Dodo APP: infrastructure to deploy app by pusing to Git repo

Change-Id: I4034c6893255581b014ddb207c844261cb34202b
diff --git a/core/installer/testapp.cue b/core/installer/testapp.cue
new file mode 100644
index 0000000..2573c5c
--- /dev/null
+++ b/core/installer/testapp.cue
@@ -0,0 +1,12 @@
+app: {
+	type: "golang:1.22.0"
+	run: "main.go"
+	ingress: {
+		network: "private"
+		subdomain: "testapp"
+		auth: enabled: false
+	}
+}
+
+// do create app --type=go[1.22.0] [--run-cmd=(*default main.go)]
+// do create ingress --subdomain=testapp [--network=public (*default private)] [--auth] [--auth-groups="admin" (*default empty)] TODO(gio): port