Error saying network vme int not manually attachable

Question

I'm trying to initialize a database schema in a docker swarm.

The swarm has these networks:

$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
...
b7dptlu8zyqa        vme_int         overlay             swarm
...

The command I run is

docker run --rm --network vme_internal app:0.1 db upgrade

and i'm getting the following error

docker: Error response from daemon: Could not attach to network vme_internal:
rpc error: code = 7 desc = network vme_internal not manually attachable.

Answer 1

Configure the attachable property using the composer file.

networks:
  mynet1:
    driver: overlay
    attachable: true

Use the docker network create to create a network and make it attachable.

docker network create --driver overlay --attachable my-overlay-network