WordPress を AWS Lambda で運用する
以前 WordPress を AWS Lambda で 運用する 記事を投稿 (英語) しましたが、 EFS対応前 に執筆しました。EFS を使える様になって、WordPress を AWS Lambda 内の実行環境が完全に変わったので新しい記事を書きました。
Taking a look at MapLibre Tiles (MLT)
With the release of MapLibre GL JS v5.12.0, MapLibre Tiles (MLT) are now generally accessible to the normal user in a web browser!
This post gives a quick introduction to MapLibre Tiles and then peeks into their internal layout.
What Are MapLibre Tiles?
Until now, the standard vector tile format for MapLibre and Mapbox has been Mapbox Vector Tile (MVT). MapLibre introduced its own format at FOSS4G Europe this year.
The official English spec lives here.
WordPress on AWS Lambda (EFS Edition)
I previously wrote a post about running WordPress on AWS Lambda, but it was before EFS support was announced (EFS is a managed network file system AWS provides). Being able to use EFS completely changes the way WordPress works in Lambda (for the better!), so I felt it warranted a new blog post.
In addition, this time I’m using Terraform instead of SAM. This matches the existing infrastructure-as-code setup I use when I deploy infrastructure for clients. Here’s the Terraform module ( source code).
Habits I'll be keeping after COVID-19
During the COVID-19 pandemic, schools and daycares have been closed, so my family decided to use this as an opportunity to make some habits to make sure we can get through this period with minimal interruptions to life and work. Here are some habits that have worked so well for us that we’re planning on keeping them, even after the kids go back to school / daycare.
Keeping a schedule
We use a schedule to make sure the time we eat, sleep, and do activities are at regular times every day. At first, I thought this would be a good tool to let the kids know when we were working and when we could play together, but it’s proven to be a useful tool to both adults and children. I’ve written a blog post in Japanese about this as well.
Rails on AWS: Do you need nginx between Puma and ALB?
When I set up Rails on AWS, I usually use the following pattern:
(CloudFront) → ALB → Puma
I was wondering: Is it always necessary to put nginx between the ALB and Puma server?
My theory behind not using nginx is that because it has its own queue (while the Classic Load Balancer had a very limited “surge queue”, the ALB does not have such a queue), it will help in getting responses back to the user (trading for increased latency) while hindering metrics used for autoscaling and choosing what backend to route the request to (such as Rejected Connection Count).
家庭料理のようなプロダクト開発
私は料理が好きです。特にパンを焼くのが好きで、この間初めて Cookpad に公開したのは フォカッチャのレシピ でした。フリーランスでシステム開発をしているエンジニアで、ゼロスタートから運用まで持っていくことを得意分野としています。この2つの要素を組み合わせて新しい何かを作るのが趣味ですが、そのことを今まであまりブログに書いたことはありませんでした。今回のアプリを作ったことで、「アプリは家庭料理みたいでもいい（ An app can be a home-cooked meal）」という記事のことを思い出して、同様の考え方を共有したいと思いました。
A quick shortcut to open a Ruby gem in VS Code
While working on a Ruby project, I often find myself referring to the code of various libraries when it’s easier than looking up the documentation. For this, I used to use code (bundle show GEM_NAME), but recently I’ve been getting this warning:
[DEPRECATED] use `bundle info $GEM_NAME` instead of `bundle show $GEM_NAME`
Okay, that’s fine, but bundle info returns a bunch of stuff that would confuse VS Code:
> bundle info devise
* devise (4.7.1)
Summary: Flexible authentication solution for Rails with Warden
Homepage: https://github.com/plataformatec/devise
Path: /Users/keita/.asdf/installs/ruby/2.7.0/lib/ruby/gems/2.7.0/gems/devise-4.7.1
Luckily there’s bundle info $GEM_NAME --path. code (bundle info devise --path) is kind of long to type out every time, though, so I decided to make an alias.
How I use Git
I’ve been using Git at work for around 10 years now. I started using Git with a GUI ( Tower -- back when I was eligible for the student discount!), but now I use the CLI for everything except complicated diffs and merges, where I use Kaleidoscope.
A question I get asked by my coworkers often is: “how in the world do you manage using Git without a GUI?”. This blog post is supposed to answer this question.
"Logging in" to AWS ECS Fargate
I’m a big fan of AWS ECS Fargate. I’ve written in the past about managing ECS clusters, and with Fargate – all of that work disappears and is managed by AWS instead. I like to refer to this as quasi-serverless. Sorta-serverless? Almost-serverless? I’m open to better suggestions. 😂
There are a few limitations of running in Fargate, and this blog post will focus on working around one limitation: there’s easy way to get an interactive command line shell within a running Fargate container.
Serverless Meetup Tokyo #13 に参加してみました
Serverless Meetup Tokyo 第13回 に参加してみました。
会場は Speee Lounge
ServerlessDays Tokyo 2019
というイベントの啓発（参加者、登壇者）ありました。私も参加しようと思っています。登壇は、、検討します（笑）
Hosting a Single Page Application with an API with CloudFront and S3
I’ve written about how to host a single page application (SPA) on AWS using CloudFront and S3 before, using the CloudFront “rewrite not found errors as a 200 response with index.html” trick.
Recently, working on a few serverless apps, I’ve realized that this trick, while quick, isn’t perfect. The specific case where it broke down was when the API is configured as a behavior on CloudFront (I usually scope the API to /api on the same domain as the frontend, so CORS and OPTIONS requests aren’t necessary). If the API returned a 404 Not Found response, CloudFront would rewrite it to 200 OK index.html, and the front-end application would get confused. Unfortunately, CloudFront doesn’t support customized error responses per behavior, so the only way to fix this was to use Lambda@Edge instead.
