Re: Fedora & Containers

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On 2/25/20 12:05 PM, Michal Schorm wrote:
> Hello,
>
> Will anybody be able to explain to me the current state of the
> containers & containerization in Fedora, please?
>
> I have some questions, but the more I searched for whom & where to
> ask, the more confused I became.
>
> --
>
> 1) There ́s an IRC on freenode, '#fedora-containers' channel.
> The TOPIC set contains the following message:
> "The place for container runtimes and application containers.
> Forums @ https://discussion.fedoraproject.org/c/containers,
> visit the site @ https://containers.fedoraproject.org
> (website operational at some point in August)."
> However no link mentioned are accessible.
>
> 2) There is 'Fedora Container & Tools Documentation' [1]
> It is only half-filled with information, some part missing entirely.
> Even parts as 'Container Guidelines' [2].
> Btw the wiki gladly redirects there ^ [3].
> Btw there are some scratch notes about the guidelines from damn 2017
> [4], which google offers me rather than the actual guidelines (because
> they don't exist)
>
> 3) So ... who is in charge of it? Whom to contact? How? Where?
> Does Fedora count with Containers or does it already thrown it overboard?
>
> 4) The container I am maintainer of (in pagure in 'container'
> namespace) is not branched automatically. The last branch is 'f30',
> but now I want to update it and add the missing branches. I have no
> idea how should I do it though, since (1) (2) are such a mess.
> I can try 'git push', but anyway, it won't solve the issue, it's not
> branched automatically.
>
> 5) The Dockerfile (are we still using this name? shouldn't it be
> 'containerfile' now, with podman?)

Containerfile will not work with Docker by default, so if you want to
stick to Dockerfile, it is fine.

> starts with line like:
> " FROM registry.fedoraproject.org/f30/....."
> How can I substitute the Fedora release version with a variable, so I
> can share the same content amongst branches for different Fedora
> releases?

You could specify this as ARG and then have the caller pass in the
version of Fedora


ARG=RELEASE=f31

...

 FROM registry.fedoraproject.org/RELEASE/....


...
podman build --build-arg RELEASE=f30 -f Dockerfile .



> [1] https://docs.fedoraproject.org/en-US/containers/
> [2] https://docs.fedoraproject.org/en-US/containers/guidelines/guidelines/
> [3] https://fedoraproject.org/wiki/Container:Guidelines
> [4] https://fedoraproject.org/wiki/Talk:Container:Guidelines
>
> --
>
> Michal Schorm
> Software Engineer
> Core Services - Databases Team
> Red Hat
>
> --
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