蓝绿部署

blue/green deployment is a deployment strategy in which you create two separate, but identical environments. One environment (blue) is running the current application version and one environment (green) is running the new application version. Using a blue/green部署策略通过简化部署失败时的回滚过程来提高应用程序可用性并降低部署风险。在绿色环境上完成测试后，实时应用程序流量将定向到绿色环境并弃用蓝色环境。

许多 AWS 部署服务支持蓝/绿部署策略，包括 Elastic Beanstalk OpsWorks、、、 CloudFormation和 Amazon ECS。 CodeDeploy有关为您的应用程序实施蓝/绿部署流程的更多详细信息和策略，请参阅 AWS 上的蓝/绿部署。