2018-01-30 15:51:25 +00:00
|
|
|
# kubectl
|
|
|
|
|
|
|
|
> Command line interface for running commands against Kubernetes clusters.
|
2019-08-16 10:23:03 +01:00
|
|
|
> More information: <https://kubernetes.io/docs/reference/kubectl/>.
|
2018-01-30 15:51:25 +00:00
|
|
|
|
2019-08-16 10:23:03 +01:00
|
|
|
- List all information about a resource with more details:
|
2018-01-30 15:51:25 +00:00
|
|
|
|
2019-08-16 10:23:03 +01:00
|
|
|
`kubectl get {{pod|service|deployment|ingress|...}} -o wide`
|
2018-01-30 15:51:25 +00:00
|
|
|
|
|
|
|
- Update specified pod with the label 'unhealthy' and the value 'true':
|
|
|
|
|
|
|
|
`kubectl label pods {{name}} unhealthy=true`
|
|
|
|
|
|
|
|
- List all resources with different types:
|
|
|
|
|
|
|
|
`kubectl get all`
|
|
|
|
|
2019-08-16 10:23:03 +01:00
|
|
|
- Display resource (CPU/Memory/Storage) usage of nodes or pods:
|
2018-01-30 15:51:25 +00:00
|
|
|
|
2019-08-16 10:23:03 +01:00
|
|
|
`kubectl top {{pod|node}}`
|
2018-01-30 15:51:25 +00:00
|
|
|
|
|
|
|
- Print the address of the master and cluster services:
|
|
|
|
|
|
|
|
`kubectl cluster-info`
|
2019-05-26 17:57:16 +01:00
|
|
|
|
2019-08-16 10:23:03 +01:00
|
|
|
- Display an explanation of a specific field:
|
|
|
|
|
|
|
|
`kubectl explain {{pods.spec.containers}}`
|
|
|
|
|
|
|
|
- Print the logs for a container in a pod or specified resource:
|
|
|
|
|
|
|
|
`kubectl logs {{pod_name}}`
|
|
|
|
|
|
|
|
- Run command in an existing pod:
|
2019-05-26 17:57:16 +01:00
|
|
|
|
2019-08-16 10:23:03 +01:00
|
|
|
`kubectl exec {{pod_name}} -- {{ls /}}`
|