import asyncio import sys import time import requests import alb_utils import logging import os import docker import gateway_config from concurrent.futures import ThreadPoolExecutor health_instances = [] ess_instances = [] remove_container_instances = [] def server_health_check(ecs_client, instance_id): """ 服务健康检查 :param ecs_client: 客户端连接 :param instance_id: instanceId :return: """ global health_instances ip_address = alb_utils.get_ip_address(ecs_client=ecs_client, instance_id=instance_id) while True: health_check_url = f"http://{ip_address}:9000/healthcheck" try: http_code = requests.get(health_check_url).status_code except: logging.info(f"images is downloading ip：{ip_address}") http_code = 0 if http_code == 200: health_instances.append((instance_id, ip_address)) logging.info(f"health check success, instance: {instance_id}/{ip_address}") break else: time.sleep(10) async def ess_instance(ecs_client, alb_client, ess_count, max_workers, version, port): """ 扩容机器并运行新服务 :param ecs_client: 购买机器客户端连接 :param alb_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 :param port: 后端服务器使用的端口 :return: """ # 1. 购买机器并启动 ess_instance_ids = alb_utils.create_multiple_instances( amount=ess_count, ecs_client=ecs_client, **gateway_config.instance_config_j, ) time.sleep(60) # 2. 发送启动脚本到机器上 alb_utils.send_file_to_ecs(ecs_client=ecs_client, instance_id_list=ess_instance_ids, **gateway_config.start_sh) logging.info(f"send start shell file finished, count: {len(ess_instance_ids)} instances: {ess_instance_ids}") # 3. 启动服务 server_start_sh = os.path.join(gateway_config.start_sh['target_dir'], gateway_config.start_sh['name']) server_start_commend = f"sh {server_start_sh} {version}" alb_utils.run_command(ecs_client=ecs_client, instance_ids=ess_instance_ids, command=server_start_commend) logging.info(f"start server finish, count: {len(ess_instance_ids)} instances: {ess_instance_ids}") # 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 [(ecs_client, instance_id) for instance_id in ess_instance_ids] ] await asyncio.wait(tasks) logging.info(f"health instances count: {len(health_instances)}, 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(20) health_instance_ids = [instance_id for instance_id, _ in health_instances] # for server_group_id in gateway_config.server_group_id_list: # for instance_id in health_instance_ids: alb_utils.add_servers_to_server_group(alb_client, gateway_config.server_group_id_list, health_instance_ids, weight=0, port=port) logging.info(f"Successfully added count: {len(health_instance_ids)} health_instance_ids {health_instance_ids} to server groups {gateway_config.server_group_id_list}.") time.sleep(20) logging.info(f"start update weight count: {len(health_instance_ids)} instances: {health_instance_ids} server groups: {gateway_config.server_group_id_list}.") add_weight_list = [(10, 5), (20, 5), (40, 5), (60, 5), (80, 5), (100, 5)] # add_weight_list = [(10, 10), (20, 10), (40, 10), (60, 10), (80, 10), (100, 10)] alb_utils.update_server_group_servers_attribute(alb_client, server_group_id_list=gateway_config.server_group_id_list, instance_id_list=health_instance_ids, weight_list=add_weight_list, port=port) 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(ecs_client, instance_id, container_name_list): """ 移除旧容器并删除旧镜像 :param ecs_client: 客户端连接 :param instance_id: instanceId type-string :param container_name: 容器名称 type-string :return: """ ip_address = alb_utils.get_ip_address(ecs_client=ecs_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: flag = False for container_name in container_name_list: try: container_id = client.containers.get(container_name) container_id.remove(force=True) flag = True break except: continue if flag: 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(ecs_client, alb_client, instance_ids, max_workers, version, port): """ 线上机器更新 :param ecs_client: :param alb_client: alb客户端连接 :param instance_ids: instanceId type-list :param max_workers: :param version: 版本标记 :param port: 后端服务器使用的端口 :return: """ sub_index = len(instance_ids)//2 instance_ids_group = [instance_ids[:sub_index], instance_ids[sub_index:]] update_finished_count = 0 for instance_id_list in instance_ids_group: logging.info(f"update instances: {instance_id_list}") # 1. 