Infrastructure & DevOps
Sharing experiences in infrastructure setup, migration, and monitoring.
What is Manticore Search? Configuration, Setup, and Practical Application
Hello. I’m Jeongil Jeong, working as a backend developer at a PropTech platform. “We need a search feature.” When you hear this, one name probably pops into most developers’ heads. That is Elasticsearch. Thanks to its powerful features and rich ecosystem, it seems to be considered the industry stand...
November 25, 2025
From No Dev Server to GitOps: My Journey of Introducing Kubernetes from Scratch
Hello. I’m Jeong Jeong-il, a 3rd-year backend developer working at a PropTech platform. Today, I’d like to share the process of migrating our MSA services, which were running on a legacy Docker environment, to a Kubernetes-based infrastructure, a journey I proposed and built from scratch. The bigges...
July 24, 2025
From On-Premises to Cloud - A Zero-Downtime Migration Story
Hello, I’m Jeong Jeong-il, a 3rd-year backend developer working at a PropTech platform. In this post, I’d like to share my experience migrating a monolithic server operating in an on-premises environment to the cloud (AWS), and the infrastructure automation experience using Terraform during this pro...
July 10, 2025
Service Failures Should Be Detected Before Users Report Them - Building Our In-House Monitoring System
Hello. I’m Jeong Jeongil, a 3rd-year backend developer working at a proptech platform. After joining the team in March this year, one thing that stood out was that there were areas for improvement in the team’s monitoring system. Although we were using AWS CloudWatch before, there was an issue that ...
July 4, 2025