docker-network-connect(1)



DOCKER(1)                                                            DOCKER(1)

NAME
       docker-network-connect - Connect a container to a network

SYNOPSIS
       docker network connect [OPTIONS] NETWORK CONTAINER

DESCRIPTION
       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 same network.

              $ docker network connect multi-host-network container1

       You can also use the docker run --network=<network-name> option to
       start a container and immediately connect it to a network.

              $ docker run -itd --network=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.  A container connects to its configured networks when it runs.

       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
       command. Use docker network disconnect to remove a container from the
       network.

       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 this way.

       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 overlay networks.

OPTIONS
       --alias=[]
           Add network-scoped alias for the container

       --ip=""
           IPv4 address (e.g., 172.30.100.104)

       --ip6=""
           IPv6 address (e.g., 2001:db8::33)

       --link=
           Add link to another container

       --link-local-ip=[]
           Add a link-local address for the container

SEE ALSO
       docker-network(1)

Docker Community                   Sep 2017                          DOCKER(1)

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