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CyberAgent Developers Blog

2024/9/12 14:302024/9/12 16:43

We spoke at a 6-company joint SRE study session | CyberAgent Developers Blog

This is a retrospective blog by members who gave presentations on "Cross-sectional SRE promotion and maturity assessment" at a joint SRE study session held on March 12, 2022 by six companies: LINE, Recruit, DeNA, Mercari Group, Cookpad, and CA.

https://developers.cyberagent.co.jp/blog/archives/34738/

How to easily incorporate hand-crafted AWS resources into Terraform | CyberAgent Developers Blog

I will introduce how to use Terraform and Terraformer to easily drop manually created AWS resources into Terraform. This time, I tried to drop AWS resources that had not been touched for six years using Terraformer.

https://developers.cyberagent.co.jp/blog/archives/33331/

We asked Topal CTO @rrreeeyyy about SRE! | CyberAgent Developers Blog

I'm Ozawa from the Service Reliability Group (SRG) of the Technology Headquarters. #SRG (Service Reli...

https://developers.cyberagent.co.jp/blog/archives/31404/

MongoDB study session held | CyberAgent Developers Blog

Introduction I am Kobayashi from the Service Reliability Group (SRG) of the Technology Headquarters. #SRG (Service ...

https://developers.cyberagent.co.jp/blog/archives/30822/

Is Aurora MySQL backup really enough? | CyberAgent Developers Blog

We will show you how to use the binary log to restore to just before the erroneous query, rather than simply restoring to a specific date and time.

https://developers.cyberagent.co.jp/blog/archives/29925/

Considering how to switch to RDS Graviton2 with minimal risk [Upgrade Edition] | CyberAgent Developers Blog

We picked up several methods for upgrading RDS Aurora MySQL and compared them.

https://developers.cyberagent.co.jp/blog/archives/29438/

Are you really operating your services? We held an AWS Observability Workshop to learn about operational monitoring!

This article is a report on the AWS Observability Workshop, which was held specially for the CyberAgent Group and several other companies. We hope that this article will provide an opportunity to reconsider what operations are.

https://developers.cyberagent.co.jp/blog/archives/29187/

Introducing Database Working Group Activities | CyberAgent Developers Blog

Introduction I am Kikai from the Service Reliability Group (SRG) of the Technology Headquarters. #SRG (Service ...

https://developers.cyberagent.co.jp/blog/archives/28932/

Autoscaling self-hosted runners with actions-runner-controller

If you want to use Github Actions with GHES, you will have to choose self-hosted runners because GitHub-hosted runners are not available. If you install self-hosted runners according to the official installation method, there are issues such as a lack of idempotence and the inability to auto-scale according to the job queue. There is a tool called actions-runner-controller that can run self-hosted runners while solving these issues.

https://developers.cyberagent.co.jp/blog/archives/28713/

Use Percona XtraBackup to back up MySQL directly to Amazon S3 | CyberAgent Developers Blog

This is @rarirureluis from the Service Reliability Group (SRG) of the Technology Headquarters ☺ # ...

https://developers.cyberagent.co.jp/blog/archives/28454/

Migrating from CentOS Linux 8 to CentOS Stream 8 is now super easy | CyberAgent Developers Blog

This is @rarirureluis from the Service Reliability Group (SRG) of the Technology Headquarters ☺ # ...

https://developers.cyberagent.co.jp/blog/archives/28180/

Switching Amazon EC2 to Arm has been nothing but happiness | CyberAgent Developers Blog

This is @rarirureluis from the Service Reliability Group (SRG) of the Technology Headquarters 👳 # ...

https://developers.cyberagent.co.jp/blog/archives/27782/

The first completely online AWS GameDay was held in Japan!

