metrics exit-ops diagram

metrics/ops/exit-ops.mdwn

@@ -9,6 +9,35 @@ Exit Scanner, TorDNSEL and Tor Check Operations
 While the three services described in this document could be implemented as discrete components,
 they currently have tight coupling which means they must all be deployed on the same host.
 
+```
+                +------------+
+                |  Exit      +---------------------------------------+
+                |  Scanner   |-----------------------------+         |
+                |            +----------> DNS Zone File    |         |
+                +--------+---+                 +           |         |
+            launches|    ^                     |           |         |
+                    v    |gets results         v           v         |
++-------+       +---+--------+            +----+-----+     Bulk      |
+| Tor   +^------+   exitmap  |            |  TSA     |     Exit      |
+| Client+------v+            |            |  Managed |     List      |
++-------+       +------------+            |  BIND    |               |
+              using ipscan module         +----------+               |
+                                                                     |
+                                                                     v
+                         +--------+          +-----------+     Exit List
+                         | Tor    +<---------+   Tor     |           +
+                         | Client |          |   Check   +<----------+
+                         |        +--------->+           |
+                         +--------+          +-----+-----+
+                                                   ^
+                                                   |
+                                             +-----+-----+
+                                             |  Apache   |
+                                             |  Reverse  |
+                                             |  Proxy    |
+                                             +-----------+
+```
+
 ## Exit Scanner
 
 The exit scanner performs active measurement of Tor exit relays in order to determine the IP addresses that are used for exit connections.