Merge pull request #1042 from edx/edx-west/db-grader-proxy

skeleton role for db-grader-proxy

playbooks/edx-west/db-grader-proxy.yml

+- hosts: tag_environment_prod:&tag_function_dbgrader
+  sudo: True
+  vars_files:
+    - "{{ secure_dir }}/vars/users_db_grader.yml"
+  vars:
+    secure_dir: '../../../configuration-secure/ansible'
+    local_dir:  '../../../configuration-secure/ansible/local'
+  roles:
+    - role: gh_users
+      gh_users:
+        - sefk
+        - jbau
+        - jrbl
+        - jaericson
+#    - apache
+    - db-grader-proxy

playbooks/roles/db-grader-proxy/defaults/main.yml

+---
+COMMON_BASE_DIR: /edx
+COMMON_APP_DIR: "{{ COMMON_BASE_DIR}}/app"
+
+db_grader_proxy_repo: 'https://github.com/Stanford-Online/db-grader-proxy.git'
+db_grader_proxy_dir: '{{COMMON_APP_DIR}}/db-grader-proxy'
+db_grader_proxy_commit: 'HEAD'
+db_grader_proxy_port: 8000
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playbooks/roles/db-grader-proxy/tasks/main.yml

+---
+- name: db-grader-proxy | clone repo
+  git: dest={{db_grader_proxy_dir}} repo={{db_grader_proxy_repo}} version={{db_grader_proxy_commit}}
+
+- name: db-grader-proxy | write out db-grader-proxy apache site
+  template: dest=/etc/apache2/sites-available/db-grader-proxy src=db-grader-proxy.j2 owner=root group=root mode=0644
+
+- name: db-grader-proxy | enable db-grader-proxy site
+  command: a2ensite db-grader-proxy
+
+- name: db-grader-proxy | restart apache
+  service: name=apache2 state=restarted

playbooks/roles/db-grader-proxy/templates/db-grader-proxy.j2

+<VirtualHost *:{{db_grader_proxy_port}}>
+    WSGIScriptAlias / {{db_grader_proxy_dir}}/db_grader_proxy/wsgi.py
+    ErrorLog ${APACHE_LOG_DIR}/django-proxy-error.log
+    CustomLog ${APACHE_LOG_DIR}/django-proxy-access.log combined
+    <Directory {{db_grader_proxy_dir}}/db_grader_proxy>
+    <Files wsgi.py>
+        Order deny,allow
+        Allow from all
+    </Files>
+    </Directory>
+
+    WSGIDaemonProcess grader threads=10 maximum-requests=10000 python-path={{db_grader_proxy_dir}}
+    WSGIProcessGroup grader
+</VirtualHost>
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