AppManager: Add API endpoint to install dodo app

Refactors cue definitions.

Next steps:
* Needs some cleanup, namespace is hard coded ...
* Maybe merge with regular install API
* Support exposing ports across clusters

Change-Id: Ibfc3c3f742b61f2c5874012fe6c77b958eae81d9
diff --git a/core/installer/values-tmpl/gerrit.cue b/core/installer/values-tmpl/gerrit.cue
index 2c57ed5..c783817 100644
--- a/core/installer/values-tmpl/gerrit.cue
+++ b/core/installer/values-tmpl/gerrit.cue
@@ -104,7 +104,7 @@
 		}
 	}
 
-	volumes: {
+	volume: {
 		git: {
 			accessMode: "ReadWriteMany"
 			size: "50Gi"
@@ -246,14 +246,14 @@
 				gitRepositoryStorage: {
 					externalPVC: {
 						use: true
-						name: volumes.git.name
+						name: volume.git.name
 					}
 				}
 				logStorage: {
 					enabled: true
 					externalPVC: {
 						use: true
-						name: volumes.logs.name
+						name: volume.logs.name
 					}
 				}
 				ingress: enabled: false