https://github.com/alex-rosta/k3s
https://github.com/alex-rosta/k3s
ansible ansible-playbook ansible-role haproxy k3s k3s-cluster keepalived
Last synced: about 1 month ago
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- Host: GitHub
- URL: https://github.com/alex-rosta/k3s
- Owner: alex-rosta
- Created: 2025-02-27T09:02:37.000Z (about 2 months ago)
- Default Branch: main
- Last Pushed: 2025-03-13T10:49:16.000Z (about 2 months ago)
- Last Synced: 2025-03-22T18:28:08.780Z (about 1 month ago)
- Topics: ansible, ansible-playbook, ansible-role, haproxy, k3s, k3s-cluster, keepalived
- Language: Jinja
- Homepage:
- Size: 68.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Loadbalanced K3s Cluster
Installs a loadbalanced k3s cluster on selected hosts.
Recommended 3 masters, 3 workers and 2 loadbalancer nodes.
Preferred and tested OS = Ubuntu >=22.04
Use "cleanup" role if the environment is to be destroyed after creation.
Full example below
## Playbook usage
```yaml
- name: Common tasks
hosts: all
become: yes
roles:
- common
- name: Install loadbalancer
hosts: loadbalancer
become: yes
roles:
- loadbalancer
- name: Install k3s on masters
hosts: m1:masterx
become: yes
roles:
- k3s_master
- name: Install k3s on workers
hosts: worker
become: yes
roles:
- k3s_worker
- name: Cleanup
hosts: all
become: yes
roles:
- cleanup
```
## Sample inventory with required params
```yaml
all:
children:
m1:
hosts:
m1:
ansible_host: 192.168.1.50
masterx:
hosts:
master2:
ansible_host: 192.168.1.51
master3:
ansible_host: 192.168.1.52
worker:
hosts:
worker1:
ansible_host: 192.168.1.53
worker2:
ansible_host: 192.168.1.54
worker3:
ansible_host: 192.168.1.55
loadbalancer:
hosts:
lb1:
ansible_host: 192.168.1.56
lb2:
ansible_host: 192.168.1.57
```
Using github actions against local environment for validating and testing idempotency.
## Dynamically fetch hosts/inventory from vSphere
```yaml
plugin: vmware_vm_inventory
strict: False
hostname: "{{ VMWARE_HOST }}"
username: "{{ VMWARE_USER }}"
password: "{{ VMWARE_PASSWORD }}"
validate_certs: False
with_tags: True
hostnames:
- 'config.name'
properties:
- 'config.name'
- 'config.annotation'
- 'guest.ipAddress'
filters:
- "'loadbalancer' in config.annotation or 'master1' in config.annotation or 'masterx' in config.annotation or 'worker' in config.annotation"
groups:
loadbalancer: "'loadbalancer' in config.annotation"
master1: "'master1' in config.annotation"
masterx: "'masterx' in config.annotation"
worker: "'worker' in config.annotation"
```
Uncomment ansible.cfg line:
```cfg
[defaults]
hostkey_checking = False
[inventory]
enable_plugins = vmware_vm_inventory
```
```
ansible-inventory -i inventory/dynamic.vmware.yml --list
```