摘流量 alb_utils.update_server_group_servers_attribute(alb_client=alb_client, server_group_id_list=gateway_config.server_group_id_list, instance_id_list=instance_id_list, weight_list=[(0, 20)], port=port) logging.info(f"set weight with 0 finished, count: {len(instance_id_list)} 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 = 'longvideoapi' container_name_list = ['piaoquan-gateway', 'gateway'] loop = asyncio.get_running_loop() executor = ThreadPoolExecutor(max_workers=max_workers) tasks = [ loop.run_in_executor(executor, remove_container_image, *args) for args in [(ecs_client, instance_id, container_name_list) 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 alb_utils.send_file_to_ecs(ecs_client=ecs_client, instance_id_list=instance_id_list, **gateway_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(gateway_config.start_sh['target_dir'], gateway_config.start_sh['name']) server_start_commend = f"sh {server_start_sh} {version}" alb_utils.run_command(ecs_client=ecs_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 [(ecs_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(10) health_instance_ids = [instance_id for instance_id, _ in health_instances] add_weight_list = [(10, 5), (20, 5), (40, 5), (60, 5), (80, 5), (100, 5)] # add_weight_list = [(10, 10), (20, 10), (40, 10), (60, 10), (80, 10), (100, 10)] alb_utils.update_server_group_servers_attribute(alb_client, server_group_id_list=gateway_config.server_group_id_list, instance_id_list=health_instance_ids, weight_list=add_weight_list, port=port) 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(ecs_client, alb_client, instance_ids, port): """ 停止并释放机器 :param ecs_client: :param alb_client: :param instance_ids: instanceId type-list :param port: 后端服务器使用的端口 :return: None """ # 1. 摘流量 weight_list = [(0, 20)] # 设置权重为0，等待20秒 try: alb_utils.update_server_group_servers_attribute(alb_client=alb_client, server_group_id_list=gateway_config.server_group_id_list, instance_id_list=instance_ids, weight_list=weight_list, port=port) except Exception as e: logging.error(f"Failed to set instance weight: {e}") sys.exit() time.sleep(10) # 2.移除alb # for server_group_id in gateway_config.server_group_id_list: try: alb_utils.remove_servers_from_server_group(alb_client=alb_client, server_group_id_list=gateway_config.server_group_id_list, instance_ids=instance_ids, port=port) logging.info(f"Successfully removed instances: {instance_ids} from server group {gateway_config.server_group_id_list}.") except Exception as e: logging.error(f"Failed to remove instances: {instance_ids} from server group {gateway_config.server_group_id_list}: {e}") logging.info(f"Remove from ALB finished, instances: {instance_ids}") # 3. 停止机器 alb_utils.stop_instances(ecs_client=ecs_client, instance_ids=instance_ids) # stop_response = alb_utils.stop_instances(ecs_client=ecs_client, instance_ids=instance_ids) # if stop_response.get('Code') is None: # logging.info(f"Instances stop finished, instances: {instance_ids}") # else: # logging.error(f"Failed to stop instances: {stop_response}") # sys.exit() # 4. 判断机器运行状态是否为Stopped # while True: stopped_instances = alb_utils.get_instances_status(ecs_client=ecs_client, instance_ids=instance_ids) # response = alb_utils.get_instances_status(ecs_client=ecs_client, instance_ids=instance_ids) # if response.get('Code') is None: # instances_list = response.get('InstanceStatuses').get('InstanceStatus') # 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(5) # else: # logging.error(response) # sys.exit() # 5. 释放机器 alb_utils.release_instances(ecs_client=ecs_client, instance_ids=stopped_instances) # release_response = alb_utils.release_instances(ecs_client=ecs_client, instance_ids=stopped_instances) # if release_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] alb_client = alb_utils.connect_alb_client( access_key_id=gateway_config.alb_client_params['access_key_id'], access_key_secret=gateway_config.alb_client_params['access_key_secret'], endpoint=gateway_config.alb_client_params['endpoint'] ) ecs_client = alb_utils.connect_client(access_key_id=gateway_config.ecs_client_params['access_key_id'], access_key_secret=gateway_config.ecs_client_params['access_key_secret'], region_id=gateway_config.ecs_client_params['region_id']) # 1. 获取alb下所有机器 online_instance_ids = alb_utils.list_server_group_servers(alb_client=alb_client, server_group_id=gateway_config.server_group_id_list[0]) online_instance_count = len(online_instance_ids) logging.info(f"online instance count: {online_instance_count} instance_ids: {online_instance_ids}") # 2. 扩容机器并启动新服务 扩容数量：线上机器数量//2 logging.info(f"ess instances start ...") ess_instance_count = online_instance_count // 2 logging.info(f"ess instance count: {ess_instance_count}") asyncio.run(ess_instance(ecs_client=ecs_client, alb_client=alb_client, ess_count=ess_instance_count, max_workers=2, version=version, port=gateway_config.port)) logging.info(f"ess instances end!") # 3. 原有机器进行更新 logging.info(f"update online instances start ...") asyncio.run(update_instance(ecs_client=ecs_client, alb_client=alb_client, instance_ids=online_instance_ids, max_workers=8, version=version, port=gateway_config.port)) logging.info(f"update online instances end!") # 4. 停止并释放扩容机器 logging.info(f"stop & release instances start ...") remove_instances(ecs_client=ecs_client, alb_client=alb_client, instance_ids=ess_instances, port=gateway_config.port) logging.info(f"stop & release instances end!") except Exception as e: logging.error(e) sys.exit() if __name__ == '__main__': main()