Include labelSelector for affinity and topologySpreadConstraints

kubernetes-sigs · Nov 1, 2024 · bc43727 · bc43727
1 parent b637870
commit bc43727
Show file tree

Hide file tree

Showing 3 changed files with 71 additions and 2 deletions.
diff --git a/charts/external-dns/CHANGELOG.md b/charts/external-dns/CHANGELOG.md
@@ -22,6 +22,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Ability to configure `imagePullSecrets` via helm `global` value ([#4667](https://github.com/kubernetes-sigs/external-dns/pull/4667)) _@jkroepke_
 
+### Fixed
+
+- Fixed automatic addition of pod selector labels to `affinity` and `topologySpreadConstraints` if not defined. _@pvickery-ParamountCommerce_
+
 ## [v1.15.0] - 2023-09-10
 
 ### Changed

diff --git a/charts/external-dns/templates/_helpers.tpl b/charts/external-dns/templates/_helpers.tpl
@@ -93,3 +93,13 @@ The image to use for optional webhook sidecar
 {{- printf "%s:%s" .repository .tag }}
 {{- end }}
 {{- end }}
+
+{{/*
+The pod affinity default label Selector
+*/}}
+
+{{- define "external-dns.labelSelector" -}}
+labelSelector:
+  matchLabels:
+{{ include "external-dns.selectorLabels" . | indent 4 }}
+{{- end }}
diff --git a/charts/external-dns/templates/deployment.yaml b/charts/external-dns/templates/deployment.yaml
@@ -1,3 +1,4 @@
+{{- $defaultSelector := (include "external-dns.labelSelector" $ ) | fromYaml -}}
 {{- $providerName := tpl (include "external-dns.providerName" .) $ }}
 apiVersion: apps/v1
 kind: Deployment
@@ -197,11 +198,65 @@ spec:
       {{- end }}
       {{- with .Values.affinity }}
       affinity:
-        {{- toYaml . | nindent 8 }}
+      {{- with .podAffinity }}
+        podAffinity:
+          {{- with .preferredDuringSchedulingIgnoredDuringExecution }}
+          preferredDuringSchedulingIgnoredDuringExecution:
+          {{- range . }}
+            podAffinityTerm:
+            {{- if dig "podAffinityTerm" "labelSelector" nil . }}
+              {{- toYaml .podAffinityTerm | nindent 14 }}
+            {{- else }}
+              {{- (merge $defaultSelector .podAffinityTerm) | toYaml | nindent 14 }}
+            {{- end }}
+          {{- end }}
+          {{- end }}
+          {{- with .requiredDuringSchedulingIgnoredDuringExecution }}
+          requiredDuringSchedulingIgnoredDuringExecution:
+          {{- range . }}
+            {{- if dig "labelSelector" nil . }}
+              {{- toYaml . | nindent 12 }}
+            {{- else }}
+              {{- (merge $defaultSelector .) | toYaml | nindent 12 }}
+            {{- end }}
+          {{- end }}
+          {{- end }}
+      {{- end }}
+      {{- with .podAntiAffinity }}
+        podAntiAffinity:
+          {{- with .preferredDuringSchedulingIgnoredDuringExecution }}
+          preferredDuringSchedulingIgnoredDuringExecution:
+          {{- range . }}
+            podAffinityTerm:
+            {{- if dig "podAffinityTerm" "labelSelector" nil . }}
+              {{- toYaml .podAffinityTerm | nindent 14 }}
+            {{- else }}
+              {{- (merge $defaultSelector .podAffinityTerm) | toYaml | nindent 14 }}
+            {{- end }}
+          {{- end }}
+          {{- end }}
+          {{- with .requiredDuringSchedulingIgnoredDuringExecution }}
+          requiredDuringSchedulingIgnoredDuringExecution:
+          {{- range . }}
+            {{- if dig "labelSelector" nil . }}
+              {{- toYaml . | nindent 12 }}
+            {{- else }}
+              {{- (merge $defaultSelector .) | toYaml | nindent 12 }}
+            {{- end }}
+          {{- end }}
+          {{- end }}
+      {{- end }}
       {{- end }}
       {{- with .Values.topologySpreadConstraints }}
       topologySpreadConstraints:
-        {{- toYaml . | nindent 8 }}
+        {{- range . }}
+        - {{ toYaml . | nindent 10 | trim }}
+          {{- if not (hasKey . "labelSelector") }}
+          labelSelector:
+            matchLabels:
+              {{- include "external-dns.selectorLabels" $ | nindent 12 }}
+          {{- end }}
+        {{- end }}
       {{- end }}
       {{- with .Values.tolerations }}
       tolerations: