https://github.com/kadasz/kubectl-handy-cmd

My kubectl cheat sheet
https://github.com/kadasz/kubectl-handy-cmd

Last synced: 5 days ago
JSON representation

My kubectl cheat sheet

• Host: GitHub
• URL: https://github.com/kadasz/kubectl-handy-cmd
• Owner: kadasz
• Created: 2024-01-02T12:13:10.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-02-14T08:12:14.000Z (11 months ago)
• Last Synced: 2024-11-09T07:16:19.744Z (2 months ago)
• Size: 7.81 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# My kubectl cheat sheet

List of kubectl commands which I've found useful for on a daily basis because may come in handy for sure.

### To get IP addresses of pods

```

kubectl get pods -o custom-columns=IP:.status.podIP 

```

### To get Name and Images of pods

```

kubectl get pods -o custom-columns=Name:.metadata.name,Image:..spec.containers[*].image

```

### To get Name and Worker IP of pods

```

kubectl get pods -o custom-columns=Name:.metadata.name,WorkerIP:.status.hostIP

```

### To get a list of all pods without pods from openshift-* namespaces

```

kubectl get pods -A --field-selector=metadata.namespace!=openshift-* -o wide

```

### Rolling updates and Rollbacks 

```

kubectl create -f app-deployment.yml

kubectl get deployments

kubectl apply -f app-deployment.yml

kubectl set image deployment/app-deployment nginx=nginx:1.25.1

kubectl rollout status deployment/app-deployment

kubectl rollout history deployment/app-deployment

kubectl rollout undo deployment/app-deployment

```

### Lists external IP adress of all nodes

```

kubectl get nodes -o jsonpath='{.items[*].status.addresses[?(@.type=="InternalIP")].address}'

```

### Lists all node of names with external IP address 

```

kubectl get nodes -o custom-columns=NODE:.metadata.name,'IP:.status.addresses[?(@.type=="InternalIP")].address'

```

### To get token from secret

```

kubectl -n jenkins get secret jenkins-token -o jsonpath="{.data.token}"|base64 -d; echo

```

### StatefulSet - rolling update, scale up and down 

```

kubectl rollout restart sts name_sts

kubectl scale --replicas=0 sts name_sts

kubectl scale --replicas=1 sts name_sts

```