Merge pull request #204 from Jimdo/ktlo-graceful-shutdown

fix: improve default readiness probe config for shutdown

Author: hagaibarel

charts/coredns/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: coredns
-version: 1.39.1
+version: 1.39.2
 appVersion: 1.12.0
 home: https://coredns.io
 icon: https://coredns.io/images/CoreDNS_Colour_Horizontal.png
@@ -20,4 +20,4 @@ type: application
 annotations:
   artifacthub.io/changes: |
     - kind: fixed
-      description: align imagePullSecrets in Deployment and ServiceAccount
+      description: improve default readiness probe config for shutdown

charts/coredns/values.yaml

@@ -118,7 +118,7 @@ servers:
   # Serves a /health endpoint on :8080, required for livenessProbe
   - name: health
     configBlock: |-
-      lameduck 5s
+      lameduck 10s
   # Serves a /ready endpoint on :8181, required for readinessProbe
   - name: ready
   # Required to query kubernetes API for data
@@ -174,9 +174,9 @@ livenessProbe:
 readinessProbe:
   enabled: true
   initialDelaySeconds: 30
-  periodSeconds: 10
+  periodSeconds: 5
   timeoutSeconds: 5
-  failureThreshold: 5
+  failureThreshold: 1
   successThreshold: 1
 
 # expects input structure as per specification https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.11/#affinity-v1-core