fix slurmd entrypoint now hostname!=pod name

Author: sjpb

image/docker-entrypoint.sh

@@ -78,7 +78,7 @@ then
     echo "-- slurmctld is now active ..."
 
     echo "---> Updating node definitions ..."
-    scontrol delete node=$HOSTNAME
+    scontrol delete node=${POD_NAME}
     scontrol create $(slurmd -C | head -n1) State=FUTURE
 
     echo "---> Starting the Slurm Node Daemon (slurmd) ..."