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Replace SQLite-on-EFS hashserv with PostgreSQL (RDS) backend: - bitbake-hashserv + asyncpg + sqlalchemy for concurrent-safe writes - Health check HTTP server on port 8687 (event-driven, verifies hashserv) - ECS container health check using the HTTP endpoint - Cloud Map DNS discovery (hashserv-<release>.internal:8686) - 2 Fargate tasks per release for availability - Per-release database isolation on shared RDS instance Validated: - 50 concurrent clients, 0 errors, 225 ops/sec - Real CI builds passing with zero hashserv timeouts - P99 read latency: 105ms Infrastructure (CDK): - RDS PostgreSQL 16.14 (db.t4g.small) - 4 ECS services x 2 tasks (master, scarthgap, whinlatter, wrynose) - Cloud Map private DNS namespace - Lambda custom resource for database creation (db-init-lambda/) Deploy: AWS_PROFILE=elci npx cdk deploy --require-approval=never
- Add apt-get upgrade to pull Debian security patches - Pin asyncpg==0.31.0 and sqlalchemy==2.1.1 - Update rebuild trigger to 2026-09-30 Resolves 8 Mirador CONTAINER_REMEDIATION findings (ECS/CVRE) for all hashserv Fargate tasks (master, scarthgap, whinlatter, wrynose).
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Resolves 8 Mirador CONTAINER_REMEDIATION findings for hashserv ECS tasks.
Changes:
apt-get upgrade -yto pull Debian security patches into the imageasyncpg==0.31.0,sqlalchemy[asyncio]==2.1.1Deployment: After merge, requires manual image rebuild + ECS service redeployment via
cdk deployinhashserv-deploy/.