kris@dask:~$ uname -a
Linux dask 4.9.36-x86_64-linode85 #1 SMP Thu Jul 6 15:31:23 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

kris@dask:~$ sudo cat /etc/postgresql/9.5/main/pg_hba.conf
...

local   all             postgres                                peer

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     md5
# IPv4 local connections:
host    all             all             127.0.0.1/32            md5
# IPv6 local connections:
host    all             all             ::1/128                 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local   replication     postgres                                peer
#host    replication     postgres        127.0.0.1/32            md5
#host    replication     postgres        ::1/128                 md5

kris@dask:/home/dask/www/code/daskretreats_org$ cat wsgi.py
"""
WSGI config for daskretreats_org project.

It exposes the WSGI callable as a module-level variable named ``application``.

For more information on this file, see
https://docs.djangoproject.com/en/1.10/howto/deployment/wsgi/
"""

import os

from django.core.wsgi import get_wsgi_application
from mezzanine.utils.conf import real_project_name

os.environ.setdefault("DJANGO_SETTINGS_MODULE",
                      "%s.settings" % real_project_name("daskretreats_org"))

application = get_wsgi_application()

(venv) dask@dask:~/www/secrets$ python
Python 2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
>>> f = open("postgres_key")
>>> passwd = f.read().strip()
>>> conn = psycopg2.connect("dbname=daskretreats_org user=dask password=%s" % passwd)
>>> conn.dsn
'password=xxx user=dask dbname=daskretreats_org'

kris@dask:~$ cat /etc/apache2/sites-enabled/daskretreats_org.conf
<VirtualHost *:80>
        ServerName daskretreats.org
        Alias /static /home/dask/www/html/static
        <Directory /home/dask/www/html/static>
                Require all granted
        </Directory>

        <Directory /home/dask/www/code/daskretreats_org>
                <Files wsgi.py>
                        Require all granted
                </Files>
        </Directory>

        WSGIDaemonProcess daskretreats_org python-home=/home/dask/www/venv python-path=/home/dask/www/code
        WSGIProcessGroup daskretreats_org
        WSGIScriptAlias / /home/dask/www/code/daskretreats_org/wsgi.py
</VirtualHost>