Kubectl

kubectl get secret postgres-credentials -o jsonpath="{.data}" | jq 'to_entries | .[] | "\(.key): \(.value | @base64d)"'

kubectl create secret generic azure-secrets --from-env-file <(jq -r "to_entries|map(\"\(.key)=\(.value|tostring)\")|.[]" azure-credentials.json)
kubectl rollout restart deployment/subgraph-pbf

Synopsis

Manage the rollout of one or many resources.

Valid resource types include:

  • deployments
  • daemonsets
  • statefulsets
kubectl rollout SUBCOMMAND

Examples

  # Rollback to the previous deployment
  kubectl rollout undo deployment/abc
  
  # Check the rollout status of a daemonset
  kubectl rollout status daemonset/foo
  
  # Restart a deployment
  kubectl rollout restart deployment/abc
  
  # Restart deployments with the 'app=nginx' label
  kubectl rollout restart deployment --selector=app=nginx
kubectl get --raw "/apis/external.metrics.k8s.io/v1beta1/namespaces/*/nginx_ingress_controller_per_second" | jq .
kubectl run <podname> --image=nginx --generator=run-pod/v1 --dry-run -o yaml

kube-ps1

curl https://raw.githubusercontent.com/jonmosco/kube-ps1/master/kube-ps1.sh -o ~/kube-ps1.sh
echo "source ~/kube-ps1.sh" >> ~/.bashrc
echo "PS1='[\u@\h \W $(kube_ps1)]\$ '" >> ~/.bashrc

Krew:

Make sure that git is installed.
Run this command to download and install krew:

(
  set -x; cd "$(mktemp -d)" &&
  OS="$(uname | tr '[:upper:]' '[:lower:]')" &&
  ARCH="$(uname -m | sed -e 's/x86_64/amd64/' -e 's/\(arm\)\(64\)\?.*/\1\2/' -e 's/aarch64$/arm64/')" &&
  KREW="krew-${OS}_${ARCH}" &&
  curl -fsSLO "https://github.com/kubernetes-sigs/krew/releases/latest/download/${KREW}.tar.gz" &&
  tar zxvf "${KREW}.tar.gz" &&
  ./"${KREW}" install krew
)

Add the $HOME/.krew/bin directory to your PATH environment variable. To do this, update your .bashrc file and append the following line:

echo 'export PATH="${KREW_ROOT:-$HOME/.krew}/bin:$PATH"' >> ~/.bashrc

kubectx

kubectl krew install ctx
kubectl krew install ns
kubectl get pods -o jsonpath='{range .items[*]}{range .spec.containers[*]}{.name}{"\t"}{.resources.requests.memory}{"\n"}{end}{end}'