📦 Publish a container image for kcctl to DockerHub

[gunnarmorling]

Hey @aalmiray, is this something JReleaser would help with as well?

[aalmiray]

Yup, JReleaser can make it happen

[aalmiray]

@gunnarmorling we need the following information:

• a username/password for publishing to DockerHub. Store the password as a GitHub secret, I suggest using KCCTL_DOCKER_PASSWORD.
• a DockerHub repository. The computed default would be kcctl/kcctl but feel free to pick a different name.
• pick the base image. I think executables generated with Graal as we have them today require glibc, in which case that rules out any Linux Alpine base image. We could go with scratch or an Ubuntu based image.

[aalmiray]

Slight complication, the docker packager expects .zip or .jar files as inputs. We currently have .tar.gz for the Linux artifact. The quick workaround is to use the .zip produced by the build, making sure the zip file is not signed/released (which JReleaser 0.6.0 can do).

[gunnarmorling]

I'll try and register the kcctl/kcctl repo. Re the base image, the Quarkus build can produce an image itself (either based on RHEL UBI, or distroless).

[aalmiray]

That's the thing, at the moment JReleaser creates a Dockerfile based on a template, then creates the image, then published to a registry of your choice. It does not accept publishing a container image that was built from the outside, yet.

[gunnarmorling]

Ok, I see. I suppose we still can use the existing Dockerfile, right? One other question: can we deploy to quay.io instead of DockerHub? It seems the latter requires a paid plan now for setting up new organizations :(

[aalmiray]

Yes, we can deploy to Quay as well. You could setup a personal account at DockerHub, that's what I did for JReleaser, I did not migrate that account to org.

[aalmiray]

jreleaser/jreleaser#358 Prevents the use of the quay.io/quarkus/quarkus-distroless-image:1.0 image however registry.access.redhat.com/ubi8/ubi-minimal:8.4 may be used. These two images are the ones defined by the Quarkus templates.

[mdwajid095]

Hello All,

I'm using kcctl as container. Really a nice, well readable tool for kafka connect.
Github: https://github.com/mdwajid095/wowsome/tree/main/kcctl
DockerHub: https://hub.docker.com/r/mdwajid095/kcctl

I think, we should include the docker image part in this project here itself. So, that everyone can use it. Thanks!