<@ULVA73B9P>. I am trying to install multiple pref...
# ask-marvin
a
@Marvin. I am trying to install multiple prefect-workers in the same namespace using the helm chart in Kubernetes, but I am getting the following error:
Copy code
Error: INSTALLATION FAILED: Unable to continue with install: ServiceAccount "prefect-worker" in namespace "test-worker" exists and cannot be imported into the current release: invalid ownership metadata; annotation validation error: key "<http://meta.helm.sh/release-name|meta.helm.sh/release-name>" must equal "prefect-worker-1": current value is "worker-mitch-test"
(base)
(edited)
m
It appears there’s an issue with my tool searches. Let’s work through the problem step-by-step anyway. The error you're encountering occurs because Helm detects that a ServiceAccount with the same name already exists in the namespace and is not associated with the current release. You'll need to create a unique ServiceAccount for each worker or ensure the existing ServiceAccount is managed by Helm. Here's how you can approach this: 1. Create Unique Release Names and Service Accounts: When installing multiple workers, use unique release names and ensure each worker's Helm chart values specify a unique ServiceAccount name. 2. Modify the Helm Chart Values: Update the
values.yaml
to specify different ServiceAccount names for each worker. Example
values.yaml
modifications:
Copy code
yaml
serviceAccount:
  create: true
  name: unique-worker-sa
worker:
  ...
For each worker, you should have a unique `name`:
unique-worker-sa1
,
unique-worker-sa2
, etc. 3. Install Helm Charts with Unique Names: Use different release names for each installation of the Helm chart. Commands:
Copy code
sh
helm install worker1 prefect-helm/prefect --namespace test-worker -f values-worker1.yaml
helm install worker2 prefect-helm/prefect --namespace test-worker -f values-worker2.yaml
Ensure each
values-worker*.yaml
has a distinct ServiceAccount name. 4. Helm Chart Templates Fix: Alternatively, to avoid specifying each
values.yaml
, modify the Helm templates to auto-generate unique ServiceAccount names. In the `templates/serviceaccount.yaml`:
Copy code
yaml
metadata:
  name: {{ include "prefect.fullname" . }}-sa-{{ .Release.Name }}
  labels:
    {{ include "prefect.labels" . | nindent 4 }}
  annotations:
    "<http://meta.helm.sh/release-name|meta.helm.sh/release-name>": {{ .Release.Name | quote }}
    "<http://meta.helm.sh/release-namespace|meta.helm.sh/release-namespace>": {{ .Release.Namespace | quote }}
This will ensure that each ServiceAccount is unique to its Helm release. Hopefully, this helps resolve the conflict, and you can have multiple workers running in the same Kubernetes namespace. For more information: * Helm Docs * Prefect Kubernetes Deployment Docs