dockerfile: install pwgen package (has been removed from the base image)
dockerfile: install pwgen package (has been removed from the base image)

zires/docker-postgresql,sameersbn/docker-postgresql,whatever4711/rpi-postgresql,crobays/docker-postgresql,timclassic/docker-postgresql,bokysan/docker-postgresql,logandg/docker-postgis,boky8/docker-postgresql,mental-docker/postgresql,Downchuck/docker-postgresql,abner/docker-postgresql,jaceju/docker-postgresql,markrowsoft/docker-postgres-bdr,arkkanoid/docker-postgresql