无法运行 net core docker 容器

Question

从 docker-compose 重构为每个项目的单独 Docker 文件后，我无法运行容器，它只是退出。我同时使用 docker 和 docker-compose，因为我以后会有更多项目。

我的docker文件如下。

docker-compose.yml

version: '3'

services:

  customer:
    image: customer
    container_name: customer
    build:
      context: ./Customer
      dockerfile: Dockerfile

客户/Dockerfile

FROM mcr.microsoft.com/dotnet/core/runtime:2.2

WORKDIR /Customer

EXPOSE 80

COPY ./bin/Release/netcoreapp2.2/ service/

ENTRYPOINT ["dotnet", "service/Customer.dll"]

---

我之前在 docker-compose 文件中也有这个。如何在Dockerfile 内将6001 映射到80？

ports:
  - 6001:80

---

尝试 2

FROM mcr.microsoft.com/dotnet/core/sdk:2.2

WORKDIR /Customer

ENV DATABASE_HOST=database
ENV DATABASE_NAME=db
ENV DATABASE_USER=sa
ENV DATABASE_PASSWORD=Password

EXPOSE 80

COPY . .

CMD dotnet build

ENTRYPOINT ["dotnet", "Customer/bin/Release/netcoreapp2.2/Department.dll"]

---

尝试 3

从主站点复制。

从这里复制https://docs.docker.com/engine/examples/dotnetcore/

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
WORKDIR /app

# Copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# Copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o out

# Build runtime image
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "aspnetapp.dll"]

您的意思是运行 dotnet SDK 命令吗？请安装 dotnet SDK 来自：https://go.microsoft.com/fwlink/?LinkID=798306&clcid=0x409

Answer 1

这是一个懒惰的基本 docker 文件。我添加了一些 cmets 和一些有用的构建/调试选项，例如：“RUN ls -al”来列出当前目录。就像一个 linux 虚拟机。

# step 1 - building you app with SDK as base image
FROM microsoft/dotnet:2.2-sdk AS build-env # call the environment build
WORKDIR /build # create a work dir

COPY . . # you don't need copy everything to build your app, but this is for simplisity

RUN ls -al # linux command to list dir content

RUN cd /Customer && dotnet publish -o out # actually building the app and publishing to /out dir

RUN cd /Customer && ls -al # navigate to the folder you copied and list dir

FROM microsoft/dotnet:2.2-aspnetcore-runtime AS runtime # step 2, runtime env (slimmed down container)
WORKDIR /app # create workdir
COPY --from=build-env /<YOUR_BULD_PATH>/out ./ # copy from prev container build output

RUN ls -al # list again

ENTRYPOINT ["dotnet", "Department.dll", "--urls", "http://*:6001"] # example from .NET Core 2.2 webapi with port 6005, this might not be your case

现在要运行 docker-compose，只需像您已经完成的那样指出 docker 文件。但是 docker/docker-compose 现在应该可以正常工作了。当然你需要稍微调整一下 docker 文件，我不知道你的应用程序或文件夹结构。

只是一个提示，如果你想单独运行你的 docker 文件，当你启动它来映射端口时不要忘记 args --> -p 6001:80