[Openshift Commons Image Builders SIG] Image Building and Terminology

[John Doyle]

+1
I prefer something like 'primary image', 'basal image', or 'foundation
image'. I think we can express Diogenes's concept without overloading
the team.

~jd

On Tue, May 24, 2016 at 9:49 AM, Scott McCarty <smccarty at redhat.com> wrote:
> All,
>
>      Last week at the container interlock, one of you (sorry, can't remember
> who, maybe Diogones?) was talking about the Middleware team building "base
> images" which contained VMs.  As a follow up, I wanted to understand what
> was meant by that. I think one of two things could be happening, but I
> didn't want to rat hole the presentation.
>
>
> 1. We are not using the word base image correctly?
>
> 2. We are planning on releasing Middleware base images?
>
> 3. More complicated. Relies on RHEL, but squashed (still has a base image of
> RHEL)
>
>
> If #1, check out this article [1] which I did a ton of homework on and
> references Docker's documentation, which defines a base image as an image
> with no parent layer.
>
>
> If #2, I think the RHEL team and the middleware team should talk. I believe
> we really need to make sure all software in Red Hat products rely on the
> RHEL "base image" and should probably NOT be creating their own base images.
>
> If #3, I think we should discuss what we message to the world (especially
> customers) about how these are built and we should probably be careful
> calling them base images. Perhaps, something like an Application Image or
> Composed Image? Perhaps talking about how they an be used as base images,
> but are actually rely on a RHEL base image? It might not seem important in
> this small case, but I foresee massive confusion if we don't perfectly align
> now before we 1000s of images (currently at just over 100 and growing fast).
>
>
> Best Regards
> Scott M
>
> [1]:
> http://developers.redhat.com/blog/2016/01/13/a-practical-introduction-to-docker-container-terminology/
>
> --
>
> Scott McCarty, RHCA
>
> Technical Product Marketing: Containers
>
> Email: smccarty at redhat.com
>
> Phone: 312-660-3535
>
> Cell: 330-807-1043
>
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>
> When should you split your application into multiple containers?
> http://red.ht/22xKw9i