Prevent setting tempest fixed_network_name for cells

Instead of creating a network in both the API cell and child cell,
let tempest use the old behavior of not querying networks from the
API for testing server create.

Change-Id: I9809d2b2e796ff1a5ea7e4f25bbeb21bd4817a72

Author: melanie witt

lib/tempest

@@ -340,7 +340,9 @@ function configure_tempest {
     iniset $TEMPEST_CONFIG compute flavor_ref $flavor_ref
     iniset $TEMPEST_CONFIG compute flavor_ref_alt $flavor_ref_alt
     iniset $TEMPEST_CONFIG compute ssh_connect_method $ssh_connect_method
-    iniset $TEMPEST_CONFIG compute fixed_network_name $PRIVATE_NETWORK_NAME
+    if ! is_service_enabled n-cell; then
+        iniset $TEMPEST_CONFIG compute fixed_network_name $PRIVATE_NETWORK_NAME
+    fi
 
     # Compute Features
     # Run ``verify_tempest_config -ur`` to retrieve enabled extensions on API endpoints

stack.sh

@@ -1214,13 +1214,6 @@ if is_service_enabled q-svc; then
 elif is_service_enabled $DATABASE_BACKENDS && is_service_enabled n-net; then
     NM_CONF=${NOVA_CONF}
     if is_service_enabled n-cell; then
-        # Both cells should have the same network uuid for server create
-        if [[ ! "$NETWORK_CREATE_ARGS" =~ "--uuid" ]]; then
-            NETWORK_CREATE_ARGS="$NETWORK_CREATE_ARGS --uuid $(uuidgen)"
-        fi
-        # Create a small network in the API cell
-        $NOVA_BIN_DIR/nova-manage --config-file $NM_CONF network create "$PRIVATE_NETWORK_NAME" $FIXED_RANGE 1 $FIXED_NETWORK_SIZE $NETWORK_CREATE_ARGS
-        # Everything else should go in the child cell
         NM_CONF=${NOVA_CELLS_CONF}
     fi