Around two years ago I bought a new Synology DS918+ and wrote an article about my new media stack. Since then over few iterations I recently ended up with yet another setup - that hopefully will be a final one ;).

Let’s just jump straight into the how-to, I’m gonna skip ansible syntax this time as we’re gonna use Watchtower to automatically upgrade running containers on our Synology.

What changed

Prerequisites

Step 1 - synoindex docker solution / workaround

As mentioned before we proceed we need to solve one issue regarding indexing files by Synology - so they will be visible in Video Station once downloaded. We need to inform Synoindex about that event - which is fine, both Radarr and Sonarr support that in their UI, but given the fact we run it in docker container there is a workaround we need to do. Thankfully a tool already exist called simple-synoindex-server - just follow it’s readme, create folder mappings and you can proceed!

Note: in case your process will be killed upon boot try running it via nohup or even adding sleep 60 (or more) before the command - I’m not sure how Synology boot process looks like and what is loaded when, but it works for me and I won’t question that.

I will assume that extracted binaries are located under /volume1/homes/admin/simple-synoindex-server. You should have there simple-synoindex-server.ini with folder mappings, synoindex and synoindex-server executable files there.

My mappings look like the following:

[mappings]
/tv=/volume3/tv
/movies=/volume2/movies

Step 2 - Docker network

First, let’s create a network for all of our containers as we will need some between-containers communication. To keep things simple we will use one single network for that purpose. I will be called media, but feel free to use anything you like:

docker network create media

Step 3 - Jackett

This hasn’t changed, I’m still using Jackett as a api-proxy for various private tracker sites. It worked great for years so I don’t see the need to change it - once set up you don’t have to touch it ever again.

docker create \
  --name=jackett \
  -e PUID=1024 \
  -e PGID=100 \
  -e TZ=Europe/Warsaw \
  -p 9117:9117 \
  -v /volume1/docker/jackett:/config \
  --restart unless-stopped \
  --network=media \
  --log-opt max-size=10m \
  --log-opt max-file=5 \
  linuxserver/jackett

docker start jackett

Step 4 - Radarr

The same goes for Radarr - worked great for years, one noticeable change is that we’re gonna mount simple-synoindex-server. That will allow us to enable indexing option found in Settings -> Connect -> Synology Indexer. It should work out of the box then with all the default settings.

docker create \
  --name=radarr \
  -e PUID=1024 \
  -e PGID=100 \
  -e TZ=Europe/Warsaw \
  -p 7878:7878 \
  -v /volume1/docker/radarr:/config \
  -v /volume2/movies:/movies \
  -v /volume2/torrent:/downloads \
  -v /volume1/homes/admin/simple-synoindex-server:/usr/syno/bin:ro \
  --network=media \
  --restart unless-stopped \
  --log-opt max-size=10m \
  --log-opt max-file=5 \
  linuxserver/radarr

docker start radarr

Step 5 - Sonarr

I moved from Medusa to Sonarr - mostly because Unpackerr supports both. I think Medusa did a pretty great job over the years, but Sonnarr is slick and you can just feel that the interface is much more responsive.

Once up & running don’t forget to enable Synology Indexer there as well.

docker create \
  --name=sonarr \
  -e PUID=1024 \
  -e PGID=100 \
  -e TZ=Europe/Warsaw \
  -p 8989:8989 \
  -v /volume1/docker/sonarr:/config \
  -v /volume3/tv:/tv \
  -v /volume2/torrent:/downloads \
  -v /volume1/homes/admin/simple-synoindex-server:/usr/syno/bin:ro \
  --network=media \
  --restart unless-stopped \
  --log-opt max-size=10m \
  --log-opt max-file=5 \
  linuxserver/sonarr

docker start sonarr

Step 6 - Transmission

Transmission in my experience can lag a little bit in comparison to rtorrent when it comes to downloads speeds, but it’s good enough for me and I like remote gui app on Mac.

docker create \
  --name=transmission \
  -e PUID=1024 \
  -e PGID=100 \
  -e TZ=Europe/Warsaw \
  -v /volume1/docker/transmission:/config \
  -v /volume2/torrent:/downloads \
  -p 9091:9091 \
  -p 51413:51413 \
  -p 51413:51413/udp \
  --network=media \
  --restart unless-stopped \
  --log-opt max-size=10m \
  --log-opt max-file=5 \
  linuxserver/transmission

docker start transmission

Step 7 - Unpackerr

Note: We will use hotio image as it allows to set user & group id, seems linuxserver doesn’t provide such image.

The great thing about unpackerr that it will clean up extracted files once they are imported by sonarr/radarr. Magic ✨. In short, it can pool various services and check their queues and orchestrate unpacking based on that - straightforward, but smart!

You can find API keys to Sonarr & Radarr in their Settings -> General sections

docker create \
  --name unpackerr \
  -v /volume2/torrent:/downloads \
  -e PUID=1024 \
  -e PGID=100 \
  -e TZ=Europe/Warsaw \
  -e UN_SONARR_0_URL=http://sonarr:8989 \
  -e UN_SONARR_0_API_KEY=SONARR-API-KEY \
  -e UN_RADARR_0_URL=http://radarr:7878 \
  -e UN_RADARR_0_API_KEY=RADARR-API-KEY \
  --log-opt max-size=10m \
  --log-opt max-file=5 \
  --network=media \
  --restart unless-stopped \
  hotio/unpackerr:release

docker start unpackerr

Step 8 - Watcher

One last step is to add watcher on top that will upgrade all the running containers on daily basis. We will also configure telegram soft notification.

Once you obtain your telegram token and chat id (out of scope of this article, but you can skip that part), replace TELEGRAM-BOT-TOKEN and CHANNEL-ID parts and run:

docker create \
  --name watchtower \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v /etc/localtime:/etc/localtime:ro \
  -e WATCHTOWER_NOTIFICATIONS=shoutrrr \
  -e WATCHTOWER_NOTIFICATION_URL="telegram://[email protected]/?channels=CHANNEL-ID&notification=no" \
  -e WATCHTOWER_CLEANUP=true \
  --log-opt max-size=10m \
  --log-opt max-file=5 \
  --restart unless-stopped \
  containrrr/watchtower

docker start unpackerr

And that’s a wrap up! By now you should have 4 apps available on exposed ports and 2 apps just doing their jobs in the background :).

Looking for subtitles support? Check bazaar that also works on top of Radarr and Sonarr!