new uwsgi settings

Enable some additional settings so worker processes get recycled
periodically, so they won't grow to use too much memory.

Also reduce the number of workers to 10.

uwsgi.ini

@@ -1,7 +1,10 @@
+# https://uwsgi-docs.readthedocs.io/en/latest/Options.html
 [uwsgi]
 master = true
-workers = 20
+workers = 10
 die-on-term = true
+need-app = true
+vacuum = true
 
 disable-logging = true
 
@@ -11,3 +14,8 @@ buffer-size = 65535
 
 early-psgi = true
 perl-no-die-catch = true
+
+max-worker-lifetime = 3600
+max-requests = 1000
+reload-on-rss = 300
+harakiri = 60