feat: Add labels to runners

Fixes #2.

Signed-off-by: Julien Riou <julien@riou.xyz>

tasks/register-runner.yml

@@ -2,11 +2,11 @@
 - name: check variables
   ansible.builtin.assert:
     that:
-      - forgejo_runners_instance | mandatory
-      - forgejo_runners_version | mandatory
-      - forgejo_runners_config_dir | mandatory
-      - item.key | mandatory
-      - item.value | mandatory
+      - forgejo_runners_instance is defined
+      - forgejo_runners_version is defined
+      - forgejo_runners_config_dir is defined
+      - "'key' in item"
+      - "'value' in item"
 
 - name: create runner subdirectory
   ansible.builtin.file:
@@ -33,8 +33,7 @@
   notify: start runners
 
 - name: create runner configuration
-  ansible.builtin.copy:
-    src: runners/config.yml
+  ansible.builtin.template:
+    src: runners/config.yml.j2
     dest: "{{ forgejo_runners_config_dir }}/{{ item.key }}/config.yml"
-    force: false
-  notify: start runners
+  notify: restart runners