所以我推荐的方法是使用两个单独的容器，一个用于API，另一个用于前端。

#1 API

# Step 1 - build
FROM microsoft/dotnet:2.2-sdk AS build
WORKDIR /build

COPY . . # copy everything from where the dockerfile is,to current workdir inside the container (sloppy but it works)
RUN dotnet publish -o out # compile the dll's and put them in an "out" directory

# Step 2 - runtime (compiled dll:s)
FROM microsoft/dotnet:2.2-aspnetcore-runtime
WORKDIR /app
COPY --from=build /build/out . # copy your compiled dll's from your BUILD CONTAINER and place them inside your runtime container

EXPOSE 5000/tcp # this is only to document what port is in use
ENTRYPOINT [ "dotnet","API.dll","--urls","http://*:5000"] # the name of your DLL to run

我认为对“调试” dockerfiles中的构建有用的一件事是添加RUN ls -al以输出当前目录，因此您可以看到生成了什么文件的位置。随时添加它们。

#2 Frontend - angular example,but is probably very simular to react

# build
FROM node:10.9.0-alpine as node
WORKDIR /app

COPY . .

# npm install
RUN npm i -g @angular/cli@8.3.2
RUN npm install
RUN ng build --prod

# runtime
FROM nginx:1.13.12-alpine
COPY --from=node /app/out /usr/share/nginx/html

# RUN rm -r /etc/nginx/conf.d/default.conf # replace with your own server config if you like
COPY --from=node /app/default.conf /etc/nginx/conf.d/

好吧，假设您现在已经构建了Docker容器，前端和API。仅启动单个容器，请使用docker run <image name>-但这尚未将任何端口映射到您的host machine。为此，请添加用于端口映射的参数-类似于docker run -p 3999:5000 <image name>。要验证其是否正在运行，请打开浏览器并导航至localhost:3999/your/api/endpoint。

第一个参数-p 3999:5000将您的主机端口:3999映射到隔离的容器端口:5000，您可以随意交换它。

有关更多选项，请参见docker --help。

另一个有用的技巧是从主机到正在运行的容器中输入命令shell，为此，请执行docker exec -it <container_id> bash或docker exec -it <container_id> sh。要列出正在运行的容器，请执行docker ps或docker ps -a。

如果您要我更新此帖子，请随时提问。干杯！