Multi-Account IaC Governance Pack

Dozens of AWS accounts, governed from one hub through code and PR approval — in 1–2 months.

Available 150万円〜(税別・目安) 1–2 months Free quote

What Happens as Accounts Multiply

The root cause isn't skill — it's the absence of a governance pipeline.

Deliverables

01Hub design & build

Hub account with cross-account roles rolled out to every target.

02Two-repo role split

Juniors ship safely by writing parameters only.

03PR-gated CI/CD

Auto-lint on push, senior approval to merge, diff-based deploy.

04Naming, tags, registry

One registry line to onboard a new account.

05Runbooks + hands-on

Separate senior and junior runbooks, with hands-on transfer.

06Assisted period

We stay alongside your first real changes.

Delivery Flow

STEP 0・無料

Discovery

1〜2回のオンライン打ち合わせ

Free — ends with a fixed quote and plan.

STEP 1

Design

1〜2週間

Hub, conventions, registry, approver design.

STEP 2

Build

2〜4週間

Hub CI/CD, role rollout, end-to-end pipeline test.

STEP 3

Handover

1〜2週間+併走

Runbooks, hands-on, assisted first changes.

How It Works

ハブアカウント テンプレート シニア担当 パラメータ 若手担当 自動検証(構文・参照チェック) push のたびに実行 プルリクエスト承認ゲート シニア承認なしに本番へ届かない 差分検知デプロイ 変わった分だけ自動配布 AssumeRole 本番アカウント 検証アカウント ログ集約 セキュリティ … 数十アカウントへ横展開 導入後にできること 全変更がコードとして履歴に残る 監査対応が「リポジトリを見せる」で済む 若手が安全に本番作業へ参加できる アカウント追加が台帳1行+数分
Simplified architecture

Generalized from a design running across ~40 accounts (incl. a PCI DSS estate) at a major retail group.

Prerequisites

Scale 5 to dozens of accounts
IaC CloudFormation standard, Terraform on request
CI/CD AWS-native standard; GitHub/GitLab supported
You provide Admin access during build; at least one approver
Recommended, not required

Pricing

150万円〜(税別) Varies by scale; itemized quote provided

Included

  • All deliverables 01–06
  • No billing beyond the quote
  • Q&A during assisted period

Not included

  • AWS usage fees (estimated upfront)
  • Bulk import of legacy resources
  • Ongoing ops (separate plan)

FAQ

Is it worth it with only ~5 accounts?
Yes — and it's cheaper to adopt early.
We use Terraform — supported?
Yes, the same governance design works with Terraform.
What happens to existing resources?
Nothing breaks — new changes flow through the pipeline first.
GitHub or GitLab?
Yes, both are supported variants.
Can we run it ourselves afterwards?
Yes — self-sufficiency is the goal. Managed ops available too.
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