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Replaces OpenSearch Serverless with Aurora PostgreSQL Serverless v2 + pgvector as the Bedrock Knowledge Base vector store (v1 PR3). Bedrock KB requires Aurora SSv2 (RDS Data API), not a plain RDS instance — so the DB engine moves to Aurora. - foundation: rds.DatabaseInstance (PG15) -> rds.DatabaseCluster Aurora SSv2 (0.5-4 ACU, enableDataApi). RDS alarms: free-storage -> freeable-memory. - compute: delete all AOSS (collection, policies, VPC endpoint, index-creator); add bedrock_user secret + KB role (scoped rds-data + secret read); repoint CfnKnowledgeBase to RDS storage (bedrock_integration.bedrock_kb, vector(1024)). - lambdas: oss-index-creator -> aurora-pgvector-init (bootstrap schema/table/ indexes/role via RDS Data API; transient-error retry; password guard). - ADR 0001 documents the decision. Eliminates the ~$175-350/mo AOSS OCU floor. NAT kept (egress still needed). GPT-4.1 cross-review: no BLOCK (FIX applied). tsc clean; foundation synth shows Aurora cluster with Data API enabled; 23 pytest pass.
47 lines
1.6 KiB
TypeScript
47 lines
1.6 KiB
TypeScript
import * as cdk from 'aws-cdk-lib';
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import { FoundationStack } from '../lib/foundation-stack';
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import { ComputeStack } from '../lib/compute-stack';
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import { FrontendStack } from '../lib/frontend-stack';
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import { resolveConfig } from '../lib/config';
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const app = new cdk.App();
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// Multi-env (PR2): `-c env=staging` (default prod). prod keeps the exact construct IDs
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// and stack names of the deployed stacks (stackSuffix=''); only staging is suffixed.
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const config = resolveConfig(app);
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const { env, stackSuffix } = config;
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const foundation = new FoundationStack(app, `proposal-system-foundation${stackSuffix}`, {
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stackName: `proposal-system-foundation${stackSuffix}`,
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env,
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config,
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description: 'Proposal System - VPC, RDS, S3, SQS, Cognito',
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});
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const compute = new ComputeStack(app, `proposal-system-compute${stackSuffix}`, {
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stackName: `proposal-system-compute${stackSuffix}`,
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env,
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config,
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description: 'Proposal System - API Lambda, Python Lambdas, Bedrock KB',
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vpc: foundation.vpc,
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lambdaSecurityGroup: foundation.lambdaSecurityGroup,
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dbSecret: foundation.dbSecret,
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dbCluster: foundation.dbCluster,
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uploadsBucket: foundation.uploadsBucket,
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generatedBucket: foundation.generatedBucket,
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libraryBucket: foundation.libraryBucket,
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jobsQueue: foundation.jobsQueue,
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userPool: foundation.userPool,
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alarmTopic: foundation.alarmTopic,
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webClientId: foundation.webClientId,
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mobileClientId: foundation.mobileClientId,
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});
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new FrontendStack(app, `proposal-system-frontend${stackSuffix}`, {
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stackName: `proposal-system-frontend${stackSuffix}`,
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env,
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config,
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description: 'Proposal System - CloudFront + S3 web hosting',
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});
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void compute;
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