commands.txt

Port-forward a k8s service
  k port-forward svc/argo-cd-argocd-server 12345:443 -n argocd
  
Get shell on a pod
  k -n [namespace] exec -i -t [argocd server pod name] -- /bin/bash
  add --container param for specific container
  
List all non-running pods
  k get pods --field-selector status.phase!=Running -A
  
Count pods
  k get pods --all-namespaces --no-headers=true | wc -l

Get all available packages
  apt list -a kubectl
  apt-cache madison kubectl
  
Edit manifests directly in-cluster
  export KUBE_EDITOR="nano" 
  k edit deployment watchman-api -n 15five-dev
  
Install previous versions of packages
  npm install [email protected] --save-dev
  sudo apt-get install kubectl=2.21.3-00
  scoop install [email protected] AND scoop reset [email protected]
  
update kubecfg
  aws eks update-kubeconfig --name utility-green --region us-west-2 --profile sandbox
  
tell OS where to find kubeconfig
  KUBE_CONFIG_PATH=/path/to/.kube/config
  
copy local file to a pod
  k -n argocd cp argocd-backup-1.8.7.yaml argo-cd-argocd-server-c6b76c4db-ggztb:argocdbackup.yaml
  
fix ubuntu DNS issues - often causes terraform init problems
  sudo nano /etc/resolv.conf
  replace nameserver with cloudflare servers:
  nameserver 1.1.1.1
  nameserver 1.0.0.1
  
import argocd stuff on to pod - requires copying file to pod first
  argocd admin import - < argocdbackup.yaml
ArgoCD < 2.0
  argocd-util export
  
get logs
  kubektl logs
  kubectl get pod -o yaml
  kubectl get events
  kubectl describe
  
use a specific aws profile by default
  set AWS_PROFILE env var
  
Read helm state from secrets
  kubectl get secrets sh.helm.release.v1.wordpress.v1 -o json | jq .data.release | tr -d '"' | base64 -d | base64 -d | gzip -d 
  
Powershell Base64-encode
  [Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes("stuuuuufff"))
  
Get all pod images
  kubectl get pods --all-namespaces -o jsonpath="{.items[*].spec.containers[*].image}" | tr -s '[[:space:]]' '\n' | sort | uniq -c  

Delete completed jobs - will delete corresponding pods
  kubectl delete jobs --all-namespaces --field-selector status.successful=1 
  
Docker build, tag, push
  docker build -t nzp-msg-processor -f ./src/NZP.SingleMessageProcessor/Dockerfile .
  docker image tag nzp-msg-processor:latest 256348465055.dkr.ecr.us-east-2.amazonaws.com/nzp-msg-processor:latest
  aws ecr get-login-password --region us-east-2 | docker login --username AWS --password-stdin 256348465055.dkr.ecr.us-east-2.amazonaws.com
  docker image push 256348465055.dkr.ecr.us-east-2.amazonaws.com/nzp-msg-processor:latest
  
Get a shell on an ephemeral pod
  kubectl run -i --tty temp-pod --image=busybox --restart=Never --rm --namespace my-namespace
  ctrl+d to bail
  
Log into Argo CD from CLI
  argocd login --insecure --port-forward --port-forward-namespace=argocd --plaintext
  
Generate helm templates locally - from root chart directory
  helm dependency build
  helm template test ./ -f values.yaml -f dev.values.yaml -f beta-dev.values.yaml > rendered.yaml
  
List all Argo CD applications and their creation date using kubectl
  kubectl get applications.argoproj.io -A -o custom-columns=CREATED:.metadata.creationTimestamp,NAME:.metadata.name | awk 'NR>1' | sort -k1
  
Patch finalizer to allow deletion of a pod (a finalizer can prevent a pod from being deleted)
  Add `--type merge` if there are merge errors
  kubectl patch service svc-name -n namespace  -p "{\"metadata\":{\"finalizers\":null}}"
  k patch eventsource aws-sqs -n namespace --type merge -p "{\"metadata\":{\"finalizers\":null}}"