appsettings.json

{
  "Kestrel": {
    "Endpoints": {
      "Http": {
        "Url": "http://*:80"
      },
      "Https": {
        "Url": "https://*:443"
      }
    }
  },
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Information",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "ReverseProxy": {
    "Routes": {
      "route1": {
        "ClusterId": "cluster1",
        "Match": {
          "Path": "{**catch-all}"
        }
      }
    },
    "Clusters": {
      "cluster1": {
        "Destinations": {
          "destination1": {
            "Address": "https://example.com/"
          }
        }
      }
    }
  },
  "LettuceEncrypt": {
    // Set this to automatically accept the terms of service of your certificate authority.
    // If you don't set this in config, you will need to press "y" whenever the application starts
    "AcceptTermsOfService": true,

    // You must specify at least one domain name
    "DomainNames": [ "example.com" ],

    // You must specify an email address to register with the certificate authority
    "EmailAddress": "it-admin@example.com"
  }
}