDir:
          sizeLimit: 256Mi

Scale a deployment “test” to 3 replicas:

kubectl scale deploy/test --replicas=3

Watch update status for deployment “test”:

kubectl rollout status deploy/test

Pause deployment on “test”:

kubectl rollout pause deploy/test

Resume deployment on “test”:

kubectl rollout resume deploy/test

View rollout history on “test”:

kubectl rollout history deploy/test

Undo most recent update on “test”:

kubectl rollout undo deploy/test

Rollback to specific revision on “test”:

kubectl rollout undo deploy/test --to-revision=1