fixed bad config setting

compose.yaml

@@ -5,7 +5,7 @@ services:
       context: .
       dockerfile: osg.dockerfile
       
-    image: osg:24 # <--automate this number change to trigger stack redeploy.
+    image: osg:25 # <--automate this number change to trigger stack redeploy.
       
     environment:
       DOCKER: "true"

server.py

@@ -52,7 +52,7 @@ def run_server(host_ip, host_port, host_prefix, static_dir, database_connection,
                 'tools.staticdir.dir': static_dir,
                 'tools.staticdir.index': 'index.html',
                 'tools.expires.on': True,
-                'tools.expires.delay': 30*24*60*60, # 30 days
+                'tools.expires.secs': 30*24*60*60, # 30 days
             },
         '/images': {
             'tools.caching.on': True,