CentOS mirror updates

[monstermunchkin]

• sources/centos: Disable fastestmirror plugin
• sources/centos: Use baseurl instead of metalink for repos

[tomponline]

Why does need to be disabled?

[monstermunchkin]

I'm not sure whether fastest mirror overrides the set baseurl. I disabled it to make sure it doesn't.

[tomponline]

I'm not sure we should be encoding arbitrary mirrors in the build code, can we specify these in our own jenkins templates?

[monstermunchkin]

I'm not sure we should be encoding arbitrary mirrors in the build code, can we specify these in our own jenkins templates?

Unfortunately not. This is part of the unpack code and it's what's failing on Jenkins.

[tomponline]

Can we add new variable options that can be specified by the jenkins job. Otherwise all users of the image will be pinned to the Canada mirror right?

[tomponline]

Also why different mirrors for different repos BTW?

[tomponline]

What is failing on Jenkins?

[monstermunchkin]

Also why different mirrors for different repos BTW?

It's different mirrors for different versions. 9-Stream isn't available on https://muug.ca.

[stgraber]

The mirror selection stuff in CentOS/Fedora gives you a very long list of A and AAAA records, so far so good.
Except that a bunch of the AAAA are plain broken, server never answers and things timeout, making the whole image build fail.

[tomponline]

Ah so this is just for the build step. But the dnf config inside the finished image will still use the fastest mirror plugin ?

[monstermunchkin]

Can we add new variable options that can be specified by the jenkins job. Otherwise all users of the image will be pinned to the Canada mirror right?

That's correct. We could possibly add something like this in the future. For now though, this fix is fine.

[tomponline]

Oh that's ashame. I'll log an issue so we can remember to fix this later. Thanks for explaining.

[monstermunchkin]

Ah so this is just for the build step. But the dnf config inside the finished image will still use the fastest mirror plugin ?

For now, yes. I'll be setting a fixed mirror for that as well, because it's probably going to fail, too.

[stgraber]

For now, yes. I'll be setting a fixed mirror for that as well, because it's probably going to fail, too.

We probably should revert things just so we don't end up with our users being dependent on our one preferred mirror.
Should be pretty easy to save the config and restore it afterwards.