This is a simple playbook to wrap the following operations:
- Install the kubeadm repo
- Install docker, kubeadm, kubelet, kubernetes-cni, and kubectl
- Disable SELinux 😞
- Set docker
--logging-driver=json-file - Set docker
--storage-driver=overlay - Set kubelet
--cgroup-driver=systemd - Optional: Configure an insecure registry for docker
- Initialize the cluster on master with
kubeadm init - Install user specified pod network from
group_vars/all - Join the nodes to the cluster with 'kubeadm join`
This has been tested with CentOS 7.3 and Kubernetes v1.6.1
At the end of the playbook, either copy /etc/kubernetes/admin.conf to $HOME/config or export KUBECONFIG=/etc/kubernetes/admin.conf and kubectl will operate on the new cluster.
git clone https://github.com/sjenning/kubeadm-playbook.git
cd kubeadm-playbook/
cp hosts.example hosts
vi hosts <add hosts>
group_vars
cp group_vars/all.example group_vars/all
vi group_vars/all <modify vars if needed>
ansible-playbook -i hosts site.yaml