【K8s笔记】kubernetes的相关命令

这是一些常见的kubectl和docker命令

other

• kubectl get nodes
• kubectl get namespaces
• kubectl delete all --all - 注意，使用这个命令的时候，kubernetes服务也会被删除，但是会自动重新创建
• kubectl apply -f {YAML}
• kubectl delete -f {YAML}

pod

• kubectl get pods
• kubectl describe pod {POD}
• kubectl delete pod {POD}
• kubectl run {POD} --image={IMAGE}
• kubectl get pods -o wide
• kubectl exec {POD} -- {COMMAND}

deployment

• kubectl get deployments / kubectl get deploy
• kubectl create deployment {DEPLOYMENT} --image={IMAGE} --replicas=n
• kubectl describe deployment {DEPLOYMENT}
• kubectl delete deployment {DEPLOYMENT}
• kubectl scale deployment {DEPLOYMENT} --replicas=n
• kubectl delete deployment {DEPLOYMENT}
• kubectl set image deployment {DEPLOYMENT} {DEPLOYMENT}={NEW_IMAGE}
• kubectl rollout status deployment {DEPLOYMENT}

Service

• kubectl get services / kubectl get svc
• kubectl describe service {SERVICE}
• kubectl delete service {SERVICE}
• kubectl expose deployment {DEPLOYMENT} --port={OUTER_PORT} --target-port={INNER_PORT} - expose这里就会自动映射随机pod了
• kubectl expose deployment {DEPLOYMENT} --type=NodePort --port={INNER_PORT}
• kubectl expose deploy {DEPLOYMENT} --type=LoadBalancer --port={INNER_PORT}

docker

• docker ps
• docker exec -it {DOCKER} sh