FWIW, there is a ubuntu-xenial-postgresql/install.d/31-fix-init-script that changes the pidfile...however it is either not being run or overwritten later, as the built image (as indicated above) has the wrong pidfile.
FWIW, there is a ubuntu- xenial- postgresql/ install. d/31-fix- init-script that changes the pidfile...however it is either not being run or overwritten later, as the built image (as indicated above) has the wrong pidfile.