Ticket 50197 - Container integration improvements
    
    Bug Description: During the container integration process
    I have noticed a small number of remaining issues.
    
    Fix Description:
    * dm password is left as randomised in container install
    * nss_ssl only removes dir content, not the directory itself
    * basic tests rely on incorrect assumptions about file perms,
      hostnames and ports.
    
    https://pagure.io/389-ds-base/issue/50197
    
    Author: William Brown <william@blackhats.net.au>
    
    Review by: spichugi (Thanks!)