docker-network-connect - connect a container to a network
docker network connect
] NETWORK CONTAINER
Connects a container to a network. You can connect a container by name or by ID.
Once connected, the container can communicate with other containers in the
$ docker network connect multi-host-network container1
You can also use the
docker run --net=<network-name> option to
start a container and immediately connect it to a network.
$ docker run -itd --net=multi-host-network --ip 172.20.88.22 --ip6 2001:db8::8822 busybox
You can pause, restart, and stop containers that are connected to a network.
Paused containers remain connected and can be revealed by a
inspect. When the container is stopped, it does not appear on the network
until you restart it.
If specified, the container's IP address(es) is reapplied when a stopped
container is restarted. If the IP address is no longer available, the
container fails to start. One way to guarantee that the IP address is
available is to specify an
--ip-range when creating the network, and
choose the static IP address(es) from outside that range. This ensures that
the IP address is not given to another container while this container is not
on the network.
$ docker network create --subnet 172.20.0.0/16 --ip-range 172.20.240.0/20 multi-host-network
$ docker network connect --ip 172.20.128.2 multi-host-network container2
To verify the container is connected, use the
docker network inspect
docker network disconnect to remove a container from the
Once connected in network, containers can communicate using only another
container's IP address or name. For
overlay networks or custom plugins
that support multi-host connectivity, containers connected to the same
multi-host network but launched from different Engines can also communicate in
You can connect a container to one or more networks. The networks need not be
the same type. For example, you can connect a single container bridge and
Specify network name
Specify container name
Print usage statement
OCT 2015, created by Mary Anthony ⟨email@example.com⟩