Hi all,   I've been struggling to deploy HDP 2.6.5 via docker. I downloaded and ran the deploy script but kept receiving this error for this line of command:   + docker exec -t sandbox-hdp sh -c rm -rf /var/run/postgresql/*; systemctl restart postgresql; Failed to get D-Bus connection: No such file or directory   Calling systemctl thru the container CLI gives the same error. I used this script to replace the container's /bin/systemctl but was unable to start postgresql ( systemctl start -v postgresql yields WARNING:systemctl:No PIDFile for forking '/usr/lib/systemd/system/postgresql.service' WARNING:systemctl:forking start not active ) which resulted in unsuccessful start of ambari-server and localhost:1080 kept giving 502 bad gateway. Any idea how to solve this? Thanks! ... View more