AddAcmeCertificateManager.cs

// Register a certitificate manager, supplying methods to store and retreive certificates and acme challenge responses
services.AddAcmeCertificateManager(options => {
     options.DomainNames = httpsDomains;
     options.GetChallengeResponse = async (challenge) =>
     {
         var cacheGrain = GrainClient.GrainFactory.GetGrain<ICacheGrain<string>>(challenge);
         var response = await cacheGrain.Get();
         return response.Value;
     };
     options.SetChallengeResponse = async (challenge, response) =>
     {
         var cacheGrain = GrainClient.GrainFactory.GetGrain<ICacheGrain<string>>(challenge);
         await cacheGrain.Set(new Immutable<string>(response), TimeSpan.FromHours(2));
     };
     options.StoreCertificate = async (string domainName, byte[] certData) => {
         var certGrain = GrainClient.GrainFactory.GetGrain<ICertGrain>(domainName);
         await certGrain.UpdateCertificate(certData);
     };
     options.RetrieveCertificate = async (domainName) => {
         var certGrain = GrainClient.GrainFactory.GetGrain<ICertGrain>(domainName);
         var certData = await certGrain.GetCertificate();
         return certData.Value;
     };
 });