问题描述
正如标题所示，我有一个无法从主机端口绑定到容器端口的容器.我尝试搜索类似的问题，但是自从Microsoft在sdk映像中引入了带有dotnet watch的microsoft/dotnet docker repo之后，就没有发现与在docker容器中使用dotnet watch相关的任何信息.
As the title indicates, i have a container that is unable to bind from host port to container port. I tried searching for similar issues, but have not found any related to using dotnet watch in a docker container since Microsoft introduced the microsoft/dotnet docker repo with dotnet watch built into the sdk image.
任何关于我做错事情的建议都将受到赞赏.
Any suggestions as to what i am doing wrong are much appreciated.
Dockerfile
FROM microsoft/dotnet:2.1.301-sdk as build
ENV DOTNET_USE_POLLING_FILE_WATCHER 1
WORKDIR /app
COPY . .
RUN dotnet restore
EXPOSE 5000-5001
ENTRYPOINT [ "dotnet", "watch", "run", "--no-restore"]
docker-compose.yml
version: "3"
services:
esportapp:
container_name: esportapp
image: esportapp:dev
build:
context: .
dockerfile: Docker/dev.Dockerfile
volumes:
- esportapp.volume:/app
ports:
- "5000:5000"
- "5001:5001"
volumes:
esportapp.volume:
完全错误:
esportapp | Hosting environment: Development
esportapp | Content root path: /app
esportapp | Now listening on: https://localhost:5001
esportapp | Now listening on: http://localhost:5000
esportapp | Application started. Press Ctrl+C to shut down.
esportapp | warn: Microsoft.AspNetCore.Server.Kestrel[0]
esportapp | Unable to bind to https://localhost:5001 on the IPv6 loopback interface: 'Cannot assign requested address'.
esportapp | warn: Microsoft.AspNetCore.Server.Kestrel[0]
esportapp | Unable to bind to http://localhost:5000 on the IPv6 loopback interface: 'Cannot assign requested address'.
推荐答案
我自己也遇到了这个问题.我认为dotnet watch run与本地主机类型的URL配合不好.尝试在您的容器中将托管网址设置为https://0.0.0.0:5000.
Just ran into this problem myself. I don't think dotnet watch run plays nicely with localhost type urls. Try setting your hosting url to https://0.0.0.0:5000 in your container.
在dockerfile中具有:
In the dockerfile with:
ENTRYPOINT [ "dotnet", "watch", "run", "--no-restore", "--urls", "https://0.0.0.0:5000"]
或者在launchSettings.json中，例如:
Or in launchSettings.json like:
{
"profiles": {
"[Put your project name here]": {
"commandName": "Project",
"launchBrowser": true,
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development",
"DOTNET_USE_POLLING_FILE_WATCHER": "true"
},
"applicationUrl": "https://0.0.0.0:5000/"
}
}
}
现在要使其自动从容器中重新加载，您必须使用轮询文件监视程序.这就是第二个环境变量的用途. (这很常见，您必须使用webpack，angular等来做到这一点.)
Now to get it to automatically reload from within the container you have to use the polling file watcher. That's what the second environment variable is for. (This is pretty common, you've got to do this with webpack, angular, etc).
根据您的情况，您需要将esportsapp.volume更改为主机上的目录:
In your case, you need to change the esportsapp.volume to a directory on your host:
volumes:
- ./:/app
这会将容器中的/app卷映射到docker-compose目录.您面临的问题是该应用程序内置在项目的默认docker-compose网络上的某个卷中，因此，当您在源目录中更改文件时，该卷中实际上并没有更改.但是，使用此修复程序，您将遇到容器内部dotnet恢复和dotnet监视更改主机文件的问题.如果您有兴趣，可以解决所有问题……
That will map the /app volume in your container to the docker-compose directory. The problem you're facing is that the app is built in a volume on your project's default docker-compose network, so when you change a file in the source directory, it's not actually changing in that volume. With this fix, however, you'll run into the problem of the dotnet restore and dotnet watch inside the container changing your host's files. There's a fix for all of that, if you're interested...
