prole/infrastructure/playbooks/k3s_sync.yml
2026-02-05 22:26:17 -08:00

113 lines
3.7 KiB
YAML

---
- name: Prepare k3s synchronization on controller
hosts: localhost
gather_facts: false
vars:
k3s_sync_source_host: >-
{{ (groups['k3s_hosts'] | select('extract', hostvars, 'k3s_cluster_init') | list | first) | default('') }}
tasks:
- name: Require a k3s init server as sync source
ansible.builtin.assert:
that:
- k3s_sync_source_host | length > 0
fail_msg: "No k3s init server found. Ensure a host has k3s_cluster_init: true."
- name: Add k3s sync source host
ansible.builtin.add_host:
name: "{{ k3s_sync_source_host }}"
groups: k3s_sync_source
- name: Create local temp directory for k3s sync
ansible.builtin.tempfile:
state: directory
prefix: k3s-sync-
register: k3s_sync_tmpdir
- name: Store k3s sync metadata
ansible.builtin.set_fact:
k3s_sync_source_host: "{{ k3s_sync_source_host }}"
k3s_sync_tmpdir_path: "{{ k3s_sync_tmpdir.path }}"
k3s_sync_tls_bundle: "{{ k3s_sync_tmpdir.path }}/k3s-tls.tgz"
- name: Collect k3s token and certs from init server
hosts: k3s_sync_source
become: true
tasks:
- name: Ensure k3s node token exists
ansible.builtin.stat:
path: /var/lib/rancher/k3s/server/node-token
register: k3s_node_token
- name: Fail when k3s node token is missing
ansible.builtin.fail:
msg: "k3s node token not found at /var/lib/rancher/k3s/server/node-token"
when: not k3s_node_token.stat.exists
- name: Read k3s node token
ansible.builtin.slurp:
src: /var/lib/rancher/k3s/server/node-token
register: k3s_node_token_raw
- name: Store k3s sync token on controller
ansible.builtin.set_fact:
k3s_sync_token: "{{ k3s_node_token_raw.content | b64decode | trim }}"
delegate_to: localhost
- name: Check for k3s tls directory
ansible.builtin.stat:
path: /var/lib/rancher/k3s/server/tls
register: k3s_tls_dir
- name: Create k3s tls bundle
ansible.builtin.archive:
path: /var/lib/rancher/k3s/server/tls
dest: /tmp/k3s-tls.tgz
format: gz
when: k3s_tls_dir.stat.exists
- name: Fetch k3s tls bundle
ansible.builtin.fetch:
src: /tmp/k3s-tls.tgz
dest: "{{ hostvars['localhost'].k3s_sync_tls_bundle }}"
flat: true
when: k3s_tls_dir.stat.exists
- name: Mark tls bundle presence on controller
ansible.builtin.set_fact:
k3s_sync_tls_bundle_present: "{{ k3s_tls_dir.stat.exists }}"
delegate_to: localhost
- name: Remove temporary tls bundle from source
ansible.builtin.file:
path: /tmp/k3s-tls.tgz
state: absent
when: k3s_tls_dir.stat.exists
- name: Synchronize k3s token and certs to servers
hosts: k3s_hosts
become: true
serial: 1
vars:
k3s_sync_source_host: "{{ hostvars['localhost'].k3s_sync_source_host }}"
k3s_sync_token: "{{ hostvars['localhost'].k3s_sync_token | default('') }}"
k3s_sync_tls_bundle: "{{ hostvars['localhost'].k3s_sync_tls_bundle | default('') }}"
k3s_sync_tls_bundle_present: "{{ hostvars['localhost'].k3s_sync_tls_bundle_present | default(false) }}"
pre_tasks:
- name: Require k3s sync token
ansible.builtin.assert:
that:
- k3s_sync_token | length > 0
fail_msg: "k3s sync token is empty. Check the init server token."
tasks:
- name: Stop k3s before syncing
ansible.builtin.import_role:
name: k3s
tasks_from: stop
when: inventory_hostname != k3s_sync_source_host
- name: Sync k3s token and certs
ansible.builtin.import_role:
name: k3s
tasks_from: sync
when: inventory_hostname != k3s_sync_source_host