feat(cli-lib): support bootstrap command (#26205)

The first iteration of [@aws-cdk/cli-lib-alpha](https://docs.aws.amazon.com/cdk/api/v2/docs/cli-lib-alpha-readme.html) doesn't support the bootstrap command that is mandatory to deploy a new app via CDK.

This PR introduces the bootstrap command for the CLI.

Related: #15851 

----

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

Author: AntonioAngelino

Diff for: packages/@aws-cdk/cli-lib-alpha/README.md

@@ -34,6 +34,7 @@ Currently the package includes implementations for:
 
 - `cdk deploy`
 - `cdk synth`
+- `cdk bootstrap`
 - `cdk destroy`
 - `cdk list`
 
@@ -95,6 +96,13 @@ cli.synth({
 });
 ```
 
+### bootstrap
+
+```ts
+// await this asynchronous method call using a language feature
+cli.bootstrap();
+```
+
 ### deploy
 
 ```ts

Diff for: packages/@aws-cdk/cli-lib-alpha/lib/cli.ts

@@ -2,7 +2,7 @@
 import { exec as runCli } from 'aws-cdk/lib';
 // eslint-disable-next-line import/no-extraneous-dependencies
 import { createAssembly, prepareContext, prepareDefaultEnvironment } from 'aws-cdk/lib/api/cxapp/exec';
-import { SharedOptions, DeployOptions, DestroyOptions, SynthOptions, ListOptions, StackActivityProgress } from './commands';
+import { SharedOptions, DeployOptions, DestroyOptions, BootstrapOptions, SynthOptions, ListOptions, StackActivityProgress } from './commands';
 
 /**
  * AWS CDK CLI operations
@@ -18,6 +18,11 @@ export interface IAwsCdkCli {
    */
   synth(options?: SynthOptions): Promise<void>;
 
+  /**
+   * cdk bootstrap
+   */
+  bootstrap(options?: BootstrapOptions): Promise<void>;
+
   /**
    * cdk deploy
    */
@@ -163,6 +168,34 @@ export class AwsCdkCli implements IAwsCdkCli {
     await this.exec(['synth', ...synthCommandArgs]);
   }
 
+  /**
+   * cdk bootstrap
+   */
+  public async bootstrap(options: BootstrapOptions = {}) {
+    const bootstrapCommandArgs: string[] = [
+      ...renderBooleanArg('force', options.force),
+      ...renderBooleanArg('show-template', options.showTemplate),
+      ...renderBooleanArg('terminationProtection', options.terminationProtection),
+      ...renderBooleanArg('example-permissions-boundary', options.examplePermissionsBoundary),
+      ...renderBooleanArg('terminationProtection', options.usePreviousParameters),
+      ...renderBooleanArg('execute', options.execute),
+      ...options.toolkitStackName ? ['--toolkit-stack-name', options.toolkitStackName] : [],
+      ...options.bootstrapBucketName ? ['--bootstrap-bucket-name', options.bootstrapBucketName] : [],
+      ...options.cfnExecutionPolicy ? ['--cloudformation-execution-policies', options.cfnExecutionPolicy] : [],
+      ...options.template ? ['--template', options.template] : [],
+      ...options.customPermissionsBoundary ? ['--custom-permissions-boundary', options.customPermissionsBoundary] : [],
+      ...options.qualifier ? ['--qualifier', options.qualifier] : [],
+      ...options.trust ? ['--qualifier', options.trust] : [],
+      ...options.trustForLookup ? ['--qualifier', options.trustForLookup] : [],
+      ...options.bootstrapKmsKeyId ? ['--bootstrap-kms-key-id', options.bootstrapKmsKeyId] : [],
+      ...options.bootstrapCustomerKey ? ['--bootstrap-customer-key', options.bootstrapCustomerKey] : [],
+      ...options.publicAccessBlockConfiguration ? ['--public-access-block-configuration', options.publicAccessBlockConfiguration] : [],
+      ...this.createDefaultArguments(options),
+    ];
+
+    await this.exec(['bootstrap', ...bootstrapCommandArgs]);
+  }
+
   /**
    * cdk deploy
    */

