I came across this lecture because I was stuck while building an infrastructure using ECS. I came here to solve only the traffic routing part in ALB, but I ended up watching the whole thing from the beginning because it was more specific, shorter, and concise than I thought. While watching various blogs and videos, I felt that the instructor had a lot of experience in building infrastructure and had thought a lot about practicality. I think even if a famous developer were to teach, he would not fall behind in this part. + (The reason I felt this way is because he not only explained the implementation of simple functions, but also explained the configuration options as much as he knew, and even if he had already implemented it, he tried to share better and new methods, and always considered the cost. And he explained all these processes without any obstacles. No matter how much the lecture was edited and prepared, I couldn't help but feel it.) If anyone wants to know the contents of the lecture list, I highly recommend it. It's a good lecture! As a result, I was able to build the infrastructure I wanted by watching the lecture. I was able to think about the options that can be expanded further. I am familiar with Jenkins and gitaction, so I wonder if I need additional lectures, but I was satisfied enough to think about watching the next lecture. In addition, I made it so that you can proceed without problems by copying and pasting below. There were some very minor typos in the commands, but when that happens, you can solve it by watching the video, so it is not a big problem.