Install Watchtower on Your Synology NAS with Docker

Last updated on January 9th, 2023 at 12:59 pm

With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker Hub. Watchtower will pull down your new image, gracefully shut down your existing container and restart it with the same options that were used when it was deployed initially

Code Source: GitHub

Skip to Docker Run Code / Skip to Compose & Portainer Code

Install Docker

Before we start, please ensure you have Docker installed. This can be installed through the Synology Package Center.

Create the Scheduled Task

We will now head into Control Panel > Task Scheduler > Create > Scheduled Task and click User-defined script. (see demonstration)

Configure the Scheduled Task

In the window that appears, insert the following:

In the General tab, In the Task field, enter Watchtower. From the User list, select root. Uncheck the Enabled option.

In the Schedule tab, Select Run on the following date (make sure It’s today’s date). Now select Do not repeat.

In the Task Settings tab, under Notification, You can choose to turn this on, otherwise skip this. Now copy-paste the following code into the Run command area. Now click OK.

docker run -d \
    --name watchtower \
    -v /var/run/docker.sock:/var/run/docker.sock \
    containrrr/watchtower

Accept the warning prompt

When the below warning appears, press OK.

Run the Scheduled Task

You will now see your list of tasks. Select Watchtower, now press Run.

When asked to run, press Yes.

Your app is now Installed

The installation process of Watchtower has now finished. Give it a few seconds to appear in your Docker list.

That’s it. Your Docker container will now automatically update your other containers

Docker Compose and Portainer

If you would prefer to install with Docker Compose or Portainer, use the following code. You can also view a demonstration here.

version: '3.3'
services:
    watchtower:
        container_name: watchtower
        volumes:
            - '/var/run/docker.sock:/var/run/docker.sock'
        image: containrrr/watchtower

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