Update README.md

README.md

@@ -3,3 +3,24 @@ Unofficial Base Docker Image for Phabricator
 
 Updated by [phabricator/bot](https://hub.docker.com/r/phabricator/bot/) every
 hour, on the hour.
+
+## arm devices
+Phabricator itself can run on any LAMP server stack. Technically MySQL and MariaDB (which is used in this setup) are available for _arm64_ and _armhf_ but Docker Hub is missing such images.
+The workaround that can be used is to use the _linuxserver/mariadb_ image which is an unofficial image built from the official source of MariaDB and compatibile with `arm64 arm64v8-latest` and `armhf arm32v7-latest`.
+
+In `docker-compose.yml` simply change the source image to `linuxserver/mariadb` and the persistance volume to `/config` to respect the new image folder tree:
+
+```
+database:
+    image: linuxserver/mariadb
+    volumes:
+       - db-data:/config
+```
+
+### Configuring the new database
+* Once the deploy is completed run `docker ps -a` to check the ip of the container which holds the database and note it down.
+* Get into the phabricator container with ` docker exec -it <container_id> bash`
+  * `cd phabricator`
+  * `./bin/config set mysql.host "ip_of_the_database_container"`
+  * `./bin/config set mysql.port "3306"`
+  * `./bin/config set mysql.pass "password_chosen_in_docker-compose.yml"`