Diff for: packages/@aws-cdk/cli-lib-alpha/lib/commands/bootstrap.ts

@@ -0,0 +1,123 @@
+import { SharedOptions } from './common';
+
+/**
+ * Options to use with cdk bootstrap
+ */
+export interface BootstrapOptions extends SharedOptions {
+
+  /**
+   * The name of the CDK toolkit stack to create
+   */
+  readonly toolkitStackName?: string;
+
+  /**
+   * The name of the CDK toolkit bucket; bucket will be created and
+   * must not exist
+   * @default - auto-generated CloudFormation name
+   */
+  readonly bootstrapBucketName?: string;
+
+  /**
+   * Always bootstrap even if it would downgrade template version
+   * @default false
+   */
+  readonly force?: boolean;
+
+  /**
+   * The Managed Policy ARNs that should be attached to the
+   * role performing deployments into this environment (may be repeated, modern bootstrapping only)
+   * @default - none
+   */
+  readonly cfnExecutionPolicy?: string;
+
+  /**
+   * Instead of actual bootstrapping, print the current
+   * CLI\'s bootstrapping template to stdout for customization
+   * @default false
+   */
+  readonly showTemplate?: boolean;
+
+  /**
+   * Use the template from the given file instead of the
+   * built-in one (use --show-template to obtain an example)
+   */
+  readonly template?: string;
+
+  /**
+   * Toggle CloudFormation termination protection on the
+   * bootstrap stacks
+   * @default false
+   */
+  readonly terminationProtection?: boolean;
+
+  /**
+   * Use the example permissions boundary.
+   * @default undefined
+   */
+  readonly examplePermissionsBoundary?: boolean;
+
+  /**
+   * Use the permissions boundary specified by name.
+   * @default undefined
+   */
+  readonly customPermissionsBoundary?: string;
+
+  /**
+   * Use previous values for existing parameters (you must specify
+   * all parameters on every deployment if this is disabled)
+   * @default true
+   */
+  readonly usePreviousParameters?: boolean;
+
+  /**
+   * Whether to execute ChangeSet (--no-execute will NOT execute
+   * the ChangeSet)
+   * @default true
+   */
+  readonly execute?: boolean;
+
+  /**
+   * String which must be unique for each bootstrap stack. You
+   * must configure it on your CDK app if you change this
+   * from the default.
+   * @default undefined
+   */
+  readonly qualifier?: string;
+
+  /**
+   * The AWS account IDs that should be trusted to perform
+   * deployments into this environment (may be repeated,
+   * modern bootstrapping only)
+   * @default undefined
+   */
+  readonly trust?: string;
+
+  /**
+   * The AWS account IDs that should be trusted to look
+   * up values in this environment (may be repeated,
+   * modern bootstrapping only)
+   * @default undefined
+   */
+  readonly trustForLookup?: string;
+
+  /**
+   * AWS KMS master key ID used for the SSE-KMS encryption
+   * @default undefined
+   */
+  readonly bootstrapKmsKeyId?: string;
+
+  /**
+   * Create a Customer Master Key (CMK) for the bootstrap
+   * bucket (you will be charged but can customize
+   * permissions, modern bootstrapping only)
+   * @default undefined
+   */
+  readonly bootstrapCustomerKey?: string;
+
+  /**
+   * Block public access configuration on CDK toolkit
+   * bucket (enabled by default)
+   * @default undefined
+   */
+  readonly publicAccessBlockConfiguration?: string;
+}

Diff for: packages/@aws-cdk/cli-lib-alpha/lib/commands/index.ts

@@ -3,3 +3,4 @@ export * from './deploy';
 export * from './destroy';
 export * from './list';
 export * from './synth';
+export * from './bootstrap';

Diff for: packages/@aws-cdk/cli-lib-alpha/test/commands.test.ts

@@ -318,4 +318,16 @@ describe('list', () => {
       expect.anything(),
     );
   });
+
+  test('bootstrap without options', async () => {
+    // WHEN
+    await cdk.bootstrap();
+
+    // THEN
+    expect(jest.mocked(cli.exec)).toHaveBeenCalledWith(
+      ['bootstrap', '--all'],
+      expect.anything(),
+    );
+  });
+
 });