Add empty update loop

scripts/node.sh

@@ -180,6 +180,8 @@ then
 fi
 mkdir -p latest
 
+unset -v check_update_pid
+
 cleanup() {
    local trap_sig kill_sig
 
@@ -189,6 +191,10 @@ cleanup() {
    case "${kill_sig}" in
    0|EXIT) kill_sig=TERM;;
    esac
+
+   case "${check_update_pid+set}" in
+   set) kill -${kill_sig} "${check_update_pid}";;
+   esac
 }
 
 unset -v trap_sigs trap_sig
@@ -212,6 +218,11 @@ do
    trap "trap_func ${trap_sig}" ${trap_sig}
 done
 
+{
+   # TODO ek – implement me
+} &
+check_update_pid=$!
+
 while :
 do
    echo "############### Running Harmony Process ###############"