[Enhancement]: Prepend "library/" to official docker image "alpine"

[akurth]

Module

Core

Proposal

Hello,

would it be possible to prepend "library/" to the official alpine docker image pulled in ("library/alpine"); that’s where the image is actually located.

Reason: it is often desired to use a dockerhub mirror (because of rate limits), which we achieve by setting the following property: "hub.image.name.prefix=our.company.mirror/". While this works fine for the testcontainers images, it doesn’t work for the official docker images like "alpine". We have to work around that by setting the property "tinyimage.container.image=library/alpine:3.16", which is deprecated and discouraged according to the docs.

[eddumelendez]

Closing as duplicated. See #5612

[akurth]

This case is a bit different than #5612.

It is perfectly fine for us to use the asCompatibleSubstituteFor workaround when instantiating e.g. postgres containers in our code. The "alpine" image is not actively used by ourselves though; it is implicitly used by the testcontainers framework. Since we don’t have control over this one, we have to use the deprecated property tinyimage.container.image.