Upgrading Docker Images on Synology NAS

For owners of a Synology NAS, the following steps can be used to update a container image.

1. Open the Docker application.
2. Click on Registry in the left pane.
3. In the search bar, type the name of the container to upgrade
4. Select the image, click Download and then choose the latest tag.
5. Wait for the download to complete. A notification will appear once done.
6. Click on Container in the left pane.
7. Select your container to upgrade.
8. Stop it by clicking Action->Stop.
9. Clear the container by clicking Action->Clear. This removes the container while keeping its configuration.
10. Start the container again by clicking Action->Start. NOTE: The container may temporarily disappear from the list while it is re-created.