chore: ECR MUTABLE → IMMUTABLE (#63)#64
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동일 태그 덮어쓰기를 막아 배포 이미지 추적성·공급망 안전성 확보. 주의: :latest 재push가 거부되므로 커밋 SHA 태그 전환이 동반되어야 함. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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closes #63
변경
terraform/ecr.tf:image_tag_mutability = "IMMUTABLE"(backend/frontend/ai 3개 레포 공통, for_each)동일 태그에 다른 이미지를 덮어쓰지 못하게 해 배포 이미지 추적성·공급망 안전성 확보. (코드리뷰 #19/#24)
IMMUTABLE은 이미 존재하는 태그로 push하면 거부한다.
:latest를 사용 → CI가:latest를 두 번째로 push하면 실패한다.:latest→ 커밋 SHA 태그 전환(CI push + kustomizeimages:)이 동반되어야 한다. (별도 작업):latest이미지가 있으면terraform apply시 레포 설정만 바뀌고 기존 이미지는 유지되나, 이후 같은 태그 push가 막힘.검증
terraform fmt통과. (적용은 EKS/AWS 환경에서terraform plan으로 확인 권장 — 기존 레포의 mutability 변경은 in-place 업데이트)🤖 Generated with Claude Code