# k3s_storage Ansible Role

This role installs and configures a k3s node with storage-specific taints and labels.

## Role Variables

- `k3s.loadbalancer.default_port`: The port of the k3s loadbalancer. Defaults to `6443`.
- `k3s_token`: The token to join the k3s cluster. This is a required variable.
- `hostvars['k3s-loadbalancer'].ansible_default_ipv4.address`: The IP address of the k3s loadbalancer. This is discovered automatically from the host with the name `k3s-loadbalancer`.

## Tasks

The main task includes the following files:

- `requirements.yml`:
  - Updates and upgrades system packages.
  - Installs `open-iscsi` and `nfs-common`.
  - Starts and enables the `open-iscsi` service.
- `installation.yml`:
  - Downloads the k3s installation script.
  - Installs k3s on the node with the following configurations:
    - Taint: `storage=true:NoExecute`
    - Label: `longhorn=true`

## Handlers

- `Restart k3s`: Restarts the k3s service.

## Usage

Here is an example of how to use this role in a playbook:

```yaml
- hosts: k3s_storage_nodes
  roles:
    - role: k3s_storage
      vars:
        k3s_token: "your_k3s_token"
```