英文:
I can't access asp.net core project from host machine
问题
docker-compose.yml:
version: "3.9"services:aspnetcore_app_service:build: "./"ports:- 5001:5001
Dockerfile:
FROM ubuntu:20.04RUN apt updateRUN apt install -y wgetRUN wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.debRUN dpkg -i packages-microsoft-prod.debRUN apt updateRUN apt install -yq mono-complete aspnetcore-runtime-7.0 dotnet-sdk-7.0RUN mkdir aspnetcore_appRUN dotnet new mvc -o aspnetcore_appWORKDIR aspnetcore_appCMD [ "dotnet","watch","run","--urls=http://localhost:5001/"]
"docker-compose up" response:
PS D:\Desktop\Test3\Test3> docker-compose up[+] Building 0.0s (0/0)[+] Running 1/1✔ Container test3-aspnetcore_app_service-1 Created 0.1sAttaching to test3-aspnetcore_app_service-1test3-aspnetcore_app_service-1 | dotnet watch 🚀 Startedtest3-aspnetcore_app_service-1 | Building...test3-aspnetcore_app_service-1 | warn: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[35]test3-aspnetcore_app_service-1 | No XML encryptor configured. Key {5687eac2-4f72-43f1-b276-d215ea6998ea} may be persisted to storage in unencrypted form.test3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[14]test3-aspnetcore_app_service-1 | Now listening on: http://localhost:5001test3-aspnetcore_app_service-1 | dotnet watch 🚀 Unable to launch the browser. Navigate to http://localhost:5001test3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[0]test3-aspnetcore_app_service-1 | Application started. Press Ctrl+C to shut down.test3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[0]test3-aspnetcore_app_service-1 | Hosting environment: Developmenttest3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[0]test3-aspnetcore_app_service-1 | Content root path: /aspnetcore_apptest3-aspnetcore_app_service-1 | warn: Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]test3-aspnetcore_app_service-1 | Failed to determine the https port for redirect.
"curl http://localhost:5001" container response:
# curl http://localhost:5001<!DOCTYPE html><html lang="en">
"curl http://localhost:5001 "host machine response:
C:\Users\Abdullah>curl http://localhost:5001curl: (52) Empty reply from server
I created an ASP.NET Core project. I want editable, recompileable, live server and these in one container.
英文:
Project
docker-compose.yml:
version: "3.9"services:aspnetcore_app_service:build: "./"ports:- 5001:5001
Dockerfile:
FROM ubuntu:20.04RUN apt updateRUN apt install -y wgetRUN wget https://packages.microsoft.com/config/ubuntu/22.04/packages-microsoft-prod.debRUN dpkg -i packages-microsoft-prod.debRUN apt updateRUN apt install -yq mono-complete aspnetcore-runtime-7.0 dotnet-sdk-7.0RUN mkdir aspnetcore_appRUN dotnet new mvc -o aspnetcore_appWORKDIR aspnetcore_appCMD [ "dotnet","watch","run","--urls=http://localhost:5001/"]
"docker-compose up" response:
PS D:\Desktop\Test3\Test3> docker-compose up[+] Building 0.0s (0/0)[+] Running 1/1✔ Container test3-aspnetcore_app_service-1 Created 0.1sAttaching to test3-aspnetcore_app_service-1test3-aspnetcore_app_service-1 | dotnet watch 🚀 Startedtest3-aspnetcore_app_service-1 | Building...test3-aspnetcore_app_service-1 | warn: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[35]test3-aspnetcore_app_service-1 | No XML encryptor configured. Key {5687eac2-4f72-43f1-b276-d215ea6998ea} may be persisted to storage in unencrypted form.test3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[14]test3-aspnetcore_app_service-1 | Now listening on: http://localhost:5001test3-aspnetcore_app_service-1 | dotnet watch 🌐 Unable to launch the browser. Navigate to http://localhost:5001test3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[0]test3-aspnetcore_app_service-1 | Application started. Press Ctrl+C to shut down.test3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[0]test3-aspnetcore_app_service-1 | Hosting environment: Developmenttest3-aspnetcore_app_service-1 | info: Microsoft.Hosting.Lifetime[0]test3-aspnetcore_app_service-1 | Content root path: /aspnetcore_apptest3-aspnetcore_app_service-1 | warn: Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]test3-aspnetcore_app_service-1 | Failed to determine the https port for redirect.
"curl http://localhost:5001" container response:
# curl http://localhost:5001<!DOCTYPE html><html lang="en">
**"curl http://localhost:5001 "host machine response: **
host machine
C:\Users\Abdullah>curl http://localhost:5001curl: (52) Empty reply from server
I created an ASP.NET Core project. I want editable, recompileable, live server and these in one container.
答案1
得分: 0
Your app binds to localhost, meaning that it'll only accept connections from localhost. In a container, localhost is the container itself. So it rejects your connection attempts, as they're coming from outside the container.
To fix it, make the app bind to 0.0.0.0. Then it'll accept connections from anywhere. To change the binding, change
CMD [ "dotnet","watch","run","--urls=http://localhost:5001/"]
to
CMD [ "dotnet","watch","run","--urls=http://0.0.0.0:5001/"]
英文:
Your app binds to localhost, meaning that it'll only accept connections from localhost. In a container, localhost is the container itself. So it rejects your connection attempts, as they're coming from outside the container.
To fix it, make the app bind to 0.0.0.0. Then it'll accept connections from anywhere. To change the binding, change
CMD [ "dotnet","watch","run","--urls=http://localhost:5001/"]
to
CMD [ "dotnet","watch","run","--urls=http://0.0.0.0:5001/"]
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