Merge pull request #770 from arcivanov/chart_tscs

Add ability to specify topologySpreadConstraints
kubernetes-sigs · Feb 26, 2021 · ca5d05e · ca5d05e
2 parents c159142 + 25193d7
commit ca5d05e
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diff --git a/charts/aws-ebs-csi-driver/templates/controller.yaml b/charts/aws-ebs-csi-driver/templates/controller.yaml
@@ -38,6 +38,13 @@ spec:
         {{- with .Values.tolerations }}
 {{ toYaml . | indent 8 }}
         {{- end }}
+{{- if .Values.topologySpreadConstraints }}
+{{- $tscLabelSelector := dict "labelSelector" ( dict "matchLabels" ( dict "app" "ebs-csi-controller" ) ) }}
+      topologySpreadConstraints:
+        {{- range .Values.topologySpreadConstraints }}
+        - {{ mergeOverwrite . $tscLabelSelector | toJson }}
+        {{- end }}
+{{- end }}
       containers:
         - name: ebs-plugin
           image: {{ .Values.image.repository }}:{{ .Values.image.tag }}

diff --git a/charts/aws-ebs-csi-driver/values.yaml b/charts/aws-ebs-csi-driver/values.yaml
@@ -74,6 +74,20 @@ tolerateAllTaints: true
 tolerations: []
 affinity: {}
 
+# TSCs without the label selector stanza
+#
+# Example:
+#
+# topologySpreadConstraints:
+#  - maxSkew: 1
+#    topologyKey: topology.kubernetes.io/zone
+#    whenUnsatisfiable: ScheduleAnyway
+#  - maxSkew: 1
+#    topologyKey: kubernetes.io/hostname
+#    whenUnsatisfiable: ScheduleAnyway
+
+topologySpreadConstraints: []
+
 # Extra volume tags to attach to each dynamically provisioned volume.
 # ---
 # extraVolumeTags: