Add proper Cleanup script.

Chore following such addition.

scripts/.common

@@ -1,11 +1,26 @@
 #!/bin/bash
 
 ## Vars
+# Docker container name for dir2config
+D2C_CTR_NAME=dir2config
+# Docker container name for direktil local server
+DLS_CTR_NAME=dls
 
+# QEMU local bridge name. If you specificy a custom name, you may have to configure qemu bridge helper to allow it
+QEMU_BR_NAME=virbr0
+# QEMU VM default disk size
+QEMU_DISK_SIZE=30G
+# Allocated CPUs to QEMU VMs
+QEMU_VM_CPU=4
+# Allocated Memory to QEMU VMs
+QEMU_VM_MEM=8096
+################
+
+# Token file for dls
 tknfile=".dls_adm_token"
 
-## Helper funcs
 
+## Helper funcs
 
 pinfo() {
   echo -e "\e[32m$@\e[39m"
@@ -42,7 +57,7 @@ check_root() {
 }
 
 prereqs() {
-  set -ex
+  # set -ex
   cd "$(dirname $0)/.."
   ctxdir="$PWD"
 }
@@ -86,7 +101,7 @@ get_hosts() {
     ip=$(grep ip: $ctxdir/hosts/${h}.yaml|awk '{print $2}')
     hosts[$h]="$ip"
   done
-  cd -
+  cd - &>/dev/null
 }
 
 get_parts() {
@@ -102,6 +117,15 @@ get_parts() {
   done
 }
 
+destroyvms() {
+  for host in ${!hosts[*]}; do
+    host=$1
+    if test -f $ctxdir/data/$host/pid ; then
+      pinfo "Detected a pid file, killing process in case VM was already started"
+      kill $(cat $ctxdir/data/$host/pid) && sleep 1
+    fi
+  done
+}
 
 create_kubeconfig() {
   if test -f $ctxdir/kubeconfig; then