On Thu, Jan 21, 2021 at 12:40 PM Ken Dreyer kdreyer@redhat.com wrote:
On Thu, Jan 21, 2021 at 1:46 AM aleksander.baranowski via CentOS-devel centos-devel@centos.org wrote:
When you have access to RHEL repo you can use repoquery to download comps (and other metadata in EL8 version). Then you have to debrand them.
I checked the comps XML files from BaseOS and AppStream today, and those XML files are different than this file in Git.
For example, the BaseOS Yum repo's comps.xml has one "file-sever" group, and AppStream's comps.xml has another "file-system" group, and they are combined in the comps file that CentOS uses for Pungi.
I can explain this.
Internally, we have a single comps file that looks almost identical to the CentOS one referenced except for the branding changes already mentioned. It delineates packages between repos using "variant="BaseOS" or variant="AppStream", etc. For groups that have packages split across repos, you'll see both variant statements within the group definition. When pungi runs, it will take the single comps file and deconstruct it based on variant statements to produce per-repository comps definitions. That way the comps groups don't include packages that are not actually in that repository.
On a system attached to these repositories, yum will actually pull the comps data from both groups and recombine them to the full group definition. There's an example below that illustrates this.
josh
[jwboyer@vader ~]$ podman run -it --rm ubi8 Trying to pull registry.access.redhat.com/ubi8... Getting image source signatures Copying blob cca21acb641a [--------------------------------------] 0.0b / 0.0b Copying blob d9e72d058dc5 [--------------------------------------] 0.0b / 0.0b Copying config 3269c37eae done Writing manifest to image destination Storing signatures [root@2db2390ba9d6 /]# yum --disablerepo=* --enablerepo=rhel-8-for-x86_64-baseos-rpms groupinfo file-server Updating Subscription Management repositories. Unable to read consumer identity Subscription Manager is operating in container mode. Red Hat Enterprise Linux 8 for x86_64 - BaseOS 17 MB/s | 27 MB 00:01 Last metadata expiration check: 0:00:03 ago on Thu Jan 21 21:07:20 2021.
Group: File and Storage Server Description: CIFS, SMB, NFS, iSCSI, iSER, and iSNS network storage server. Mandatory Packages: cifs-utils gssproxy nfs-utils nfs4-acl-tools samba Optional Packages: isns-utils [root@2db2390ba9d6 /]# yum --disablerepo=* --enablerepo=rhel-8-for-x86_64-baseos-rpms --enablerepo=rhel-8-for-x86_64-appstream-rpms groupinfo file-server Updating Subscription Management repositories. Unable to read consumer identity Subscription Manager is operating in container mode. Red Hat Enterprise Linux 8 for x86_64 - AppStre 14 MB/s | 25 MB 00:01 Last metadata expiration check: 0:00:04 ago on Thu Jan 21 21:07:51 2021.
Group: File and Storage Server Description: CIFS, SMB, NFS, iSCSI, iSER, and iSNS network storage server. Mandatory Packages: cifs-utils gssproxy nfs-utils nfs4-acl-tools samba targetcli <---this showed up from AppStream now Optional Packages: isns-utils [root@2db2390ba9d6 /]#