My child loves the ajitama from the ramen shop and requested to have it at home. I bought several kinds of ajitama at the supermarket, but none of them satisfied me, either because they did not taste like ramen noodles in the first place, …

Goroutine Leak The Go language is a fascinating language because it is so easy to create goroutines (like threads). However, since the goroutine is executed separately from the main flow, it was unnoticed when the goroutine process stopped…

This is a way to notify external parties such as Slack or email when an error occurs in a program in GCP's Kubernetes (GKE). You do not have to implement your own error detection mechanism, only GCP settings can do this. How it works When …

There are times when you have many tasks that you want to process in parallel, but executing all of them in parallel would be too heavy, so you want to specify the number of tasks to be executed concurrently. I am ashamed to admit that I d…

I usually use puppeteer for web crawling and I use Docker to run puppeteer. I had to add a crawl item and when I modified the program and built and ran it on Docker, it did not work with the following error. /node_modules/puppeteer/.local-…