hotfix: MySQL 초기화 완료 판정 로직 수정

[Hexeong]

관련 이슈

작업 내용

• DB EC2 bootstrap의 MySQL readiness check를 mysqladmin ping에서 root 인증 기반 쿼리 실행으로 변경했습니다.
• MySQL 초기화 시간이 길어지는 경우를 고려해 대기 시간을 60초에서 180초로 늘렸습니다.
• 인증 가능한 상태가 된 뒤 scadmin 유저 생성 SQL이 실행되도록 순서를 보강했습니다.

특이 사항

문제 원인은 mysqladmin ping이 MySQL 서버 프로세스 응답 여부만으로 성공할 수 있어, root 인증이 아직 가능한 상태가 아닌데도 bootstrap이 다음 단계로 넘어간 점이었습니다. 이 때문에 CREATE USER 실행 시점에 ERROR 1045 (28000): Access denied for user 'root'@'localhost'가 발생했고, cloud-init final stage가 실패했습니다.

변경 후에는 mysql -uroot -p... -e "SELECT 1"이 성공해야만 준비 완료로 판단하므로, root 인증과 쿼리 실행이 모두 가능한 상태에서 유저 생성이 진행됩니다.

리뷰 요구사항 (선택)

• root 인증 기반 readiness check로 변경한 방향이 bootstrap 안정성 측면에서 적절한지 확인 부탁드립니다.
• 검증: bash -n modules/app_stack/scripts/mysql_setup.sh.tftpl, git diff --check, prod terraform plan 확인 완료 (Plan: 2 to add, 0 to change, 2 to destroy).

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📥 Commits

Reviewing files that changed from the base of the PR and between 6db3dc2 and a177cf1.

📒 Files selected for processing (1)

• modules/app_stack/scripts/mysql_setup.sh.tftpl

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch hotfix/early-readiness-check-prob

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[github-actions]

Terraform Plan: stage

No changes. Your infrastructure matches the configuration.

전체 plan 결과는 보안을 위해 댓글에 포함되지 않습니다. 워크플로우 실행 아티팩트를 확인하세요.

[github-actions]

Terraform Plan: prod

Plan: 2 to add, 0 to change, 2 to destroy.

전체 plan 결과는 보안을 위해 댓글에 포함되지 않습니다. 워크플로우 실행 아티팩트를 확인하세요.

[lsy1307]

야옹