st2api and st2auth always binds to 127.0.0.1

I've set the host param in st2.conf for auth and api to 0.0.0.0, but the config is ignored and the gunicorn process binds to 127.0.0.1:

[root@base-stackstorm2-138-onint ~]# ps -ef | grep gunicorn
st2      20711     1  9 22:50 ?        00:00:00 /opt/stackstorm/st2/bin/python /opt/stackstorm/st2/bin/gunicorn_pecan /opt/stackstorm/st2/lib/python2.7/site-packages/st2api/gunicorn_config.py -k eventlet -b 127.0.0.1:9101 --workers 1 --threads 1 --graceful-timeout 10 --timeout 30
st2      20723     1  9 22:50 ?        00:00:00 /opt/stackstorm/st2/bin/python /opt/stackstorm/st2/bin/gunicorn_pecan /opt/stackstorm/st2/lib/python2.7/site-packages/st2stream/gunicorn_config.py -k eventlet -b 127.0.0.1:9102 --workers 1 --threads 10 --graceful-timeout 10 --timeout 30
st2      20735     1  9 22:50 ?        00:00:00 /opt/stackstorm/st2/bin/python /opt/stackstorm/st2/bin/gunicorn_pecan /opt/stackstorm/st2/lib/python2.7/site-packages/st2auth/gunicorn_config.py -k eventlet -b 127.0.0.1:9100 --workers 1 --threads 1 --graceful-timeout 10 --timeout 30
...

I've tried modifying the hard-coded local addresses in both https://github.com/StackStorm/st2/blob/master/st2api/st2api/gunicorn_config.py#L29 and https://github.com/StackStorm/st2/blob/master/st2auth/st2auth/gunicorn_config.py#L29

as well as the init scripts /etc/init.d/st2api, /etc/init.d/st2auth, which was hard-coding the bind address in the DAEMON_ARGS variable: DAEMON_ARGS="-k eventlet -b 127.0.0.1:9101 --workers 1 --threads 1 --graceful-timeout 10 --timeout 30 --pid ${PIDFILE}".

However, the auth and api endpoints are still binding to 127.0.0.1 after restarting the st2 processes.

I'm using st2 v1.4, and my environment was set up by following the documentation.

My st2.conf looks like:

[exporter]
logging = /etc/st2/logging.exporter.conf

[garbagecollector]
logging = /etc/st2/logging.garbagecollector.conf

[auth]
host = 0.0.0.0
port = 9100
use_ssl = False
debug = True
enable = True
logging = /etc/st2/logging.auth.conf
mode = standalone

# Note: Settings bellow are only used in "standalone" mode
backend = flat_file
backend_kwargs = {"file_path": "/etc/st2/.htpasswd"}

# Base URL to the API endpoint excluding the version (e.g. http://myhost.net:9101/)
api_url = 

[system]
base_path = /opt/stackstorm

[syslog]
host = 127.0.0.1
port = 514
facility = local7
protocol = udp

[log]
excludes = requests,paramiko
redirect_stderr = False
mask_secrets = True

[system_user]
user = stanley
ssh_key_file = /home/stanley/.ssh/stanley_rsa

[messaging]
url = amqp://guest:guest@127.0.0.1:5672/

[ssh_runner]
remote_dir = /tmp
use_paramiko_ssh_runner = True

Perhaps I am missing other hard-coded overrides?

Start by comparing the host and bind handling in st2api/st2api/gunicorn_config.py, st2auth/st2auth/gunicorn_config.py, and the /etc/init.d/st2api and /etc/init.d/st2auth startup arguments. Reproduce the configuration with host=0.0.0.0, restart the st2 processes, and inspect the gunicorn command or listening address. Done means the auth and API endpoints use the configured host rather than always binding to 127.0.0.1.