ASP.Net Core 2.2 Kubernetes Ingress: not found static content for custom path

Follow these steps to run your code:

1. ingress: remove URL-rewriting from ingress.yml

apiVersion: extensions/v1beta1kind: Ingress metadata:  name: ingress   namespace: default   annotations:    kubernetes.io/ingress.class: "nginx"     nginx.ingress.kubernetes.io/ssl-redirect: "false"   labels:     app: ingress spec:  rules:      - host:       http:           paths:          - path: /apistarter # <---            backend:              serviceName: svc-aspnetapistarter              servicePort: 5000

2. deployment: pass environment variable with path base in ingress.yml

apiVersion: apps/v1kind: Deployment# ..spec:  # ..  template:    # ..    spec:      # ..      containers:        - name: test01          image: test.io/test:dev          # ...          env:            # define custom Path Base (it should be the same as 'path' in Ingress-service)            - name: API_PATH_BASE # <---              value: "apistarter"

3. program: enable loading environment params in Program.cs

var builder = new WebHostBuilder()    .UseContentRoot(Directory.GetCurrentDirectory())    // ..    .ConfigureAppConfiguration((hostingContext, config) =>    {        // ..          config.AddEnvironmentVariables(); // <---        // ..    })    // ..

4. startup: apply UsePathBaseMiddleware in Startup.cs

public class Startup{    public Startup(IConfiguration configuration)    {        _configuration = configuration;    }    private readonly IConfiguration _configuration;    public void Configure(IApplicationBuilder app, IHostingEnvironment env)    {        var pathBase = _configuration["API_PATH_BASE"]; // <---        if (!string.IsNullOrWhiteSpace(pathBase))        {            app.UsePathBase($"/{pathBase.TrimStart('/')}");        }        app.UseStaticFiles(); // <-- StaticFilesMiddleware must follow UsePathBaseMiddleware        // ..        app.UseMvc();    }    // ..}