From e417ac4922131910816adfa151068dd4d4174aa1 Mon Sep 17 00:00:00 2001
From: Slavi Pantaleev <slavi@devture.com>
Date: Thu, 1 Nov 2018 09:48:20 +0200
Subject: [PATCH] Add support for Postgres 11

---
 CHANGELOG.md                                       |  8 ++++++++
 roles/matrix-server/defaults/main.yml              |  3 ++-
 roles/matrix-server/tasks/setup/setup_postgres.yml |  5 +++++
 roles/matrix-server/tasks/upgrade_postgres.yml     | 10 +++++++++-
 4 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59a6c5bd..352ec47c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # 2018-11-01
 
+## Postgres 11 support
+
+The playbook now installs [Postgres 11](https://www.postgresql.org/about/news/1894/) by default.
+
+If you have have an existing setup, it's likely running on an older Postgres version (9.x or 10.x). You can easily upgrade by following the [Maintenance / upgrading PostgreSQL](docs/maintenance-upgrading-postgres.md) guide.
+
+
 ## (BC Break) Renaming playbook variables
 
 Due to the large amount of features added to this playbook lately, to keep things manageable we've had to reorganize its configuration variables a bit.
@@ -19,6 +26,7 @@ The following playbook variables were renamed:
 - from `matrix_docker_image_postgres_v10` to `matrix_postgres_docker_image_v10`
 - from `matrix_docker_image_postgres_latest` to `matrix_postgres_docker_image_latest`
 
+
 # 2018-10-26
 
 ## Mautrix Whatsapp bridging support
diff --git a/roles/matrix-server/defaults/main.yml b/roles/matrix-server/defaults/main.yml
index ca8dbd9a..44a4276f 100644
--- a/roles/matrix-server/defaults/main.yml
+++ b/roles/matrix-server/defaults/main.yml
@@ -146,7 +146,8 @@ matrix_postgres_data_path: "{{ matrix_base_data_path }}/postgres"
 
 matrix_postgres_docker_image_v9: "postgres:9.6.10-alpine"
 matrix_postgres_docker_image_v10: "postgres:10.5-alpine"
-matrix_postgres_docker_image_latest: "{{ matrix_postgres_docker_image_v10 }}"
+matrix_postgres_docker_image_v11: "postgres:11.0-alpine"
+matrix_postgres_docker_image_latest: "{{ matrix_postgres_docker_image_v11 }}"
 
 
 matrix_coturn_docker_image: "instrumentisto/coturn:4.5.0.8"
diff --git a/roles/matrix-server/tasks/setup/setup_postgres.yml b/roles/matrix-server/tasks/setup/setup_postgres.yml
index d2666bf5..bbaebad7 100644
--- a/roles/matrix-server/tasks/setup/setup_postgres.yml
+++ b/roles/matrix-server/tasks/setup/setup_postgres.yml
@@ -33,6 +33,11 @@
     matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_v9 }}"
   when: "pg_version.startswith('9.')"
 
+- name: Determine Postgres version to use (use 10.x, if detected)
+  set_fact:
+    matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_v10 }}"
+  when: "pg_version == '10' or pg_version.startswith('10.')"
+
 - debug:
     msg: "NOTE: Your setup is on an old Postgres version ({{ matrix_postgres_docker_image_to_use }}), while {{ matrix_postgres_docker_image_latest }} is supported. You can upgrade using --tags=upgrade-postgres"
   when: "matrix_postgres_docker_image_to_use != matrix_postgres_docker_image_latest"
diff --git a/roles/matrix-server/tasks/upgrade_postgres.yml b/roles/matrix-server/tasks/upgrade_postgres.yml
index 0b1d262b..822bd428 100644
--- a/roles/matrix-server/tasks/upgrade_postgres.yml
+++ b/roles/matrix-server/tasks/upgrade_postgres.yml
@@ -60,10 +60,18 @@
     matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_v9 }}"
   when: "pg_version.startswith('9.')"
 
+- name: Determine Postgres version to use (use 10.x, if detected)
+  set_fact:
+    matrix_postgres_docker_image_to_use: "{{ matrix_postgres_docker_image_v10 }}"
+  when: "pg_version == '10' or pg_version.startswith('10.')"
+
 - name: Abort, if already at latest Postgres version
-  fail: msg="You are already running the latest Postgres version supported. Nothing to do"
+  fail: msg="You are already running the latest Postgres version supported ({{ matrix_postgres_docker_image_latest }}). Nothing to do"
   when: "matrix_postgres_docker_image_to_use == matrix_postgres_docker_image_latest"
 
+- debug:
+    msg: "Upgrading database from {{ matrix_postgres_docker_image_to_use }} to {{ matrix_postgres_docker_image_latest }}"
+
 - name: Ensure matrix-synapse is stopped
   service: name=matrix-synapse state=stopped