Comment 11 for bug 1772601

@xnox the starting of it is located in this python subprocess call in the function:

    def start(ignore_failure=False):

https://api.jujucharms.com/charmstore/v5/postgresql/archive/reactive/postgresql/postgresql.py

        subprocess.check_call(['pg_ctlcluster',
                               version(), 'main', 'start',
                               # These extra options cause pg_ctl to wait
                               # for startup to finish, so we don't have to.
                               '--', '-w', '-t', str(STARTUP_TIMEOUT)],
                              universal_newlines=True)