teach_0818/Kubernetes_0309 at main · devopstrainer1/teach_0818 · GitHub

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###Kubernetes labels example
apiVersion: v1
kind: Pod
metadata:
  name: edureka1
  labels:
    app: abc
    teach: edureka
spec:
  containers:
    - name: amit
      image: httpd
      resources:
        limits:
          memory: "256Mi"
          cpu: "100m"

### Kubernetes namespace example

apiVersion: v1
kind: Pod
metadata:
  name: edureka3
  namespace: edureka
  labels:
    app: abc
    name: amit
    app: 123e
spec:
  containers:
    - name: amit
      image: httpd
      resources:
        limits:
          memory: "256Mi"
          cpu: "100m"


### Kubernetes deployment object creation example

apiVersion: apps/v1
kind: Deployment
metadata:
  name: abc123
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
        - name: amit
          image: httpd
          ports:
            - containerPort: 80


#### Kubernetes commands

kubectl get pods
  516  kubectl get pods --show-labels
  517  kubectl run pod2 --image httpd
  518  kubectl get pods --show-labels
  519  cat a.yml
  520  cp a.yml b.yml
  521  vi b.yml
  522  kubectl apply -f b.yml
  523  kubectl get pods --show-labels
  524  cp b.yml c.yml
  525  vi c.yml
  526  kubectl apply -f c.yml
  527  kubectl get pods --show-labels
  528  cat c.yml
  529  kubectl get pods --show-labels
  530  kubectl get pods -l app=abc
  531  kubectl get pods -l app=uytkjdaf
  532  kubectl get namespaces
  533  kubectl get pods -n
  534  kubectl get pods -A
  535  kubectl get namespaces
  536  kubectl get nodes --show-labels
  537  kubectl get nodes --show-labels | grep arc
  538  clear
  539  kubectl create namespace edureka
  540  kubectl get namespaces
  541  kubectl get pods
  542  sudo vi c.yml
  543  kubectl apply -f c.yml
  544  kubectl get pods
  545  kubectl get pods -n edureka
  546  clear
  547  kubectl get pods
  548  kubectl delete pod edureka2
  549  cat a.yml
  550  clear
  551  sl
  552  ls
  553  vi d.yml
  554  kubectl apply -f d.yml
  555  kubectl get all
  556  kubectl delete pod abc123-796df9cb7f-fpf92
  557  kubectl get all
  558  cat d.yml
  559  kubectl get pods --show-labels
  560  kubectl get all
  561  kubectl scale deployment abc123 --replicas=5
  562  kubectl get all
  563  cat d.yml
  564  kubectl get all
  565  kubectl scale deployment abc123 --replicas=2
  566  kubectl get all
  567  kubectl describe deployment abc123