feat: support for IAM Identity Center in security diff (#30009)

### Issue # (if applicable)

Closes #29835 

### Reason for this change

IAM Identity Center resources were ignored in the security diff

### Description of changes

* Adds the  IAM Identity Center resources to CDK diff
* fixes not presenting property changes when a resource is removed from the template

### Description of how you validated changes

* Added unit tests and integration tests.
* Ran the integration tests that mention cdk diff (`bin/run-suite -a cli-integ-tests -t 'cdk diff'`):
```
Test Suites: 2 skipped, 1 passed, 1 of 3 total
Tests:       90 skipped, 13 passed, 103 total
Snapshots:   0 total
Time:        312.397 s
Ran all test suites with tests matching "cdk diff": 
```

### Dependent PRs

* Before this change can be merged, this change cdklabs/awscdk-service-spec#1052 must be merged.

### Checklist
- [Y] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk-testing/cli-integ/lib/aws.ts

@@ -19,6 +19,7 @@ export class AwsClients {
   public readonly s3: AwsCaller<AWS.S3>;
   public readonly ecr: AwsCaller<AWS.ECR>;
   public readonly ecs: AwsCaller<AWS.ECS>;
+  public readonly sso: AwsCaller<AWS.SSO>;
   public readonly sns: AwsCaller<AWS.SNS>;
   public readonly iam: AwsCaller<AWS.IAM>;
   public readonly lambda: AwsCaller<AWS.Lambda>;
@@ -36,6 +37,7 @@ export class AwsClients {
     this.s3 = makeAwsCaller(AWS.S3, this.config);
     this.ecr = makeAwsCaller(AWS.ECR, this.config);
     this.ecs = makeAwsCaller(AWS.ECS, this.config);
+    this.sso = makeAwsCaller(AWS.SSO, this.config);
     this.sns = makeAwsCaller(AWS.SNS, this.config);
     this.iam = makeAwsCaller(AWS.IAM, this.config);
     this.lambda = makeAwsCaller(AWS.Lambda, this.config);

packages/@aws-cdk-testing/cli-integ/resources/cdk-apps/app/app.js

@@ -11,6 +11,7 @@ if (process.env.PACKAGE_LAYOUT_VERSION === '1') {
   var sns = require('@aws-cdk/aws-sns');
   var sqs = require('@aws-cdk/aws-sqs');
   var lambda = require('@aws-cdk/aws-lambda');
+  var sso = require('@aws-cdk/aws-sso');
   var docker = require('@aws-cdk/aws-ecr-assets');
 } else {
   var cdk = require('aws-cdk-lib');
@@ -19,6 +20,7 @@ if (process.env.PACKAGE_LAYOUT_VERSION === '1') {
     LegacyStackSynthesizer,
     aws_ec2: ec2,
     aws_ecs: ecs,
+    aws_sso: sso,
     aws_s3: s3,
     aws_ssm: ssm,
     aws_iam: iam,
@@ -68,6 +70,62 @@ class YourStack extends cdk.Stack {
   }
 }
 
