Installer: Make Private network optional

Change-Id: Ic7a2e5250a42dc03de2416b1e2a0d1bbca3f010c
diff --git a/core/installer/values-tmpl/cert-manager.cue b/core/installer/values-tmpl/cert-manager.cue
index 4b6154a..40f39c0 100644
--- a/core/installer/values-tmpl/cert-manager.cue
+++ b/core/installer/values-tmpl/cert-manager.cue
@@ -53,7 +53,7 @@
 		chart: charts.certManager
 		dependsOn: [{
 			name: "ingress-public"
-			namespace: ingressPublic
+			namespace: "\(global.pcloudEnvName)-ingress-public"
 		}]
 		values: {
 			fullnameOverride: "\(global.pcloudEnvName)-cert-manager"