[brokermr810]

Summary

• add a single-node AWS Marketplace CloudFormation delivery template
• use immutable Marketplace image tags and a commit-pinned Compose definition
• generate deployment secrets, store the initial admin password in Parameter Store, and avoid opening SSH or data-service ports
• keep application data on an encrypted retained EBS volume and create a PostgreSQL backup before upgrades
• add stable public IP outputs plus English and Chinese launch, upgrade, rollback, deletion, and cost guidance
• add regression tests for immutable artifacts, network exposure, secret generation, backup, and data-retention documentation

Validation

• cfn-lint deploy/aws-marketplace/quantdinger-single-node.yaml
• bash -n for both embedded shell scripts
• python -m pytest backend_api_python/tests/test_aws_marketplace_template.py -q
• docker compose config --quiet with all six Marketplace image overrides
• git diff --check

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues
0 New dependency risks

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud