To deploy a 3 node Kubernetes cluster using Ansible, you can use the kubespray
playbook, which is a popular open-source project for deploying and managing Kubernetes clusters using Ansible.
Here are the high-level steps to deploy a 3 node Kubernetes cluster using Ansible:
Install Ansible on your local machine and ensure that all the nodes in your cluster are accessible via SSH.
Clone the
kubespray
playbook from its GitHub repository:
git clone https://github.com/kubernetes-sigs/kubespray.git
Configure your inventory file with the details of your 4 nodes (1 master and 3 worker nodes). You can use a sample inventory file provided by
kubespray
, or create your own.Update the configuration files to match your environment. For example, you may want to modify the
group_vars
file to set the network plugin to use, the Kubernetes version, and other settings.Run the
kubespray
playbook using the following command:
ansible-playbook -i inventory/mycluster/hosts.yml --become --become-user=root cluster.yml
This will start the deployment process and install Kubernetes on all the nodes in your cluster. After the deployment completes successfully, you can access your Kubernetes cluster using the kubectl
command and start deploying your applications.
Note that this is a high-level overview, and there are many other configurations and settings that you can customize when deploying a Kubernetes cluster using Ansible. You should refer to the official kubespray
documentation for more details.