Without a doubt, after installing several images on your Synology NAS using the Docker package, you are wondering how to update your containers quickly and easily. If you have installed Pi-Hole, AdGuard, Splunk or the UniFi Controller by following the guides in this blog, you may need updates for your containers. Read on and find out how to update your image/container.
Open the Docker package and download the new latest image from the Registry tab, for example Pi-Hole, AdGuard etc.
When the download is complete, go to the Container tab and stop the container you are updating.
Next, select the container and, using the Action drop-down menu, select Clear (Container tab). The container will be removed from the list and recreated using the image you downloaded in STEP 2.
Start the new container. Once it loads, it is ready for use.
Note: If your configs are stored on your Synology NAS, they will be recognized, and the container should run as designated.
Note: You can also use Watchtower to update your Docker images/containers.