I’m not sure if the --net
option ever existed but it’s now --network
.
From docker run --help
:
--network string Connect a container to a network (default "default")
As @maxm notes you can find the network name, with the DIR prefix of the compose project directory, then simply run it as you were trying:
$ docker run --network=DIR_compose_network <image for the job>
I wanted to connect on run as my container is transient (running tests) so I can’t use a second docker network
command in time before it quits.
e.g. for my docker composition in a “dev” folder with no network name specified so uses the docker-compose “default” name, therefore I get the name dev_default
.
docker network ls
NETWORK ID NAME DRIVER SCOPE
2c660d9ed0ba bridge bridge local
b81db348e773 dev_default bridge local
ecb0eb6e93a5 host host local
docker run -it --network dev_default myimage
This connects the new docker container to the existing docker-compose network.