Explicitly set default dnsmasq min-port in kube-dns to a sane value to mitigate lookup failure under heavy load. (#1447)

Author: tyrannasaurusbanks

core/controlplane/config/templates/cloud-config-controller

@@ -3931,6 +3931,7 @@ write_files:
                 - -restartDnsmasq=true
                 - --
                 - -k
+                - --min-port=1024
                 - --cache-size=1000
                 - --server=/cluster.local/{{.DNSServiceIP}}
                 - --server=/in-addr.arpa/{{.DNSServiceIP}}