Add topologySpreadConstraints to support scaling of coredns

Signed-off-by: Marc Bachmann <marc.brookman@gmail.com>
2026-08-05 06:49:57 +00:00 · 2021-10-02 04:00:46 +02:00
parent e24e1332fd
commit 9b35734e1a
2 changed files with 8 additions and 1 deletions
--- 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