K8s Index

Collection of useful commands and code snippets related to K8s

Find and delete all pods with regex match

Note: Change ^name with pod name

Without force

kubectl delete pods $(kubectl get pods --no-headers -o custom-columns=":metadata.name" | grep ^name)

This script will install all the nessesory thigns to run k8s in that VM/node

sudo bash <<'EOF'
sudo apt update
sudo apt install -y containerd apt-transport-https ca-certificates curl gpg neovim btop
sudo curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.31/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.31/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo mkdir -p /etc/containerd
containerd config default | sudo tee /etc/containerd/config.toml

This script is used to install docker in Ubuntu

sudo bash <<'EOF'
for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done
if ! command -v curl &> /dev/null; then
  sudo apt-get install -y curl
fi
sudo apt-get update
sudo apt-get install -y ca-certificates curl