container, service: Support reloading containers on template file change

roles/service/tasks/additional.yaml

@@ -16,6 +16,8 @@
     container_secrets: "{{ _service_additional_container_secrets }}"
     container_env: "{{ _service_additional_container.env }}"
     container_add_capabilities: "{{ _service_additional_container.add_capabilities }}"
+    container_reload_method: "{{ _service_additional_container.reload_method }}"
+    container_reload_command: "{{ _service_additional_container.reload_command }}"
     container_requires: "{{ _service_additional_container_requires }}"
     container_wants: "{{ _service_additional_container_wants }}"
     container_auto_update: "{{ service_auto_update }}"

roles/service/tasks/host_mounts.yaml

@@ -24,7 +24,9 @@
     dest: "{{ item[1] }}"
     mode: "{{ item[0].mode | default('0644') }}"
     validate: "{{ validate if item[0].template_validate_command is defined else omit }}"
-  notify: Restart container service {{ service_name }}
+  notify: >-
+    {{ 'Reload' if service_container_reload_method != 'none' else 'Restart' }}
+    container service {{ service_name }}
   loop: "{{ _service_all_template_mounts | zip(_service_all_template_mount_host_files) }}"
   vars:
     validate: >-

roles/service/tasks/main.yaml

@@ -48,6 +48,8 @@
     container_secrets: "{{ _service_container_secrets }}"
     container_env: "{{ service_container_env }}"
     container_add_capabilities: "{{ service_container_add_capabilities }}"
+    container_reload_method: "{{ service_container_reload_method }}"
+    container_reload_command: "{{ service_container_reload_command }}"
     container_requires: "{{ _service_container_requires }}"
     container_wants: "{{ _service_container_wants }}"
     container_auto_update: "{{ service_auto_update }}"