[freeipa PR#6120][opened] ipatests: Adding --no-dnssec-validation option for healthcheck

[menonsudhir]

URL: https://github.com/freeipa/freeipa/pull/6120
Author: menonsudhir
 Title: #6120: ipatests: Adding --no-dnssec-validation option for healthcheck
Action: opened

PR body:
"""
healthcheck related tests are failing because of the below issue 
"client @0x7f8ee47c4d48 : servfail cache hit (CD=0)" and as a result healthcheck related packages 
are not downloaded on test system.
Hence adding the --no-dnssec-validation option to install_master and install_replica function

"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/6120/head:pr6120
git checkout pr6120