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Use Github instead of Codecommit in Amplify CI/CD #14

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59 changes: 37 additions & 22 deletions frontend/lib/amplify-chatui-stack.ts
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Original file line number Diff line number Diff line change
@@ -1,13 +1,9 @@
import * as amplify from '@aws-cdk/aws-amplify-alpha';
import * as cdk from 'aws-cdk-lib';
import { Construct } from 'constructs';
import * as codecommit from 'aws-cdk-lib/aws-codecommit';
import * as ssm from 'aws-cdk-lib/aws-ssm';
import * as lambda from 'aws-cdk-lib/aws-lambda';
import * as apigateway from "aws-cdk-lib/aws-apigateway";
import * as cognito from 'aws-cdk-lib/aws-cognito';
import * as iam from 'aws-cdk-lib/aws-iam';
import path = require('path');


export class AmplifyChatuiStack extends cdk.Stack {
constructor(scope: Construct, id: string, props?: cdk.StackProps) {
Expand All @@ -30,42 +26,61 @@ export class AmplifyChatuiStack extends cdk.Stack {
);

// -------------------------------------------------------------------------
// Setup IAM permissions for Amplify CI/CD
const amplify_role = new iam.Role(this, 'AmplifyRole', {
assumedBy: new iam.ServicePrincipal('amplify.amazonaws.com'),
description: 'CDK Amplify Role',
});

// create a new repository and initialize it with the chatui nextjs app source code.
// https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_codecommit-readme.html
const amplifyChatUICodeCommitRepo = new codecommit.Repository(this, 'NextJsGitRepository', {
repositoryName: 'nextjs-amplify-chatui',
description: 'A chatui with nextjs hosted on AWS Amplify.',
code: codecommit.Code.fromDirectory(path.join(__dirname, '../chat-app'), 'main')
// Adding the same permissions added by the process documented in the link
// https://docs.aws.amazon.com/amplify/latest/userguide/how-to-service-role-amplify-console.html
amplify_role.addManagedPolicy(iam.ManagedPolicy.fromAwsManagedPolicyName('AdministratorAccess-Amplify'));

// -------------------------------------------------------------------------
const AmplifyChatUIGitHubSourceCodeProvider = new amplify.GitHubSourceCodeProvider({
owner: "aws-samples",
repository: "build-an-agentic-llm-assistant",
oauthToken: cdk.SecretValue.secretsManager("github-access-token-for-amplify-cicd")
});

// from https://docs.aws.amazon.com/cdk/api/v2/docs/aws-amplify-alpha-readme.html
const amplifyChatUI = new amplify.App(this, 'AmplifyChatUI', {
const amplifyChatUI = new amplify.App(this, 'AmplifyNextJsChatUI', {
autoBranchDeletion: true,
sourceCodeProvider: new amplify.CodeCommitSourceCodeProvider(
{repository: amplifyChatUICodeCommitRepo}),
sourceCodeProvider: AmplifyChatUIGitHubSourceCodeProvider,
// enable server side rendering
platform: amplify.Platform.WEB_COMPUTE,
role: amplify_role,
// https://docs.aws.amazon.com/amplify/latest/userguide/environment-variables.html#amplify-console-environment-variables
environmentVariables: {
// the following custom image is used to support Next.js 14, see links for details:
// 1. https://aws.amazon.com/blogs/mobile/6-new-aws-amplify-launches-to-make-frontend-development-easier/
// 2. https://github.com/aws-cloudformation/cloudformation-coverage-roadmap/issues/1299
'_CUSTOM_IMAGE': 'amplify:al2023',
'AMPLIFY_USERPOOL_ID': cognito_user_pool_id_parameter,
'COGNITO_USERPOOL_CLIENT_ID': cognito_user_pool_client_id_parameter,
'API_ENDPOINT': agent_api_parameter
'API_ENDPOINT': agent_api_parameter,
'AMPLIFY_DIFF_DEPLOY': 'false',
'AMPLIFY_MONOREPO_APP_ROOT': 'frontend/chat-app',
'NEXT_PUBLIC_AWS_AMPLIFY_REGION': this.region,
}
});

amplifyChatUI.addBranch('main', {stage: "PRODUCTION"});
new cdk.CfnResource(this, 'AmplifyBranch', {
type: 'AWS::Amplify::Branch',
properties: {
AppId: amplifyChatUI.appId,
BranchName: 'main',
Stage: 'PRODUCTION',
Framework: 'Next.js - SSR'
}
})

// -----------------------------------------------------------------------
// stack outputs
// Stack outputs

new cdk.CfnOutput(this, "AmplifyAppURL", {
value: amplifyChatUI.defaultDomain,
});

new cdk.CfnOutput(this, "AppId", {
value: amplifyChatUI.appId
});

}
}
}
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