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Refactor/infra cost#83

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ayuki-joto merged 5 commits intomainfrom
refactor/infra-cost
Feb 19, 2026
Merged

Refactor/infra cost#83
ayuki-joto merged 5 commits intomainfrom
refactor/infra-cost

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🎩 What? Why?

rdsのversion更新
elasticacheのメンテナンス

📌 Related Issues

  • Related to #?
  • Fixes #?

📋 Subtasks

  • Add CHANGELOG upgrade notes, if required
  • If there's a new public field, add it to GraphQL API
  • Add documentation regarding the feature
  • Add/modify seeds
  • Add tests
  • Another subtask

📷 Screenshots (optional)

Description

- Deleted `dev2` stage configuration (`dev2.json`) and related resources.
- Updated valid stages in `decidim-cfj-cdk.ts` and documentation (`CLAUDE.md`).
…d storage

- Switched RDS instance type to `t4g.micro` for better performance.
- Upgraded PostgreSQL engine version to 16.11.
- Changed storage type from GP2 to GP3 for cost-efficiency.
- Added a TODO comment to migrate to AWS Secrets Manager for password rotation.
- Switched RDS instance type to `db.t4g.micro`, upgraded engine version to 16.11, and storage type to GP3.
- Updated ElastiCache to use `cache.t3.micro`, upgraded Redis to engine version 7.x, and added a parameter group with `volatile-lru` eviction policy.
- Refactored CloudFront setup for dynamic price class (`PRICE_CLASS_ALL/200`) based on environment and streamlined configuration. Updated WAF exclusions to address false positives for rich text input.
- Changed RDS instance type to `t4g.micro` and updated snapshot identifier to `decidim-master-2025-12-25`.
- Modified ElastiCache node type to `cache.t3.micro`.
- Adjusted Rails startup command from `;` to `&&` for improved execution reliability.
@ayuki-joto ayuki-joto merged commit 6a7fd05 into main Feb 19, 2026
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@ayuki-joto ayuki-joto deleted the refactor/infra-cost branch February 19, 2026 01:05
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