This Ansible role is heavily based on the Kubernetes Install Tutorial from Christian Beneke c.beneke@wirelab.org (see reference link).
Features:
- supports Ubuntu/Debian based Linux OS (more to come)
- role also installs Docker dependency
- supports single and multi-master control planes
- uses Flannel for CNI
- supports Hetzner Cloud volumes
- supports MetalLB using Floating IP(s)
- supports switching of Floating IP to different worker node if current node becomes not ready
- supports Helm2 and Helm3 (only Helm2 tested so far)
- using Ansible Vault for Hetzner Cloud API token highly recommended
- hosts:
- kube01-master01
- kube01-master02
- kube01-master03
- kube01-worker01
- kube01-worker02
- kube01-worker03
vars:
networking_floating_ip: 'A.B.C.D'
kubernetes_hetzner_floating_ip: "{{ networking_floating_ip }}"
kubernetes_hetzner_docker_version: '5:18.09.9~3-0~ubuntu-bionic'
kubernetes_hetzner_kubernetes_version: '1.16.8'
kubernetes_hetzner_api_token: !vault |
$ANSIBLE_VAULT;1.1;AES256
[...]
kubernetes_hetzner_network_id: <NetworkID>
kubernetes_hetzner_cluster_name: kube01
kubernetes_hetzner_dns_domain: kube01.dmsp.de
kubernetes_hetzner_control_plane_endpoint: kube01.dmsp.de:6443
kubernetes_hetzner_init_node: kube01-master01
kubernetes_hetzner_helm_version: 2
kubernetes_hetzner_install_metallb: True
# only required for testing (quick re-install)
kubernetes_hetzner_reset_cluster: False
[...]
# only for masters (e.g. in file group_vars/kube01-master.yml)
kubernetes_hetzner_role_master: True
roles:
- ...
- kubernetes-hetznerBSD 2-Clause License
This role was created in 2020 by Stefan Pommerening step@dmsp.de, https://www.dmsp.de