Merge "Add new parameter RECREATE_KEYSTONE_DB"

lib/keystone

@@ -490,8 +490,10 @@ function init_keystone {
         init_ldap
     fi
 
-    # (Re)create keystone database
-    recreate_database keystone
+    if [[ "$RECREATE_KEYSTONE_DB" == True ]]; then
+        # (Re)create keystone database
+        recreate_database keystone
+    fi
 
     # Initialize keystone database
     $KEYSTONE_BIN_DIR/keystone-manage --config-file $KEYSTONE_CONF db_sync

stackrc

@@ -819,6 +819,10 @@ GIT_DEPTH=${GIT_DEPTH:-0}
 # Use native SSL for servers in ``SSL_ENABLED_SERVICES``
 USE_SSL=$(trueorfalse False USE_SSL)
 
+# We may not need to recreate database in case 2 Keystone services
+# sharing the same database. It would be useful for multinode Grenade tests.
+RECREATE_KEYSTONE_DB=$(trueorfalse True RECREATE_KEYSTONE_DB)
+
 # ebtables is inherently racey. If you run it by two or more processes
 # simultaneously it will collide, badly, in the kernel and produce
 # failures or corruption of ebtables. The only way around it is for