Add WithPassword method to MySQL hosting extensions (#11007)

* Initial plan

* Add WithPassword method to MySQL hosting extensions

Co-authored-by: davidfowl <95136+davidfowl@users.noreply.github.com>

* Update src/Aspire.Hosting.MySql/MySqlBuilderExtensions.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update src/Aspire.Hosting.MySql/MySqlServerResource.cs

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: davidfowl <95136+davidfowl@users.noreply.github.com>
Co-authored-by: David Fowler <davidfowl@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Eric Erhardt <eric.erhardt@microsoft.com>

Author: 4 people

src/Aspire.Hosting.MySql/MySqlBuilderExtensions.cs

@@ -188,6 +188,21 @@ public static IResourceBuilder<MySqlDatabaseResource> WithCreationScript(this IR
         return builder;
     }
 
+    /// <summary>
+    /// Configures the password that the MySQL resource uses.
+    /// </summary>
+    /// <param name="builder">The resource builder.</param>
+    /// <param name="password">The parameter used to provide the password for the MySQL resource.</param>
+    /// <returns>The <see cref="IResourceBuilder{T}"/>.</returns>
+    public static IResourceBuilder<MySqlServerResource> WithPassword(this IResourceBuilder<MySqlServerResource> builder, IResourceBuilder<ParameterResource> password)
+    {
+        ArgumentNullException.ThrowIfNull(builder);
+        ArgumentNullException.ThrowIfNull(password);
+
+        builder.Resource.PasswordParameter = password.Resource;
+        return builder;
+    }
+
     /// <summary>
     /// Adds a phpMyAdmin administration and development platform for MySql to the application model.
     /// </summary>

src/Aspire.Hosting.MySql/MySqlServerResource.cs

@@ -32,9 +32,9 @@ public MySqlServerResource(string name, ParameterResource password) : base(name)
     public EndpointReference PrimaryEndpoint { get; }
 
     /// <summary>
-    /// Gets the parameter that contains the MySQL server password.
+    /// Gets or sets the parameter that contains the MySQL server password.
     /// </summary>
-    public ParameterResource PasswordParameter { get; }
+    public ParameterResource PasswordParameter { get; set; }
 
     /// <summary>
     /// Gets the connection string expression for the MySQL server.

tests/Aspire.Hosting.MySql.Tests/AddMySqlTests.cs

@@ -347,4 +347,22 @@ public void CanAddDatabasesWithTheSameNameOnMultipleServers()
         Assert.Equal("{mysql1.connectionString};Database=imports", db1.Resource.ConnectionStringExpression.ValueExpression);
         Assert.Equal("{mysql2.connectionString};Database=imports", db2.Resource.ConnectionStringExpression.ValueExpression);
     }
+
+    [Fact]
+    public async Task VerifyMySqlServerResourceWithPassword()
+    {
+        var builder = DistributedApplication.CreateBuilder();
+        var password = "p@ssw0rd1";
+        var pass = builder.AddParameter("pass", password);
+        var mysql = builder.AddMySql("mysql")
+                               .WithPassword(pass)
+                               .WithEndpoint("tcp", e => e.AllocatedEndpoint = new AllocatedEndpoint(e, "localhost", 2000));
+
+        using var app = builder.Build();
+
+        var appModel = app.Services.GetRequiredService<DistributedApplicationModel>();
+        var connectionStringResource = Assert.Single(appModel.Resources.OfType<MySqlServerResource>());
+        var connectionString = await connectionStringResource.ConnectionStringExpression.GetValueAsync(default);
+        Assert.Equal("Server=localhost;Port=2000;User ID=root;Password=p@ssw0rd1", connectionString);
+    }
 }

tests/Aspire.Hosting.MySql.Tests/MySqlPublicApiTests.cs

@@ -292,4 +292,29 @@ public void CtorPhpMyAdminContainerResourceShouldThrowWhenNameIsNullOrEmpty(bool
            : Assert.Throws<ArgumentException>(action);
         Assert.Equal(nameof(name), exception.ParamName);
     }
+
+    [Fact]
+    public void WithPasswordShouldThrowWhenBuilderIsNull()
+    {
+        IResourceBuilder<MySqlServerResource> builder = null!;
+        var password = TestDistributedApplicationBuilder.Create().AddParameter("password");
+
+        var action = () => builder.WithPassword(password);
+
+        var exception = Assert.Throws<ArgumentNullException>(action);
+        Assert.Equal(nameof(builder), exception.ParamName);
+    }
+
+    [Fact]
+    public void WithPasswordShouldThrowWhenPasswordIsNull()
+    {
+        var builder = TestDistributedApplicationBuilder.Create()
+            .AddMySql("MySql");
+        IResourceBuilder<ParameterResource> password = null!;
+
+        var action = () => builder.WithPassword(password);
+
+        var exception = Assert.Throws<ArgumentNullException>(action);
+        Assert.Equal(nameof(password), exception.ParamName);
+    }
 }