k8s-learning

Kubernetes learning environment automation

Create VM

Setup VM on local machine

Add user to sudoers group and log out session

su root
/sbin/usermod -aG sudo $USER
pkill -KILL -u $USER

Configure VM

sudo apt-get update
sudo apt-get dist-upgrade -y

Enable copy paste into VM

sudo apt-get install -y spice-vdagent
pkill -KILL -u $USER

Turn off swapping by creating a backup and editing the fstab file

sudo swapoff -a
sudo sed -i.bak '/swap/s/^/#/' /etc/fstab

Installing QEMU

sudo apt-get install -y qemu-system swtpm-tools virt-manager 

Adding K8S gpg-key

sudo apt-get install -y apt-transport-https ca-certificates curl gnupg
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
sudo chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg

Add K8S repository

echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.30/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo chmod 644 /etc/apt/sources.list.d/kubernetes.list

Install K8S kubectl

sudo apt-get update
sudo apt-get install -y kubectl

Autocompletion for K8S kubectl

sudo apt-get install bash-completion
echo '' >>~/.bashrc
echo '# K8S' >>~/.bashrc
echo 'source <(kubectl completion bash)' >>~/.bashrc

K8S kubectl alias

echo 'alias k=kubectl' >>~/.bashrc
echo 'complete -o default -F __start_kubectl k' >>~/.bashrc

K8S kubectl-convert

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl-convert"
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl-convert.sha256"
echo "$(cat kubectl-convert.sha256) kubectl-convert" | sha256sum --check
sudo install -o root -g root -m 0755 kubectl-convert /usr/local/bin/kubectl-convert 
rm kubectl-convert kubectl-convert.sha256

Download minikube

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube_latest_amd64.deb
sudo dpkg -i minikube_latest_amd64.deb

Autocompletion for K8S kubectl

sudo apt-get install bash-completion
echo '' >>~/.bashrc
echo '# minicube' >>~/.bashrc
echo 'source <(minicube completion bash)' >>~/.bashrc

Starting minicube

minikube start