kubespray/docs/bootstrap-os.md

bootstrap-os

Bootstrap an Ansible host to be able to run Ansible modules.

This role will:

• configure the package manager (if applicable) to be able to fetch packages
• install Python
• install the necessary packages to use Ansible's package manager modules
• set the hostname of the host to {{ inventory_hostname }} when requested

Requirements

A host running an operating system that is supported by Kubespray. See Supported Linux Distributions for a current list.

SSH access to the host.

Role Variables

Variables are listed with their default values, if applicable.

General variables

• http_proxy/https_proxy The role will configure the package manager (if applicable) to download packages via a proxy.

• override_system_hostname: true The role will set the hostname of the machine to the name it has according to Ansible's inventory (the variable {{ inventory_hostname }}).

Per distribution variables

Flatcar Container Linux

• coreos_locksmithd_disable: false Whether locksmithd (responsible for rolling restarts) should be disabled or be left alone.

CentOS/RHEL/AlmaLinux/Rocky Linux

• centos_fastestmirror_enabled: false Whether the fastestmirror yum plugin should be enabled.

Dependencies

The kubespray-defaults role is expected to be run before this role.

Example Playbook

Remember to disable fact gathering since Python might not be present on hosts.

- hosts: all
  gather_facts: false  # not all hosts might be able to run modules yet
  roles:
    - kubespray-defaults
    - bootstrap-os

License

Apache 2.0