49 lines
1.5 KiB
Markdown
49 lines
1.5 KiB
Markdown
---
|
|
title: CheatSheet K8s
|
|
updated: 2022-02-05 17:47:17Z
|
|
created: 2022-02-05 15:06:57Z
|
|
latitude: 51.86290000
|
|
longitude: 4.61910000
|
|
altitude: 0.0000
|
|
---
|
|
|
|
## minikube
|
|
`minikube start | status | stop | delete | pause | unpause | dashboard`
|
|
|
|
## Crud commands kubectl
|
|
`kubectl create deployment [name]`
|
|
`kubectl create deployment nginx-depl --image=nginx`
|
|
`kubectl edit deployment [name]`
|
|
`kubectl edit deployment nginx-depl`
|
|
`kubectl delete deployment [name]`
|
|
|
|
## Use configuration file for CRUD
|
|
`kubectl apply -f [file name]`
|
|
`kubectl delete -f [file name]`
|
|
|
|
## Status of different K8s components
|
|
`kubectl get nodes | pod | service | replicaset | deployment | all`
|
|
`kubectl get pod -o wide` More columns with info
|
|
`kubectl get deployment [name] -o yaml` current in yaml format (useful for debugging)
|
|
|
|
## Debugging pods
|
|
`kuberctl logs [pod name]`
|
|
`kubectl logs nginx-depl-{pod-name}`
|
|
|
|
`kubectl exec -it [pod name] -- bin/bash`
|
|
`kuberctl describe pod [pod name]`
|
|
`kuberctl describe pod nginx-depl-{pod name}`
|
|
|
|
## Configuration file Deployment & Service
|
|
Each configuration file has 3 parts
|
|
1. metadata
|
|
2. specification
|
|
3. status (automatic generated)
|
|
- desired state
|
|
- Actual state
|
|
- Both have to match. If not K8s knows something has to be fixed
|
|
- status is updated continues
|
|
- etcd is providing the info for status
|
|
|
|
|
|
 |