Short answer: there isn’t a built-in “copy pool” command. You’ll recreate a new pool with the same type and base job template, then (optionally) copy concurrency limits and queues. Here’s a reliable way to clone

ecs-pool

to a new pool (e.g.,

ecs-pool-copy

). 1) Get the current pool’s details (type + base job template)

prefect work-pool inspect "ecs-pool"

- Note the pool

type

(for ECS it’s typically

ecs

). - Copy the “Base job template” section into a file, e.g.

ecs-base.json

. Tip: If you prefer to export it programmatically, you can use the client:

import asyncio, json
from prefect.client.orchestration import get_client

async def main():
    async with get_client() as client:
        pool = await client.read_work_pool_by_name("ecs-pool")
        with open("ecs-base.json", "w") as f:
            json.dump(pool.base_job_template, f, indent=2)
        print("type:", pool.type)
        print("concurrency_limit:", pool.concurrency_limit)
        print("description:", pool.description)

asyncio.run(main())

2) Create the new pool with the same type and base job template

prefect work-pool create "ecs-pool-copy" --type ecs --base-job-template ecs-base.json

- If your local environment doesn’t recognize the ECS type, run with AWS extras installed:

uv run --with 'prefect[aws]' prefect work-pool create "ecs-pool-copy" --type ecs --base-job-template ecs-base.json

3) Copy over limits/metadata (if you use them)

prefect work-pool update "ecs-pool-copy" --concurrency-limit <LIMIT> --description "..."

4) (Optional) Recreate the queues from the old pool - List queues on the original pool:

prefect work-queue ls -p "ecs-pool" --verbose

- For each queue you want to copy, create it in the new pool (preserving limits/priority if needed):

prefect work-queue create "<queue-name>" -p "ecs-pool-copy" --limit <LIMIT> --priority <PRIORITY>

5) Start a worker for the new pool when you’re ready

prefect worker start --pool "ecs-pool-copy"

Would you like me to provide a small script that copies the pool and all its queues end-to-end? If so, what would you like the new pool to be named?