fix: guard all systemctl --user tasks with docker_rootless_setup

The daemon-reload, service restart, and service check tasks in
service.yml, prune.yml, update_runner.yml, and integration_test.yml
were not guarded by docker_rootless_setup. In CI containers without
a systemd user bus, these tasks fail with "Failed to connect to bus".

Also fix the integration_test.yml validation task to not fail on
service status when docker_rootless_setup is false.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

ansible/roles/gitea-runner/tasks/integration_test.yml

@@ -26,6 +26,9 @@
     XDG_RUNTIME_DIR: "/run/user/{{ gitea_runner_uid }}"
   register: service_check
   changed_when: false
+  when:
+    - systemd_available.stat.exists
+    - docker_rootless_setup
 
 - name: Validate runner installation
   ansible.builtin.fail:
@@ -34,12 +37,12 @@
       {% if not (runner_file_stat.stat.exists | default(false)) %}
       - Registration file (.runner) is missing. Registration may have failed.
       {% endif %}
-      {% if not (service_check.stdout | default('') | trim) == 'active' %}
+      {% if docker_rootless_setup and not (service_check.stdout | default('') | trim) == 'active' %}
       - Systemd user service is not active.
       {% endif %}
   when: >
     not (runner_file_stat.stat.exists | default(false))
-    or not (service_check.stdout | default('') | trim) == 'active'
+    or (docker_rootless_setup and not (service_check.stdout | default('') | trim) == 'active')
 
 - name: Report runner status
   ansible.builtin.debug:

ansible/roles/gitea-runner/tasks/prune.yml

@@ -22,6 +22,9 @@
   environment:
     XDG_RUNTIME_DIR: "/run/user/{{ gitea_runner_uid }}"
   changed_when: true
+  when:
+    - systemd_available.stat.exists
+    - docker_rootless_setup
 
 - name: Enable and start docker-prune user timer
   ansible.builtin.command: systemctl --user enable --now docker-prune.timer

ansible/roles/gitea-runner/tasks/service.yml

@@ -14,6 +14,9 @@
   environment:
     XDG_RUNTIME_DIR: "/run/user/{{ gitea_runner_uid }}"
   changed_when: true
+  when:
+    - systemd_available.stat.exists
+    - docker_rootless_setup
 
 - name: Enable and start gitea-runner user service
   ansible.builtin.command: systemctl --user enable --now gitea-runner

ansible/roles/gitea-runner/tasks/update_runner.yml

@@ -8,5 +8,7 @@
   become_user: "{{ gitea_runner_service_user }}"
   environment:
     XDG_RUNTIME_DIR: "/run/user/{{ gitea_runner_uid }}"
-  when: systemd_available.stat.exists | default(false) | bool
+  when:
+    - systemd_available.stat.exists | default(false) | bool
+    - docker_rootless_setup
   changed_when: true