Enable OpenSCAP security profiles for CentOS Stream 8 installer

gistfile1.txt

# I'm facing similar issue like [1] and [2],
# as of today (2021-09-18) CentOS Stream 8 installer does not list any OpenSCAP backed "Security Profile".
# By reading source code at [3] and [4], I figured out a way to make CentOS Stream 8 to read and use CentOS 8 and RHEL 8 security profiles.

#################################################### WARNING ##########################################################
# CentOS 8 or CentOS Stream 8 are not certified with RHEL 8 profiles, you may not get them through compliance audits. #
# Use this at your own risk.                                                                                          #
#######################################################################################################################

# Step 1, at the language selection page, don't click next, but switch to a virtual console, type the 2 commands below
cd /usr/share/xml/scap/ssg/content/
ln -s ssg-rhel8-ds.xml ssg-cs8-ds.xml

# Step 2, switch back to GUI installer, choose a language then continue, you may choose a security profiles from the list

# Step 3, watch the installer, right after it completes installation of all packages, type the following 2 commands
# Use this command to watch for content:  `watch ls /mnt/sysroot/usr/share/xml/scap/ssg/content`
cd /mnt/sysroot/usr/share/xml/scap/ssg/content/
ln -s ssg-rhel8-ds.xml ssg-cs8-ds.xml

# Step 4, wait for the installer to finish.

# References
# [1] https://github.com/OpenSCAP/oscap-anaconda-addon/issues/105
# [2] https://forums.centos.org/viewtopic.php?f=57&t=77643
# [3] https://github.com/OpenSCAP/oscap-anaconda-addon/blob/rhel8-branch/org_fedora_oscap/gui/spokes/oscap.py#L322
# [4] https://github.com/OpenSCAP/oscap-anaconda-addon/blob/rhel8-branch/org_fedora_oscap/common.py#L69