In a Docker Compose file, the network
key is used to specify the networks that containers should connect to. By default, containers are connected to the default
network.
There are three types of networks that can be used with Compose: bridge, host, and none.
The default network type is bridge. This network type creates a private network internal to the host.
Containers on a bridge network can communicate with each other without exposing their ports to the host.
The host network type removes the isolation between the container and the Docker host, and uses the host’s networking directly.
This means that the containers on the host network can communicate with each other without exposing their ports to the outside world.
The none network type is used to create a container that is not connected to any network.
This can be useful for development or testing purposes.
In order to connect containers with each other, they must be on the same network.
The network
key can be used to specify the network that containers should connect to. By default, containers are connected to the default
network.
If you want to connect containers to multiple networks, you can use the networks
key. This key takes an array of network names.
In a Compose file, the network
key is used to specify the networks that containers should connect to. By default, containers are connected to the default
network.
There are three types of networks that can be used with Compose: bridge, host, and none.
The default network type is bridge. This network type creates a private network internal to the host.
Containers on a bridge network can communicate with each other without exposing their ports to the host.
To create a bridge network, use the docker network create
command.
$ docker network create --driver bridge my-bridge-network
You can also create a bridge network using the networks
key in a Compose file.
version: '3'
networks:
my-bridge-network:
driver: bridge
The host network type removes the isolation between the container and the Docker host, and uses the host’s networking directly.
This means that the containers on the host network can communicate with each other without exposing their ports to the outside world.
To create a host network, use the docker network create
command.
$ docker network create --driver host my-host-network
You can also create a host network using the networks
key in a Compose file.
version: '3'
networks:
my-host-network:
driver: host
The none network type is used to create a container that is not connected to any network.
This can be useful for development or testing purposes.
To create a none network, use the docker network create
command.
$ docker network create --driver none my-none-network
You can also create a none network using the networks
key in a Compose file.
version: '3'
networks:
my-none-network:
driver: none
In order to connect containers with each other, they must be on the same network.
The network
key can be used to specify the network that containers should connect to. By default, containers are connected to the default
network.
If you want to connect containers to multiple networks, you can use the networks
key. This key takes an array of network names.
version: '3'
services:
web:
image: nginx
ports:
- "80:80"
networks:
- my-bridge-network
- my-host-network
- my-none-network
In a Compose file, the network
key is used to specify the networks that containers should connect to. By default, containers are connected to the default
network.
There are three types of networks that can be used with Compose: bridge, host, and none.
The default network type is bridge. This network type creates a private network internal to the host.
Containers on a bridge network can communicate with each other without exposing their ports to the host.
To create a bridge network, use the docker network create
command.
$ docker network create --driver bridge my-bridge-network
You can also create a bridge network using the networks
key in a Compose file.
version: '3'
networks:
my-bridge-network:
driver: bridge
The host network type removes the isolation between the container and the Docker host, and uses the host’s networking directly.
This means that the containers on the host network can communicate with each other without exposing their ports to the outside world.
To create a host network, use the docker network create
command.
$ docker network create --driver host my-host-network
You can also create a host network using the networks
key in a Compose file.
version: '3'
networks:
my-host-network:
driver: host
The none network type is used to create a container that is not connected to any network.
This can be useful for development or testing purposes.
To create a none network, use the docker network create
command.
$ docker network create --driver none my-none-network
You can also create a none network using the networks
key in a Compose file.
version: '3'
networks:
my-none-network:
driver: none
In order to connect containers with each other, they must be on the same network.
The network
key can be used to specify the network that containers should connect to. By default, containers are connected to the default
network.
If you want to connect containers to multiple networks, you can use the networks
key. This key takes an array of network names.
version: '3'
services:
web:
image: nginx
ports:
- "80:80"
networks:
- my-bridge-network
- my-host-network
- my-none-network