k8s-clusters/ansible/build-k3s-cluster.yml
2022-02-09 10:31:53 -06:00

119 lines
3.3 KiB
YAML

- name: debug stuff
hosts: all
tasks:
- name: set token fact for k3s-nodes hosts
run_once: true
with_items: '{{ groups["k3s-nodes"] }}'
delegate_to: '{{ item }}'
set_fact:
fake_hostname: '{{ hostvars[item]["inventory_hostname"] }} for {{ item }}'
- name: debug token fact for k3s-nodes hosts
run_once: true
with_items: '{{ groups["k3s-nodes"] }}'
delegate_to: '{{ item }}'
debug:
msg: '{{ hostvars[item]["fake_hostname"] }} for {{ inventory_hostname }}'
- name: install k3s on k3s-nodes
hosts: k3s-nodes
gather_facts: yes
roles:
- role: k3s-node
# TODO: ensure odd number of k3s-control-nodes hosts
- name: intialize k3s cluster on first control plane node
hosts: k3s-control-nodes[0]
tasks:
- name: create config directory
file:
recurse: yes
path: /etc/rancher/k3s/
state: directory
mode: '0700'
- name: copy initial config
become: true
copy:
src: ./templates/k3s-initial-server-config.yaml
dest: /etc/rancher/k3s/config.yaml
- name: run initial k3s server
become: true
ansible.builtin.command: systemctl enable --now k3s
- name: fetch token
become: true
slurp:
src: /var/lib/rancher/k3s/server/node-token
register: slurped_k3s_node_token
- name: set token fact for initial node
set_fact:
k3s_node_token: '{{ slurped_k3s_node_token.content | b64decode }}'
- name: configure remaining nodes
hosts: k3s-nodes,!k3s-control-nodes[0]
gather_facts: no
tasks:
- name: debug info
ansible.builtin.debug:
msg: '{{ ansible_facts }}'
# - name: debug token fact for k3s-nodes hosts
# run_once: true
# debug:
# msg: '{{ hostvars[groups["k3s-control-nodes"][0]]["k3s_node_token"] }}'
- name: set token fact
set_fact:
k3s_node_token: '{{ hostvars[groups["k3s-control-nodes"][0]]["k3s_node_token"] }}'
- name: configure k3s server with token
lineinfile:
path: /etc/systemd/system/k3s.service.env
state: present
line: K3S_TOKEN={{ k3s_node_token }}
create: yes
- name: configure k3s agent with token
lineinfile:
path: /etc/systemd/system/k3s-agent.service.env
state: present
line: K3S_TOKEN={{ k3s_node_token }}
create: yes
- name: create config directory
file:
recurse: yes
path: /etc/rancher/k3s/
state: directory
mode: '0700'
- name: configure k3s server endpoint
lineinfile:
path: /etc/rancher/k3s/config.yaml
state: present
line: 'server: https://{{ hostvars[groups["k3s-control-nodes"][0]]["ansible_default_ipv4"]["address"] }}:6443'
create: yes
# TODO: assert token is valid?
# - name: debug info2
# ansible.builtin.debug:
# msg: '{{ k3s_node_token }}'
# TODO: wait for initial control node to come up?
- name: start remaining control nodes
hosts: k3s-control-nodes,!k3s-control-nodes[0]
tasks:
- name: run k3s
become: true
ansible.builtin.command: systemctl enable --now k3s
- name: start remaining agent nodes
hosts: k3s-agent-nodes
tasks:
- name: run k3s
become: true
ansible.builtin.command: systemctl enable --now k3s-agent