Add PIL+JPEG to monitor. /me sees a code refresh coming to this script soon

apps/amo/templates/services/monitor.html

@@ -25,6 +25,21 @@
   <p>There must be a minimum of 2 working servers.</p>
 </div>
 
+<div class="notification-box {{ status(status_summary.libraries) }}">
+  <h2>[libs] Libraries and Versions</h2>
+  <dl>
+  {% for lib, result, msg in libraries_results %}
+    <dt>{{ lib }}</dt>
+    <dd>
+    {% if success %}
+      {{ msg }}
+    {% else %}
+      <strong>{{ msg }}</strong>
+    {% endif %}
+    </dd>
+  {% endfor %}
+  </dl>
+</div>
 <div class="notification-box {{ status(status_summary.filepaths) }}">
   <h2>[Paths] Paths and Permissions</h2>
   <dl>

apps/amo/views.py

@@ -1,6 +1,8 @@
 import os
 import random
+from PIL import Image
 import socket
+import StringIO
 import urllib2
 from urlparse import urlparse
 
@@ -68,6 +70,17 @@ def monitor(request):
         status_summary['memcache'] = False
         log.info('Memcache is not configured.')
 
+    # Check Libraries and versions
+    libraries_results = []
+    status_summary['libraries'] = True
+    try:
+        Image.new('RGB', (16, 16)).save(StringIO.StringIO(), 'JPEG')
+        libraries_results.append(('PIL+JPEG', True, 'Got it!'))
+    except Exception, e:
+        status_summary['libraries'] = False
+        msg = "Failed to create a jpeg image: %s" % e
+        libraries_results.append(('PIL+JPEG', False, msg))
+
     # Check file paths / permissions
     filepaths = (
         (settings.NETAPP_STORAGE, os.R_OK | os.W_OK, "We want read + write."),
@@ -112,6 +125,7 @@ def monitor(request):
 
     return jingo.render(request, 'services/monitor.html',
                         {'memcache_results': memcache_results,
+                         'libraries_results': libraries_results,
                          'filepath_results': filepath_results,
                          'redis_results': redis_results,
                          'hera_results': hera_results,