From 86aef332ca95ccf2c84cad9c6832875b04dc0c28 Mon Sep 17 00:00:00 2001
From: phil <phil@systemausfall.org>
Date: Wed, 25 Oct 2023 17:44:18 +0200
Subject: [PATCH] Enable PostgreSQL database support

---
 README.md           |  4 +++-
 defaults/main.yml   |  1 +
 tasks/database.yml  | 54 +++++++++++++++++++++++++++++++--------------
 tasks/nextcloud.yml | 14 +++++++++++-
 4 files changed, 55 insertions(+), 18 deletions(-)

diff --git a/README.md b/README.md
index 7f45ac2..e193e92 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,7 @@ nextcloud_instances:
   - name: coop.systemausfall.org
     user: nextcloud
     database: nextcloud
+    database_type: PostgreSQL
     hiddenservice: true
     occ_config:
       apps:
@@ -65,7 +66,8 @@ php_cli_config:
   | `name` | string | Domain-Name der Instanz |
   | `alias`| string | Array mit weiteren Domain-Alias-Namen für diese Instanz |
   | `user` | string | Name eines anzulegenden Systemnutzers, der den PHP-FPM-Prozess ausführt |
-  | `database` | string | Name der anzulegenden MariaDB-Datenbank |
+  | `database` | string | Name der anzulegenden Datenbank |
+  | `database_type` | string | `MariaDB` oder `PostgreSQL` |
   | `hiddenservice` | bol | Richtet für die Instanz einen Onion Service ein |
 - Starte anschließend das Playbook:
   ```Shell
diff --git a/defaults/main.yml b/defaults/main.yml
index b40045e..84bbb30 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -4,6 +4,7 @@ apache_custom_conf_path: /etc/apache2/conf-available
 nextcloud_admin_user: systemausfall.org
 nextcloud_admin_pw: "{{ lookup('password', '/tmp/{{ item.name }}_admin_pwd length=42 chars=ascii_letters,digits') }}"
 nextcloud_db_password: "{{ lookup('password', '/tmp/{{ item.name }}_db_pwd length=42 chars=ascii_letters,digits') }}"
+nextcloud_db_type: MariaDB
 nextcloud_github_api_url: https://api.github.com/repos/nextcloud/server/releases/latest
 nextcloud_dl_url: "https://download.nextcloud.com/server/releases/nextcloud-{{ latest_version.stdout }}.tar.bz2"
 nextcloud_root: /data/nextcloud
diff --git a/tasks/database.yml b/tasks/database.yml
index eac0aeb..4b9b727 100644
--- a/tasks/database.yml
+++ b/tasks/database.yml
@@ -1,18 +1,40 @@
 ---
-- name: "Database | Erstelle Datenbank | {{ item.name }}"
-  community.mysql.mysql_db:
-    name: "{{ item.database }}"
-    state: present
-    login_unix_socket: "{{ mysql_socket }}"
-    login_user: root
+- name: "Richte MariaDB-Datenbank ein"
+  when: item.database_type == "MariaDB"
+  block:
+    - name: "Database | Erstelle Datenbank | {{ item.name }}"
+      community.mysql.mysql_db:
+        name: "{{ item.database }}"
+        state: present
+        login_unix_socket: "{{ mysql_socket }}"
+        login_user: root
 
-- name: "Database | Richte Datenbank-Benutzer ein | {{ item.name }}"
-  community.mysql.mysql_user:
-    name: "{{ item.database }}"
-    host: "{{ inventory_hostname }}"
-    password: "{{ nextcloud_db_password }}"
-    priv: "{{ item.database }}.*:ALL"
-    state: present
-    login_unix_socket: "{{ mysql_socket }}"
-    login_user: root
-    update_password: on_create
+    - name: "Database | Richte Datenbank-Benutzer ein | {{ item.name }}"
+      community.mysql.mysql_user:
+        name: "{{ item.database }}"
+        host: "{{ inventory_hostname }}"
+        password: "{{ nextcloud_db_password }}"
+        priv: "{{ item.database }}.*:ALL"
+        state: present
+        login_unix_socket: "{{ mysql_socket }}"
+        login_user: root
+        update_password: on_create
+
+- name: "Richte PostgreSQL-Datenbank ein"
+  when: item.database_type == "PostgreSQL"
+  block:
+    - name: "Database | Erstelle Datenbank | {{ item.name }}"
+      community.postgresql.postgresql_db:
+        name: "{{ item.database }}"
+        encoding: UTF8
+        template: template0
+      become: true
+      become_user: postgres
+
+    - name: "Database | Richte Datenbank-Benutzer ein | {{ item.name }}"
+      community.postgresql.postgresql_user:
+        name: "{{ item.database }}"
+        password: "{{ nextcloud_db_password }}"
+        db: "{{ item.database }}"
+      become: true
+      become_user: postgres
diff --git a/tasks/nextcloud.yml b/tasks/nextcloud.yml
index 3cd15ea..a5de704 100644
--- a/tasks/nextcloud.yml
+++ b/tasks/nextcloud.yml
@@ -47,4 +47,16 @@
   become: true
   become_user: "{{ item.user }}"
   changed_when: true
-  when: not nc_is_installed.stat.exists
+  when: not nc_is_installed.stat.exists and item.database_type == "MariaDB"
+
+- name: "Nextcloud | Führe Installation aus | {{ item.name }}"
+  ansible.builtin.command:
+    cmd: >
+      php occ maintenance:install --database "pgsql"
+      --database-name "{{ item.database }}" --database-user "{{ item.database }}"
+      --database-pass "{{ nextcloud_db_password }}" --database-host "{{ database_host }}"
+      --admin-user "{{ nextcloud_admin_user }}" --admin-pass "{{ nextcloud_admin_pw }}"
+    chdir: "{{ nextcloud_install_path }}"
+  become: true
+  become_user: "{{ item.user }}"
+  when: not nc_is_installed.stat.exists and item.database_type == "PostgreSQL"