Hi, I need help in deployment while moving fromPrefect 2 to Prefect 3. Here is my deployment in prefect 2 : We have created a docker image for our flows and store it in our private nexus repo. Used following code to cretae abd save the docker def set_docker_container(image_name: str, image_version: str, repo_url: str, environment: str): docker_container = DockerContainer( image=repo_url + image_name + ":" + image_version, image_pull_policy="ALWAYS", image_registry=DockerRegistry.load(image_name + "-registry"), volumes=["//var/run/docker.sock:/var/run/docker.sock"] ) docker_container.save(image_name + "-container-" + environment, overwrite=True) deployment = Deployment.build_from_flow( flow=flow, name=flow_name + "-deployment" + "-" + env, work_queue_name="claimsheroqueue-" + env, work_pool_name="agent-" + env, infrastructure=DockerContainer.load(args.image_name + "-container-" + env) ) deployment.apply() Now, when I move to Prefect 3.0 and use deploy() method on the flow like below, I am getting following error "Work pool 'agent-dev' does not support custom Docker images. Please use a work pool with an

image

variable in its base job template or specify a remote storage location for the flow with

.from_source

. If you are attempting to deploy a flow to a local process work pool, consider using

flow.serve

instead." flow.deploy( name=flow_name + "-deployment" + "-" + env, work_queue_name="claimsheroqueue-" + env, work_pool_name="agent-" + env, build="False", image=args.repo_url + args.image_name + ":" + args.image_version ) Is it not possible to deploy the flows which are in custom docker image in private repo in Prefect 3.0? Note : My work pool is of type "Prefect Agent"

Hi Nitin, It’s possible. You’ll need to use a work pool with a worker that matches it instead of an agent. Check out the docs on work pools here - any type except a

Process

or

Prefect Managed

work pool will support a custom Docker image. You can see the docs on workers here.