Update installation.md

Author: mztiq

getting-started/installation.md

@@ -179,3 +179,69 @@ volumes:
 ### Install on unRAID
 
 The unRAID community app store contains an app template managed by ZappyZap. Search "Speedtest Tracker" to install. Template support can be found [here](https://forums.unraid.net/topic/130245-support-devzwf-speedtest-tracker/).
+
+### Install on Synology
+
+Activate SSH on your Synology Device and connect to the command line.  
+
+Create your desired installation directory, for example:
+
+```yaml
+mkdir -p /opt/speedtest-tracker/config
+```
+
+Generate a `docker-compose.yml`:
+
+```yaml
+version: '3.3'
+services:
+    speedtest-tracker:
+        container_name: speedtest-tracker
+        ports:
+            - '8080:80'
+            - '8443:443'
+        environment:
+            - PUID=1000
+            - PGID=1000
+            - DB_CONNECTION=mysql
+            - DB_HOST=db
+            - DB_PORT=3306
+            - DB_DATABASE=speedtest_tracker
+            - DB_USERNAME=speedy
+            - DB_PASSWORD=password
+        volumes:
+            - '/path/to/directory:/config'
+        image: 'ghcr.io/alexjustesen/speedtest-tracker:latest'
+        restart: unless-stopped
+        depends_on:
+            - db
+    db:
+        image: mariadb:10
+        restart: always
+        environment:
+            - MARIADB_DATABASE=speedtest_tracker
+            - MARIADB_USER=speedy
+            - MARIADB_PASSWORD=password
+            - MARIADB_RANDOM_ROOT_PASSWORD=true
+        volumes:
+            - speedtest-db:/var/lib/mysql
+volumes:
+  speedtest-db:
+```
+
+{% hint style="info" %}
+Generate secure passwords, adjust volume mapping and ports to your setup. 
+{% endhint %}
+
+Start the Speedtest-Tracker containers with:
+
+```
+docker-compose up -d
+```
+
+Check status of the docker containers with `docker-compose ps` or the docker logs with `docker logs -f speedtest-tracker`.  
+You can now access the Web GUI via `http://172.0.0.1:8080` or `https://172.0.0.1:8443`.
+
+{% hint style="info" %}
+Remember to allow the used ports in your Synology Firewall.
+{% endhint %}