Dockerfile: Use a full base image

[cgwalters]

I'm trying to use butane in a Dockerfile as part of a multi-stage
build, and not having anything except the binary in the container
breaks that since Dockerfile wants to invoke things via /bin/sh.

Use ubi8 as a base.

[bgilbert]

Hmm, yeah, that makes sense. Let's use registry.fedoraproject.org/fedora:35 or registry.fedoraproject.org/fedora-minimal:35 as a base though. We usually don't use the UBI in our upstreams.

Also, is the path change important for your use case? I'm wondering if that risks a compat break somewhere.

[cgwalters]

We usually don't use the UBI in our upstreams.

There's no restrictions on UBI by design; a specific advantage over fedora as a host here is we don't need to churn this as often.

But we are unlikely to be consistent on this, and it doesn't matter much to me so...switched to fedora.

[cgwalters]

Also, is the path change important for your use case?

Nah, I just thought it was cleaner. Reverted.

[bgilbert]

There's no restrictions on UBI by design; a specific advantage over fedora as a host here is we don't need to churn this as often.

Yeah, I know. But I'd feel weird about a community project using a non-community base image. Thanks for making the switch.