My scenario: I have an image of a self-hosted Azure agent deployed on Kubernetes and I will need to build & push a docker image of a microservice using that agent.
For that, I recently began learning about Kaniko and while reading the documentation, I realized there was no support for oracle registry. However, as it is said here, "configuring another credential helper should allow pushing to a different registry", but I have no clue how to do that...
I know there are other alternatives, so before proceeding with Kaniko (which was recommended to me), I would first like to know if it is possible to push an image to the oracle registry
Yes it is possible (thanks Harsh Manvar).
After giving the documentation a more throughly read, all I needed to set (that was specific of the Oracle registry) was a kubernetes secret with the valid credentials, formatted as explained this section.
After that it is a matter of following instructions in the kaniko docs.