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add arch, os, and provisioner anti-affinities for the karpenter deployment #468

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merged 3 commits into from
Jun 23, 2021
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add arch, os, and provisioner anti-affinities for the karpenter deployment #468

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a85395c
add arch, os, and provisioner anti-affinities for the karpenter deplo…
bwagner5 Jun 22, 2021
9976a1d
remove provisioner anti-affinity
bwagner5 Jun 22, 2021
b2b1443
remove arch affinity
bwagner5 Jun 22, 2021
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15 changes: 12 additions & 3 deletions charts/karpenter/templates/controller/deployment.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -59,10 +59,19 @@ spec:
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.controller.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- if .Values.controller.affinity }}
{{- toYaml .Values.controller.affinity | nindent 8 }}
{{- else }}
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
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I don't actually think we want this. Imagine if someone wants to run karpenter in a management cluster, who's nodes are themselves managed by a separate karpenter installation.

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Interesting, I hadn't considered the case of a management cluster using karpenter... But a karpenter installation should never be hosted on a node provisioned by the installation, right? I can remove this one since it's not super important for people trying it out right now, only slightly annoying when developing.

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I went ahead and removed this one.

- key: kubernetes.io/os
operator: In
values:
- linux
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+1

{{- end }}
{{- with .Values.controller.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
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15 changes: 12 additions & 3 deletions charts/karpenter/templates/webhook/deployment.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,19 @@ spec:
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.webhook.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- if .Values.webhook.affinity }}
{{- toYaml .Values.webhook.affinity | nindent 8 }}
{{- else }}
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/os
operator: In
values:
- linux
{{- end }}
{{- with .Values.webhook.tolerations }}
tolerations:
{{- toYaml . | nindent 8 }}
Expand Down