What image files does docker have?

Docker is an open source application container engine that helps developers package, publish and run applications. In Docker, an image is the building block of an application and contains all the files, dependencies, and configuration information needed to run the application. In the Docker community, there are millions of open source image files available for developers, and these image files are widely used in various application scenarios.

This article will introduce some widely used Docker image files and their uses to help developers better understand Docker application scenarios.

1. Alpine

Alpine is a Docker image file based on a lightweight Linux operating system, which is very popular. This image file is very small, only about 5MB, and is the smallest Docker image file currently known. Alpine image files are widely used to build lightweight Docker containers. It also provides some basic tools and packages, such as bash, curl, gcc, etc., which are sufficient for some simple applications.

2. Nginx

Nginx is a widely used web server software that is also used as a reverse proxy, load balancing, and HTTP caching server. In the Docker community, Nginx image files have become one of the commonly used images, and can be used to build high-performance web applications when combined with other technologies such as WordPress. The advantage of Nginx is that it is very stable, efficient, easy to configure, and can add new functions through plug-ins.

3. Redis

Redis is a memory-based data storage system that is widely used in real-time data caching, ranking, counters, distributed session management, etc. In the Docker community, Redis image files are also very popular. Due to its fast, reliable and easy-to-use characteristics, it is very suitable for building scalable distributed systems.

4. MySQL

MySQL is a popular relational database management system that supports multiple data types, multiple connections, and high performance. In the Docker community, MySQL image files have become one of the preferred image files for developers to build database applications. MySQL containers can be delivered, deployed, and scaled quickly, making MySQL a more convenient solution for developing MySQL applications.

5. Node.js

Node.js is a JavaScript-based backend server technology. It supports high-performance, non-blocking I/O and event-driven programming, which makes it ideal for building real-time web applications. In the Docker community, the Node.js image file is also very popular, and many developers use it to build Node.js web applications and web services.

In short, Docker image files provide many basic software and libraries that are easy for developers to use, which allows them to focus more on application development, thereby liberating them from tedious environment configuration and dependency management. The images introduced in this article include Alpine, Nginx, Redis, MySQL and Node.js, which are widely used image files in the Docker community. These images can be very conveniently used in different application scenarios that developers need.

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