import asyncio import sys import time import requests import utils import logging import os import docker import rov_server_config from concurrent.futures import ThreadPoolExecutor logging.basicConfig(level=logging.INFO, format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s', datefmt='%a, %d %b %Y %H:%M:%S') health_instances = [] ess_instances = [] remove_container_instances = [] def server_health_check(client, instance_id): """ 服务健康检查 :param client: 客户端连接 :param instance_id: instanceId :return: """ global health_instances ip_address = utils.get_ip_address(client=client, instance_id=instance_id) while True: health_check_url = f"http://{ip_address}:5001/healthcheck" try: http_code = requests.get(health_check_url).status_code except: logging.info("images is downloading") http_code = 0 if http_code == 200: health_instances.append((instance_id, ip_address)) break else: time.sleep(10) async def ess_instance(create_client, slb_client, ess_count, max_workers, version): """ 扩容机器并运行新服务 :param create_client: 购买机器客户端连接 :param slb_client: 修改负载均衡权限 :param ess_count: 扩容数量 :param max_workers: 线程数 :param version: 版本标记 :return: """ # 1. 购买机器并启动 ess_instance_ids = utils.create_multiple_instances( amount=ess_count, client=create_client, **rov_server_config.instance_config, ) time.sleep(60) # 2. 发送启动脚本到机器上 utils.send_file_to_ecs(client=create_client, instance_id_list=ess_instance_ids, **rov_server_config.start_sh) logging.info(f"send start shell file finished, instances: {ess_instance_ids}") # 3. 启动服务 server_start_sh = os.path.join(rov_server_config.start_sh['target_dir'], rov_server_config.start_sh['name']) server_start_commend = f"sh {server_start_sh} {version}" utils.run_command(client=create_client, instance_ids=ess_instance_ids, command=server_start_commend) # 4. 异步探活 global health_instances health_instances = [] loop = asyncio.get_running_loop() executor = ThreadPoolExecutor(max_workers=max_workers) tasks = [ loop.run_in_executor(executor, server_health_check, *args) for args in [(slb_client, instance_id) for instance_id in ess_instance_ids] ] await asyncio.wait(tasks) logging.info(f"health instances count: {len(health_instances)}, {health_instances}") # 5. 挂载流量 if len(health_instances) == len(ess_instance_ids): # 所有机器探活成功 time.sleep(60) utils.add_backend_servers(client=slb_client, slb_id=rov_server_config.slb_id, instances=health_instances) health_instance_ids = [instance_id for instance_id, _ in health_instances] add_weight_list = [(10, 30), (20, 20), (40, 10), (60, 10), (80, 10), (100, 10)] utils.set_instance_weight_process(client=slb_client, slb_id=rov_server_config.slb_id, instance_id_list=health_instance_ids, weight_list=add_weight_list) global ess_instances ess_instances.extend(health_instance_ids) logging.info(f"ess count: {ess_count}, " f"create count: {len(ess_instance_ids)}, " f"finished count: {len(health_instance_ids)}") else: logging.info(f"ess count: {ess_count}, " f"create count: {len(ess_instance_ids)}, " f"health count: {len(health_instances)}") sys.exit() def remove_container_image(client, instance_id, container_name): """ 移除旧容器并删除旧镜像 :param client: 客户端连接 :param instance_id: instanceId type-string :param container_name: 容器名称 type-string :return: """ ip_address = utils.get_ip_address(client=client, instance_id=instance_id) logging.info(f"服务器信息：{instance_id}/{ip_address}") client = docker.DockerClient(base_url=f'tcp://{ip_address}:2375', timeout=60) # 移除旧的容器 container_remove_retry = 3 i = 0 while True: if i >= container_remove_retry: logging.error(f"容器不存在或者无法删除当前容器, instance = {instance_id}/{ip_address}") sys.exit() try: container_id = client.containers.get(container_name) container_id.remove(force=True) break except Exception as e: i += 1 # 删除旧镜像 images_remove_retry = 3 j = 0 while True: if j >= images_remove_retry: logging.error(f"镜像不存在，无法获取到镜像ID, instance = {instance_id}/{ip_address}") sys.exit() try: images = client.images.list() for image in images: client.images.remove(force=True, image=image.tags[0]) time.sleep(2) global remove_container_instances remove_container_instances.append(instance_id) break except Exception as e: i += 1 async def update_instance(create_client, slb_client, instance_ids, max_workers, version): """ 线上机器更新 :param create_client: :param slb_client: slb客户端连接 :param instance_ids: instanceId type-list :param max_workers: :param version: 版本标记 :return: """ instance_ids_group = [instance_ids] update_finished_count = 0 for instance_id_list in instance_ids_group: logging.info(f"update instances: {instance_id_list}") # 1. 摘流量 utils.set_instance_weight_process(client=slb_client, slb_id=rov_server_config.slb_id, instance_id_list=instance_id_list, weight_list=[(0, 60)]) logging.info(f"set weight with 0 finished, instances: {instance_id_list}") # 2. 异步移除旧容器并删除旧镜像 global remove_container_instances remove_container_instances = [] container_name = 'rov-server' loop = asyncio.get_running_loop() executor = ThreadPoolExecutor(max_workers=max_workers) tasks = [ loop.run_in_executor(executor, remove_container_image, *args) for args in [(slb_client, instance_id, container_name) for instance_id in instance_id_list] ] await asyncio.wait(tasks) logging.info(f"remove container & images finished, instances: {remove_container_instances}," f" count: {len(remove_container_instances)}") if len(remove_container_instances) < len(instance_id_list): logging.error(f"remove container image failed| " f"request count: {len(instance_id_list)}, removed count: {len(remove_container_instances)}") sys.exit() # 3. 发送启动脚本到机器上 utils.send_file_to_ecs(client=create_client, instance_id_list=instance_id_list, **rov_server_config.start_sh) logging.info(f"send start shell file finished, instances: {instance_id_list}, count: {len(instance_id_list)}") # 4. 启动服务 server_start_sh = os.path.join(rov_server_config.start_sh['target_dir'], rov_server_config.start_sh['name']) server_start_commend = f"sh {server_start_sh} {version}" utils.run_command(client=create_client, instance_ids=instance_id_list, command=server_start_commend) # 5. 异步探活 global health_instances health_instances = [] loop = asyncio.get_running_loop() executor = ThreadPoolExecutor(max_workers=max_workers) tasks = [ loop.run_in_executor(executor, server_health_check, *args) for args in [(slb_client, instance_id) for instance_id in instance_id_list] ] await asyncio.wait(tasks) logging.info(f"health instances: {health_instances}, count: {len(health_instances)}") # 6. 挂载流量 if len(health_instances) == len(instance_id_list): # 所有机器探活成功 time.sleep(60) utils.add_backend_servers(client=slb_client, slb_id=rov_server_config.slb_id, instances=health_instances) health_instance_ids = [instance_id for instance_id, _ in health_instances] add_weight_list = [(10, 30), (20, 20), (40, 10), (60, 10), (80, 10), (100, 10)] utils.set_instance_weight_process(client=slb_client, slb_id=rov_server_config.slb_id, instance_id_list=health_instance_ids, weight_list=add_weight_list) logging.info(f"finished instances: {health_instances}, count: {len(health_instances)}") update_finished_count += len(health_instances) logging.info(f"update finished: {update_finished_count}/{len(instance_ids)}") else: logging.info(f"health instances: {health_instances}, count: {len(health_instances)}") sys.exit() def remove_instances(create_client, slb_client, instance_ids): """ 停止并释放机器 :param create_client: :param slb_client: :param instance_ids: instanceId type-list :return: None """ # 1. 摘流量 utils.set_instance_weight_process(client=slb_client, slb_id=rov_server_config.slb_id, instance_id_list=instance_ids, weight_list=[(0, 60)]) logging.info(f"set weight = 0 finished, instances: {instance_ids}") time.sleep(10) # 2.移除slb utils.remove_backend_servers(client=slb_client, slb_id=rov_server_config.slb_id, instances=instance_ids) # 3. 停止机器 utils.stop_instances(client=create_client, instance_ids=instance_ids) logging.info(f"instances stop finished, instances: {instance_ids}") # 4. 判断机器运行状态是否为Stopped while True: response = utils.get_instances_status(client=create_client, instance_ids=instance_ids) if response.get('Code') is None: instances_list = response.get('InstanceStatuses').get('InstanceStatus') # logging.info(instances_list) stopped_instances = [instance.get('InstanceId') for instance in instances_list if instance.get('Status') == 'Stopped'] if len(stopped_instances) == len(instance_ids): logging.info(f"instances stopped status set success, instances: {stopped_instances}") break else: logging.info(f"stopped instances count = {len(stopped_instances)}, instances: {stopped_instances}") time.sleep(10) else: logging.error(response) sys.exit() # 5. 释放机器 response = utils.release_instances(client=create_client, instance_ids=stopped_instances) if response.get('Code') is None: logging.info(f"release instances finished, instances: {stopped_instances}") else: logging.error(f"release instances fail!!!") sys.exit() def main(): try: version = sys.argv[1] num = int(sys.argv[2]) slb_client = utils.connect_client(access_key_id=rov_server_config.slb_client_params['access_key_id'], access_key_secret=rov_server_config.slb_client_params['access_key_secret'], region_id=rov_server_config.slb_client_params['region_id']) create_client = utils.connect_client(access_key_id=rov_server_config.create_client_params['access_key_id'], access_key_secret=rov_server_config.create_client_params['access_key_secret'], region_id=rov_server_config.create_client_params['region_id']) # 1. 获取slb下所有机器 online_instance_ids = utils.get_instance_ids(client=slb_client, slb_id=rov_server_config.slb_id) online_instance_count = len(online_instance_ids) logging.info(f"online instance count: {online_instance_count}.") logging.info(f"online instance ids: {online_instance_ids}") # 2. 对其中n台机器进行更新 update_instance_ids = online_instance_ids[:num] # 3. 扩容机器并启动新服务 扩容数量：灰度发布机器数量 logging.info(f"ess instances start ...") logging.info(f"ess instance count: {num}") asyncio.run(ess_instance(create_client=create_client, slb_client=slb_client, ess_count=num, max_workers=2, version=version)) logging.info(f"ess instances end!") # 4. 原有机器进行更新 logging.info(f"update online instances start ...") asyncio.run(update_instance(create_client=create_client, slb_client=slb_client, instance_ids=update_instance_ids, max_workers=2, version=version)) logging.info(f"update online instances end!") # 5. 停止并释放扩容机器 logging.info(f"stop & release instances start ...") remove_instances(create_client=create_client, slb_client=slb_client, instance_ids=ess_instances) logging.info(f"stop & release instances end!") except Exception as e: logging.error(e) sys.exit() if __name__ == '__main__': main()