Hello. I'm getting started with Prefect v2 and I'm having an error with setting up the Kubernetes Job with Prefect Cloud. I'm trying to configure the Customizations field to modify the output manifest. However, if I write it that way, there is this error while I run the prefect CLI:

$ prefect deployment build ./expenses.py:export_raw_expenses -n export-raw-expenses -t kubernetes -ib kubernetes-job/job --storage-block azure/azure-storage

Found flow 'export-raw-expenses'
Successfully uploaded 2 files to <az://prefect/htoh-prefect>
Traceback (most recent call last):
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/cli/_utilities.py", line 41, in wrapper
    return fn(*args, **kwargs)
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/utilities/asyncutils.py", line 193, in wrapper
    return run_async_in_new_loop(async_fn, *args, **kwargs)
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/utilities/asyncutils.py", line 140, in run_async_in_new_loop
    return anyio.run(partial(__fn, *args, **kwargs))
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/anyio/_core/_eventloop.py", line 70, in run
    return asynclib.run(func, *args, **backend_options)
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 292, in run
    return native_run(wrapper(), debug=debug)
  File "/usr/local/Cellar/python@3.10/3.10.6_1/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/usr/local/Cellar/python@3.10/3.10.6_1/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/base_events.py", line 646, in run_until_complete
    return future.result()
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 287, in wrapper
    return await func(*args)
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/cli/deployment.py", line 477, in build
    infrastructure = await Block.load(infra_block)
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/blocks/core.py", line 514, in load
    return cls._from_block_document(block_document)
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/blocks/core.py", line 415, in _from_block_document
    block = block_cls.parse_obj(block_document.data)
  File "pydantic/main.py", line 521, in pydantic.main.BaseModel.parse_obj
  File "/Users/manhha/Library/Caches/pypoetry/virtualenvs/htoh-prefect-8QVbx3Ri-py3.10/lib/python3.10/site-packages/prefect/blocks/core.py", line 103, in __init__
    super().__init__(*args, **kwargs)
  File "pydantic/main.py", line 341, in pydantic.main.BaseModel.__init__
pydantic.error_wrappers.ValidationError: 1 validation error for KubernetesJob
customizations
  string indices must be integers (type=type_error)

It looks like the string that the system doesn't like the string I input to the Customizations field:

{
  "op": "add",
  "path": "/spec/template/spec/containers/0/imagePullPolicy",
  "value": "Always"
}

I tried to consult the doc but it only mention the JSON 6902 patch, but nothing more. There is however an example in the Github repo of Prefect. Do you know if I'm missing something?

Hello! If you’ve not already seen in the Prefect repo, I think this is likely connected to an issue we’re working on a fix for. You should be able to follow progress here: https://github.com/PrefectHQ/prefect/issues/6460

Thank you 👌. I didn't looked into it indeed. Will check it out.