1. Basic Concepts Docker Compose is a Docker tool for defining and running complex applications. With Docker Compose, you can define a multi-container application in a single file, then use a single command to start your application and finish all the preparation work. Docker Compose positions itself as ‘defining and running complex applications with Docker’.

1. Basic Concepts A Dockerfile is a collection of instructions for building a Docker image. Docker reads Dockerfile instructions to build an image automatically. A Dockerfile is similar to a Makefile: both are text files that organize all the instructions in the order the image is built. The command to build a Docker image:

1. Introduction GitLab is an open-source application developed with Ruby on Rails. It implements self-hosted Git project repositories, and public or private projects can be accessed through a web interface. It has features similar to GitHub, and can browse source code, manage defects and comments. It can manage team access

At the moment I use PyCharm as my integrated development tool for both front end and back end. My main stack is JavaScript, CSS, ECMAScript 6, Vue, Python, Django, Mako, and Markdown. Front-end work has been growing steadily lately, and PyCharm seems to be struggling. Atom, Sublime Text, and Visual Studio Code became the candidates; Atom is maintained by GitHub, has better community support, and is more configurable and more fun to play with.

1. Introduction to Atom Atom is a code editor that supports the three major desktop platforms Windows, Mac, and Linux, is completely free, and is open source on GitHub. Go now 1.1 Pros and Cons Main advantages A strong development and maintenance team, an open source project, fast Bug fixes,