将不同的域指向单个EC2实例上的不同Docker容器？
我有一个运行在Docker容器中的简单NodeJS站点，其端口映射到主机上的端口80。我有一个指向EC2实例IP的域，并且一切正常。
I have a simple NodeJS site running inside a Docker container, with its ports mapped to port 80 on the host. I have a domain pointing to the IP of the EC2 instance, and everything is working as expected.
如果我想运行另一个从Docker容器上分离的NodeJS站点，在同一实例中，如何将特定域名映射到特定Docker容器？
If I want to run another, separate NodeJS site from a Docker container on the same instance, how can I map specific domain names to specific Docker containers?
例如，假设我的EC2实例的IP为22.33.44.55，并且我的域为domain -a.com和domain-b.com。我的dockerized NodeJS应用程序是siteA和siteB。
Eg, let's assume the IP of my EC2 instance is 22.33.44.55 and my domains are domain-a.com and domain-b.com. My dockerized NodeJS applications are siteA and siteB.
domain-a.com配置为指向22.33.44.55。 siteA正在侦听该IP地址到端口80，这是我当前拥有的地址。
domain-a.com is configured to point to 22.33.44.55. siteA is listening on that IP address to port 80 - this is what I currently have.
domain-b.com配置为指向22.33.44.55。我希望将此流量映射到siteB Docker容器。
domain-b.com is configured to point to 22.33.44.55. I want this traffic mapped to the siteB Docker container.
您可以在主机上设置Nginx反向代理并绑定为单独的代理端口。这篇文章中的问题和答案很好地解释了这一点，因此我不再赘述。
You could setup a nginx reverse proxy on the host and bind to seperate ports. The question/and answer on this article explain it quite nicely so I won't repeat it all: