rtcds: add check of system to see if model is assigned to it

support/bin/rtcds.in

@@ -26,6 +26,7 @@ site=${SITE,,*}
 IFO=${IFO^^*}
 ifo=${IFO,,*}
 
+CHECK_MODEL_IN_HOST=${CHECK_MODEL_IN_HOST:-false}
 IS_DOLPHIN_NODE=${IS_DOLPHIN_NODE:-false}
 DAQ_STREAMING=${DAQ_STREAMING:-false}
 
@@ -144,6 +145,17 @@ list_host_sys() {
   fi
 }
 
+# returns 0 if $1 names a system that's designated to run
+#  on this host
+check_sys_in_host() {
+    echo "CHECK_MODEL_IN_HOST=$CHECK_MODEL_IN_HOST"
+    echo "force_start=$force_start"
+    if $CHECK_MODEL_IN_HOST && ! $force_start ; then
+  	local systems=`list_host_sys`
+  	contains $1 $systems
+    fi
+}
+
 check_unit_available() {
   if ! systemctl cat rts@$1.target > /dev/null ; then
     log "RTS front end systemd units don't seem to be available.  Is the advligorts-fe package installed?"
@@ -216,13 +228,18 @@ install_world() {
 start_sys() {
     for sys ; do
 	log "### starting $sys..."
-    	local unit_name=`get_model_unit ${sys}`
-        sudo systemctl start $unit_name
-
-	# pause needed to avoid timing glitch when user model started immediately after IOP
-	log "... waiting for start of ${sys} to complete"
-	sleep 15
-	log "${sys} started"
+	if check_sys_in_host $sys ; then
+	  local unit_name=`get_model_unit ${sys}`
+	  sudo systemctl start $unit_name
+
+	  # pause needed to avoid timing glitch when user model started immediately after IOP
+	  log "... waiting for start of ${sys} to complete"
+	  sleep 15
+	  log "${sys} started"
+	else
+	  log "$sys can't be run on $(hostname)"
+	  log "Override with the '--force-start' option."
+	fi
     done
 }
 
@@ -425,6 +442,7 @@ Available commands:
 
   ${enable_usage}disable <sys>...|--all     disable system start at boot
   start <sys>...|--all       start systems
+    --force-start            start a model even if it fails some checks
   restart <sys>...|--all     restart running systems
   stop|kill <sys>...|--all   stop running systems