Temporarily change to storing logs in a new LogEntry2 table

This will prevent us from running out of auto-incrementing ID values until such time as we can upgrade to peewee 3 and change the field type to a BigInt

Fixes https://jira.coreos.com/browse/QUAY-943

tools/deleteoldlogentries.py

@@ -1,45 +0,0 @@
-import logging
-
-from datetime import timedelta, datetime
-
-from app import app
-from data.database import LogEntry
-
-logger = logging.getLogger(__name__)
-
-LOG_FORMAT = "%(asctime)s [%(process)d] [%(levelname)s] [%(name)s] %(message)s"
-BATCH_SIZE = 1000
-
-def delete_old_logentries(delete_before):
-  delete_up_to_id = (LogEntry
-    .select(LogEntry.id)
-    .where(LogEntry.datetime <= delete_before)
-    .order_by(LogEntry.id.desc())
-    .limit(1)
-    .tuples())[0][0]
-  logger.debug('Deleting up to id: %s', delete_up_to_id)
-
-  start_from_id = (LogEntry
-    .select(LogEntry.id)
-    .order_by(LogEntry.id)
-    .limit(1)
-    .tuples())[0][0]
-  logger.debug('Starting from id: %s', start_from_id)
-
-  deleted = 1
-  current_batch_end = min(start_from_id + BATCH_SIZE, delete_up_to_id)
-  while deleted > 0 or current_batch_end < delete_up_to_id:
-    deleted = (LogEntry
-      .delete()
-      .where(LogEntry.id <= current_batch_end)
-      .execute())
-    logger.debug('Deleted %s entries', deleted)
-    current_batch_end = min(current_batch_end + BATCH_SIZE, delete_up_to_id)
-
-if __name__ == '__main__':
-  logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT)
-
-  now = datetime.now()
-  one_month_ago = now - timedelta(days=30)
-
-  delete_old_logentries(one_month_ago)