Python rsync 伺服器之間資料夾同步指令碼

About  rsync：https://download.samba.org/pub/rsync/rsync.html

配置兩臺伺服器之間ssh-key後，可以實現自動化無需手動輸入密碼，指令碼如下：

import argparse
import datetime
from functools import partial
import multiprocessing as mp
import os
import paramiko as pmk
import time


def check_ssh(host, user, port, passwd, dest_path):
    ssh_client = pmk.SSHClient()
    ssh_client.load_system_host_keys()
    ssh_client.set_missing_host_key_policy(pmk.AutoAddPolicy())
    try:
        ssh_client.connect(host, username=user, port=port, timeout=10, password=passwd)
        ssh_client.exec_command('mkdir ' + os.path.join(dest_path, 'data'))
    except BaseException as e:
        print 'failed to connect to host: %r: %r' % (host, e)
        return False
    else:
        return True


def select_from_file(file_path):
    file_list = []
    if os.path.exists(file_path):
        path_dir = os.listdir(file_path)
        for all_dir in path_dir:
            file_list.append(os.path.join('%s' % all_dir))
    return file_list


def sync_file(file_name, remote_host, remote_user, remote_port, src_path, dest_path):
    sync_cmd = "rsync -azrvhP --progress  -e 'ssh -p " + str(remote_port) + "' --skip-compress=gz/zip/ " + \
               file_name + " " + remote_user + "@" + remote_host + ":" + os.path.join(dest_path,'data')
    print sync_cmd
    os.chdir(src_path)
    os.system(sync_cmd)


if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('-w', '--workers', dest='workers', type=int, default=12)
    parser.add_argument('-H', '--host', dest='host', type=str, default='192.168.254.156')
    parser.add_argument('-u', '--user', dest='user', type=str, default='shubao')
    parser.add_argument('-p', '--password', dest='password', type=str, default='123456')
    parser.add_argument('-P', '--port', dest='port', type=int, default=22)
    parser.add_argument('-r', '--remotepath', dest='remotepath', type=str, default='/home/shubao/')
    parser.add_argument('-s', '--srcpath', dest='srcpath', type=str, default='/home/Jesse/data')
    args = parser.parse_args()
    if not check_ssh(args.host, args.user, args.port, args.password, args.remotepath):
        print 'SSH connect faild!'
        exit(-1)
    pool = mp.Pool(processes=args.workers)
    try:
        while True:
            print "New check start at %s..." % str(datetime.datetime.now())
            file_list_ = select_from_file(args.srcpath)
            print "File_list: "
            print file_list_
            p_work = partial(sync_file, remote_host=args.host, remote_user=args.user, remote_port=args.port,
                             src_path=args.srcpath, dest_path=args.remotepath)
            pool.map(p_work, file_list_)
            time.sleep(10)
    finally:
        pool.terminate()
        pool.join()