Add Docker provider for Vagrant development environment

See merge request tildes-community/tildes-cf!1

ansible/roles/postgresql/tasks/main.yml

@@ -1,22 +1,31 @@
 ---
-- name: Add APT key for PostgreSQL repository
-  apt_key:
-    url: https://www.postgresql.org/media/keys/ACCC4CF8.asc
-
-- name: Add PostgreSQL APT repository
-  apt_repository:
-    repo: deb http://apt.postgresql.org/pub/repos/apt buster-pgdg main
-
 - name: Install PostgreSQL
   apt:
     name: postgresql-{{ postgresql_version }}
 
-- name: Start and enable PostgreSQL service
-  service:
+- name: Remove postgresql from init.d (may conflict with systemd service)
+  file:
+    path: /etc/init.d/postgresql
+    state: absent
+  when: is_docker
+
+- name: Update rc.d to reflect init.d removal
+  command:
+    cmd: update-rc.d postgresql remove
+  when: is_docker
+
+- name: Start and enable PostgreSQL meta unit service
+  systemd_service:
     name: postgresql
     state: started
     enabled: true
 
+- name: Start and enable PostgreSQL cluster service
+  systemd_service:
+    name: postgresql@{{ postgresql_version }}-main
+    state: started
+    enabled: true
+
 - name: Set configuration options in postgresql.conf
   lineinfile:
     path: /etc/postgresql/{{ postgresql_version }}/main/postgresql.conf