add dryrun and quiet options

Change-Id: I95bebc532389208e9e3bbd952095d75bf0dac763

nova/auto-fix-quota-all-tenants.sh

@@ -1,11 +1,35 @@
 #!/bin/bash
 
+usage() {
+    echo "Usage: $0 [-n] [-q]"
+    echo "-n: Dry Run. Don't update the database"
+    echo "-q: Quiet mode. Only show incorrect quotas"
+    exit 1
+}
+
+while getopts ":nq" opt ; do
+    case ${opt} in
+        n)
+            base_msg="[DRY RUN] "
+            args="${args} -n"
+            ;;
+        q)
+            args="${args} -q"
+            ;;
+        *)
+            usage
+            ;;
+    esac
+done
+
+
 echo "$(date): Tenant quota correction - started"
 
 for x in $(keystone --insecure tenant-list | awk -F' |\
     ' '!/^\+/ && !/\ id\ / {print $2}'); do
-    echo "Correcting quota for tenant $x"
-    python /root/scripts/auto-fix-quota.py --tenant $x
+    msg="${base_msg}Correcting quota for tenant ${x}"
+    echo ${msg}
+    python ./auto-fix-quota.py ${args} --tenant ${x}
 done
 
 echo "$(date): Tenant quota correction - finished"