Docker Networks: Connect Docker Containers #docker #network #devops #software

Docker networks are essentially highways connecting Docker containers, allowing them to communicate with each other. Think of them as roads in a city, each designed for specific traffic types and purposes.

There are different types of Docker networks:

Bridge network: It's like a private road within a single building. By default, when you run a container, it is on this private network. Containers on the same bridge can communicate with each other, but they are isolated from other networks.

Host network: imagine a container going out onto the public road. Using the host network, a container shares network space with the Docker host. This means it has wider access but less isolation.

Overlay network: It's like a network of highways connecting different buildings. Essential for container orchestrators, overlay networks allow containers on different Docker hosts to communicate seamlessly.

Macvlan Network: It's like giving a container its own car with a unique license plate. Containers get their own MAC addresses, making them appear as individual devices on the network, ideal for specific legacy applications.

No Networking: It's basically a container in a bunker with no windows or doors to the outside world. It is completely isolated, without any network access, which can be crucial for security in certain situations.

Frind Francesco: https://francescociulla.com