Home > Article > Operation and Maintenance > How about docker in practice?
In recent years, with the rapid development of Internet technology and changes in demand, traditional application deployment methods can no longer meet the needs of modern software development. The traditional application deployment method requires manual installation of software and configuration of dependencies, which is prone to problems such as environmental dependencies, inconsistent configurations, and incompatible application versions. In response to these problems, many developers have devoted themselves to the research and practice of containerization technology. As one of the containerization technologies, Docker has received widespread attention and application due to its simplicity, ease of use, rapid construction, and efficient management.
This article mainly introduces the application practice of Docker, including the basic concepts of Docker, Docker installation and deployment, Docker container management, Docker network management, Docker data management, etc., to help beginners better understand and applying Docker technology.
1. Basic concepts of Docker
Docker is a lightweight containerization technology. Based on the technical characteristics of operating system virtualization and container technology, applications can run as if they were running on a local host. Same, running on different operating systems and environments. Docker provides a virtual container that contains all the dependencies and running environment of the application. This container can be started on any host running Docker. Likewise, Docker containers can be created, destroyed, and modified at any time without affecting the host system or other containers.
In Docker, it mainly includes the following concepts:
2. Docker installation and deployment
Docker installation is very simple, the specific operations are as follows:
If you want to deploy Docker on a cloud server, it is recommended to use tools such as Docker Machine or Docker Compose.
3. Docker container management
It is very simple to create, start, stop, delete and other operations of Docker containers. The specific operations are as follows:
In addition, Docker also provides the Docker Compose tool, which can manage multiple Docker containers by writing Docker configuration files. This greatly simplifies the management and deployment of Docker containers.
4. Docker network management
Docker containers can communicate with each other through the network. By default, Docker creates its own network namespace for each container and assigns it an IP address. Docker provides a variety of network modes that can be selected according to your needs.
Docker network related operations are as follows:
In Docker, data can be stored in a data volume inside the container or in a directory on the host. Using data volumes enables data persistence to avoid data loss or corruption.
The related operations of Docker data management are as follows:
Summary:
As an emerging technology, Docker technology makes software development and deployment simpler, more flexible and more efficient. Through the introduction of this article, we have learned about the basic concepts of Docker, Docker installation and deployment, Docker container management, Docker network management, and Docker data management related knowledge. In actual application, we can choose different Docker features to apply according to needs, thereby improving the performance and reliability of the application.
The above is the detailed content of How about docker in practice?. For more information, please follow other related articles on the PHP Chinese website!