kubespray/docs/operating_systems/flatcar.md

Flatcar Container Linux bootstrap

Example with Ansible:

Before running the cluster playbook you must satisfy the following requirements:

General Flatcar Pre-Installation Notes:

• Ensure that the bin_dir is set to /opt/bin
• ansible_python_interpreter should be /opt/bin/python. This will be laid down by the bootstrap task.
• The resolvconf_mode setting of docker_dns does not work for Flatcar. This is because we do not edit the systemd service file for docker on Flatcar nodes. Instead, just use the default host_resolvconf mode. It should work out of the box.

Then you can proceed to cluster deployment