matrix-docker-ansible-deploy/roles/matrix-synapse/tasks/workers/setup_uninstall.yml

---

- name: Populate service facts
  service_facts:

- name: Ensure any worker services are stopped
  service:
    name: "{{ item.key }}"
    state: stopped
  with_dict: "{{ ansible_facts.services|default({})|dict2items|selectattr('key', 'match', 'matrix-synapse-worker@.+\\.service')|list|items2dict }}"

# As we cannot know the ports of workers removed from the enabled_list..
# => .. just kill them all (FIXME?)
- name: Ensure previous worker service symlinks are cleaned
  file:
    path: "{{ item.root + '/' + item.path }}"
    state: absent
  when:
    - not matrix_synapse_workers_enabled|bool
    - item.state == 'link'
    - item.path is match('matrix-synapse-worker@.*\\.service')
  with_filetree:
    - "{{ matrix_systemd_path }}/matrix-synapse.service.wants"

- name: Ensure synapse worker base service file gets removed
  file:
    path: "{{ matrix_systemd_path }}/matrix-synapse-worker@.service"
    state: absent
  register: matrix_synapse_worker_systemd_service_result

- name: Remove workers from synapse.wants list
  set_fact:
    matrix_synapse_systemd_wanted_services_list: "{{ matrix_synapse_systemd_wanted_services_list | reject('search', item) | list }}"
  with_items: "{{ matrix_synapse_workers_avail_list }}"

- name: Ensure systemd noticed removal of worker service units
  service:
    daemon_reload: yes