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<@ULVA73B9P> can you provide example worker helm c...
# marvin-in-the-wild
a
@Marvin can you provide example worker helm chart values when using the server (not cloud or self hosted) version of prefect server?
m
The following steps outline how to set up a worker using the Prefect Server (not Prefect Cloud or self-hosted) with a Helm chart: 1. Add the Prefect Helm repository to your Helm client:
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shell
helm repo add prefect <https://prefecthq.github.io/prefect-helm>
helm repo update
2. Create a namespace in your Kubernetes cluster for the Prefect worker:
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shell
kubectl create namespace prefect
3. Create a values.yaml file to customize the Prefect worker configuration. Unfortunately, the excerpt does not provide specific values for the 
values.yaml
file when using Prefect Server. Please follow the link to Prefect Kubernetes Deployment Guide for detailed instructions and examples of worker Helm chart values when using Prefect Server. Remember, when using Prefect Server, you must ensure the Helm chart values are compatible with it and not configured for Prefect Cloud or a self-hosted setup.
a
@Marvin https://github.com/PrefectHQ/prefect-helm/tree/main/charts/prefect-worker#configuring-a-worker-for-prefect-server
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worker:
  apiConfig: server
  config:
    workPool: <target work pool name>
  serverApiConfig:
    apiUrl: <dns or ip address of the prefect-server pod here>
This is the suggestion from the documentation but when the worker starts it errors:
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Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper
    return fn(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper
    return call()
           ^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 398, in __call__
    return self.result()
           ^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 284, in result
    return self.future.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 168, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 355, in _run_async
    result = await coro
             ^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/cli/worker.py", line 119, in start
    is_paused = await _check_work_pool_paused(work_pool_name)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/cli/worker.py", line 219, in _check_work_pool_paused
    work_pool = await client.read_work_pool(work_pool_name=work_pool_name)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/client/orchestration.py", line 2402, in read_work_pool
    return pydantic.parse_obj_as(WorkPool, response.json())
                                           ^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/httpx/_models.py", line 762, in json
    return jsonlib.loads(self.content, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
An exception occurred.
m
Your message was too long by 488 tokens - please shorten it and try again. For reference, here's your message at the allowed limit:
https://github.com/PrefectHQ/prefect-helm/tree/main/charts/prefect-worker#configuring-a-worker-for-prefect-server
Copy code
worker:
  apiConfig: server
  config:
    workPool: <target work pool name>
  serverApiConfig:
    apiUrl: <dns or ip address of the prefect-server pod here>
This is the suggestion from the documentation but when the worker starts it errors: ```Traceback (most recent call last): File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper return fn(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper return call() ^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 398, in call return self.result() ^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 284, in result return self.future.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py",
a
@Marvin https://github.com/PrefectHQ/prefect-helm/tree/main/charts/prefect-worker#configuring-a-worker-for-prefect-server
Copy code
worker:
  apiConfig: server
  config:
    workPool: <target work pool name>
  serverApiConfig:
    apiUrl: <dns or ip address of the prefect-server pod here>
This is the suggestion from the documentation but when the worker starts it errors:
Copy code
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper
    return fn(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper
    return call()
           ^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 398, in __call__
    return self.result()
           ^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 284, in result
    return self.future.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 168, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
m
Your message was too long by 61 tokens - please shorten it and try again. For reference, here's your message at the allowed limit:
https://github.com/PrefectHQ/prefect-helm/tree/main/charts/prefect-worker#configuring-a-worker-for-prefect-server
Copy code
worker:
  apiConfig: server
  config:
    workPool: <target work pool name>
  serverApiConfig:
    apiUrl: <dns or ip address of the prefect-server pod here>
This is the suggestion from the documentation but when the worker starts it errors: ```Traceback (most recent call last): File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper return fn(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper return call() ^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 398, in call return self.result() ^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 284, in result return self.future.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal
a
@Marvin https://github.com/PrefectHQ/prefect-helm/tree/main/charts/prefect-worker#configuring-a-worker-for-prefect-server
Copy code
worker:
  apiConfig: server
  config:
    workPool: <target work pool name>
  serverApiConfig:
    apiUrl: <dns or ip address of the prefect-server pod here>
This is the suggestion from the documentation but when the worker starts it errors:
Copy code
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper
    return fn(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper
    return call()
           ^^^^^^
m
It seems there are no open GitHub issues matching the error you've described when configuring a worker for Prefect Server in the PrefectHQ/prefect-helm repository. The configuration snippet you provided from the documentation looks correct:
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yaml
worker:
  apiConfig: server
  config:
    workPool: <target work pool name>
  serverApiConfig:
    apiUrl: <dns or ip address of the prefect-server pod here>
However, the error message you posted is incomplete and does not include the actual error, making it difficult to diagnose the problem. It would be helpful to have the full stack trace or any specific error message to get a better understanding of what's going wrong. Given the information at hand, here are a few general troubleshooting steps you might want to try: 1. Double-check that the 
apiUrl
is correct and the Prefect Server is accessible from the Kubernetes cluster where the worker is deployed. 2. Ensure that the 
workPool
name matches exactly the name of the work pool created within Prefect Server. 3. Review the Kubernetes pod logs for the worker for more detailed error messages. 4. Check the versions of the Prefect Server and the Helm chart to ensure they are compatible. If these suggestions don't resolve the issue, you may want to reach out directly to the Prefect community forum or create a new issue on the prefect-helm GitHub repository with the full error details for more specific assistance.
a
@Marvin the full error trace is : Traceback (most recent call last): File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper return fn(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper return call() ^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 398, in call return self.result() ^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 284, in result return self.future.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 168, in result return self.__get_result() ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result raise self._exception File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 355, in _run_async result = await coro ^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/cli/worker.py", line 119, in start is_paused = await _check_work_pool_paused(work_pool_name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/cli/worker.py", line 219, in _check_work_pool_paused work_pool = await client.read_work_pool(work_pool_name=work_pool_name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/client/orchestration.py", line 2402, in read_work_pool return pydantic.parse_obj_as(WorkPool, response.json()) ^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/httpx/_models.py", line 762, in json return jsonlib.loads(self.content, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/json/__init__.py", line 346, in loads return _default_decoder.decode(s) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/json/decoder.py", line 337, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/json/decoder.py", line 355, in raw_decode raise JSONDecodeError("Expecting value", s, err.value) from None json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0) An exception occurred.
m
Your message was too long by 400 tokens - please shorten it and try again. For reference, here's your message at the allowed limit:
the full error trace is :
Traceback (most recent call last): File "/usr/local/lib/python3.11/site-packages/prefect/cli/_utilities.py", line 41, in wrapper return fn(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/utilities/asyncutils.py", line 255, in coroutine_wrapper return call() ^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 398, in call return self.result() ^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 284, in result return self.future.result(timeout=timeout) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 168, in result return self.__get_result() ^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result raise self._exception File "/usr/local/lib/python3.11/site-packages/prefect/_internal/concurrency/calls.py", line 355, in _run_async
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