Set Virtual Path to ASP NET Core MVC Application behind nginx reverse proxy
Sounds like your reverse proxy works in a way that maps /mvcapp to / as below:
location /mvcapp { proxy_pass http://localhost:6009/; # assume you expose the 6009 port ...}If that's the case, that's because the proxy cuts off the /mvcapp prefix. And your MVC app doesn't realize the virtual app path is /mvcapp. To fix that, add a middleware to set the PathBase explicitly:
public void Configure(IApplicationBuilder app, IWebHostEnvironment env){ // add this middleware as the first one app.Use((context, next)=> { context.Request.PathBase = Environment.GetEnvironmentVariable("ASPNETCORE_APPL_PATH"); return next(); }); // ... other middlewares}And pass the ASPNETCORE_APPL_PATH environment when starting the docker. For example, you can pass the environment in the command:
## assume you want to map the port 6009 to 80, ## and the image name is nginxtocoredocker run -p 6009:80 -e ASPNETCORE_APPL_PATH='/mvcapp' nginxtocore