Integrate a private docker registry

[msbt]

I'm with @robi on this one. At the moment I'm running my own docker-registry for app development on a virtual machine which I made somewhat maintainable over time, but it would be great if even that part could be handled by Cloudron as well.

An app which just runs the registry alongside the build server, of which I put the credentials in each Cloudron that gets apps pushed from it or something like that. I haven't checked out the thing @mario made, but it sounds something I might be interested in.

Edit: this probably really is an edge case, because most of the users are happy with the apps from the store, but if you do custom work for customers (especially if it's more than one), you would want an easy to set up, self-hosted docker registry that's password protected (which mine isn't at the moment, but all my apps are hosted on Cloudrons gitlab anyways).

[adrw]

I'm in strong agreement with @robi and @msbt, I'm working on a custom app and using Cloudron as a stripped down much cheaper alternative to AWS for hosting and a private docker registry is the last missing puzzle piece since I don't want to publish the image in a public Docker registry. A Cloudron private docker registry would be greatly appreciated and I'd be happy to pitch in with testing from a Github Actions CI use case or local publishing.

[plusone-nick]

+1 on this for me too. Using Wappler to build no-code/low-code nodejs apps and need a private repo, ideally within cloudron

[ekevu123]

I just came across the same issue. I would like to push my images to the Private Docker Registry app which is on Cloudron as well - and it would be totally in-brand to allow both apps to interact with each other.

I tried changing the link in the config file according to the docs, but the standard is still set to docker.io.

[msbt]

Are you using the build-app? If so, did you adjust the config.json with your registry? You can also try cloudron build --set-repository and enter your private registry

[ekevu123]

I did adjust the config, but in the end, the tool just used docker.io/MY_LINK. If I use cloudron build without the build service, won't this build the image locally, but then push it into mr repository?

[nebulon]

Yes the build service is only optional in case a local docker setup is not viable or the upload speed is low. But otherwise by default it would build it locally and then push to the configured repository.

[ekevu123]

I lost track of this thread. Can I just confirm the original question? It seems like the build service works only with docker.io.

I tried changing it in docker.json, but all it does is that it adds my repository address to docker.io/library, which fails. I also tried cloudron build --set-repository, but that leads to the same result.

[nebulon]

does the image repository you set with --set-repository also contain the domain of your target registry? I think docker defaults to docker.io if not provided.

[ekevu123]

I got it. So, apparently, this works for me when I set the --set-repository using this structure: mydocker.registry.com/my-repo. It probably works then as well if I put the repo into the build service config, but then I could only push to one repo.
So, the solution seems to be to always manually specify the repository as well. Also, I copy-pasted my docker registry link, because it is quite long, and adding https:// at the beginning causes problems, but it works without it.

But at least I have a working way of handling this now, thank you! That is very helpful as I don't always have fast internet.

[nebulon]

Right having unreliable and slow internet connection was one of the main reasons for us to create that buildservice app.

For the repository URLs, this is more like a docker quirk. The build service just passes those strings forward to docker.