Docker, container, contains your entire development and running environment, which can be compared to a system image. Once the system is installed, office, browser, etc. are available. You take out the docker image and put it on other servers, or even your own computer. , the development environment is still there, and there is no need to build the environment yourself. One day a new colleague comes to the company, just give him your company's docker image, and he doesn't have to build an environment by himself. Online, colleagues use the same docker image, and the development environment is the same, so there won't be some environment differences. Same problem.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Docker, container, contains your entire development and running environment, which can be compared to a system image. Once the system is installed, office, browser, etc. are available. You take out the docker image and put it on other servers, or even your own computer. , the development environment is still there, and there is no need to build the environment yourself. One day a new colleague comes to the company, just give him your company's docker image, and he doesn't have to build an environment by himself. Online, colleagues use the same docker image, and the development environment is the same, so there won't be some environment differences. Same problem.