Start and enable iscsid
Use new password script names

(cherry picked from commit 4e5655e240ea142e51f5bc208e7e46630806c8ce)
Don't fail if firewalld is not installed

firewalld is not installed on the Fedora cloud images, which means
it can't be stopped or masked during the step that makes the
system use iptables.  Print a message instead of failing the
script in that situation.

(cherry picked from commit 6bf6c9d1c2c31e3130cc93e5687a691706856319)
Make sure which is installed
Disable selinux on the rabbit node

(cherry picked from commit bcea72e8bb25663d748a2894e8158c756404d183)