Make script easier to read

Signed-off-by: Arnaud M <arnaud.choupinette@mailops.fr>

userdata/README.md

@@ -1,21 +1,18 @@
 # E.G. to boot 20 instances
+
+```bash
 openstack server create --user-data isen-postinstall.sh --min 20 --max 20 --flavor d2-4 --image 'Debian 11' --net Ext-Net --key-name arnaud-choupinette isen
+```
 
 # Then copy/paste openrc files into the servers so that students can do
 # source /root/openrc
 
 # Clean the project, from k8s-1
-for o in $(ls -1 openrc_is*) ; do 
+
+```bash
+for o in $(ls -1 /root/openrc_is*) ; do 
     source $o
-    openstack keypair list -f value -c Name | xargs openstack keypair delete
-    openstack security group rule list -c ID -f value | xargs openstack security group rule delete
-    openstack security group rule create --egress default
-    openstack floating ip list -c ID -f value | xargs openstack floating ip delete
-    for router in $(openstack router list -c ID -f value); do
-        for subnet in $(openstack router show -c interfaces_info $router -f json | jq -r ".interfaces_info[].subnet_id" | uniq) ; do
-            openstack router remove subnet $router $subnet
-        done
-        openstack router delete $router
-    done
-    openstack network list --internal -f value -c ID | xargs openstack network delete
+    echo "Working on $o"
+    bash /root/bootstrap-openstack-k8s/extra/clean-project.sh
 done
+```