node.js - AWS EC2 端口 80 连接被拒绝

Question

我正在尝试在 aws EC2 上运行 Node js 服务器
我的 docker 文件:

FROM node:lts-alpine

WORKDIR /usr/src/app

COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 80

CMD ["node", "server.js"]

在我的 server.js是一个监听 80 端口的快速网络服务器。
我将端口 80 包含在入站规则中:

但是，当我尝试打开公共(public) DNS 或关联域时，我仍然得到以下信息:

任何想法我做错了什么？

Answer 1

看来您的容器的 80端口未分配给主机 '运动。 EXPOSE指令不会为您执行此操作。来自 Docker docs :

The EXPOSE instruction does not actually publish the port. It functions as a type of documentation between the person who builds the image and the person who runs the container, about which ports are intended to be published. To actually publish the port when running the container, use the -p flag on docker run to publish and map one or more ports, or the -P flag to publish all exposed ports and map them to high-order ports.