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With 1.9, is there a way to start a container directly with two or more network interfaces?
You can do it after the container is started with "docker network connect", but it means the process is already running and might miss the creation of the new one.
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You can create multiple networks with Docker and add containers to one or more networks. Containers can communicate within networks but not across networks. A container with attachments to multiple networks can connect with all of the containers on all of those networks.
Multiple network interfaces let you create configurations in which an instance connects directly to several VPC networks. Each instance can have up to 8 interfaces, depending on the instance's type. For more information, see Maximum number of interfaces.
It's ok to have multiple processes, but to get the most benefit out of Docker, avoid one container being responsible for multiple aspects of your overall application. You can connect multiple containers using user-defined networks and shared volumes.
When you connect an existing container to a different network using docker network connect , you can use the --ip or --ip6 flags on that command to specify the container's IP address on the additional network. In the same way, a container's hostname defaults to be the container's ID in Docker.
This question is top doing a search regarding docker and multiple network interfaces. Although is not the required version in the question I leave here some info:
With Docker 1.12+ it's possible to add more than one network interface to a docker container, but it is needed to create the container first and then attach the second (and subsequence) network NICs prior to start the container:
$ docker create --network=network1 --name container_name containerimage:latest $ docker network connect network2 container_name $ docker start container_name It is needed to create the networks first:
$ docker network create --driver=bridge network1 --subnet=172.19.0.0/24 $ docker network create --driver=bridge network2 --subnet=172.19.1.0/24 Also, you can start the container attaching the dockerhost network interfaces by using the --network=host argument in docker run:
$ docker run --net=host containerimage:latest If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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