def initialize(org_name):
    """Set constant strings."""
    global NEXUS3_BASE
    global NEXUS3_CATALOG
    global NEXUS3_PROJ_NAME_HEADER
    global DOCKER_PROJ_NAME_HEADER
    NEXUS3_BASE = 'https://nexus3.{}.org:10002'.format(org_name)
    NEXUS3_CATALOG = NEXUS3_BASE + '/v2/_catalog'
    NEXUS3_PROJ_NAME_HEADER = 'Nexus3 Project Name'
    DOCKER_PROJ_NAME_HEADER = 'Docker HUB Project Name'
