Blazor WebApp发布到Docker+Nginx后出现404错误及端口异常排查

此前使用.NET7搭建的Blazor WASM搭配Nginx运行正常，但升级到.NET8后出现问题。为测试新建了模板Blazor WebApp，发布后仍出现404 Not Found错误。

Dockerfile配置 #

FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
WORKDIR /src
COPY ["BlazorStandAlone8.csproj", "./"]
RUN dotnet restore "BlazorStandAlone8.csproj"
COPY . .
WORKDIR "/src/"
RUN dotnet build "BlazorStandAlone8.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "BlazorStandAlone8.csproj" -c Release -o /app/publish


FROM nginx:alpine
WORKDIR /user/share/nginx/html
COPY --from=publish /app/publish/wwwroot .
COPY /nginx.conf /etc/nginx/nginx.conf

nginx.conf配置 #

events { }
http {
   include mime.types;
   types {
      application/wasm;
    }
  server {
     listen 80;
     index index.html;
     location / {
        root /user/share/nginx/html;
        try_files $uri $uri/ /index.html =404;
     }
  }
}

使用命令docker run -p 5000:80 blazorsa8test运行容器，尝试调整端口、Dockerfile配置，检查容器内文件均无异常。

更新：已排除Blazor和Nginx问题，发现5000端口存在异常，更换为5005端口后运行正常，怀疑本地端口冲突，正在进一步排查。

内容的提问来源于stack exchange，提问作者Nikita Belov