This article is a report on the AWS GameDay that was held last August as a special event for CyberAgent group companies.

https://developers.cyberagent.co.jp/blog/archives/26934/

The past and future of Baikonur, an infrastructure-related OSS project

It's been a while. I'm @prog893 and I love writing long articles. I'd like to talk about Project Baikonur, a system I've been working on for a while to make infrastructure-related things open source. Project Baikonur is a project in our company to make Terraform modules, various infrastructure-related things, and tools that improve development efficiency open source. It originally started as an internal OSS project, and after going through various events that I will explain in this article, we decided to make it publicly available on GitHub. We are making the modules and tools available for use outside the company as well.

https://developers.cyberagent.co.jp/blog/archives/23889/

Must-see for business managers! Effective use of AWS Well-Architected Framework for business @AWS Summit Tokyo 2019

This is a presentation from AWS Summit Tokyo 2019. This time, we presented a case study on "Ameba Fortune Telling Hall SATORI," a service provided by ASTROBOX Co., Ltd. We talked about how we used the AWS Well-Architected Framework when migrating a system that was running on a private cloud to AWS, and also introduced our proprietary CA Well-Architected Framework.

https://developers.cyberagent.co.jp/blog/archives/21982/

The challenge of creating a well-architected organization

This article is the 13th article of the CyberAgent Developers Advent Calendar 2018. Nice to meet you, we are Tsuge and Okada from the Service Reliability Group of the Technology Headquarters. This time, we would like to introduce the activities we are conducting from an organizational perspective.

https://developers.cyberagent.co.jp/blog/archives/19224/

How are CA engineers keeping up with cutting-edge technology? AR/VR study session report

This is @prog893 from CyberAgent's Technology Department, known for DB acceleration and AWS ECS debugging. In the "CyberAgent Share House" for engineers and creators where I live now, study sessions and social gatherings are regularly held by residents. This time, I would like to introduce the "Meeting to Discuss the Present and Future of AR/VR" that was held the other day.

https://developers.cyberagent.co.jp/blog/archives/17247/

Are you using ECS with EC2 Auto-Scaling? Is the error rate high? Can we help you? | CyberAgent Developers Blog

This is @prog893, an infrastructure engineer at CyberAgent's Technology Division. I would like to introduce the infrastructure improvements to the music streaming service "AWA". This time, I would like to talk about how we have significantly improved the error rate at the music download and streaming layers.

https://developers.cyberagent.co.jp/blog/archives/14664/

How to fully recover your database in just 55 minutes even if it goes blank | CyberAgent Developers Blog

Nice to meet you. I'm @prog893, an infrastructure engineer at CyberAgent's Technology Division. Today I'd like to introduce the infrastructure improvements we made to shorten the recovery time of the MongoDB cluster of the music streaming service "AWA." We were able to shorten the recovery time from 12 hours to 55 minutes, and I hope this will be helpful to you.

https://developers.cyberagent.co.jp/blog/archives/13597/

Performance comparison of NVMe disks on AWS and GCP | CyberAgent Developers Blog

This is Tsuge from the Technology Headquarters. This time, I will be writing about Mr. Urushida, who joined the Technology Headquarters Service Reliability Group as an intern for one month.

https://developers.cyberagent.co.jp/blog/archives/6623/

The story of the image distribution system that supports Ameba and the Lsyncd that supports it | CyberAgent Developers Blog

Hello everyone. I'm Kirii, who joined the company as a new graduate in 2016. I'm in the Technology Headquarters, and I'm involved in infrastructure work, mainly on Ameba's platform system. I have a sore back. Can you recommend a chiropractor near Shibuya?

https://developers.cyberagent.co.jp/blog/archives/3572/

GitHub Universe 2016 Report

Hello everyone!!! My name is @kakerukaeru. I usually help facilitate discussions by posting the best AAs on Slack, make random collages to lighten the mood, and accidentally bombard people with contradictory AAs. I also occasionally take care of the infrastructure for content distribution and manage GHE.

https://developers.cyberagent.co.jp/blog/archives/3233/

Ameblo 2016: Infrastructure Edition ~ Behind the Scenes of a Large-Scale Renewal ~ | CyberAgent Developers Blog

My name is Nakajima (@nakashii_), and I work in the Technology Department as an infrastructure engineer at CyberAgent. This is my first post on the Engineer Blog. This is the first post in the CyberAgent Developers Advent Calendar 2016.

https://developers.cyberagent.co.jp/blog/archives/2653/

AbemaTV Developer Conference 2016 Summary | CyberAgent Developers Blog

Hello everyone, I'm Suzuki, a front-end developer for FRESH! at AbemaTV Inc. This...

https://developers.cyberagent.co.jp/blog/archives/1010/