443 lines
7.7 KiB
Markdown
443 lines
7.7 KiB
Markdown
# Cheatsheet kubernetes
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**Índice**
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- [Cheatsheet kubernetes](#cheatsheet-kubernetes)
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- [Resumen en una imagen](#resumen-en-una-imagen)
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- [Visualizar información de los recursos](#visualizar-información-de-los-recursos)
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- [Nodes](#nodes)
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- [ods](#ods)
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- [Namespaces](#namespaces)
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- [Deployments](#deployments)
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- [Services](#services)
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- [DaemonSets](#daemonsets)
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- [Events](#events)
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- [Logs](#logs)
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- [Service Accounts](#service-accounts)
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- [ReplicaSets](#replicasets)
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- [Roles](#roles)
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- [Secrets](#secrets)
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- [ConfigMaps](#configmaps)
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- [Ingress](#ingress)
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- [PersistentVolume](#persistentvolume)
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- [PersistentVolumeClaim](#persistentvolumeclaim)
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- [StorageClass](#storageclass)
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- [MultipleResources](#multipleresources)
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- [Modificar atributos de los recursos](#modificar-atributos-de-los-recursos)
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- [Taint](#taint)
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- [Labels](#labels)
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- [Cordon/Uncordon](#cordonuncordon)
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- [Drain](#drain)
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- [Nodes/Pods](#nodespods)
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- [Deployments/Namespaces](#deploymentsnamespaces)
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- [Services](#services-1)
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- [DaemonSets](#daemonsets-1)
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- [ServiceAccounts](#serviceaccounts)
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- [Annotate](#annotate)
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- [Añadir recursos](#añadir-recursos)
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- [Crear Pod](#crear-pod)
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- [Crear un Service](#crear-un-service)
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- [Crear Deployment](#crear-deployment)
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- [Interactive Pod](#interactive-pod)
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- [Salida de YAMLto en un fichero](#salida-de-yamlto-en-un-fichero)
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- [Ayuda](#ayuda)
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- [Solicitaciones](#solicitaciones)
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- [Llamar a la API](#llamar-a-la-api)
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- [Información del Cluster](#información-del-cluster)
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## Resumen en una imagen
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[Descarga PNG](../img/kubernetes-cheat-sheet.png)
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## Visualizar información de los recursos
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### Nodes
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```shell
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kubectl get no
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```
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```shell
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kubectl get no -o wide
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```
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```shell
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kubectl describe no
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```
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```shell
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kubectl get no -o yaml
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```
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```shell
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kubectl get node –select or =[ label _name]
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```
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```shell
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kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type==”ExternalIP”)].address}’
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```
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```shell
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kubectl top node [node_name]
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```
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### ods
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```shell
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kubectl get po
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```
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```shell
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kubectl get po -o wide
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```
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```shell
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kubectl describe po
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```
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```shell
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kubectl get po –show-labels
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```
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```shell
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kubectl get po -l app=nginx
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```
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```shell
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kubectl get po -o yaml
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```
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```shell
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kubect l get pod [ pod_name] -o yaml –export
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```
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```shell
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kubect l get pod [pod_name] -o yaml –export > nameoffile.yaml
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```
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```shell
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kubectl get pods –field-selector status.phase=Running
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```
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### Namespaces
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```shell
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kubectl get ns
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```
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```shell
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kubectl get ns -o yaml
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```
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```shell
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kubectl describe ns
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```
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### Deployments
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```shell
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kubectl get deploy
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```
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```shell
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kubectl describe deploy
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```
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```shell
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kubectl get deploy -o wide
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```
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```shell
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kubectl get deploy -o yam
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```
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### Services
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```shell
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kubectl get svc
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```
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```shell
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kubectl describe svc
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```
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```shell
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kubectl get svc -o wide
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```
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```shell
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kubectl get svc -o yaml
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```
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```shell
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kubectl get svc –show-labels
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```
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### DaemonSets
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```shell
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kubectl get ds
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```
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```shell
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kubectl get ds –all-namespaces
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```
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```shell
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kubectl describe ds [daemonset _name] -n [namespace_name]
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```
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```shell
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kubectl get ds [ds_name] -n [ns_name] -o yaml
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```
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### Events
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```shell
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kubectl get events
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```
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```shell
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kubectl get events -n kube-system
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```
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```shell
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kubectl get events -w
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```
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### Logs
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```shell
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kubectl logs [pod_name]
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```
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```shell
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kubectl logs –since=1h [pod_name]
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```
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```shell
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kubectl logs –tail =20 [pod_name]
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```
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```shell
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kubectl logs -f -c [container_name] [pod_name]
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```
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```shell
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kubectl logs [pod_name] > pod.log
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```
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### Service Accounts
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```shell
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kubectl get sa
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```
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```shell
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kubectl get sa -o yaml
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```
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```shell
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kubectl get serviceaccounts default -o yaml > ./sa.yaml
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```
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```shell
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kubectl replace serviceaccount default -f. /sa.yaml
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```
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### ReplicaSets
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```shell
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kubectl get rs
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```
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```shell
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kubectl describe rs
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```
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```shell
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kubectl get rs -o wide
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```
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```shell
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kubectl get rs -o yaml
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```
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### Roles
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```shell
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kubectl get roles –all-namespaces
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```
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```shell
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kubectl get roles –all-namespaces -o yaml
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```
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### Secrets
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```shell
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kubectl get secrets
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```
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```shell
