diff --git a/upup/models/cloudup/resources/addons/external-dns.addons.k8s.io/k8s-1.19.yaml.template b/upup/models/cloudup/resources/addons/external-dns.addons.k8s.io/k8s-1.19.yaml.template
index 9caf028c159e7..301da472a7729 100644
--- a/upup/models/cloudup/resources/addons/external-dns.addons.k8s.io/k8s-1.19.yaml.template
+++ b/upup/models/cloudup/resources/addons/external-dns.addons.k8s.io/k8s-1.19.yaml.template
@@ -63,6 +63,10 @@ spec:
           value: "127.0.0.1"
         - name: KUBERNETES_SERVICE_PORT
           value: "443"
+{{ range $name, $value := DNSControllerEnvs }}
+        - name: {{ $name }}
+          value: {{ $value }}
+{{ end }}
         ports:
         - name: http
           protocol: TCP
diff --git a/upup/pkg/fi/cloudup/template_functions.go b/upup/pkg/fi/cloudup/template_functions.go
index 68f6c1d452446..2af4c894a2dda 100644
--- a/upup/pkg/fi/cloudup/template_functions.go
+++ b/upup/pkg/fi/cloudup/template_functions.go
@@ -815,6 +815,8 @@ func (tf *TemplateFunctions) ExternalDNSArgv() ([]string, error) {
 	switch cloudProvider {
 	case kops.CloudProviderAWS:
 		argv = append(argv, "--provider=aws")
+	case kops.CloudProviderOpenstack:
+		argv = append(argv, "--provider=designate")
 	case kops.CloudProviderGCE:
 		project := cluster.Spec.CloudProvider.GCE.Project
 		argv = append(argv, "--provider=google")