command-line tool for modifying slave configuration now works

bin/gbrowse_add_slaves.pl

@@ -26,6 +26,9 @@
  gbrowse_update_renderers.pl --add http://coyote.acme.com:8081 \
                              --add http://roadrunner.acme.com:8081
 
+This script does not actually provision new slaves. It is called after slaves
+are provisioned (or deprovisioned) to update the configuration on the master and
+restart the server.
 USAGE
     ;
 if (@ARGV && !@to_add && !@to_remove) {
@@ -63,4 +66,6 @@
 close $f or die "Couldn't write: $!";
 rename "$render_conf.new",$render_conf;
 
+system "sudo /etc/init.d/apache2 graceful";
+
 exit 0;

conf/GBrowse.conf

@@ -73,12 +73,13 @@ debug_external         = 0
 debug_plugins          = 0
 
 # Performance settings
-renderfarm             = 1
 slave_timeout          = 45
 global_timeout         = 60
 search_timeout         = 15
 max_render_processes   = 4   # try double number of CPU/cores
 
+#include renderfarm.conf
+
 # Clean up settings (used by the gbrowse_clean script)
 expire session  = 1M  # expire unused sessions after a month
 expire cache    = 2h  # expire cached data if unmodified for >2 hours

conf/renderfarm.conf

@@ -1,3 +1,5 @@
+[GENERAL]
+
 renderfarm = 0
 
 remote renderer =