Docker 网络是 Docker 容器之间进行通信的桥梁。本教程将带你了解 Docker 网络的基本概念、创建和管理网络的方法。

基本概念

  • 容器网络: 容器网络是 Docker 容器之间进行通信的机制。
  • 桥接网络: 默认的网络模式，容器通过虚拟桥接设备进行通信。
  • 主机网络: 容器直接使用宿主机的网络命名空间。
  • 自定义网络: 可以根据需要创建自定义网络。

创建网络

docker network create -d bridge my_network

这条命令创建了一个名为 my_network 的桥接网络。

连接容器到网络

docker run -d --name my_container --network my_network my_image

这条命令创建了一个名为 my_container 的容器，并将其连接到 my_network 网络。

网络配置

docker network inspect my_network

这条命令可以查看 my_network 网络的详细信息。

网络连接

docker exec -it my_container ping my_container

这条命令可以在 my_container 容器中执行 ping 命令，测试网络连接。

图片示例

Docker 网络架构

扩展阅读

更多关于 Docker 网络的详细信息，请参阅官方文档。

Docker Network Tutorial

Docker networking is the mechanism by which Docker containers communicate with each other. This tutorial will guide you through the basic concepts of Docker networking, as well as how to create and manage networks.

Basic Concepts

  • Container Networking: The mechanism by which Docker containers communicate with each other.
  • Bridge Networking: The default networking mode, where containers communicate through a virtual bridge device.
  • Host Networking: Containers use the host's network namespace directly.
  • Custom Networking: You can create custom networks according to your needs.

Creating a Network

docker network create -d bridge my_network

This command creates a bridge network named my_network.

Connecting a Container to a Network

docker run -d --name my_container --network my_network my_image

This command creates a container named my_container and connects it to the my_network network.

Network Configuration

docker network inspect my_network

This command shows the details of the my_network network.

Network Connection

docker exec -it my_container ping my_container

This command runs the ping command inside the my_container container to test the network connection.

Image Example

Docker Network Architecture

Further Reading

For more detailed information about Docker networking, please refer to the official documentation.