Steve Baker eb395ec558 Remove EOLed CentOS 7 and RHEL 7
CentOS 7 reached EOL on 30th June 2024[1] and RHEL 7 ended its
maintenance support 2 phase[2] the same date.

This change removes the ablity to build images derived from these base
images.

The centos and centos-minimal elements now default to a DIB_RELEASE
value of 9-stream.

[1] https://www.redhat.com/en/topics/linux/centos-linux-eol
[2] https://www.redhat.com/en/technologies/linux-platforms/enterprise-linux/rhel-7-end-of-maintenance

Change-Id: Ic50e08d9f84bbd319129be236d799eade5f40be8
2024-07-05 09:53:29 +12:00
..
2018-01-18 15:27:00 +08:00
2016-03-13 16:24:59 +00:00
2016-05-02 01:29:17 -05:00
2020-06-05 12:04:30 +02:00