Add topologySpreadConstraints to support scaling of coredns

Signed-off-by: Marc Bachmann <marc.brookman@gmail.com>

Add topologySpreadConstraints to support scaling of coredns
9b35734e · Marc Bachmann · Brad Davidson · e24e1332 · 9b35734e · 9b35734e
Commit 9b35734e authored Oct 02, 2021 by Marc Bachmann Committed by Brad Davidson Oct 05, 2021
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coredns.yaml manifests/coredns.yaml +7 -0

zz_generated_bindata.go pkg/deploy/zz_generated_bindata.go +0 -0

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--- a/manifests/coredns.yaml
+++ b/manifests/coredns.yaml
@@ -109,6 +109,13 @@ spec:
          effect: "NoSchedule"
      nodeSelector:
        beta.kubernetes.io/os: linux
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: kubernetes.io/hostname
+          whenUnsatisfiable: DoNotSchedule
+          labelSelector:
+            matchLabels:
+              k8s-app: kube-dns
      containers:
      - name: coredns
        image: %{SYSTEM_DEFAULT_REGISTRY}%rancher/mirrored-coredns-coredns:1.8.4

--- a/pkg/deploy/zz_generated_bindata.go
+++ b/pkg/deploy/zz_generated_bindata.go