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Mock » Release Notes - Mock 6.0 (+ mock-core-configs v41.5)

A 'simple' chroot build environment manager for building RPMs.

A new plugin, export_buildroot_image, has been added. This plugin can export the generated Mock chroot as an OCI image archive once all the build dependencies have been installed (when the chroot is fully prepared to run /bin/rpmbuild -bb).

A new complementary feature has also been implemented in Mock and can be enabled using the following option:
```
--buildroot-image /tmp/buildroot-oci.tar
```
This feature allows the use of generated OCI archives as the source for the build chroot, similar to how bootstrap_image is used as the base for the bootstrap chroot.

Additionally, this feature can be utilized with an online image:
```
--buildroot-image registry.access.redhat.com/ubi8/ubi
```
In both cases, it is essential to use chroot-compatible images!
Hermetic build process is enhanced by adding used imaged digests into the metadata and confirming that exactly same image is used in the next step.
The mock-hermetic-repo command now implements a retry mechanism for downloading files.
The podman load mechanism for loading OCI archive bootstrap images has been replaced with podman pull oci-archive:/path/to-the.tar.

The chroot_scan plugin has been fixed so it no longer (re)creates resultdir below the global basedir, but under the per-package resultdir (by default in a /var/tmp/ sub-directory). In turn, the resultdir is no longer created with improper ownership, issue#1490.
Make --dnf-cmd compatible with DNF5, fixes issue#1400.
The libexec/create_default_route_in_container.sh file shipped with Mock has been removed, it was never used in practice (relates to issue#113).
The hermetic mode no longer fallbacks to a manual bootstrap installation using the hosts DNF stack; it doesn’t make sense because we don’t have the bootstrap packages pre-downloaded in the local “offline” repository. Fixes issue#1522.
The error message in the podman_check_native_image_architecture() method has been fixed to correctly indicate the expected (system) architecture and the image architecture.
Regression introduced in Mock v5.7 that ignored the dnf_builddep_opts configuration option has been fixed, issue#1496.
The %pre scriptlet installing the mock group is newly not used for modern distributions like Fedora 39+ or Mageia (group/user additions are handled by an RPM built-in feature).

The Fedora ELN template has been updated for the new pullspec of the bootstrap image.
The Fedora ELN ResilientStorage repositories are obsolete and have been removed from the ELN template.
The EPEL 10 configuration has been updated to include the epel and epel-testing repos with the appropriate metalinks. Previously it only included the koji local repo.
Fedora 39 is now end-of-live; the corresponding Mock configuration files have been moved under the /etc/mock/eol directory.
Fix openSUSE-tumbleweed update failure during the second build.
The CentOS Stream 10 configuration has been updated to use quay.io/centos/centos:stream10 as its bootstrap image, instead of the previously used development image.

Thank You!