Add log rotation threshold configuration

config.py

@@ -318,6 +318,7 @@ class DefaultConfig(ImmutableConfig):
   # Action logs archive
   ACTION_LOG_ARCHIVE_LOCATION = 'local_us'
   ACTION_LOG_ARCHIVE_PATH = 'actionlogarchive/'
+  ACTION_LOG_ROTATION_THRESHOLD = '30d'
 
   # System logs.
   SYSTEM_LOGS_PATH = "/var/log/"

config_app/js/core-config-setup/config-setup-tool.html

@@ -386,6 +386,23 @@
               </div>
             </td>
           </tr>
+          <tr>
+            <td>Log Rotation Threshold:</td>
+            <td>
+              <span class="config-string-field" binding="config.ACTION_LOG_ROTATION_THRESHOLD"
+                    pattern="[0-9]+(m|w|h|d|s)"></span>
+              <div class="help-text">
+                  The number of days after which to archive action logs to storage. Must be expressed in a duration string form: <code>30m</code>, <code>1h</code>, <code>1d</code>, <code>2w</code>.
+              </div>
+                <div class="help-text">
+                    Note: The rotation threshold should be considered a balancing act between user history and size of database.
+                </div>
+                <div class="help-text">
+                    Larger time windows will result in more logs, but give users more history to view.
+                    Anything less than <code>2w</code> is not recommended.
+                </div>
+            </td>
+          </tr>
         </table>
     </div>
 

util/config/schema.py

@@ -330,6 +330,12 @@ CONFIG_SCHEMA = {
                      'archived data.',
       'x-example': 'archives/actionlogs',
     },
+    'ACTION_LOG_ROTATION_THRESHOLD': {
+        'type': 'string',
+        'description': 'If action log archiving is enabled, the time interval after which to ' +
+                       'archive data.',
+        'x-example': '30d',
+    },
     'LOG_ARCHIVE_LOCATION': {
       'type': 'string',
       'description': 'If builds are enabled, the storage engine in which to place the ' +

workers/logrotateworker.py

@@ -15,16 +15,17 @@ from data.userfiles import DelegateUserfiles
 from util.locking import GlobalLock, LockNotAcquiredException
 from util.log import logfile_path
 from util.streamingjsonencoder import StreamingJSONEncoder
+from util.timedeltastring import convert_to_timedelta
 from workers.worker import Worker
 
 logger = logging.getLogger(__name__)
 
 JSON_MIMETYPE = 'application/json'
-STALE_AFTER = timedelta(days=30)
 MIN_LOGS_PER_ROTATION = 10000
 MEMORY_TEMPFILE_SIZE = 12 * 1024 * 1024
 
 WORKER_FREQUENCY = app.config.get('ACTION_LOG_ROTATION_FREQUENCY', 60 * 60 * 12)
+STALE_AFTER = convert_to_timedelta(app.config.get('ACTION_LOG_ROTATION_THRESHOLD', '30d'))
 SAVE_PATH = app.config.get('ACTION_LOG_ARCHIVE_PATH')
 SAVE_LOCATION = app.config.get('ACTION_LOG_ARCHIVE_LOCATION')