Kubernetes Commands

Kubernetes Commands:

install hyperhit and minikube:
brew update
brew install hyperkit
brew install minikube
kubectl
minikube

create minikube cluster:
minikube start --vm-driver=hyperkit
kubectl get nodes
minikube status
kubectl version

delete cluster and restart in debug mode:
minikube delete
minikube start --vm-driver=hyperkit --v=7 --alsologtostderr
minikube status

kubectl commands:
kubectl get nodes
kubectl get pod
kubectl get services
kubectl create deployment nginx-depl --image=nginx
kubectl get deployment
kubectl get replicaset
kubectl edit deployment nginx-depl

debugging:
kubectl logs {pod-name}
kubectl exec -it {pod-name} -- bin/bash

create mongo deployment:
kubectl create deployment mongo-depl --image=mongo
kubectl logs mongo-depl-{pod-name}
kubectl describe pod mongo-depl-{pod-name}

delete deplyoment:
kubectl delete deployment mongo-depl
kubectl delete deployment nginx-depl

create or edit config file:
vim nginx-deployment.yaml
kubectl apply -f nginx-deployment.yaml
kubectl get pod
kubectl get deployment

delete with config:
kubectl delete -f nginx-deployment.yaml
#Metrics
kubectl top The kubectl top command returns current CPU and memory usage for a cluster’s pods or nodes, or for a particular pod or node if specified.

kubectl apply commands in order:
kubectl apply -f mongo-secret.yaml
kubectl apply -f mongo.yaml
kubectl apply -f mongo-configmap.yaml 
kubectl apply -f mongo-express.yaml

kubectl get commands:
kubectl get pod
kubectl get pod --watch
kubectl get pod -o wide
kubectl get service
kubectl get secret
kubectl get all | grep mongodb

kubectl debugging commands:
kubectl describe pod mongodb-deployment-xxxxxx
kubectl describe service mongodb-service
kubectl logs mongo-express-xxxxxx

give a URL to external service in minikube:
minikube service mongo-express-service