Read region value for non default profiles

.autover/changes/ebd7f49a-72cd-4c5b-83f4-2790a2560e94.json

@@ -0,0 +1,11 @@
+{
+  "Projects": [
+    {
+      "Name": "AWS.Deploy.CLI",
+      "Type": "Minor",
+      "ChangelogMessages": [
+        "Read region value for non default profiles"
+      ]
+    }
+  ]
+}

src/AWS.Deploy.CLI/AWSCredentialsFactory.cs

@@ -0,0 +1,17 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime;
+
+namespace AWS.Deploy.CLI
+{
+    /// <inheritdoc />
+    public class AWSCredentialsFactory : IAWSCredentialsFactory
+    {
+        /// <inheritdoc />
+        public AWSCredentials Create()
+        {
+            return FallbackCredentialsFactory.GetCredentials();
+        }
+    }
+}

src/AWS.Deploy.CLI/AWSUtilities.cs

@@ -6,7 +6,6 @@
 using System.Linq;
 using System.Threading.Tasks;
 using Amazon.Runtime;
-using Amazon.Runtime.CredentialManagement;
 using AWS.Deploy.CLI.Utilities;
 using AWS.Deploy.Common;
 using AWS.Deploy.Common.IO;
@@ -17,7 +16,7 @@ namespace AWS.Deploy.CLI
 {
     public interface IAWSUtilities
     {
-        Task<AWSCredentials> ResolveAWSCredentials(string? profileName);
+        Task<Tuple<AWSCredentials, string?>> ResolveAWSCredentials(string? profileName);
         string ResolveAWSRegion(string? region, string? lastRegionUsed = null);
     }
 
@@ -28,35 +27,54 @@ public class AWSUtilities : IAWSUtilities
         private readonly IDirectoryManager _directoryManager;
         private readonly IOptionSettingHandler _optionSettingHandler;
         private readonly IServiceProvider _serviceProvider;
+        private readonly ICredentialProfileStoreChainFactory _credentialChainFactory;
+        private readonly ISharedCredentialsFileFactory _sharedCredentialsFileFactory;
+        private readonly IAWSCredentialsFactory _awsCredentialsFactory;
 
         public AWSUtilities(
             IServiceProvider serviceProvider,
             IToolInteractiveService toolInteractiveService,
             IConsoleUtilities consoleUtilities,
             IDirectoryManager directoryManager,
-            IOptionSettingHandler optionSettingHandler)
+            IOptionSettingHandler optionSettingHandler,
+            ICredentialProfileStoreChainFactory credentialChainFactory,
+            ISharedCredentialsFileFactory sharedCredentialsFileFactory,
+            IAWSCredentialsFactory awsCredentialsFactory)
         {
             _serviceProvider = serviceProvider;
             _toolInteractiveService = toolInteractiveService;
             _consoleUtilities = consoleUtilities;
             _directoryManager = directoryManager;
             _optionSettingHandler = optionSettingHandler;
+            _credentialChainFactory = credentialChainFactory;
+            _sharedCredentialsFileFactory = sharedCredentialsFileFactory;
+            _awsCredentialsFactory = awsCredentialsFactory;
         }
 
-        public async Task<AWSCredentials> ResolveAWSCredentials(string? profileName)
+
+        /// <summary>
+        /// At a high level there are 2 possible return values for this function:
+        /// 1. <Credentials, regionName> In this case, both the credentials and region were able to be read from the profile.
+        /// 2. <Credentials, null>: In this case, the region was not able to be read from the profile, so we return null for it. The null case will be handled later on by <see cref="ResolveAWSRegion">.
+        /// </summary>
+        public async Task<Tuple<AWSCredentials, string?>> ResolveAWSCredentials(string? profileName)
         {
-            async Task<AWSCredentials> Resolve()
+            async Task<Tuple<AWSCredentials, string?>> Resolve()
             {
-                var chain = new CredentialProfileStoreChain();
+                var chain = _credentialChainFactory.Create();
 
+                // Use provided profile to read credentials
                 if (!string.IsNullOrEmpty(profileName))
                 {
                     if (chain.TryGetAWSCredentials(profileName, out var profileCredentials) &&
                     // Skip checking CanLoadCredentials for AssumeRoleAWSCredentials because it might require an MFA token and the callback hasn't been setup yet.
                     (profileCredentials is AssumeRoleAWSCredentials || await CanLoadCredentials(profileCredentials)))
                     {
                         _toolInteractiveService.WriteLine($"Configuring AWS Credentials from Profile {profileName}.");
-                        return profileCredentials;
+                        chain.TryGetProfile(profileName, out var profile);
+                        // Return the credentials since they must be found at this point.
+                        // For region, we try to read it from the profile. If it's not found in the profile, then return null and region selection will be handled later on by ResolveAWSRegion.
+                        return Tuple.Create<AWSCredentials, string?>(profileCredentials, profile.Region?.SystemName);
                     }
                     else
                     {
@@ -65,14 +83,17 @@ async Task<AWSCredentials> Resolve()
                     }
                 }
 
