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README.md
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# Ansible Role: k3s
# Ansible Role: k3s (v2.x)
Ansible role for installing [Rancher Labs k3s](https://k3s.io/) ("Lightweight
Kubernetes") as either a standalone server or cluster.
[![Build Status](https://www.travis-ci.org/PyratLabs/ansible-role-k3s.svg?branch=master)](https://www.travis-ci.org/PyratLabs/ansible-role-k3s)
[![Build Status](https://www.travis-ci.org/PyratLabs/ansible-role-k3s.svg?branch=main)](https://www.travis-ci.org/PyratLabs/ansible-role-k3s)
## Requirements
The host you're running Ansible from requires the following Python dependencies:
- `jmespath >= 0.9.0`
- `ansible >= 2.10`
- `jmespath >= 0.10.0`
This role has been tested on Ansible 2.7.0+ against the following Linux Distributions:
You can install dependencies using the requirements.txt file in this repository:
`pip3 install -r requirements.txt`.
This role has been tested against the following Linux Distributions:
- Amazon Linux 2
- Archlinux
@ -27,14 +31,15 @@ This role has been tested on Ansible 2.7.0+ against the following Linux Distribu
- Ubuntu 18.04 LTS
- Ubuntu 20.04 LTS
:warning: The v2 releases of this role only supports `k3s >= v1.19`, for
`k3s < v1.19` please consider updating or use the v1.x releases of this role.
## Disclaimer
:warning: May not be suitable for production use!
Rancher Labs is awesome and has released k3s as v1.0.0, however at the time of
creating this role I do not have a k3s cluster in production nor am I unlikely
to ever have one. Please ensure you practice extreme caution and operational
rigor before using this role for any serious workloads.
Rancher Labs is awesome and k3s is being used in production, however at the
time of creating this role I do not have a k3s cluster in production nor am I
likely to ever have one. Please ensure you practice extreme caution and
operational rigor before using this role for any serious workloads.
If you have any problems please create a GitHub issue, I maintain this role in
my spare time so I cannot promise a speedy fix delivery.
@ -236,7 +241,7 @@ Below are variables that are set against specific hosts in your inventory.
By default only one host will be defined as a control node by Ansible, If you
do not set a host as a control node, this role will automatically delegate
the first play host as a control node (master). This is not suitable for use in
the first play host as a control node. This is not suitable for use within
a Production workload.
If multiple hosts have `k3s_control_node` set to true, you must also set
@ -248,8 +253,8 @@ the play hosts.
See: [High Availability with an External DB](https://rancher.com/docs/k3s/latest/en/installation/ha/)
It is also possible, though not supported, to run a single K3s master with a
`k3s_datastore_endpoint` defined. As this is not a typically supported
It is also possible, though not supported, to run a single K3s control node
with a `k3s_datastore_endpoint` defined. As this is not a typically supported
configuration you will need to set `k3s_use_unsupported_config` to `true`.
Since K3s v1.19.1 it is possible to use Etcd as the backend database, and this
@ -265,7 +270,7 @@ to `true`.
If you are running k3s on systems with multiple network interfaces, it is
necessary to have the flannel interface on a network interface that is routable
to the master node(s).
to the control node(s).
#### Notes about `_args`, `_labels` and `_taints` variables
@ -280,7 +285,7 @@ Affected variables:
These parameters allow for assigning additional args to K3s during runtime.
For instance, to use the Azure Cloud Controller, assign the below to
the master node's configuration in your host file.
the control node's configuration in your host file.
**YAML**:
@ -322,7 +327,7 @@ No dependencies on other roles.
## Example Playbooks
Example playbook, single master node running v0.10.2:
Example playbook, single control node running v0.10.2:
```yaml
- hosts: k3s_nodes
@ -353,4 +358,4 @@ Example playbook, Highly Available running the latest release:
## Author Information
[Xan Manning](https://xanmanning.co.uk/)
[Xan Manning](https://xan.manning.io/)

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requirements.txt
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jmespath>=0.10.0
ansible>=2.10.3