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kubectl get secrets –all-namespaces
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```
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```shell
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kubectl get secrets -o yaml
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```
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### ConfigMaps
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```shell
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kubectl get cm
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```
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```shell
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kubectl get cm –all-namespaces
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```
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```shell
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kubectl get cm –all-namespaces -o yaml
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```
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### Ingress
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```shell
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kubectl get ing
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```
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```shell
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kubectl get ing –all-namespaces
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```
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### PersistentVolume
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```shell
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kubectl get pv
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```
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```shell
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kubectl describe pv
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```
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### PersistentVolumeClaim
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```shell
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kubectl get pvc
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```
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```shell
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kubectl describe pvc
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```
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### StorageClass
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```shell
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kubectl get sc
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```
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```shell
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kubectl get sc -o yaml
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```
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### MultipleResources
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```shell
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kubectl get svc, po
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```
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```shell
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kubectl get deploy, no
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```
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```shell
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kubectl get all
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```
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```shell
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kubectl get all –all-namespaces
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```
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## Modificar atributos de los recursos
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### Taint
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```shell
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kubectl taint [node_name] [taint _name]
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```
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### Labels
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```shell
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kubectl label [node_name] disktype=ssd
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```
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```shell
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kubrectl label [pod_name] env=prod
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```
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### Cordon/Uncordon
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```shell
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kubectl cordon [node_name]
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```
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```shell
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kubectl uncordon [node_name]
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```
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### Drain
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```shell
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kubectl drain [node_name]
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```
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### Nodes/Pods
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```shell
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kubectl delete node [node_name]
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```
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```shell
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kubectl delete pod [pod_name]
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```
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```shell
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kubectl edit node [node_name]
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```
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```shell
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kubectl edit pod [pod_name]
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```
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### Deployments/Namespaces
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```shell
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kubectl edit deploy [deploy_name]
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```
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```shell
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kubectl delete deploy [deploy_name]
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```
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```shell
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kubectl expose deploy [depl oy_name] –port=80 –type=NodePort
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```
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```shell
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kubectl scale deploy [deploy_name] –replicas=5
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```
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```shell
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kubectl delete ns
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```
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```shell
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kubectl edit ns [ns_name]
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```
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### Services
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```shell
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kubectl edit svc [svc_name]
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```
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```shell
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kubectl delete svc [svc_name]
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```
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### DaemonSets
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```shell
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kubectl edit ds [ds_name] -n kube-system
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```
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```shell
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kubectl delete ds [ds_name]
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```
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### ServiceAccounts
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```shell
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kubectl edit sa [sa_name]
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```
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```shell
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kubectl delete sa [sa_name]
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```
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### Annotate
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```shell
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kubectl annotate po [pod_name] [annotation]
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```
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```shell
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kubectl annotate no [node_name]
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```
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## Añadir recursos
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### Crear Pod
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```shell
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kubectl create -f [name_of _file]
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```
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```shell
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kubectl apply -f [name_of _file]
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```
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```shell
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kubectl run [pod_name] –image=ngi nx –restart=Never
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```
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```shell
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kubectl run [ pod_name] –generator =run-pod/v1 –image=nginx
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```
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```shell
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kubectl run [ pod_name] –image=nginx –restart=Never
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```
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### Crear un Service
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```shell
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kubectl create svc nodeport [svc_name] –tcp=8080:80
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```
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### Crear Deployment
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```shell
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kubectl create -f [name_of _file]
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```
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```shell
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kubectl apply -f [name_of _file]
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```
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```shell
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kubectl create deploy [deploy_name] –image=ngi nx
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```
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### Interactive Pod
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```shell
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kubectl run [pod_name] –image=busybox –rm -it –restart=Never — sh
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```
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### Salida de YAMLto en un fichero
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```shell
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kubectl create deploy [deploy_name] –image=ngi nx –dry-run -o yaml > deploy.yaml
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```
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```shell
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kubectl get po [pod_name] -o yaml –export > pod. yaml
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```
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### Ayuda
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```shell
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kubectl -h
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```
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```shell
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kubectl create -h
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```
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```shell
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kubectl run -h
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```
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```shell
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kubectl explain deploy.spec
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```
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## Solicitaciones
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### Llamar a la API
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```shell
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kubectl get –raw /apis/metrics.k8s.io/
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```
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### Información del Cluster
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```shell
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kubectl config
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```
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```shell
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kubectl cluster -info
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```
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```shell
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kubectl get componentstatuses
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```
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---
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Puedes seguir con la guía [05 Helm: Control de despliegues en Kubernetes](05-helm.md).
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Todas las guías:
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- [01 Instalación kubctl](01-kubectl.md)
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- [02 Clústers](02-clusters.md)
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- [03 manifiestos](03-manifiestos.md)
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- [04 Cheatsheet kubernetes](04-cheatsheet.md)
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- [05 Helm: Control de despliegues en Kubernetes](05-helm.md)
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- [06 K9s: Otro estilo de CLI para k8s](06-k9s.md) |