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What this article shares with you is about the relationship between docker containers and images. The editor thinks it is very practical, so I share it with you. I hope you can get something after reading this article. Let's take a look at it with the editor.

What is the relationship between docker containers and images? The container is started based on an image, and one or more processes can be run in the container.

You can think of an image as the build or packaging phase of the docker life cycle, while the container is the startup or execution phase. The container starts based on the image. Once the container is started, we can log in to the container to install the software or services we need.

Docker Mirror

Mirroring is the cornerstone of building Docker. Users run their own containers based on images. Mirroring is also a "build" part of the Docker lifecycle. Mirroring is a hierarchical structure based on the federated file system, which is built step by step by a series of instructions. For example: add a file; execute a command; open a window.

You can also use the image as the "source code" of the container. The image is very small, very "portable" and easy to share, store and update.

In fact, when a container service starts, it will be moved to memory, and the boot file system will be unmounted to set aside more memory for disk mirroring. Some files are needed to start the Docker container, and these files can be called Docker images.

Docker container

Docker can help you build and deploy containers, you just need to package your own applications or services into the container. So, the Docker container is: a mirror format; some columns of standard operations; and an execution environment.

Like standard containers, Docker containers are easy to replace, stacked, easy to distribute, and as versatile as possible.

With Docker, we can quickly build an application server, a message bus, a set of utilities, a continuous integration (CI) test environment, or any application, service, or tool. We can build a complete test environment locally, or we can quickly replicate a complex application stack for production or development.

The above is an introduction to the relationship between docker containers and images. The container cloud product is implemented based on docker technology and has tens of thousands of Linux images. Powerful, easy to use. Users only need to run and manage the purchased containers, without having to deal with the complex underlying server maintenance work.

The above is the relationship between the docker container and the image. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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