Adding redis bgsave monitor.

utils/monitor_redis_bgsave.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+
+import sys
+sys.path.append('/srv/newsblur')
+
+import os
+import datetime
+import requests
+import settings
+import socket
+
+def main():
+    t = os.popen('stat -c%%Y /var/lib/redis/dump.rdb')
+    timestamp = t.read().split('\n')[0]
+    modified = datetime.datetime.fromtimestamp(int(timestamp))
+    ten_min_ago = datetime.datetime.now() - datetime.timedelta(minutes=10)
+    hostname = socket.gethostname()
+    modified_minutes = datetime.datetime.now() - modified
+    
+    if modified < ten_min_ago:
+        requests.post(
+                "https://api.mailgun.net/v2/%s/messages" % settings.MAILGUN_SERVER_NAME,
+                auth=("api", settings.MAILGUN_ACCESS_KEY),
+                data={"from": "NewsBlur Redis Monitor: %s <admin@%s.newsblur.com>" % (hostname, hostname),
+                      "to": [settings.ADMINS[0][1]],
+                      "subject": "%s hasn't bgsave'd redis in ten minutes!" % (hostname),
+                      "text": "Last modified %s: %s minutes ago" % (hostname, modified_minutes)})
+    else:
+        print " ---> Redis BGSAve fine: %s / %s ago" % (hostname, modified_minutes)
+        
+if __name__ == '__main__':
+    main()