feat: Add anti affinity to coredns deployment (#249)

Azure · Jan 9, 2019 · d21ecc8 · d21ecc8
1 parent b5dca9a
commit d21ecc8
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/parts/k8s/addons/coredns.yaml b/parts/k8s/addons/coredns.yaml
@@ -100,6 +100,27 @@ spec:
       annotations:
         seccomp.security.alpha.kubernetes.io/pod: docker/default
     spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: k8s-app
+                  operator: In
+                  values:
+                  - kube-dns
+              topologyKey: failure-domain.beta.kubernetes.io/zone
+            weight: 10
+          - podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: k8s-app
+                  operator: In
+                  values:
+                  - kube-dns
+              topologyKey: kubernetes.io/hostname
+            weight: 5
       serviceAccountName: coredns
       tolerations:
         - key: node-role.kubernetes.io/master