teach_0818/Kubernetes_0509 at main · devopstrainer1/teach_0818 · GitHub

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## yaml file using shuf
apiVersion: v1
kind: Pod
metadata:
  name: random
spec:
  containers:
    - name: alpine
      image: alpine
      command: ["/bin/sh", "-c"]
      args: ["shuf -i 0-100 -n 1 >> /opt/num.out; sleep 200;"]

## yaml file using volume mount

apiVersion: v1
kind: Pod
metadata:
  name: random
spec:
  containers:
    - name: alpine
      image: alpine
      command: ["/bin/sh", "-c"]
      args: ["shuf -i 0-100 -n 1 >> /opt/num.out; sleep 200;"]
      volumeMounts:
        - name: external-vol
          mountPath: /opt
  volumes:
    - name: external-vol
      hostPath:
        path: /tmp
        type: Directory

## invoking aws vault secret

apiVersion: secrets-store.csi.x-k8s.io/v1
kind: SecretProviderClass
metadata:
  name: azure-secret
spec:
  provider: azure
  parameters:
    userAssignedIdentityID: ""
    keyvaultName: ""
    objects: |
      array:
        - |
          objectName: db-amit
          objectType: secret

# invoking locally created secret

apiVersion: v1
kind: Pod
metadata:
  name: database
spec:
  containers:
    - name: mysql
      image: mysql
      env:
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: rashmi
              key: password
        - name: MYSQL_ROOT_USERNAME
          value: admin


### kubernetes commands

kubectl apply -f a.yml
  506  kubectl get pods
  507  kubectl exec random -- cat /opt/num.out
  508  kubectl delete pod random
  509  cp a.yml b.yml
  510  vi b.yml
  511  car b.yml
  512  cat b.yml
  513  kubectl apply -f b.yml
  514  kubectl get pods
  515  kubectl exec random -- cat /opt/num.out
  516  kubectl delete pod random
  517  kubectl apply -f b.yml
  518  kubectl exec random -- cat /opt/num.out
  519  clear
  520  kubectl run mysql --image mysql --env MYSQL_ROOT_PASSWORD=amit
  521  kubectl get pods
  522  kubectl get secrets
  523  clear
  524  kubectl create secret generic rashmi --from-literal password=edureka
  525  kubectl get secret
  526  kubectl get secret -o yaml rashmi
  527  kubectl edit secret rashmi
  528  clear
  529  sudo vi secret.yaml
  530  kubectl apply -f secret.yaml
  531  kubectl get pods
  532  kubectl edit secret rashmi
  533  vi c.yml
  534  helm
  535  helm repo list
  536  helm repo add bitnami https://charts.bitnami.com/bitnami
  537  helm repo update
  538  helm search nginx
  539  helm search repo nginx
  540  helm pull bitnami/nginx
  541  ls -lrt
  542  helm pull --untar bitnami/nginx
  543  ls -lrt
  544  cd nginx
  545  ls
  546  cat Chart.yaml
  547  ls
  548  cd templates/
  549  ls
  550  vi deployment.yaml
  551  cd ..
  552  ls
  553  vi values.yaml
  554  cd ..
  555  ls
  556  vi nginx.yml
  557  helm install gururaj bitnami/nginx -f nginx.yml --dry-run
  558  gcloud auth login
  559  helm install gururaj bitnami/nginx -f nginx.yml --dry-run
  560  helm install gururaj bitnami/nginx -f nginx.yml
  561  helm list
  562  kubectl get all
  563  helm uninstall gururaj