Consider an ecosystem-wide, software-agnostic registry configuration file about skopeo HOT 15 CLOSED

cc @baude

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Would it make sense to introduce a system-wide configuration file, perhaps /etc/containers/docker-registries.yaml, which allows per-registry and per-repository configuration, to be used by all of the tools if possible?

I would have loved Docker to have registries conf (ala git remote maybe) but that never happened and maybe it'll never happen..... sadly...

I'm all for this though and what you've highlighted sounds good to me 👍

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I like the idea.
@cgwalters WDYT?

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Docker not having a configuration file at this point is just nuts. Perhaps this was Solomon's idea to prevent other tools from easily understanding the configuration.

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That's probably it yeah..

from skopeo.

https://docs.docker.com/engine/reference/commandline/dockerd/#/linux-configuration-file or am I missing something?

from skopeo.

That's intended mainly for configurations that can be live reloaded. They do not intend (as the last time I talked to them) to store registries configuration options there and the configuration isn't widely used though.

from skopeo.

I did not realize that that was added. We really should start to move towards using this configuration file. Having docker-storage-setup edit this file and setting things like selinux-enabled/log-driver in here would be nice.
@rhvgoyal WDYT

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@lsm5 PTAL

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Please note that there are pitfalls with the config file when for instance a flag is both defined in the the config and via flag to dockerd. I never considered the config file for this and other reasons..

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Yes it looks like the dockerd will refuse to start, but we really want to start to minimize the use of /etc/sysconfig/docker, since we were really abusing this just because dockerd did not have a config file.

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/etc/containers/registries.d from #170 ( https://github.com/containers/image/blob/master/docs/registries.d.md ) is a start.

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👍

from skopeo.

Seems like this is done.

from skopeo.

Seems like this is done.

Not to the full extent, but https://github.com/containers/image/tree/master/pkg/sysregistriesv2 is basically it, yes.

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