我通常的.Net Core App Docker设置
要调试，请运行:docker-compose -f run.yml up --build
要构建发行版:docker-compose -f build.yml up --build
项目结构
/ # source control root
/build.yml # docker-compose file for building a release
/run.yml # docker-compose file for running locally & debugging
/project # an application
/project/build.Dockerfile # the docker container that will build "project" for release
/project/run.Dockerfile # the docker container that will build and run "project" locally for debugging
/project/.dockerignore # speeds up container builds by excluding large directories like "packages" or "node_modules"
/project/src # where I hide my source codez
/project/src/Project.sln
/project/src/Project/Project.csproj
/project/src/Project/Directory.Build.props # keeps a docker mapped volume from overwriting .dlls on your host
/project/src/Project.Data/Project.Data.csproj # typical .Net project structure
/web-api # another application...
Directory.Build.props (将其与.csproj放在同一文件夹中，以防止dotnet watch run命令与主机上的源目录混淆)
Directory.Build.props (put this in the same folder as your .csproj, keeps your dotnet watch run command from messing with the source directory on your host)
<Project>
<PropertyGroup>
<DefaultItemExcludes>$(DefaultItemExcludes);$(MSBuildProjectDirectory)/obj/**/*</DefaultItemExcludes>
<DefaultItemExcludes>$(DefaultItemExcludes);$(MSBuildProjectDirectory)/bin/**/*</DefaultItemExcludes>
</PropertyGroup>
<PropertyGroup Condition="'$(DOTNET_RUNNING_IN_CONTAINER)' == 'true'">
<BaseIntermediateOutputPath>$(MSBuildProjectDirectory)/obj/container/</BaseIntermediateOutputPath>
<BaseOutputPath>$(MSBuildProjectDirectory)/bin/container/</BaseOutputPath>
</PropertyGroup>
<PropertyGroup Condition="'$(DOTNET_RUNNING_IN_CONTAINER)' != 'true'">
<BaseIntermediateOutputPath>$(MSBuildProjectDirectory)/obj/local/</BaseIntermediateOutputPath>
<BaseOutputPath>$(MSBuildProjectDirectory)/bin/local/</BaseOutputPath>
</PropertyGroup>
</Project>
run.yml (用于调试的docker-compose.yml)
run.yml (docker-compose.yml for debugging)
version: "3.5"
services:
project:
build:
context: ./project
dockerfile: run.Dockerfile
ports:
- 5000:80
volumes:
- ./project/src/Project:/app
run.Dockerfile (用于调试的Dockerfile)
run.Dockerfile (the Dockerfile for debugging)
FROM microsoft/dotnet:2.1-sdk
# install the .net core debugger
RUN apt-get update
RUN apt-get -y --no-install-recommends install unzip
RUN apt-get -y --no-install-recommends install procps
RUN rm -rf /var/lib/apt/lists/*
RUN curl -sSL https://aka.ms/getvsdbgsh | bash /dev/stdin -v latest -l /vsdbg
VOLUME /app
WORKDIR /app
CMD dotnet watch run --urls http://0.0.0.0:80
build.yml (用于构建发行版的docker-compose.yml)
build.yml (the docker-compose.yml for building release versions)
version: "3.5"
services:
project:
build:
context: ./project
dockerfile: build.Dockerfile
volumes:
- ./project:/app
build.Dockerfile (用于构建发行版的Dockerfile)
build.Dockerfile (the Dockerfile for building release versions)
FROM microsoft/dotnet:2.1-sdk
VOLUME /app
# restore as a separate layer to speed up builds
WORKDIR /src
COPY src/Project/Project.csproj .
RUN dotnet restore
COPY src/Project/ .
CMD dotnet publish -c Release -o /app/out/
这篇关于Docker dotnet watch run错误:无法绑定到IPv6回送接口上的https://localhost:5000的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！