Add new redis connection getting data from environment variable

src/Services/Basket/Basket.API/Model/RedisBasketRepository.cs

@@ -4,7 +4,6 @@ using Newtonsoft.Json;
 using StackExchange.Redis;
 using System.Collections.Generic;
 using System.Linq;
-using System.Net;
 using System.Threading.Tasks;
 
 namespace Microsoft.eShopOnContainers.Services.Basket.API.Model
@@ -16,12 +15,10 @@ namespace Microsoft.eShopOnContainers.Services.Basket.API.Model
 
         private ConnectionMultiplexer _redis;
 
-
         public RedisBasketRepository(IOptionsSnapshot<BasketSettings> options, ILoggerFactory loggerFactory)
         {
             _settings = options.Value;
             _logger = loggerFactory.CreateLogger<RedisBasketRepository>();
-
         }
 
         public async Task<bool> DeleteBasketAsync(string id)
@@ -93,21 +90,12 @@ namespace Microsoft.eShopOnContainers.Services.Basket.API.Model
         }
 
         private async Task ConnectToRedisAsync()
-        {
-            // TODO: Need to make this more robust. ConnectionMultiplexer.ConnectAsync doesn't like domain names or IPv6 addresses.
-            if (IPAddress.TryParse(_settings.ConnectionString, out var ip))
-            {
-                _redis = await ConnectionMultiplexer.ConnectAsync(ip.ToString());
-                _logger.LogInformation($"Connecting to database at {_settings.ConnectionString}");
-            }
-            else
-            {
-                // workaround for https://github.com/StackExchange/StackExchange.Redis/issues/410
-                var ips = await Dns.GetHostAddressesAsync(_settings.ConnectionString);
-                _logger.LogInformation($"Connecting to database {_settings.ConnectionString} at IP {ips.First().ToString()}");
-                _redis = await ConnectionMultiplexer.ConnectAsync(ips.First().ToString());
-            }
+        {  
+            var configuration = ConfigurationOptions.Parse(_settings.ConnectionString, true);
+            configuration.ResolveDns = true;     
+            
+            _logger.LogInformation($"Connecting to database {configuration.SslHost}.");
+            _redis = await ConnectionMultiplexer.ConnectAsync(configuration);
         }
-    
     }
 }

src/Services/Basket/Basket.API/Startup.cs

@@ -16,11 +16,8 @@ using Microsoft.Extensions.HealthChecks;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using RabbitMQ.Client;
-using StackExchange.Redis;
-using System.Linq;
-using System.Net;
 using System.Threading.Tasks;
-using System;
+using StackExchange.Redis;
 
 namespace Microsoft.eShopOnContainers.Services.Basket.API
 {
@@ -64,12 +61,12 @@ namespace Microsoft.eShopOnContainers.Services.Basket.API
             services.AddSingleton<ConnectionMultiplexer>(sp =>
             {
                 var settings = sp.GetRequiredService<IOptions<BasketSettings>>().Value;
-                var ips = Dns.GetHostAddressesAsync(settings.ConnectionString).Result;
+                var configuration = ConfigurationOptions.Parse(settings.ConnectionString, true);
+                configuration.ResolveDns = true;
 
-                return ConnectionMultiplexer.Connect(ips.First().ToString());
+                return ConnectionMultiplexer.Connect(configuration);
             });
 
-
             services.AddSingleton<IRabbitMQPersistentConnection>(sp =>
             {
                 var settings = sp.GetRequiredService<IOptions<BasketSettings>>().Value;