Docker&Kubernetes practice (9-Apr-23) (1).txt

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apiVersion: v1

kind: ReplicationController

metadata:

  name: ey-rc

spec:

  replicas: 10

  selector:

    org: ey

  template:

    metadata:

      name: ey-pod-rc

      labels:

        org: ey

    spec:

      containers:

      - name: my-container

        image: nginx

        ports:

        - containerPort: 80


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[10:06] Pankaj (Guest)
YAML for Replication Controller


176  vi replication-controller.yml
  177  kubectl create -f replication-controller.yml
  178  kubectl get pods
  179  od   1/1     Running             0          15m
  180  clear
  181  kubectl get pods
  182  kubectl get rc
  183  kubectl describe rc ey-rc
  184  clear
  185  kubectl get pods
  186  kubectl get rc
  187  kubectl delete pods --all
  188  kuebctl get pods
  189  kubectl get pods
  190  clear
  191  kubectl get pods
  192  kubectl get rc
  193  kubectl delete pods --all
  194  kubectl get rc
  195  kubectl get pods
  196  clear
  197  kubectl get pods
  198  kubectl get rc
  199  kubectl delete rc ey-rc
  200  kubectl get pods
  201  kubectl get rc


Five Minutes Hands on 

Replication Controller 

Replication Controller


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apiVersion: apps/v1
kind: Deployment
metadata:
  name: ey-deployment
  labels:
    team: devops
spec:
  replicas: 5
  selector:
    matchLabels:
      team: devops
  template:
    metadata:
      labels:
        team: devops
    spec:
      containers:
      - name: any-container
        image: nginx
        ports:
        - containerPort: 80

************************************************

  212  vi ey-deployment.yml

  213  kubectl api-resources | less

  214  vi ey-deployment.yml

  215  clear

  216  kubectl get pods

  217  clear

  218  kubectl get all

  219  ls

  220  kubectl create -f ey-deployment.yml

  221  kubectl get all

  222  clear

  223  kubectl get all

  224  kubectl delete pods --all

  225  kubectl get all

  226  clear

  227  kubectl get all

  228  kubectl delete rs ey-deployment-64dcfc4859

  229  kuebctl get all

  230  kubectl get all

  231  clear

  232  kubectl get all

  233  kubectl delete deploy ey-deployment

  234  kuebctl get all

  235  clear

  236  kubectl get all

  237  kubectl create -f ey-deployment.yml

  238  kubectl get all

  239  kubectl describe deploy ey-deployment

  240  clear

  241  kubectl get pods -o wide


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  255  kubectl scale deployment ey-deployment --replicas=25
  256  kubectl get all
  257  clear
  258  kubectl get all
  259  clear
  260  kubectl get all
  261  clear
  262  kubectl scale deployment ey-deployment --replicas=1
  263  kubectl get all
  264  clear
  265  kubectl get all
  266  kubectl autoscale deploy ey-deployment --min=5 --max=50 --cpu-percent=80
  267  kubectl get all
  268  clear
  269  kubectl get all
  270  clear
  271  ls
  272  vi my-pod.yml
  273  clear
  274  kuebctl get pod
  275  clear
  276  kubectl get all
  277  kubectl scale deployment ey-deployment --replicas=1
  278  kubectl get all
  279  clear
  280  kubectl get all
  281  clear
  282  ls
  283  kubectl get deploy
  284  kubectl get all
  285  clear
  286  kubectl get pods -o wide
  287  kubectl get nodes
  288  kubectl describe node e-y-kubernetes-01
  289  clear
  290  kubectl get nodes
  291  kubectl describe node e-y-kubernetes-02
  292  kubectl describe node e-y-kubernetes-03
  293  kubectl describe node e-y-kubernetes-01
  294  clear
  295  ls
  296  vi  my-pod.yml
  297  clear
  298  kubectl describe deploy ey-deployment.yml
  299  kubectl describe deploy ey-deployment
  300  clear
  301  ls
  302  vi ey-deployment.yml
  303  kubectl apply -f  ey-deployment.yml
  304  kubectl get all
  305*
  306  kubectl get all
  307  kubectl delete horizontalpodautoscaler.autoscaling/ey-deployment
  308  clear
  309  kubectl get all
  310  vi ey-deployment.yml
  311  kubectl apply -f  ey-deployment.yml
  312  kubectl get all
  313  clear
  314  kubectl get all
  315  kubectl edit deploy ey-deployment
  316  kubectl get all
  317  ls
  318  vi ey-deployment.yml
  319  clear
  320  kubectl edit deploy ey-deployment
  321  kubectl get all

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YAMLs for three types of Services

apiVersion: v1
kind: Service
metadata:
  name: cip-service
spec:
  type: ClusterIP
  selector:
    team: devops
  ports:
    - name: http
      protocol: TCP
      port: 80
      targetPort: 80

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apiVersion: v1
kind: Service
metadata:
  name: nodeport-service
spec:
  type: NodePort
  selector:
    team: devops
  ports:
    - name: http
      protocol: TCP
      port: 80
      nodePort: 31000
# NodePort Range 30000 to 32767
      targetPort: 80

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apiVersion: v1
kind: Service
metadata:
  name: lb-service
spec:
  type: LoadBalancer
  externalIPs:
  - 143.110.253.132
  selector:
    team: devops
  ports:
    - name: http
      protocol: TCP
      port: 80
# NodePort Range 30000 to 32767
      targetPort: 80

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