added postiz to stack and associated caddy and glance config

roles/docker/tasks/main.yml

@@ -100,4 +100,8 @@
 
 - name: Install pingvin
   import_tasks: pingvin.yml
-  tags: pingvin
+  tags: pingvin
+
+- name: Install postiz
+  import_tasks: postiz.yml
+  tags: postiz

roles/docker/tasks/postiz.yml

@@ -0,0 +1,19 @@
+- name: make postiz directories
+  ansible.builtin.file:
+    path: "{{ item}}"
+    state: directory
+  loop:
+    - /opt/stacks/postiz
+
+- name: Template out the compose file
+  ansible.builtin.template:
+    src: postiz-compose.yml.j2
+    dest: /opt/stacks/postiz/compose.yml
+    owner: root
+    mode: 644
+
+- name: deploy postiz stack
+  community.docker.docker_compose_v2:
+    project_src: /opt/stacks/postiz
+    files:
+    - compose.yml