Add an option to start the topology from scratch.

Author: arnaudfroidmont

README.md

@@ -185,6 +185,9 @@ The key word `permanent` allows will spin up clusters but not delete them untill
 After a modification of the `/opt/oci-hpc/conf/queues.conf`, you need to run 
 `/opt/oci-hpc/bin/slurm_config.sh`
 
+If you have some state that is messing with Slurm, you can make sure it is put back in the initial state with 
+`/opt/oci-hpc/bin/slurm_config.sh --initial`
+
 To turn on autoscaling: 
 Uncomment the line in `crontab -e`:
 ```

bin/slurm_config.sh

@@ -2,6 +2,7 @@
 #
 # Regenerate Slurm Config
 #
+# Add --initial as argument if you need to restart slurm from scratch (Removes the current topology file)
 
 
 scripts=`realpath $0`
@@ -12,7 +13,12 @@ playbooks_path=$folder/../playbooks/
 
 if [[ `cat $conf_folder/queues.conf | grep instance_keyword |  uniq -c -d | wc -l ` == 0 ]];
 then
+   if [ ${@: -1} == "--INITIAL" or ${@: -1} == "--initial" or ${@: -1} == "-INITIAL" or ${@: -1} == "-initial"]
+   then
+      sudo rm /etc/slurm/topology.conf
+      sudo /usr/sbin/slurmctld -c
+   fi
    ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook $playbooks_path/slurm_config.yml
-else
+ else
    echo "There are some duplicates instance_keyword lines, please make them unique"   
 fi