# Variables read:
# - WORKING_TOPOLOGY - Path to topology yaml file of the reserved testbed.
# - TEST_CODE - String affecting test selection, usually jenkins job name.
# - TEST_TAG_STRING - String selecting tags, from gerrit comment.
# Can be unset.
# - TOPOLOGIES_DIR - Path to existing directory with available tpologies.
# Variables read:
# - WORKING_TOPOLOGY - Path to topology yaml file of the reserved testbed.
# - TEST_CODE - String affecting test selection, usually jenkins job name.
# - TEST_TAG_STRING - String selecting tags, from gerrit comment.
# Can be unset.
# - TOPOLOGIES_DIR - Path to existing directory with available tpologies.