记用vs调式docker环境下web程序的一处坑

若选择web项目支持https，此时launchSettings.json文件为：

"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:54372",
"sslPort": 54373
}

此时sslPort不为0（开启https时）http和https两种协议的端口都固定Dockerfile文件中可以不暴露端口(EXPOSE可以不设置)，如：

#EXPOSE 80
#EXPOSE 443

sslPort修改为0（关闭https时）每次重新编译程序端口号会递增，无法固定。Dockerfile文件中必须暴露端口，如：

EXPOSE 80

80和443两个默认端口都可以通过Dockerfile进行修改，如：

ENV ASPNETCORE_URLS http://+:81

或

ENV ASPNETCORE_URLS http://+:81,https://+:444

EXPOSE 跟着改。

另：vs+docker启动环境下，多种方式修改配置，环境变量始终为Development，代码内修改除外。

Production部分

启用https时docker-compose.override.yml文件为

aspnetcore环境变量修改为非Development时，若无证书，docker-compose启动会报错

此时内容为：

version: ‘3.4‘

services:
  dockerlinuxdemo.web:
    restart: always
    environment:
      - ASPNETCORE_ENVIRONMENT=Production
      - ASPNETCORE_URLS=https://+:443;http://+:80
      - ASPNETCORE_HTTPS_PORT=38112
    ports:
      - "38111:80"
      - "38112:443"
    volumes:
      - ./DockerLinuxDemo.Web/bin/Release/netcoreapp2.1/publish:/app
      - ${APPDATA}/ASP.NET/Https:/root/.aspnet/https:ro
      - ${APPDATA}/Microsoft/UserSecrets:/root/.microsoft/usersecrets:ro

不启用https时修改ASPNETCORE_URLS即可，ASPNETCORE_HTTPS_PORT和ports并不影响：

version: ‘3.4‘

services:
  dockerlinuxdemo.web:
    restart: always
    environment:
      - ASPNETCORE_ENVIRONMENT=Production
      - ASPNETCORE_URLS=http://+:80
      - ASPNETCORE_HTTPS_PORT=38112
    ports:
      - "38111:80"
      - "38112:443"
    volumes:
      - ./DockerLinuxDemo.Web/bin/Release/netcoreapp2.1/publish:/app
      - ${APPDATA}/ASP.NET/Https:/root/.aspnet/https:ro
      - ${APPDATA}/Microsoft/UserSecrets:/root/.microsoft/usersecrets:ro

docker-compose up --build -d 挺方便的

原文地址：https://www.cnblogs.com/wintersoft/p/9902734.html