+                // Use default credentials
                 try
                 {
-                    var fallbackCredentials = FallbackCredentialsFactory.GetCredentials();
+                    var fallbackCredentials = _awsCredentialsFactory.Create();
 
                     if (await CanLoadCredentials(fallbackCredentials))
                     {
+                        // Always return the credentials since they must be found at this point.
+                        // For region, we return null here, since it will read from default region in ResolveAWSRegion
                         _toolInteractiveService.WriteLine("Configuring AWS Credentials using AWS SDK credential search.");
-                        return fallbackCredentials;
+                        return Tuple.Create<AWSCredentials, string?>(fallbackCredentials, null);
                     }
                 }
                 catch (AmazonServiceException ex)
@@ -82,7 +103,8 @@ async Task<AWSCredentials> Resolve()
                     _toolInteractiveService.WriteDebugLine(ex.PrettyPrint());
                 }
 
-                var sharedCredentials = new SharedCredentialsFile();
+                // Use Shared Credentials
+                var sharedCredentials = _sharedCredentialsFileFactory.Create();
                 if (sharedCredentials.ListProfileNames().Count == 0)
                 {
                     throw new NoAWSCredentialsFoundException(DeployToolErrorCode.UnableToResolveAWSCredentials, "Unable to resolve AWS credentials to access AWS.");
@@ -93,21 +115,24 @@ async Task<AWSCredentials> Resolve()
                 if (chain.TryGetAWSCredentials(selectedProfileName, out var selectedProfileCredentials) &&
                     (await CanLoadCredentials(selectedProfileCredentials)))
                 {
-                    return selectedProfileCredentials;
+                    // Return the credentials since they must be found at this point.
+                    // For region, we try to read it from the profile. If it's not found in the profile, then return null and region selection will be handled later on by ResolveAWSRegion.
+                    chain.TryGetProfile(selectedProfileName, out var profile);
+                    return Tuple.Create<AWSCredentials, string?>(selectedProfileCredentials, profile.Region?.SystemName);
                 }
 
                 throw new NoAWSCredentialsFoundException(DeployToolErrorCode.UnableToCreateAWSCredentials, $"Unable to create AWS credentials for profile {selectedProfileName}.");
             }
 
-            var credentials = await Resolve();
+            var credentialsAndRegion = await Resolve();
 
-            if (credentials is AssumeRoleAWSCredentials assumeRoleAWSCredentials)
+            if (credentialsAndRegion.Item1 is AssumeRoleAWSCredentials assumeRoleAWSCredentials)
             {
                 var assumeOptions = assumeRoleAWSCredentials.Options;
                 assumeOptions.MfaTokenCodeCallback = ActivatorUtilities.CreateInstance<AssumeRoleMfaTokenCodeCallback>(_serviceProvider, assumeOptions).Execute;
             }
 
-            return credentials;
+            return credentialsAndRegion;
         }
 
         private async Task<bool> CanLoadCredentials(AWSCredentials credentials)

src/AWS.Deploy.CLI/Commands/CommandFactory.cs

@@ -209,8 +209,8 @@ private Command BuildDeployCommand()
                         deploymentSettings = await _deploymentSettingsHandler.ReadSettings(applyPath);
                     }
 
-                    var awsCredentials = await _awsUtilities.ResolveAWSCredentials(input.Profile ?? deploymentSettings?.AWSProfile);
-                    var awsRegion = _awsUtilities.ResolveAWSRegion(input.Region ?? deploymentSettings?.AWSRegion);
+                    var (awsCredentials, regionFromProfile) = await _awsUtilities.ResolveAWSCredentials(input.Profile ?? deploymentSettings?.AWSProfile);
+                    var awsRegion = _awsUtilities.ResolveAWSRegion(input.Region ?? deploymentSettings?.AWSRegion ?? regionFromProfile);
 
                     _commandLineWrapper.RegisterAWSContext(awsCredentials, awsRegion);
                     _awsClientFactory.RegisterAWSContext(awsCredentials, awsRegion);
@@ -318,8 +318,8 @@ private Command BuildDeleteCommand()
                     _toolInteractiveService.Diagnostics = input.Diagnostics;
                     _toolInteractiveService.DisableInteractive = input.Silent;
 
-                    var awsCredentials = await _awsUtilities.ResolveAWSCredentials(input.Profile);
-                    var awsRegion = _awsUtilities.ResolveAWSRegion(input.Region);
+                    var (awsCredentials, regionFromProfile) = await _awsUtilities.ResolveAWSCredentials(input.Profile);
+                    var awsRegion = _awsUtilities.ResolveAWSRegion(input.Region ?? regionFromProfile);
 
                     _awsClientFactory.ConfigureAWSOptions(awsOption =>
                     {
@@ -401,8 +401,8 @@ private Command BuildListCommand()
                 {
                     _toolInteractiveService.Diagnostics = input.Diagnostics;
 
-                    var awsCredentials = await _awsUtilities.ResolveAWSCredentials(input.Profile);
-                    var awsRegion = _awsUtilities.ResolveAWSRegion(input.Region);
+                    var (awsCredentials, regionFromProfile) = await _awsUtilities.ResolveAWSCredentials(input.Profile);
+                    var awsRegion = _awsUtilities.ResolveAWSRegion(input.Region ?? regionFromProfile);
 
