Merge pull request #7492 from grupozap/coredns_missing_dir_workaround

fix(addons/coredns.addons.k8s.io) Workaound to stop coredns crashing on 1.3.1 version

upup/models/cloudup/resources/addons/coredns.addons.k8s.io/k8s-1.12.yaml.template

@@ -171,6 +171,9 @@ spec:
             memory: {{ KubeDNS.MemoryRequest }}
         args: [ "-conf", "/etc/coredns/Corefile" ]
         volumeMounts:
+        # Workaround for 1.3.1 bug, can be removed after bumping to 1.4+. See: https://github.com/coredns/coredns/pull/2529
+        - name: tmp
+          mountPath: /tmp
         - name: config-volume
           mountPath: /etc/coredns
           readOnly: true
@@ -208,6 +211,9 @@ spec:
             scheme: HTTP
       dnsPolicy: Default
       volumes:
+        # Workaround for 1.3.1 bug, can be removed after bumping to 1.4+. See: https://github.com/coredns/coredns/pull/2529
+        - name: tmp
+          emptyDir: {}
         - name: config-volume
           configMap:
             name: coredns

upup/pkg/fi/cloudup/bootstrapchannelbuilder.go

@@ -283,7 +283,7 @@ func (b *BootstrapChannelBuilder) buildAddons() *channelsapi.Addons {
 
 		{
 			key := "coredns.addons.k8s.io"
-			version := "1.3.0-kops.2"
+			version := "1.3.1"
 
 			{
 				location := key + "/k8s-1.12.yaml"