Lets Encrypt is a certificate authority (CA) that provides HTTPS (SSL/TLS) certificates for free. This sample shows how to add Lets Encrypt for TLS termination in YARP by integrating with LettuceEncrypt. It allows to set up TLS between the client and YARP with minimal configuration.

The sample includes the following parts:

• Program.cs

  It calls IServiceCollection.AddLettuceEncrypt in the ConfigureServices method.

• appsettings.json

  Sets up the required options for LettuceEncrypt including:

  • "DomainNames" - at least one domain name is required
  • "EmailAddress" - email address must be specified to register with the certificate authority