chore: publish 2.1.2+24.0.3-fpm release

This PR moves the db service into two override files `compose.mariadb.yml` and `compose.postgres.yml`.

Existing installations need to add:
```
COMPOSE_FILE="compose.yml"
COMPOSE_FILE="$COMPOSE_FILE:compose.mariadb.yml"
```
to their .env file to ensure mariadb is still used.

Co-authored-by: Philipp Rothmann <philipprothmann@posteo.de>
Reviewed-on: #26

README.md

@@ -166,3 +166,27 @@ Here is an example CSS config which hides the local login and makes space for a
 [nextcloud-docker]: https://hub.docker.com/_/nextcloud/
 [`abra`]: https://git.autonomic.zone/autonomic-cooperative/abra
 [`coop-cloud/traefik`]: https://git.autonomic.zone/coop-cloud/traefik
+
+## Using [`previewgenerator`](https://github.com/nextcloud/previewgenerator) app
+
+> Beware, this appp has been known to not work...
+
+After you install, enable etc. then you need to run the generation (**warning**: it can take a long time!):
+
+```
+abra app run <domain> app bash -u www-data
+./occ preview:generate-all
+```
+
+To set up the cron to run again, there is [no clear solution in the context of
+containers](https://github.com/nextcloud/previewgenerator/issues/1). So, a
+pretty dodgy hack is to run it from the system directly:
+
+```
+root@foo.com /etc/cron.hourly $ cat foo-com-preview-generate 
+#!/bin/bash
+
+docker exec -u www-data $(docker ps -f name=foo_com_app -q) ./occ preview:pre-generate
+```
+
+This app will improve performance of image browsing at the cost of storage space.

compose.yml

@@ -1,7 +1,7 @@
 version: "3.8"
 services:
   web:
-    image: nginx:1.20.0
+    image: nginx:1.23.1
     configs:
       - source: nginx_conf
         target: /etc/nginx/nginx.conf
@@ -33,7 +33,7 @@ services:
         - "traefik.http.middlewares.${STACK_NAME}-redirect.headers.SSLHost=${DOMAIN}"
 
   app:
-    image: nextcloud:23.0.3-fpm
+    image: nextcloud:24.0.3-fpm
     depends_on:
       - db
     configs:
@@ -69,13 +69,13 @@ services:
         failure_action: rollback
         order: start-first
       labels:
-        - "coop-cloud.${STACK_NAME}.version=2.0.0+23.0.3-fpm"
+        - "coop-cloud.${STACK_NAME}.version=2.1.2+24.0.3-fpm"
         - "backupbot.backup=true"
         - "backupbot.backup.path=/var/www/html/config/,/var/www/html/data/,/var/www/html/custom_apps/"
 
 
   cron:
-    image: nextcloud:23.0.3-fpm
+    image: nextcloud:24.0.3-fpm
     volumes:
       - nextcloud:/var/www/html/
       - nextapps:/var/www/html/custom_apps:cached
@@ -87,7 +87,7 @@ services:
     entrypoint: /cron.sh
 
   cache:
-    image: redis:6.2.5-alpine
+    image: redis:7.0.4-alpine
     networks:
       - internal
     volumes:

releases/2.0.0+23.0.3-fpm

@@ -1,4 +1,4 @@
-2.0.0 introduces a minor nextcloud update to 23.0.3 and moves the database service to a seperate override.yml file to support different database types (mariadb / postgres). This might break your installation. Please add the following snippet to your config .env to ensure the right db is used:
+2.0.0 introduces a minor nextcloud update to 23.0.4 and moves the database service to a seperate override.yml file to support different database types (mariadb / postgres). This might break your installation. Please add the following snippet to your config .env to ensure the right db is used:
 
 ```
 COMPOSE_FILE="compose.yml"