openshift/v4.16: Stabilize 4.16.0 spec and add openshift 4.17-experimental spec

[yasminvalim]

openshift/v4.16: Stabilize 4.16.0 spec

Stabilize on ignition 3.4, fcos 1.5 and base 0.5 specs

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openshift/v4.16: Remove GRUB password support

Support is still missing in the MCO.

See: https://issues.redhat.com/browse/MCO-630

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openshift/v4_17_exp: Add 4.17.0-experimental spec

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Fixes: #533

[travier]

https://github.com/coreos/butane/blob/main/internal/doc/butane.yaml#L352 > Those need to be updated to list 4.16.0 now as part of the GRUB removal change.

[travier]

Found two more "typos" but there are other missing changes (GRUB password support should be there).

One way to make this easier when creating the new experimental version is to copy the files from before we stabilized the 4.16-exp version and then updating 16 to 17, as everything else will stay the same.

[yasminvalim]

https://github.com/coreos/butane/blob/main/internal/doc/butane.yaml#L352 > Those need to be updated to list 4.16.0 now as part of the GRUB removal change.

I updated it. Can you take a look? Thanks!

[yasminvalim]

Found two more "typos" but there are other missing changes (GRUB password support should be there).

One way to make this easier when creating the new experimental version is to copy the files from before we stabilized the 4.16-exp version and then updating 16 to 17, as everything else will stay the same.

I re-did to avoid mistakes while doing the 4.17.0_exp. I think now is closer to the ideal. Can you take another look and see what is missing? Thanks!

[travier]

I think this looks good. One change needed for the release notes and then I'll do a final check/review.

[yasminvalim]

I think this looks good. One change needed for the release notes and then I'll do a final check/review.

I changed docs/upgrading-openshift.md. Any other docs updated or are we good to go? Thanks!

[yasminvalim]

I think this looks good. One change needed for the release notes and then I'll do a final check/review.

I think everything looks okay now. Feel free to review it again and tell me if there is anything I could improve!

[travier]

Thanks, this looks complete. I did a minor re-split of the commits but changed nothing to what you did.

So LGTM.