elsampee / kubeadm-ansible

Please use minimum instance_type = t2.medium

Install Docker

sudo hostnamectl set-hostname kubeadm-server
sudo su - ubuntu
sudo apt update -y
sudo apt install docker.io -y
sudo systemctl enable docker.service
sudo systemctl start docker

Use the link below to install kubeadm, kubectl, kubelet on all nodes

https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#installing-kubeadm-kubelet-and-kubectl

sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl
sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl

Inialize your master node ( Run this on the master node only)

https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/#initializing-your-control-plane-node

sudo kubeadm init --apiserver-advertise-address=<privatIP-of-masterNode> --pod-network-cidr=192.168.0.0/16 --ignore-preflight-errors=NumCPU

#Then run the join command generated by the kube init command on each worker node . kubeadm join : --token --discovery-token-ca-cert-hash sha256:

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

Install a Pod network add-on with the following command on the control-plane node or a node that has the kubeconfig credentials:

This will install weave network add-on https://www.weave.works/docs/net/latest/kubernetes/kube-addon/

  kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml