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fix: mount tmp emptyDir to stop CoreDNS restarts #949

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Apr 4, 2019
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fix: mount tmp emptyDir to stop CoreDNS restarts #949

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81c97ff
revert: skip dns-liveness restarts check for k8s 1.14 (#931)
mboersma Apr 4, 2019
bdc6765
fix: add tmp emptyDir to work around CoreDNS 1.3.1 restarting
mboersma Apr 4, 2019
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4 changes: 4 additions & 0 deletions parts/k8s/addons/coredns.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -149,6 +149,8 @@ spec:
- name: config-volume
mountPath: /etc/coredns
readOnly: true
- name: tmp
mountPath: /tmp
ports:
- containerPort: 53
name: dns
Expand Down Expand Up @@ -178,6 +180,8 @@ spec:
readOnlyRootFilesystem: true
dnsPolicy: Default
volumes:
- name: tmp
emptyDir: {}
- name: config-volume
configMap:
name: coredns
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2 changes: 1 addition & 1 deletion test/e2e/kubernetes/kubernetes_test.go
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Expand Up @@ -1465,7 +1465,7 @@ var _ = Describe("Azure Container Cluster using the Kubernetes Orchestrator", fu

Describe("after the cluster has been up for awhile", func() {
It("dns-liveness pod should not have any restarts", func() {
if !eng.HasNetworkPolicy("calico") && !common.IsKubernetesVersionGe(eng.ExpandedDefinition.Properties.OrchestratorProfile.OrchestratorVersion, "1.14.0") {
if !eng.HasNetworkPolicy("calico") {
pod, err := pod.Get("dns-liveness", "default")
Expect(err).NotTo(HaveOccurred())
running, err := pod.WaitOnReady(retryTimeWhenWaitingForPodReady, 3*time.Minute)
Expand Down