- Added role to setup https://github.com/prodrigestivill/docker-postgres-backup-local container to backup all postgres databases

roles/matrix-postgres-backup/tasks/validate_config.yml

@@ -0,0 +1,27 @@
+---
+
+# This is separate (from the other required variables below),
+# because we'd like to have a friendlier message for our existing users.
+- name: Fail if matrix_postgres_connection_password not defined
+  fail:
+    msg: >-
+      The playbook no longer has a default Postgres password defined in the `matrix_postgres_connection_password` variable, among lots of other Postgres changes.
+      You need to perform multiple manual steps to resolve this.
+      See our changelog for more details:
+      https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/CHANGELOG.md#breaking-change-postgres-changes-that-require-manual-intervention
+  when: "matrix_postgres_connection_password == ''"
+
+- name: Fail if required Postgres settings not defined
+  fail:
+    msg: >-
+      You need to define a required configuration setting (`{{ item }}`).
+  when: "vars[item] == ''"
+  with_items:
+    - "matrix_postgres_connection_hostname"
+    - "matrix_postgres_connection_username"
+    - "matrix_postgres_connection_password"
+    - "matrix_postgres_backup_schedule"
+    - "matrix_postgres_backup_keep_days"
+    - "matrix_postgres_backup_keep_weeks"
+    - "matrix_postgres_backup_keep_months"
+    - "matrix_postgres_backup_path"