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matrix-docker-ansible-deploy/roles/matrix-dynamic-dns/tasks/uninstall.yml
Slavi Pantaleev 1cd251ed78 Don't delete Docker images which may have been pulled by another
Some people run Coturn or Jitsi, etc., by themselves and disable it
in the playbook.

Because the playbook is trying to be nice and clean up after itself,
it was deleting these Docker images.

However, people wish to pull and use them separately and would rather
they don't get deleted.

We could make this configurable for the sake of this special case, but
it's simpler to just avoid deleting these images.
It's not like this "cleaning things up" thing works anyway.
As time goes on, the playbook gets updated with newer image tags
and we leave so many images behind. If one doesn't run
`docker system prune -a` manually once in a while, they'd get swamped
with images anyway. Whether we leave a few images behind due to the lack
of this cleanup now is pretty much irrelevant.
2021-01-23 14:01:31 +02:00

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YAML

---
- name: Check existence of matrix-dynamic-dns service
stat:
path: "{{ matrix_systemd_path }}/matrix-dynamic-dns.service"
register: matrix_dynamic_dns_service_stat
- name: Ensure matrix-dynamic-dns is stopped
service:
name: matrix-dynamic-dns
state: stopped
daemon_reload: yes
when: "matrix_dynamic_dns_service_stat.stat.exists"
- name: Ensure matrix-dynamic-dns.service doesn't exist
file:
path: "{{ matrix_systemd_path }}/matrix-dynamic-dns.service"
state: absent
when: "matrix_dynamic_dns_service_stat.stat.exists"
- name: Ensure systemd reloaded after matrix-dynamic-dns.service removal
service:
daemon_reload: yes
when: "matrix_dynamic_dns_service_stat.stat.exists"
# Intentionally not removing the Docker image when uninstalling.
# We can't be sure it had been pulled by us in the first place.