+class SsoPermissionSetNoPolicy extends Stack {
+  constructor(scope, id) {
+    super(scope, id);
+
+    new sso.CfnPermissionSet(this, "permission-set-without-managed-policy", {
+      instanceArn: 'arn:aws:sso:::instance/testvalue',
+      name: 'testName',
+      permissionsBoundary: { customerManagedPolicyReference: { name: 'why', path: '/how/' }},
+     })
+  }
+}
+
+class SsoPermissionSetManagedPolicy extends Stack {
+  constructor(scope, id) {
+    super(scope, id);
+    new sso.CfnPermissionSet(this, "permission-set-with-managed-policy", {
+      managedPolicies: ['arn:aws:iam::aws:policy/administratoraccess'],
+      customerManagedPolicyReferences: [{ name: 'forSSO' }],
+      permissionsBoundary: { managedPolicyArn: 'arn:aws:iam::aws:policy/AdministratorAccess' },
+      instanceArn: 'arn:aws:sso:::instance/testvalue',
+      name: 'niceWork',
+     })
+  }
+}
+
+class SsoAssignment extends Stack {
+  constructor(scope, id) {
+    super(scope, id);
+     new sso.CfnAssignment(this, "assignment", {
+       instanceArn: 'arn:aws:sso:::instance/testvalue',
+       permissionSetArn: 'arn:aws:sso:::testvalue',
+       principalId: '11111111-2222-3333-4444-test',
+       principalType: 'USER',
+       targetId: '111111111111',
+       targetType: 'AWS_ACCOUNT'
+     });
+  }
+}
+
+class SsoInstanceAccessControlConfig extends Stack {
+  constructor(scope, id) {
+    super(scope, id);
+     new sso.CfnInstanceAccessControlAttributeConfiguration(this, 'instanceAccessControlConfig', {
+       instanceArn: 'arn:aws:sso:::instance/testvalue',
+       accessControlAttributes: [
+         { key: 'first', value: { source: ['a'] } },
+         { key: 'second', value: { source: ['b'] } },
+         { key: 'third', value: { source: ['c'] } },
+         { key: 'fourth', value: { source: ['d'] } },
+         { key: 'fifth', value: { source: ['e'] } },
+         { key: 'sixth', value: { source: ['f'] } },
+       ]
+     })
+  }
+}
+
 class ListMultipleDependentStack extends Stack {
   constructor(scope, id) {
     super(scope, id);
@@ -591,6 +649,13 @@ switch (stackSet) {
     new EcsHotswapStack(app, `${stackPrefix}-ecs-hotswap`);
     new DockerStack(app, `${stackPrefix}-docker`);
     new DockerStackWithCustomFile(app, `${stackPrefix}-docker-with-custom-file`);
+
+    // SSO stacks
+    new SsoInstanceAccessControlConfig(app, `${stackPrefix}-sso-access-control`);
+    new SsoAssignment(app, `${stackPrefix}-sso-assignment`);
+    new SsoPermissionSetManagedPolicy(app, `${stackPrefix}-sso-perm-set-with-managed-policy`);
+    new SsoPermissionSetNoPolicy(app, `${stackPrefix}-sso-perm-set-without-managed-policy`);
+
     const failed = new FailedStack(app, `${stackPrefix}-failed`)
 
     // A stack that depends on the failed stack -- used to test that '-e' does not deploy the failing stack

packages/@aws-cdk-testing/cli-integ/tests/cli-integ-tests/cli.integtest.ts

@@ -775,6 +775,158 @@ integTest('cdk diff --fail with multiple stack exits with if any of the stacks c
   await expect(fixture.cdk(['diff', '--fail', fixture.fullStackName('test-1'), fixture.fullStackName('test-2')])).rejects.toThrow('exited with error');
 }));
 
