service: Add support for template mounts

Template mounts are templated from jinja2 templates to a service name
-specific directory under /srv and bind mounted inside the container.

roles/service/tasks/mounts.yaml

@@ -1,18 +1,21 @@
 ---
-- name: Set container named mounts
-  ansible.builtin.set_fact:
-    _service_container_mounts: >
-      {{ _service_container_mounts +
-      [mount | combine({'source': service_name + '-' + mount.source})] }}
-  when: mount.type == 'volume'
-  loop: "{{ service_container_mounts }}"
-  loop_control:
-    loop_var: mount
+- name: Create template mount directories under /srv
+  when: _service_template_mounts | length > 0
+  block:
+    - name: Create directory {{ _service_host_directory }}
+      ansible.builtin.file:
+        path: "{{ _service_host_directory }}"
+        state: directory
+        mode: "0755"
 
-- name: Set container named mounts
-  ansible.builtin.set_fact:
-    _service_container_mounts: "{{ _service_container_mounts + [mount] }}"
-  when: mount.type == 'bind'
+    - name: Create directory {{ _service_host_directory + '/mounts' }}
+      ansible.builtin.file:
+        path: "{{ _service_host_directory }}/mounts"
+        state: directory
+        mode: "0700"
+
+- name: Set mount definitions for {{ service_name }}
+  ansible.builtin.include_tasks: mount.yaml
   loop: "{{ service_container_mounts }}"
   loop_control:
     loop_var: mount