Added logs to monkey island startup with hashes of executeables, for ease of deployment + debugging

Should ease the "wait which monkey am I running" issue a bit

monkey/monkey_island/cc/main.py

@@ -25,6 +25,7 @@ from monkey_island.cc.services.reporting.exporter_init import populate_exporter_
 from monkey_island.cc.utils import local_ip_addresses
 from monkey_island.cc.environment.environment import env
 from monkey_island.cc.database import is_db_server_up, get_db_version
+from monkey_island.cc.resources.monkey_download import MonkeyDownload
 
 
 def main():
@@ -49,12 +50,19 @@ def main():
                                  ssl_options={'certfile': os.environ.get('SERVER_CRT', crt_path),
                                               'keyfile': os.environ.get('SERVER_KEY', key_path)})
         http_server.listen(env.get_island_port())
-        logger.info(
-            'Monkey Island Server is running on https://{}:{}'.format(local_ip_addresses()[0], env.get_island_port()))
-
+        log_init_info()
         IOLoop.instance().start()
 
 
+def log_init_info():
+    logger.info(
+        'Monkey Island Server is running. Listening on the following URLs: {}'.format(
+            ", ".join(["https://{}:{}".format(x, env.get_island_port()) for x in local_ip_addresses()])
+        )
+    )
+    MonkeyDownload.log_executable_hashes()
+
+
 def wait_for_mongo_db_server(mongo_url):
     while not is_db_server_up(mongo_url):
         logger.info('Waiting for MongoDB server on {0}'.format(mongo_url))

monkey/monkey_island/cc/resources/monkey_download.py

@@ -1,3 +1,4 @@
+import hashlib
 import json
 import logging
 import os
@@ -83,9 +84,32 @@ class MonkeyDownload(flask_restful.Resource):
 
             if result:
                 # change resulting from new base path
-                real_path = os.path.join(MONKEY_ISLAND_ABS_PATH, "cc", 'binaries', result['filename'])
+                executable_filename = result['filename']
+                real_path = MonkeyDownload.get_executable_full_path(executable_filename)
                 if os.path.isfile(real_path):
                     result['size'] = os.path.getsize(real_path)
                     return result
 
         return {}
+
+    @staticmethod
+    def get_executable_full_path(executable_filename):
+        real_path = os.path.join(MONKEY_ISLAND_ABS_PATH, "cc", 'binaries', executable_filename)
+        return real_path
+
+    @staticmethod
+    def log_executable_hashes():
+        """
+        Logs all the hashes of the monkey executables for debugging ease (can check what Monkey version you have etc.).
+        """
+        filenames = set([x['filename'] for x in MONKEY_DOWNLOADS])
+        for filename in filenames:
+            filepath = MonkeyDownload.get_executable_full_path(filename)
+            if os.path.isfile(filepath):
+                with open(filepath, 'rb') as monkey_exec_file:
+                    logger.debug("{} (SHA-512): {}".format(
+                        filepath,
+                        hashlib.sha512(monkey_exec_file.read()).hexdigest())
+                    )
+            else:
+                logger.debug("No monkey executable for {}.".format(filepath))