Provide a table for Ceph support timelines

[Ponnuvel Palaniyappan]

Currently the "supported Ceph versions" info is available in a few places: [0], [1], and [2].
But none of them provide a complete information. Even then, it's not straightforward to work out the EOL dates for a given Ceph version.

Something similar to OpenStack's [2] that clearly states the timelines for Ceph packages from both Ubuntu and UCA.

[0] https://ubuntu.com/ceph/docs/supported-ceph-versions
[1] https://wiki.ubuntu.com/OpenStack/CloudArchive
[2] https://ubuntu.com/openstack/docs/supported-versions

[Nobuto Murata (nobuto)]

I personally prefer all Ubuntu related supported version to go to:
https://ubuntu.com/about/release-cycle

That would make a refresh process easier since the product management team can check and update those in a centralized place.

Maybe is it worthy to file an issue to ubuntu.com and/or reach out to the product management team:
https://docs.google.com/document/d/1-l3B7AoyDoETaL80UhlfEWCVKmMWPdy3zoF5LpsGcYQ/edit