Convert xserver gunicorn to configuration file

playbooks/roles/xserver/defaults/main.yml

@@ -4,6 +4,7 @@
 XSERVER_NGINX_PORT: 18050
 
 XSERVER_GUNICORN_EXTRA: ""
+XSERVER_GUNICORN_EXTRA_CONF: ""
 XSERVER_RUN_URL: ''
 XSERVER_LOGGING_ENV: 'sandbox'
 XSERVER_SYSLOG_SERVER: ''

playbooks/roles/xserver/tasks/deploy.yml

@@ -11,6 +11,13 @@
     state=link force=yes
   when: not disable_edx_services
 
+- name: "add gunicorn configuration file"
+  template: >
+    src=xserver_gunicorn.py.j2 dest={{ xserver_app_dir }}/xserver_gunicorn.py
+  sudo_user: "{{ xserver_user }}"
+  notify:
+    - restart xserver
+
 - name: checkout code
   git: >
     dest={{ xserver_code_dir }} repo={{ xserver_source_repo }} version={{xserver_version}}

playbooks/roles/xserver/templates/xserver.conf.j2

 [program:xserver]
 
-command={{ xserver_venv_bin }}/gunicorn --preload -b {{ xserver_gunicorn_host }}:{{ xserver_gunicorn_port }} -w {{ xserver_gunicorn_workers }} --timeout=30 --pythonpath={{ xserver_code_dir }} {{ XSERVER_GUNICORN_EXTRA }} pyxserver_wsgi:application
+command={{ xserver_venv_bin }}/gunicorn -c {{ xserver_app_dir }}/xserver_gunicorn.py  {{ XSERVER_GUNICORN_EXTRA }} pyxserver_wsgi:application
 
 user={{ common_web_user }}
 directory={{ xserver_code_dir }}

playbooks/roles/xserver/templates/xserver_gunicorn.py.j2

+"""
+gunicorn configuration file: http://docs.gunicorn.org/en/develop/configure.html
+
+{{ ansible_managed }}
+"""
+
+preload_app = True
+timeout = 30
+bind = "{{ xserver_gunicorn_host }}:{{ xserver_gunicorn_port }}"
+pythonpath = "{{ xserver_code_dir }}"
+workers = {{ xserver_gunicorn_workers }}
+
+{{ XSERVER_GUNICORN_EXTRA_CONF }}