                     _awsClientFactory.ConfigureAWSOptions(awsOptions =>
                     {

src/AWS.Deploy.CLI/CredentialProfileStoreChainFactory.cs

@@ -0,0 +1,17 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime.CredentialManagement;
+
+namespace AWS.Deploy.CLI
+{
+    /// <inheritdoc />
+    public class CredentialProfileStoreChainFactory : ICredentialProfileStoreChainFactory
+    {
+        /// <inheritdoc />
+        public CredentialProfileStoreChain Create()
+        {
+            return new CredentialProfileStoreChain();
+        }
+    }
+}

src/AWS.Deploy.CLI/Extensions/CustomServiceCollectionExtension.cs

@@ -71,6 +71,9 @@ public static void AddCustomServices(this IServiceCollection serviceCollection,
             serviceCollection.TryAdd(new ServiceDescriptor(typeof(IEnvironmentVariableManager), typeof(EnvironmentVariableManager), lifetime));
             serviceCollection.TryAdd(new ServiceDescriptor(typeof(IDeployToolWorkspaceMetadata), typeof(DeployToolWorkspaceMetadata), lifetime));
             serviceCollection.TryAdd(new ServiceDescriptor(typeof(IDeploymentSettingsHandler), typeof(DeploymentSettingsHandler), lifetime));
+            serviceCollection.TryAdd(new ServiceDescriptor(typeof(ICredentialProfileStoreChainFactory), typeof(CredentialProfileStoreChainFactory), lifetime));
+            serviceCollection.TryAdd(new ServiceDescriptor(typeof(ISharedCredentialsFileFactory), typeof(SharedCredentialsFileFactory), lifetime));
+            serviceCollection.TryAdd(new ServiceDescriptor(typeof(IAWSCredentialsFactory), typeof(AWSCredentialsFactory), lifetime));
 
             var packageJsonTemplate = typeof(PackageJsonGenerator).Assembly.ReadEmbeddedFile(PackageJsonGenerator.TemplateIdentifier);
             serviceCollection.TryAdd(new ServiceDescriptor(typeof(IPackageJsonGenerator), (serviceProvider) => new PackageJsonGenerator(packageJsonTemplate), lifetime));

src/AWS.Deploy.CLI/IAWSCredentialsFactory.cs

@@ -0,0 +1,18 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime;
+
+namespace AWS.Deploy.CLI
+{
+    /// <summary>
+    /// Represents a factory for creating <see cref="AWSCredentials">
+    /// </summary>
+    public interface IAWSCredentialsFactory
+    {
+        /// <summary>
+        /// Creates <see cref="AWSCredentials">
+        /// </summary>
+        AWSCredentials Create();
+    }
+}

src/AWS.Deploy.CLI/ICredentialProfileStoreChainFactory.cs

@@ -0,0 +1,18 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime.CredentialManagement;
+
+namespace AWS.Deploy.CLI
+{
+    /// <summary>
+    /// Represents a factory for creating <see cref="CredentialProfileStoreChain">
+    /// </summary>
+    public interface ICredentialProfileStoreChainFactory
+    {
+        /// <summary>
+        /// Creates a <see cref="CredentialProfileStoreChain">
+        /// </summary>
+        CredentialProfileStoreChain Create();
+    }
+}

src/AWS.Deploy.CLI/ISharedCredentialsFileFactory.cs

@@ -0,0 +1,18 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime.CredentialManagement;
+
+namespace AWS.Deploy.CLI
+{
+    /// <summary>
+    /// Represents a factory for creating <see cref="SharedCredentialsFile">
+    /// </summary>
+    public interface ISharedCredentialsFileFactory
+    {
+        /// <summary>
+        /// Creates <see cref="SharedCredentialsFile">
+        /// </summary>
+        SharedCredentialsFile Create();
+    }
+}

src/AWS.Deploy.CLI/SharedCredentialsFileFactory.cs

@@ -0,0 +1,17 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime.CredentialManagement;
+
+namespace AWS.Deploy.CLI
+{
+    /// <inheritdoc />
+    public class SharedCredentialsFileFactory : ISharedCredentialsFileFactory
+    {
+        /// <inheritdoc />
+        public SharedCredentialsFile Create()
+        {
+            return new SharedCredentialsFile();
+        }
+    }
+}

test/AWS.Deploy.CLI.UnitTests/AWSCredentialsFactoryTests.cs

@@ -0,0 +1,25 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+using Amazon.Runtime;
+using Xunit;
+
+namespace AWS.Deploy.CLI.UnitTests
+{
+    public class AWSCredentialsFactoryTests
+    {
+        [Fact]
+        public void Create_ReturnsAWSCredentialsInstance()
+        {
+            // Arrange
+            var factory = new AWSCredentialsFactory();
+
+            // Act
+            var result = factory.Create();
+
+            // Assert
+            Assert.NotNull(result);
+            Assert.IsAssignableFrom<AWSCredentials>(result);
+        }
+    }
+}