Bài viết được mình sưu tầm với mục đích chia sẻ kiến thức cho mọi người, và không nhằm mục đích thương mại. Vì bài viết có nhiều từ tiếng anh chuyên môn nên mình sẽ để nguyên văn của tác giả để mọi người có thể hiểu dễ hơn.
Cluster Management
Display endpoint details for the cluster’s master and services.
kubectl cluster-info
Show the Kubernetes version that is active on
the server and client
kubectl version
Get the cluster’s configuration
kubectl config view
List the available API resources
kubectl api-resources
List everything
kubectl get all --all-namespaces
Node Management
List the nodes
kubectl get node
Update the taints on nodes
kubectl taint node <node_name>
Delete a node
kubectl delete node <node_name>
Pod Management
List pods
kubectl get pod
Delete a pod
kubectl delete pod <pod_name>
See detailed state of a pods
kubectl describe pod <pod_name>
Create a pod
kubectl create pod <pod_name>
Run a command for a container inside a pod
kubectl exec <pod_name> -c <container_name> <command>
Get interactive shell on a pod
kubectl exec -it <pod_name> /bin/sh
See resource usage (CPU/Memory/Storage) for pods
kubectl top pod
Add/update the annotations of a pod
kubectl annotate pod <pod_name> <annotation>
Add/update the label of a pod
kubectl label pod <pod_name>
Replication Controllers
View the list of replication controllers
kubectl get rc
View the list of replication controllers by namespace
kubectl get rc --namespace="<namespace_name>"
Scale a ReplicaSet
kubectl scale --replicas=<expected_replica_num> replicaset <name>
Deployment Management
List the deployments
kubectl get deployment
Show the precise status of single or multiple deployments.
kubectl describe deployment <deployment_name>
Edit and update the deployment.
kubectl edit deployment <deployment_name>
Create a new deployment
kubectl create deployment <deployment_name>
Delete a deployment
kubectl delete deployment <deployment_name>
Check the rollout status of a deployment
kubectl rollout status deployment <deployment_name>
Display Resource usage (CPU/Memory/Storage) for nodes
kubectl top node
See resource allocation per node
kubectl describe nodes | grep Allocated -A 5
List the pods running on a node
kubectl get pods -o wide | grep <node_name>
To annotate a node
kubectl annotate node <node_name>
Add or update the labels of a node
kubectl label nodes <your-node-name> <label>
Scale a Deployment
kubectl scale deployment <deployment-name> --replicas=<number-of-replicas>
Secrets
Create a secret
kubectl create secret <name>
List secrets
kubectl get secrets
View details about secrets
kubectl describe secrets <name>
Delete a secret
kubectl delete secret <secret_name>
Services
List the services
kubectl get services
View the detailed state of a service
kubectl describe services <name>
Expose a replication controller, deployment or pod as a new Kubernetes service
kubectl expose deployment [deployment_name]
Edit/update the definition of a service
kubectl edit service <name>
Common Options
Commands in Kubectl can include optional flags.
Here are a few examples of the most popular and helpful ones.
–o Format of output. (Suppose you wanted to list all of the pods in ps output format with additional information.)
kubectl get pods -o wide
Create any resource(pod/replicaset/deployment, etc) using a yaml/json file.
kubectl apply -f <xyz.yaml>
Nội dung tham khảo
Nội dung bài viết này được mình tìm hiểu, tham khảo, đúc kết và tổng hợp lại từ nhiều nguồn. Mọi người có thể xem thêm các bài viết sau:
- K21Academy - KUBERNETES CHEATSHEET
