I'm a Platform Engineer, tool maker, and OSS contributor. I love Go. Please see profile and resume too. I'm passionate about the automation and improving the developer experience and security of CI. Especially, I continue improving the workflow of Terraform for a long time. I've developed tons of OSS with Go and contributed to a lot of OSS. I've published a lot of blog posts to share my knowledge and work.
- Go, Shell Script
- AWS, Google Cloud
- GitHub Actions, CircleCI, AWS CodeBuild, Google Cloud Build, Drone
- Docker, k8s
- Terraform, Ansible
- Renovate, Conftest, DataDog
| date | event | style | presentation title |
|---|---|---|---|
| 2024-06-07 | Lint Night #3 | Talk (15 min) | lintnet - General purpose linter powered by Jsonnet |
| 2024-03-26 | CI/CD Test Night #7 | Talk (20 min) | CI/CD のセキュリティや Developer Experience を改善するツールやプラクティス |
| 2021-09-30 | HashiTalks Japan 2021 (youtube) | Talk (30 min) | Terraform Platform in Quipper (youtube) |
| 2021-07-07 | Open Policy Agent Rego Knowledge Sharing Meetup (youtube) | LT (5min) | Quipper における Rego の活用事例 (youtube) |
| date | repository |
|---|---|
| 2020-11-29 / now | kreuzwerker/terraform-provider-docker |
| 2018-07-12 / 2019-06-25 | line/line-bot-sdk-go |
I have contributed various OSS. Full List
I have developed various OSS. Full List
- aqua - Declarative CLI Version manager. Support Lazy Install and Sharable configuration mechanism named Registry. Version is switched seamlessly
- tfcmt - Fork of mercari/tfnotify. tfcmt enhances tfnotify in many ways, including Terraform >= v0.15 support and advanced formatting options
- tfaction - Framework for Monorepo to build high level Terraform Workflows by GitHub Actions
- github-comment - CLI to post and hide GitHub Pull Request Comments with YAML configuration file
- lintnet - General purpose linter for structured configuration data powered by Jsonnet
- pinact - Pin GitHub Actions versions
- ghalint - GitHub Actions Linter
- tfprovidercheck - CLI to prevent malicious Terraform Providers from being executed. You can define the allow list of Terraform Providers and their versions, and check if disallowed providers aren't used
- Graylog API client for Go and terraform provider for Graylog
- tfmigrator - Go library and CLI to migrate Terraform Configuration and State
- flute - Go HTTP client testing framework
- cmdx - Task Runner
- ci-info - CLI tool to get CI related information
- asciinema-trim - Trim and change the playback speed of asciinema's session
- github-ci-monitor - Monitor GitHub repositories CI statues by DataDog
| name | description |
|---|---|
| oss-contribution-guide | OSS Contribution Guide |
| guide-github-action-renovate | Guide for building nice GitHub Actions Workflows with Renovate |
I have written many blog posts to share my knowledge.
- English
- Japanese
I picked out some blog posts below.
| date | tags | title |
|---|---|---|
| 2023-10-01 | aqua | aqua CLI Version Manager 入門 |
| 2023-10-22 | GitHub Actions, security | pull_request_target で GitHub Actions の改竄を防ぐ |
| 2023-05-14 | GitHub Actions, Renovate, security | GitHub Actions による Renovate の安全自動マージ |
| 2022-02-18 | Renovate, CI | Renovate の大量の Pull Request を処理する技術 |
| 2022-02-04 | terraform, GitHub Actions | Terraform の CI を AWS CodeBuild から GitHub Actions + tfaction に移行しました |
| 2021-08-02 | terraform | AWS IAM の管理を miam から Terraform に移行した話 |
| 2021-04-01 | terraform, CI | Terraform リポジトリをマージして CI/CD を改善した話 |
| 2023-11-05 | terraform, security | tfprovidercheck - 危険な Terraform Provider の実行を防ぐ |
| 2023-05-01 | GitHub Actions, security | pinact - GitHub Actions のバージョンを commit hash で固定 |
| 2023-02-12 | GitHub Actions, security | GitHub Actions の secrets の公開範囲と permissions を最小限にする |
| 2023-06-05 | tfaction, terraform | tfaction による Terraform の Drift Detection |
| 2021-12-28 | CI | github-comment で PR にコメントをして CI の結果を分かりやすくする |
| 2021-12-26 | terraform, CI | tfcmt で Terraform の CI/CD を改善する |
| date | tags | title |
|---|---|---|
| 2023-10-23 | GitHub Actions, security | Secure GitHub Actions by pull_request_target |
| 2023-11-05 | terraform, security, CI | Prevent malicious Terraform Providers |
| 2023-06-06 | terraform, CI | Terraform's Drift Detection by tfaction |
| 2022-01-21 | terraform, CI | tfcmt - Improve Terraform Workflow with PR Comment and Label |
| 2023-02-12 | GitHub Actions, security | Minimize the scope of secrets and permissions in GitHub Actions |
| 2022-05-29 | terraform, Renovate, CI | Automate handling a number of Pull Requests by Renovate in Terraform Monorepo |
| 2022-02-25 | terraform, GitHub Actions | Migrate Terraform CI from AWS CodeBuild to GitHub Actions |
| 2021-09-26 | Renovate | Tips about Renovate |