Unusable application

[Lanhild]

I'm guessing 9.1.3 rendered the application unusable, as the issue appeared later than the latest update of this app.

Pushing/pulling an image from a remote works correctly. However, attempting to pull an image from the same server doesn't work at all.

For instance:

• I have a registry @ registry.cloudron.local
• I have an app @ app.cloudron.local, using an image from the registry, on the same cloudron.

Whenever I attempt to update this application with a new image, the pull never works.

Mar 19 18:51:04 box:docker Attempt 1 failed. Will retry: Unable to pull image registry.cloudron.local/app.image:2.0.13. registry error: {"reason":"server error","statusCode":500,"json":null}

In the registry configuration in Cloudron settings, the error Invalid serverAddress: socket hang up appears whenever I attempt to save the private registry settings.

In the registry application logs, there is the following line, appearing intermittently:

Mar 19 20:32:18 time="2026-03-20T00:32:18.895638941Z" level=error msg="traces export: Post \"https://localhost:4318/v1/traces\": dial tcp [::1]:4318: connect: connection refused" go.version=go1.23.7 instance.id=redacted service=registry version=3.0.0

I have multiple Cloudrons, all with a registry application installed and facing the same issue.

As mentioned in the beginning of my topic, pulling from a remote works.

Connecting the private registry registry.cloudron.local in my.other-cloudron.local works perfectly. It seems like there might be a DNS issue.

Feel free to ask for more information.

[Lanhild]

@girish pinging for visibility.

[joseph]

@lanhild I just tried to reproduce this and it seems to work fine. Have you added the local registry app as a Private docker registry i.e under System -> Docker -> Registries? The local registry app is not automatically available for app install (same cloudron or different cloudron).

[robi]

It may be the https issue which local to local can't connect

[joseph]

I assumed .local was like .example. Did you literally mean .local ?

[Lanhild]

@joseph I used .local for the sake of my example

[Lanhild]

@joseph said:

@lanhild I just tried to reproduce this and it seems to work fine. Have you added the local registry app as a Private docker registry i.e under System -> Docker -> Registries?

That's what I'm attempting to do, but it results in the error I mentioned.

[joseph]

In the registry configuration in Cloudron settings, the error Invalid serverAddress: socket hang up appears whenever I attempt to save the private registry settings.

OK, I missed this one. Can you try docker login on the server itself and see if that works ?

[Lanhild]

@joseph it doesn't, gives me a timeout error. I'll add relevant logs in a few minutes.