Copr mock config command shouldn't require authentication:

[praiskup]

$ copr mock-config introspect-mock-chroot fedora-rawhide-x86_64 > /tmp/mock.cfg
ERROR: Failed to determine Copr username from authentication.
ERROR: This operation needs a project ownername specified, fallback to your username failed.

Error: Operation requires API authentication. See the 'AUTHENTICATION' section in man copr-cli(1).

Error: Can not get session for https://copr.fedorainfracloud.org cookie via GSSAPI: stepping context failed: Major (458752): No credentials were supplied, or the credentials were unavailable or inaccessible, Minor (2529639053): No Kerberos credentials available (default cache: KEYRING:persistent:1000)

[praiskup]

Nah, I stupidly did not finish the reading of the error message. I tried to self-analyze, and fix the error output(s) so they'd be more obvious, see #2722. Example:

$ copr mock-config introspect-mock-chroot fedora-rawhide-x86_64 
ERROR: Wrong project argument format 'introspect-mock-chroot'.  Please use the full '<owner>/<project>' argument format, or authenticate to use the short '<project>' format (which means '<your_username>/<project>').

Error: Operation requires API authentication. See the 'AUTHENTICATION' section in man copr-cli(1).

Error: Can not get session for https://copr.fedorainfracloud.org cookie via GSSAPI: stepping context failed: Major (851968): Unspecified GSS failure.  Minor code may provide more information, Minor (2529638919): Server krbtgt/FEDORAPROJECT.ORG@REDHAT.COM not found in Kerberos database