Gregg's MOTD

Kubernetes Cheatsheet

The get parameter is a powerful way of discovering your kubenetes resources. You can use it to query: * namespace * pod * node * deployment * service * replicasets

$ kubectl get nodes
$ kubectl get ns # ns is an abreviation for namespace
$ kubectl get pods -n kube-system

The create command can do just that for:

• service
• cronjob
• deployment
• job
• namespace (or ns)

$ kubectl create ns hello-world
$ kubectl create cronjob my-cronjob --image=alpine --schedule="*/15 * * * *" -- echo "hi there"

You can also use cj as an abreviation for cronjob

$ kubectl create cj my-cronjob --image=alpine --schedule="*/15 * * * *" -- echo "hi there"

The edit parameter allows you to update resources:

$ kubectr edit my-cronjob

The delete parameter allows you to remove resources:

$ kubectl delete cronjob my-cronjob

The apply parameter allows you to apply configurations from files

$ kubectl apply -f jenkins.yaml

The describe parameter provides details of your resources which could be:

• nodes
• pods
• services
• deployments
• replicasets
• cronjobs

$ kubectl describe cronjob my-cronjob

The logs parameter displays the contents of the resource’s log:

$ kubectl logs my-resource -n charts

The exec parameter allows you to exec into a container:

$ kubectl exec -it my-resource -n charts -- /bin/bash

The cp parameter lets you copy files and directories to and from containers:

$ kubectl cp file1.txt my-resource:file1.txt

Tags: cli, kubernetes, cheatsheet, motd

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Tags: cli, vim, cheatsheet, shortcuts, motd