+integTest('cdk diff --security-only successfully outputs sso-permission-set-without-managed-policy information', withDefaultFixture(async (fixture) => {
+  const diff = await fixture.cdk(
+    ['diff', '--security-only', fixture.fullStackName('sso-perm-set-without-managed-policy')],
+  );
+  `┌───┬──────────────────────────────────────────┬──────────────────────────────────┬────────────────────┬───────────────────────────────────┬─────────────────────────────────┐
+   │   │ Resource                                 │ InstanceArn                      │ PermissionSet name │ PermissionsBoundary               │ CustomerManagedPolicyReferences │
+   ├───┼──────────────────────────────────────────┼──────────────────────────────────┼────────────────────┼───────────────────────────────────┼─────────────────────────────────┤
+   │ + │\${permission-set-without-managed-policy} │ arn:aws:sso:::instance/testvalue │ testName           │ CustomerManagedPolicyReference: { │                                 │
+   │   │                                          │                                  │                    │   Name: why, Path: /how/          │                                 │
+   │   │                                          │                                  │                    │ }                                 │                                 │
+`;
+  expect(diff).toContain('Resource');
+  expect(diff).toContain('permission-set-without-managed-policy');
+
+  expect(diff).toContain('InstanceArn');
+  expect(diff).toContain('arn:aws:sso:::instance/testvalue');
+
+  expect(diff).toContain('PermissionSet name');
+  expect(diff).toContain('testName');
+
+  expect(diff).toContain('PermissionsBoundary');
+  expect(diff).toContain('CustomerManagedPolicyReference: {');
+  expect(diff).toContain('Name: why, Path: /how/');
+  expect(diff).toContain('}');
+
+  expect(diff).toContain('CustomerManagedPolicyReferences');
+}));
+
+integTest('cdk diff --security-only successfully outputs sso-permission-set-with-managed-policy information', withDefaultFixture(async (fixture) => {
+  const diff = await fixture.cdk(
+    ['diff', '--security-only', fixture.fullStackName('sso-perm-set-with-managed-policy')],
+  );
+  `┌───┬──────────────────────────────────────────┬──────────────────────────────────┬────────────────────┬───────────────────────────────────────────────────────────────┬─────────────────────────────────┐
+   │   │ Resource                                 │ InstanceArn                      │ PermissionSet name │ PermissionsBoundary                                           │ CustomerManagedPolicyReferences │
+   ├───┼──────────────────────────────────────────┼──────────────────────────────────┼────────────────────┼───────────────────────────────────────────────────────────────┼─────────────────────────────────┤
+   │ + │\${permission-set-with-managed-policy}    │ arn:aws:sso:::instance/testvalue │ niceWork           │ ManagedPolicyArn: arn:aws:iam::aws:policy/AdministratorAccess │ Name: forSSO, Path:             │
+`;
+
+  expect(diff).toContain('Resource');
+  expect(diff).toContain('permission-set-with-managed-policy');
+
+  expect(diff).toContain('InstanceArn');
+  expect(diff).toContain('arn:aws:sso:::instance/testvalue');
+
+  expect(diff).toContain('PermissionSet name');
+  expect(diff).toContain('niceWork');
+
+  expect(diff).toContain('PermissionsBoundary');
+  expect(diff).toContain('ManagedPolicyArn: arn:aws:iam::aws:policy/AdministratorAccess');
+
+  expect(diff).toContain('CustomerManagedPolicyReferences');
+  expect(diff).toContain('Name: forSSO, Path:');
+}));
+
+integTest('cdk diff --security-only successfully outputs sso-assignment information', withDefaultFixture(async (fixture) => {
+  const diff = await fixture.cdk(
+    ['diff', '--security-only', fixture.fullStackName('sso-assignment')],
+  );
+  `┌───┬───────────────┬──────────────────────────────────┬─────────────────────────┬──────────────────────────────┬───────────────┬──────────────┬─────────────┐
+   │   │ Resource      │ InstanceArn                      │ PermissionSetArn        │ PrincipalId                  │ PrincipalType │ TargetId     │ TargetType  │
+   ├───┼───────────────┼──────────────────────────────────┼─────────────────────────┼──────────────────────────────┼───────────────┼──────────────┼─────────────┤
+   │ + │\${assignment} │ arn:aws:sso:::instance/testvalue │ arn:aws:sso:::testvalue │ 11111111-2222-3333-4444-test │ USER          │ 111111111111 │ AWS_ACCOUNT │
+   └───┴───────────────┴──────────────────────────────────┴─────────────────────────┴──────────────────────────────┴───────────────┴──────────────┴─────────────┘
+`;
+  expect(diff).toContain('Resource');
+  expect(diff).toContain('assignment');
+
+  expect(diff).toContain('InstanceArn');
+  expect(diff).toContain('arn:aws:sso:::instance/testvalue');
+
+  expect(diff).toContain('PermissionSetArn');
+  expect(diff).toContain('arn:aws:sso:::testvalue');
+
+  expect(diff).toContain('PrincipalId');
+  expect(diff).toContain('11111111-2222-3333-4444-test');
+
+  expect(diff).toContain('PrincipalType');
+  expect(diff).toContain('USER');
+
+  expect(diff).toContain('TargetId');
+  expect(diff).toContain('111111111111');
+
+  expect(diff).toContain('TargetType');
+  expect(diff).toContain('AWS_ACCOUNT');
+}));
+
+integTest('cdk diff --security-only successfully outputs sso-access-control information', withDefaultFixture(async (fixture) => {
+  const diff = await fixture.cdk(
+    ['diff', '--security-only', fixture.fullStackName('sso-access-control')],
+  );
+  `┌───┬────────────────────────────────┬────────────────────────┬─────────────────────────────────┐
+   │   │ Resource                       │ InstanceArn            │ AccessControlAttributes         │
+   ├───┼────────────────────────────────┼────────────────────────┼─────────────────────────────────┤
+   │ + │\${instanceAccessControlConfig} │ arn:aws:test:testvalue │ Key: first, Values: [a]         │
+   │   │                                │                        │ Key: second, Values: [b]        │
+   │   │                                │                        │ Key: third, Values: [c]         │
+   │   │                                │                        │ Key: fourth, Values: [d]        │
+   │   │                                │                        │ Key: fifth, Values: [e]         │
+   │   │                                │                        │ Key: sixth, Values: [f]         │
+   └───┴────────────────────────────────┴────────────────────────┴─────────────────────────────────┘
+`;
+  expect(diff).toContain('Resource');
+  expect(diff).toContain('instanceAccessControlConfig');
+
+  expect(diff).toContain('InstanceArn');
+  expect(diff).toContain('arn:aws:sso:::instance/testvalue');
+
+  expect(diff).toContain('AccessControlAttributes');
+  expect(diff).toContain('Key: first, Values: [a]');
+  expect(diff).toContain('Key: second, Values: [b]');
+  expect(diff).toContain('Key: third, Values: [c]');
+  expect(diff).toContain('Key: fourth, Values: [d]');
+  expect(diff).toContain('Key: fifth, Values: [e]');
+  expect(diff).toContain('Key: sixth, Values: [f]');
+}));
+
+integTest('cdk diff --security-only --fail exits when security diff for sso access control config', withDefaultFixture(async (fixture) => {
+  await expect(
+    fixture.cdk(
+      ['diff', '--security-only', '--fail', fixture.fullStackName('sso-access-control')],
+    ),
+  ).rejects
+    .toThrow('exited with error');
+}));
+
+integTest('cdk diff --security-only --fail exits when security diff for sso-perm-set-without-managed-policy', withDefaultFixture(async (fixture) => {
+  await expect(
+    fixture.cdk(
+      ['diff', '--security-only', '--fail', fixture.fullStackName('sso-perm-set-without-managed-policy')],
+    ),
+  ).rejects
+    .toThrow('exited with error');
+}));
+
+integTest('cdk diff --security-only --fail exits when security diff for sso-perm-set-with-managed-policy', withDefaultFixture(async (fixture) => {
+  await expect(
+    fixture.cdk(
+      ['diff', '--security-only', '--fail', fixture.fullStackName('sso-perm-set-with-managed-policy')],
+    ),
+  ).rejects
+    .toThrow('exited with error');
+}));
+
+integTest('cdk diff --security-only --fail exits when security diff for sso-assignment', withDefaultFixture(async (fixture) => {
+  await expect(
+    fixture.cdk(
+      ['diff', '--security-only', '--fail', fixture.fullStackName('sso-assignment')],
+    ),
+  ).rejects
+    .toThrow('exited with error');
+}));
+
 integTest('cdk diff --security-only --fail exits when security changes are present', withDefaultFixture(async (fixture) => {
   const stackName = 'iam-test';
   await expect(fixture.cdk(['diff', '--security-only', '--fail', fixture.fullStackName(stackName)])).rejects.toThrow('exited with error');

