Hey! How can I mount volumes on a specific flow without affecting the global configuration of docker agent as described here https://docs.prefect.io/orchestration/agents/docker.html#mounting-volumes

Hey @marios, it doesn’t seem like you can because we use

docker-py

and mounts are done in 2 parts. First is the

host_config

and second is the

volumes

. It looks like this:

client.api.create_container(
    'busybox', 'ls', volumes=['/mnt/vol1', '/mnt/vol2'],
    host_config=client.api.create_host_config(binds=[
        '/home/user1/:/mnt/vol2',
        '/var/www:/mnt/vol1:ro',
    ])
)

The

DockerRun

run configuration from Prefect lets you pass in a

host config

, so that part is fine, but it still needs to be added in the

volumes

, which comes from the agent unfortunately. This might be worth opening a ticket for and seeing if we can pass volumes through the RunConfig as well. I’ll dig in if this is feasible.

Thanks @Kevin Kho!

@Marvin archive “Mount Volumes to Docker RunConfig”