DodoApp: Support dev virtual machines

Change-Id: Ib7641adb5be477bdde7cd9a06df4b45aa65a1c01
diff --git a/core/installer/values-tmpl/dodo-app-instance.cue b/core/installer/values-tmpl/dodo-app-instance.cue
index e0d6906..ad20ac7 100644
--- a/core/installer/values-tmpl/dodo-app-instance.cue
+++ b/core/installer/values-tmpl/dodo-app-instance.cue
@@ -5,6 +5,7 @@
 input: {
 	repoAddr: string
 	repoHost: string
+	branch: string
 	gitRepoPublicKey: string
 	// TODO(gio): auto generate
 	fluxKeys: #SSHKey
@@ -58,7 +59,7 @@
 		}
 		spec: {
 			interval: "1m0s"
-			ref: branch: "dodo"
+			ref: branch: input.branch
 			secretRef: name: "app"
 			timeout: "60s"
 			url: input.repoAddr