Implement post-delete and add clarifying comment

plays/lib/database.yml

@@ -1,12 +1,11 @@
 ---
+- name: Setup database facts
+  set_fact:
+    mount_map:
+      mariadb: /var/lib/mysql
 
 - name: Run database setup tasks
   block:
-    - name: Setup database facts
-      set_fact:
-        mount_map:
-          mariadb: /var/lib/mysql
-
     - name: "Create {{ item.type }} database"
       no_log: true
       shell: "

plays/post_delete.yml

@@ -1,4 +1,14 @@
 ---
 - hosts: all
   gather_facts: false
-  tasks: []
+  tasks:
+    - name: Remove deploy.d folder
+      file:
+        path: "{{  app_config_root }}"
+        state: absent
+
+    - name: Remove database(s)
+      shell: "dokku {{ item.type }}:destroy {{ app }} --force"
+      args:
+        removes: "/var/lib/dokku/services/{{ item.type }}/{{ app }}"
+      with_items: "{{ db }}"

plays/pre_deploy.yml

@@ -16,7 +16,12 @@
     - name: Include domain tasks
       include: ./lib/domain.yml
 
+    # Note(decentral1se): in order to iterate through the end-user defined `db`
+    # stanza in the config.yml, we need to pass them into the include / block
+    # using `with_items` because Ansible decides that is the only way we can do
+    # that
     - name: Include database tasks
+      no_log: true
       include: ./lib/database.yml
       with_items: "{{ db }}"
       when: db is defined