pnda-cli.py 文件源码

def check_pnda_mirror():

    def raise_error(reason):
        CONSOLE.info('PNDA mirror...... ERROR')
        CONSOLE.error(reason)
        CONSOLE.error(traceback.format_exc())
        sys.exit(1)

    try:
        mirror = PNDA_ENV['mirrors']['PNDA_MIRROR']
        response = requests.head(mirror)
        # expect 200 (open mirror) 403 (no listing allowed)
        # or any redirect (in case of proxy/redirect)
        if response.status_code not in [200, 403, 301, 302, 303, 307, 308]:
            raise_error("PNDA mirror configured and present "
                        "but responded with unexpected status code (%s). " % response.status_code)
        CONSOLE.info('PNDA mirror...... OK')
    except KeyError:
        raise_error('PNDA mirror was not defined in pnda_env.yaml')
    except:
        raise_error("Failed to connect to PNDA mirror. Verify connection "
                    "to %s, check mirror in pnda_env.yaml and try again." % mirror)