kubernetes cluster service
| 服务 | 入口 | 参数 |
|---|---|---|
| docker | ENTRYPOINT | CMD |
| docker-compose | entrypoint | command |
| kubernetes | command | args |
- 通过清单创建和删除
kubectl create -f /path/to/template.yaml
kubectl delete -f /path/to/template.yaml
- Pod
kubectl get pods -n namespace -o wide
kubectl delete pods PODNAME -n namespace
kubectl describe pods PODNAME -n namespace
kubectl logs PODNAME -n namespace
docker exec -it {container-id} /bin/bash
- Ingress
kubectl get ingress --all-namespaces
- Resource
kubectl api-resources
kubectl api-resources --namespaced=true
kubectl explain service --recursive
- 节点标签
kubectl get node --show-labels=true
kubectl label nodes <node_name> key1=val1 key2=val2 # add
kubectl label nodes <node_name> key1- key2- # delete
- 污点和容忍度
kubectl get nodes -o json | jq '.items[].spec.taints'
# effect:NoSchedule | PreferNoSchedule | NoExecute
kubectl taint node <node-name> key=value:<effect> # add
kubectl taint node <node-name> key- # delete
kubectl taint node <node-name> key:<effect>- # delete
- ConfigMap
kubectl create configmap <map-name> --from-file=/path/to/file
kubectl describe configmaps <map-name>
kubectl get configmaps <map-name> -o yaml
- 证书管理
kubeadm alpha certs check-expiration
- 端口转发（临时调试）
kubectl port-forward --address 0.0.0.0 -n <namespace> <pod-name> <port>:<port>