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README.md

Ansible Role: k3s

Ansible role for installing Racher Labs k3s ("Lightweight Kubernetes") as either a standalone server or cluster.

Requirements

This role has been tested on Ansible 2.6.0+ against the following Linux Distributions:

CentOS 7
Debian 9
Ubuntu 18.04 LTS

Disclaimer

⚠️ Not suitable for production use.

Whilst Rancher Labs are awesome, k3s is a fairly new project and not yet a v1.0 release so extreme caution and operational rigor is recommended before using this role for any serious development.

Role Variables

Group Variables

Below are variables that are set against all of the play hosts for environment consistency.

Variable	Description	Default Value
`k3s_release_version`	Use a specific version of k3s, eg. `v0.2.0`. Specify `false` for latest.	`false`
`k3s_github_url`	Set the GitHub URL to install k3s from.	https://github.com/rancher/k3s
`k3s_install_dir`	Installation directory for k3s.	`/usr/local/bin`
`k3s_control_workers`	Are control hosts also workers?	`true`
`k3s_ensure_docker_installed`	Use Docker rather than Containerd?	`false`

Important note about `k3s_release_version`

If you do not set a k3s_release_version the latest version of k3s will be installed. If you are developing against a specific version of k3s you must ensure this is set in your Ansible configuration, eg:

k3s_release_version: v0.2.0

Host Variables

Below are variables that are set against specific hosts in your inventory.

Variable	Description	Default Value
`k3s_control_node`	Define the host as a control plane node, (True/False).	`false`

Important note about `k3s_control_node`

Currently only one host can be defined as a control node, if multiple hosts are set to true the play will fail.

If you do not set a host as a control node, the role will automatically delegate the first play host as a control node.

Dependencies

No dependencies on other roles.

Example Playbook

Example playbook:

- hosts: k3s_nodes
  roles:
     - { role: xanmanning.k3s, k3s_release_version: v0.2.0 }

License

BSD

Author Information

Xan Manning