First draft of a statscache/frontend role.

playbooks/groups/statscache.yml

@@ -47,7 +47,7 @@
   - apache
   - role: openvpn/client
     when: env != "staging"
-  # TODO -- include statscache/frontend here
+  - statscache/frontend
 
   tasks:
   - include: "{{ tasks }}/mod_wsgi.yml"

roles/statscache/frontend/files/statscache.wsgi

@@ -0,0 +1,8 @@
+# http://stackoverflow.com/questions/8007176/500-error-without-anything-in-the-apache-logs
+import logging
+import sys
+logging.basicConfig(stream=sys.stderr)
+
+import statscache.app
+application = statscache.app.app
+#application.debug = True  # Nope.  Be careful!

roles/statscache/frontend/tasks/main.yml

@@ -0,0 +1,74 @@
+---
+# Configuration for the Fedora Notifications webapp
+
+- name: install needed packages
+  yum: pkg={{ item }} state=present
+  with_items:
+  - statscache-web
+  - python-psycopg2
+  - libsemanage-python
+  notify:
+  - restart apache
+  tags:
+  - statscache
+  - statscache/frontend
+
+- name: copy statscache app configuration
+  template: >
+    src={{ item }} dest=/etc/fedmsg.d/{{ item }}
+    owner=apache group=apache mode=0600
+  with_items:
+  - statscache.py
+  notify:
+  - restart apache
+  tags:
+  - statscache
+  - statscache/frontend
+
+- name: copy statscache httpd config
+  template: >
+    src=statscache.conf dest=/etc/httpd/conf.d/statscache.conf
+    owner=apache group=apache mode=0644
+  notify:
+  - restart apache
+  tags:
+  - statscache
+  - statscache/frontend
+
+- name: copy custom wsgi file
+  copy: src=statscache.wsgi dest=/usr/share/statscache/apache/statscache.wsgi mode=0644
+  notify:
+  - restart apache
+  tags:
+  - statscache
+  - statscache/frontend
+
+- name: copy app configuration
+  template: >
+    src=statscache.cfg dest=/etc/statscache.cfg
+    owner=root group=apache mode=0640
+  notify:
+  - restart apache
+  tags:
+  - statscache
+  - statscache/frontend
+
+- name: apply selinux type to static files
+  file: >
+    dest=/usr/share/statscache/static
+    setype=httpd_sys_content_t
+    state=directory
+    recurse=yes
+  tags:
+  - statscache
+  - statscache/frontend
+  - selinux
+
+- name: ensure selinux lets httpd talk to postgres
+  seboolean: name={{item}} state=yes persistent=yes
+  with_items:
+  - httpd_can_network_connect_db
+  tags:
+  - statscache
+  - statscache/frontend
+  - selinux

roles/statscache/frontend/templates/statscache.cfg

@@ -0,0 +1,2 @@
+### Secret key for the Flask application
+SECRET_KEY='{{statscache_secret_key}}'

roles/statscache/frontend/templates/statscache.conf

@@ -0,0 +1,17 @@
+LoadModule wsgi_module modules/mod_wsgi.so
+
+WSGIPythonEggs /var/cache/statscache/.python-eggs
+WSGIDaemonProcess statscache user=apache group=apache maximum-requests=50000 display-name=statscache processes=4 threads=4 inactivity-timeout=300
+WSGISocketPrefix run/wsgi
+WSGIRestrictStdout Off
+WSGIRestrictSignal Off
+WSGIPythonOptimize 1
+
+WSGIScriptAlias / /usr/share/statscache/apache/statscache.wsgi
+
+Alias /static/ /usr/lib/python2.7/site-packages/statscache/static/
+
+<Directory /usr/share/statscache/>
+   Order deny,allow
+   Allow from all
+</Directory>

roles/statscache/frontend/templates/statscache.py

@@ -0,0 +1,37 @@
+import datetime
+
+
+config = {
+    "statscache.datagrepper.profile": False,
+
+    # Consumer stuff
+    "statscache.consumer.enabled": False,
+
+    "statscache.sqlalchemy.uri": "postgres://statscache:{{statscache_db_password}}@db01/statscache",
+
+    # stats models will go back at least this far (current value arbitrary)
+    "statscache.consumer.epoch": datetime.datetime(year=2015, month=8, day=8),
+
+    # stats models are updated at this frequency
+    "statscache.producer.frequency": datetime.timedelta(seconds=1),
+
+    # Configuration of web API
+    "statscache.app.maximum_rows_per_page": 100,
+    "statscache.app.default_rows_per_page": 100,
+
+    # Turn on logging for statscache
+    "logging": dict(
+        loggers=dict(
+            statscache={
+                "level": "DEBUG",
+                "propagate": False,
+                "handlers": ["console"],
+            },
+            statscache_plugins={
+                "level": "DEBUG",
+                "propagate": False,
+                "handlers": ["console"],
+            },
+        ),
+    ),
+}