/eks-distro-kubeadm

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Deploy eks-distro with kubeadm

This is an Ansible script that you can use to deploy eks-distro with kubeadm deployment technique. I'm using cri-o for container runtime.

The script is idempotent, so you can add new nodes to the ansible node group and rerun the play.

Prerequisite

  • Install ansible
  • To implement init cluster, you need minimum of two nodes(master1, node1).
  • add nodes IP to the ansible host file
$ cat << EOF > ./k8s-hosts
[master]
192.168.122.157 # Change it to the master ip 
[nodes]
192.168.122.57 # Change it to the nodes ip
EOF

Run the playbook

ansible-playbook -i k8s-hosts -b --user=ubuntu k8s-cluster-setup.yaml

Add new nodes

You can just add a new node IP address to the k8s-hosts file

$ cat << EOF > ./k8s-hosts
[master]
192.168.122.157 # Change it to the master ip 
[nodes]
192.168.122.57 # Change it to the nodes ip
192.168.122.67 # Change it to the nodes ip

rerun the play

ansible-playbook -i k8s-hosts -b --user=ubuntu k8s-cluster-setup.yaml

Images and binaries

Project using official images and binaries that AWS published. you can find those dependencies here https://distro.eks.amazonaws.com/releases/v1-18-eks-1/

Limitation

  • There isn't any implementation for upgrade the cluster
  • There isn't any implementation for arm, but eks-distro published arm images/binaries, so you might be able to deploy it with some small tweaks and change the images/binaries versions in group var file.
  • the script doesn't support high-available/multi-master deployment