packages/@aws-cdk/cloudformation-diff/lib/diff/types.ts

@@ -128,11 +128,13 @@ export class TemplateDiff implements ITemplateDiff {
         continue;
       }
 
-      if (!resourceChange.newResourceType) {
+      if (!resourceChange.resourceType) {
+        // We use resourceChange.resourceType to loadResourceModel so that we can inspect the
+        // properties of a resource even after the resource is removed from the template.
         continue;
       }
 
-      const newTypeProps = loadResourceModel(resourceChange.newResourceType)?.properties || {};
+      const newTypeProps = loadResourceModel(resourceChange.resourceType)?.properties || {};
       for (const [propertyName, prop] of Object.entries(newTypeProps)) {
         const propScrutinyType = prop.scrutinizable || PropertyScrutinyType.None;
         if (scrutinyTypes.includes(propScrutinyType)) {

packages/@aws-cdk/cloudformation-diff/lib/format.ts

@@ -382,6 +382,19 @@ class Formatter {
       this.printSectionHeader('IAM Policy Changes');
       this.print(formatTable(this.deepSubstituteBracedLogicalIds(changes.summarizeManagedPolicies()), this.stream.columns));
     }
+
+    if (changes.ssoPermissionSets.hasChanges || changes.ssoInstanceACAConfigs.hasChanges || changes.ssoAssignments.hasChanges) {
+      this.printSectionHeader('IAM Identity Center Changes');
+      if (changes.ssoPermissionSets.hasChanges) {
+        this.print(formatTable(this.deepSubstituteBracedLogicalIds(changes.summarizeSsoPermissionSets()), this.stream.columns));
+      }
+      if (changes.ssoInstanceACAConfigs.hasChanges) {
+        this.print(formatTable(this.deepSubstituteBracedLogicalIds(changes.summarizeSsoInstanceACAConfigs()), this.stream.columns));
+      }
+      if (changes.ssoAssignments.hasChanges) {
+        this.print(formatTable(this.deepSubstituteBracedLogicalIds(changes.summarizeSsoAssignments()), this.stream.columns));
+      }
+    }
   }
 
   public formatSecurityGroupChanges(changes: SecurityGroupChanges) {