DCW VS watchtower

To "mass-check and mass-update" containers from the commandline, dockcheck is very light and useful. A simple dockcheck.sh -a -p for example would check all deployed containers for image updates and if there are any, pull them, then restart the container and at the end, cleanup unused images to free up diskspace. There is also a version with a web interface, DCW.

DCW (dockcheck-web) is based on the above dockcheck but has a web-ui.

If you want to update images, try dockcheck or DCW.

Dockcheck-web

Checkout dockcheck-web A webpage showing available image updates for your running containers.

Hi, I will start pushing the new update for beta soon. Just finished the major changes for the exporters. It will be a new image and a secondary image for the exporter. Keep and eye on my now hidden repo palleri/dcw to be public.

Check out the new image with exporter functionality. https://github.com/Palleri/DCW (multiple instances)

Related: https://github.com/containrrr/watchtower

> if you're using the docker image, upgrades are a breeze. Just bump the tag on the image, redeploy, and you're done.

Or you could just run Watchtower beside it and it will automatically update your docker containers. https://github.com/containrrr/watchtower If you are OK with automated updates.

So i primarily use containers on my local machine walled off from the internet, so it's not a big concern for me. Watchtower [1] is popular among home server users too which automatically updates containers to the latest image.

For production uses I think companies generally build their own containers. They would have a common base linux container and build the other containers based off that with a typical CI/CD pipeline. So if glibc is patched, it's probably patched in the base container and the others are then rebuilt. You don't have to patch each container individually, just the base. Production also minimizes the scope of containers with nothing installed except what's necessary so they have few dependencies.

[1] https://github.com/containrrr/watchtower

You can use Watchtower (https://containrrr.dev/watchtower/) that solves problem of manual pulling on VPS.

I checked https://containrrr.dev/watchtower/ and Arguments, but I don't understand where to attach that using portainer.

Again, there are options to automate some of the burden here by using tools such as Watchtower.

Have you ever deployed a Docker app on a server, but everytime you push a new version of your image to a Docker registry you need to manually restart your app? If you want to automate this restarting, this blog post is for you! I am now going to show you how you can do this with literally 1 simple command using Watchtower!