Python fabric.api.env 模块，connection_attempts() 实例源码

def connect_to_instance_in_ssh(address, keypair_path, user='root'):
    """
    Run the command LS on a given instance
    :param address: ip or dns name of a machine
    :type address: str
    :param keypair_path: keypair path
    :type keypair_path: str
    """

    env.host_string = address
    env.user = user
    env.parallel = False
    env.key_filename = keypair_path
    env.disable_known_hosts = True
    env.connection_attempts = 10
    env.timeout = 120

    ocb.log(run('ls -la /root'), level='INFO')

def main(argv):
    global APPS
    global DURATION
    global VMLIST

    env.user = 'ubuntu'
    env.connection_attempts = 10

    DURATION = int(sys.argv[1])
    with open('./tests') as f:
        APPS = f.read().splitlines()
    with open('./vmlist') as f:
        for line in f:
        vals = line.split()
        VMMAP[vals[0]] = (vals[1], vals[2])
    sample_count = DURATION / INTERVAL
    #image_dir='data'
    #files = os.listdir(image_dir)
    image_file=''
    executor(sample_count,image_file)

def main(argv):
    global APPS
    global DURATION
    global VMLIST

    env.user = 'ubuntu'
    env.connection_attempts = 100

    DURATION = int(sys.argv[1])
    with open('./tests') as f:
        APPS = f.read().splitlines()
    with open('./vmlist') as f:
        for line in f:
        vals = line.split()
        VMMAP[vals[0]] = (vals[1], vals[2])
    sample_count = DURATION / INTERVAL
    executor(sample_count)

def set_fabric_common_env():
    """
    ??????????fabric env
    """
    env.user = 'astd'
    env.use_ssh_config = True   # This is important when running under root.
    env.connection_attempts = 5
    env.disable_known_hosts = True
    env.keepalive = 60

def _init_fabric(self):
        env.warn_only = True
        env.connection_attempts = 10
        env.timeout = 10
        env.user = self.user
        env.key_filename = self.key_filename
        env.hosts = self.hosts
        env.password = self.password

def main(argv):

    env.user = 'ubuntu'
    env.connection_attempts = 5

    executor()