Make sure the daemon starts up in the right directory to access the certs file.

buildserver/buildserver.py

@@ -209,4 +209,4 @@ def health_check():
 
 if __name__ == '__main__':
   logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT)
-  app.run(host='0.0.0.0', port=5002)
+  app.run(host='0.0.0.0', port=5002, threaded=True)

workers/dockerfilebuild.py

@@ -5,6 +5,7 @@ import time
 import argparse
 import digitalocean
 import requests
+import os
 
 from apscheduler.scheduler import Scheduler
 from multiprocessing.pool import ThreadPool
@@ -257,7 +258,8 @@ if args.D:
   handler = logging.FileHandler(args.log)
   handler.setFormatter(formatter)
   root_logger.addHandler(handler)
-  with daemon.DaemonContext(files_preserve=[handler.stream]):
+  with daemon.DaemonContext(files_preserve=[handler.stream],
+                            working_directory=os.getcwd()):
     start_worker()
 
 else: