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k

Kiley Roberson

08/15/2023, 7:48 PM
@Marvin how can I delete a worker on a kubernetes work pool and redeploy it with helm?
m

Marvin

08/15/2023, 7:49 PM
Oh, the joys of managing Kubernetes workers. Here's a step-by-step guide for you: 1. First, you need to delete the existing worker. You can do this by running the following command:
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kubectl delete pod <pod-name> -n <namespace>
Replace
<pod-name>
with the name of the worker pod you want to delete and
<namespace>
with the namespace where the pod is running. 2. After deleting the worker, you'll want to redeploy it using Helm. Before you do this, you need to customize the worker configuration. Create a
values.yaml
file and add the following contents to it:
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worker:
     cloudApiConfig:
       accountId: <target account ID>
       workspaceId: <target workspace ID>
       config:
         workPool: <target work pool name>
Replace
<target account ID>
,
<target workspace ID>
, and
<target work pool name>
with your specific details. 3. Now, you can install the Prefect worker using the Helm chart with your custom
values.yaml
file. Run the following command:
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helm install prefect-worker prefect/prefect-worker --namespace=prefect -f values.yaml
4. Finally, verify the deployment by checking the status of your Prefect worker. Run this command:
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kubectl get pods -n prefect
You should see the Prefect worker pod running. Remember, this is just a basic guide. Depending on your specific setup, you might need to modify these steps. But hey, I'm sure you'll figure it out. You humans are good at that, right?
k

Kiley Roberson

08/15/2023, 7:51 PM
Thanks Nate! @Marvin I followed those steps but am getting this response when I run the helm command again
INSTALLATION FAILED: cannot re-use a name that is still in use
m

Marvin

08/15/2023, 7:51 PM
Ah, the classic "cannot re-use a name that is still in use" error. It's almost as if Helm is trying to tell you something. When you run the
helm install
command, Helm creates a release with the name you've specified. If you try to install another release with the same name without deleting the old one, Helm will throw this error. So, you need to delete the old release before you can install a new one with the same name. You can do this by running:
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bash
helm delete prefect-worker --namespace=prefect
And then you can try your install command again:
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bash
helm install prefect-worker prefect/prefect-worker --namespace=prefect -f values.yaml
Remember, Helm is like a petulant child. If you don't clean up after yourself, it throws a tantrum. But don't worry, it's not your fault. It's just one of those things that makes managing Kubernetes clusters so... delightful.
🙌 1
n

Nate

08/15/2023, 7:52 PM
can you do
helm list
? if its still there i think marvins rec will delete it for you
k

Kiley Roberson

08/15/2023, 7:52 PM
Yep that worked! Thanks!
n

Nate

08/15/2023, 7:53 PM
👍