blueprint.py 文件源码

def web_node_status(name=None):
    '''name will never have a leading / but now always needs one.'''
    name = '/' + name
    try:
        node = BP.nodes[name][0]
        ESPURL = None    # testable value in Jinja2
        ESPsizeMB = 0
        installsh = installlog = None
        status = get_node_status(name)
        if status is not None:
            if status['status'] == 'ready':
                ESPpath = '%s/%s/%s.ESP' % (
                    BP.config['TFTP_IMAGES'], node.hostname, node.hostname)
                if os.path.isfile(ESPpath):
                    prefix = request.url.split(_ERS_element)[0]
                    ESPURL = '%s%s/ESP/%s' % (
                        prefix, _ERS_element, node.hostname)
                    ESPsizeMB = os.stat(ESPpath).st_size >> 20

            if status['status'] in ('building', 'ready'):
                installpath = '%s/%s/untar/root' % (
                    BP.config['FILESYSTEM_IMAGES'], node.hostname)
                try:
                    with open(installpath + '/install.sh') as f:
                        installsh = f.read()
                    with open(installpath + '/install.log') as f:
                        installlog = f.read()
                except Exception as e:
                    installsh = installlog = None
                    pass

        # all manifests' names with namespace
        manifests = sorted(BP.blueprints['manifest'].get_all())
        return render_template(
            _ERS_element + '.tpl',
            label=__doc__,
            node=node,
            manifests=manifests,
            status=status,
            base_url=request.url.split(name)[0],
            ESPURL=ESPURL,
            ESPsizeMB=ESPsizeMB,
            installsh=installsh,
            installlog=installlog
        )
    except Exception as e:
        return make_response('Kaboom: %s' % str(e), 404)