add docs on the community-containers feature

Signed-off-by: Simon L <szaimen@e.mail.de>

community-containers/fail2ban/readme.md

@@ -1 +1,13 @@
-This is not working on Docker Desktop since it needs network_mode: host in order to work correctly.
+## Fail2ban
+This container bundles fail2ban and auto-configures it for you in order to block ip-addresses automatically.
+
+### Notes
+- This is not working on Docker Desktop since it needs `network_mode: host` in order to work correctly.
+- If you get an error like `"ip6tables v1.8.9 (legacy): can't initialize ip6tables table filter': Table does not exist (do you need to insmod?)"`, you need to enable ip6tables on your host via `sudo modprobe ip6table_filter`.
+- See https://github.com/nextcloud/all-in-one/tree/main/community-containers how to add it to the AIO stack
+
+### Repository
+https://github.com/szaimen/aio-fail2ban
+
+### Maintainer
+https://github.com/szaimen

community-containers/readme.md

@@ -1,3 +1,13 @@
-## This is a WIP and not working yet!
+# Community containers
+This directory features containers that are built for AIO which allows to add additional functionality very easily.
 
+## Disclaimers
+⚠️ This is currently beta and not stable yet!
+
+All containers that are in this directory are community maintained so the responsibility is on the community to keep them updated and secure. There is no guarantee that this will be the case in the future.
+
+## How to use this?
 You might want to add additional community containers to the default AIO stack. You can do so by adding `--env AIO_COMMUNITY_CONTAINERS="container1 container2"` to the docker run command of the mastercontainer (but before the last line `nextcloud/all-in-one:latest`! If it was started already, you will need to stop the mastercontainer, remove it (no data will be lost) and recreate it using the docker run command that you initially used) and customize the value to your fitting. It must match the folder names in this directory! ⚠️⚠️⚠️ Please review the folder for documentation on each of the containers before adding them! Not reviewing the documentation for each of them first might break starting the AIO containers because e.g. fail2ban only works on Linux and not on Docker Desktop!
+
+## How to add containers?
+Simply submit a PR by creating a new folder in this directory: https://github.com/nextcloud/all-in-one/tree/main/community-containers with the name of your container. It must include a json file with the same name and with correct syntax and a readme.md with additional information. You might get inspired by https://github.com/nextcloud/all-in-one/tree/main/community-containers/fail2ban how it can look like. For a full-blown example, see https://github.com/nextcloud/all-in-one/blob/main/php/containers.json. The json-schema that it validates against can be found here: https://github.com/nextcloud/all-in-one/blob/main/php/containers-schema.json.

readme.md

@@ -685,7 +685,7 @@ You can edit Nextclouds config.php file directly from the host with your favorit
 If you want to define a custom skeleton directory, you can do so by copying your skeleton files `sudo docker cp --follow-link /path/to/nextcloud/skeleton/ nextcloud-aio-nextcloud:/mnt/ncdata/skeleton/`, applying the correct permissions with `sudo docker exec nextcloud-aio-nextcloud chown -R 33:0 /mnt/ncdata/skeleton/` and `sudo docker exec nextcloud-aio-nextcloud chmod -R 750 /mnt/ncdata/skeleton/` and setting the skeleton directory option with `sudo docker exec --user www-data -it nextcloud-aio-nextcloud php occ config:system:set skeletondirectory --value="/mnt/ncdata/skeleton"`. You can read further on this option here: [click here](https://docs.nextcloud.com/server/stable/admin_manual/configuration_server/config_sample_php_parameters.html?highlight=skeletondir#:~:text=adding%20%3Fdirect%3D1-,'skeletondirectory',-%3D%3E%20'%2Fpath%2Fto%2Fnextcloud)
 
 ### Fail2ban
-You can configure your server to block certain ip-addresses using fail2ban as bruteforce protection. Here is how to set it up: https://docs.nextcloud.com/server/stable/admin_manual/installation/harden_server.html#setup-fail2ban. The logpath of AIO is by default `/var/lib/docker/volumes/nextcloud_aio_nextcloud/_data/data/nextcloud.log`. Do not forget to add `chain=DOCKER-USER` to your nextcloud jail config (`nextcloud.local`) otherwise the nextcloud service running on docker will still be accessible even if the IP is banned. Also, you may change the blocked ports to cover all AIO ports: by default `80,443,8080,8443,3478` (see [this](https://github.com/nextcloud/all-in-one#explanation-of-used-ports))
+You can configure your server to block certain ip-addresses using fail2ban as bruteforce protection. Here is how to set it up: https://docs.nextcloud.com/server/stable/admin_manual/installation/harden_server.html#setup-fail2ban. The logpath of AIO is by default `/var/lib/docker/volumes/nextcloud_aio_nextcloud/_data/data/nextcloud.log`. Do not forget to add `chain=DOCKER-USER` to your nextcloud jail config (`nextcloud.local`) otherwise the nextcloud service running on docker will still be accessible even if the IP is banned. Also, you may change the blocked ports to cover all AIO ports: by default `80,443,8080,8443,3478` (see [this](https://github.com/nextcloud/all-in-one#explanation-of-used-ports)). Apart from that there is now a community container that can be added to the AIO stack: https://github.com/nextcloud/all-in-one/tree/main/community-containers/fail2ban
 
 ### LDAP
 It is possible to connect to an existing LDAP server. You need to make sure that the LDAP server is reachable from the Nextcloud container. Then you can enable the LDAP app and configure LDAP in Nextcloud manually. If you don't have a LDAP server yet, recommended is to use this docker container: https://hub.docker.com/r/nitnelave/lldap. Make sure here as well that Nextcloud can talk to the LDAP server. The easiest way is by adding the LDAP docker container to the docker network `nextcloud-aio`. Then you can connect to the LDAP container by its name from the Nextcloud container.