@@ -44,7 +44,7 @@ public async Task Setup()
             // Connection to the default connection string failed, use Docker to run PostgreSQL
             _postgreSqlContainer = new PostgreSqlBuilder(ContainerImage).WithName(ContainerName).Build();
             await _postgreSqlContainer.StartAsync();
-            await _postgreSqlContainer.EnableSslAsync();
+            await _postgreSqlContainer.ConfigureAsync();
 
             TestUtil.ConnectionString = _postgreSqlContainer.GetConnectionString();
             CheckConnection();
 
@@ -4,13 +4,22 @@
 using System.Text;
 using System.Threading.Tasks;
 using DotNet.Testcontainers.Configurations;
+using Npgsql.Tests.Replication;
 using Testcontainers.PostgreSql;
 
 namespace Npgsql.Tests.Support;
 
 static class PostgreSqlContainerExtensions
 {
-    public static async Task EnableSslAsync(this PostgreSqlContainer container)
+    /// <summary>
+    /// Configures the container for maximum test compatibility.
+    /// <list type="bullet">
+    /// <item>Enable SSL for <see cref="SecurityTests"/></item>
+    /// <item>Configure wal_level to <c>logical</c> and max_wal_senders to <c>50</c> for <see cref="SafeReplicationTestBase{T}"/></item>
+    /// <item>Configure max_prepared_transactions to <c>100</c> for <see cref="DistributedTransactionTests"/></item>
+    /// </list>
+    /// </summary>
+    public static async Task ConfigureAsync(this PostgreSqlContainer container)
     {
         var now = DateTimeOffset.UtcNow;
         const UnixFileModes certMode = UnixFileModes.UserRead | UnixFileModes.UserWrite | UnixFileModes.GroupRead | UnixFileModes.OtherRead;
@@ -21,6 +30,9 @@ public static async Task EnableSslAsync(this PostgreSqlContainer container)
                                      ALTER SYSTEM SET ssl = 'on';
                                      ALTER SYSTEM SET ssl_cert_file = '{sslCertPath}';
                                      ALTER SYSTEM SET ssl_key_file = '{sslKeyPath}';
+                                     ALTER SYSTEM SET wal_level = 'logical';
+                                     ALTER SYSTEM SET max_wal_senders = '50';
+                                     ALTER SYSTEM SET max_prepared_transactions = '100';
                                      """;
 
         var uid = uint.Parse((await container.ExecAsync(["id", "-u", "postgres"])).Stdout);