volumes.py 文件源码

def mount_volume(config):
    if os.path.exists(config['mountpoint']):
        if not os.path.isdir(config['mountpoint']):
            hookenv.log('Not a directory: {}'.format(config['mountpoint']))
            raise VolumeConfigurationError()
    else:
        host.mkdir(config['mountpoint'])
    if os.path.ismount(config['mountpoint']):
        unmount_volume(config)
    if not host.mount(config['device'], config['mountpoint'], persist=True):
        raise VolumeConfigurationError()