Allow only exactly one schema to be valid at a certain point in time.

Author: joergdw

api/brokerserver/broker_handler_test.go

@@ -1186,7 +1186,7 @@ var _ = Describe("BrokerHandler", func() {
 				It("fails with 400", func() {
 					Expect(resp.Code).To(Equal(http.StatusBadRequest))
 					Expect(resp.Body.String()).To(MatchJSON(
-						`{"error": "InvalidPolicy", "description": "invalid policy provided: [{\"context\":\"(root)\",\"description\":\"Must validate at least one schema (anyOf)\"},{\"context\":\"(root).credential-type\",\"description\":\"credential-type must be one of the following: \\\"x509\\\", \\\"binding-secret\\\"\"}]"}`,
+						`{"error": "InvalidPolicy", "description": "invalid policy provided: [{\"context\":\"(root)\",\"description\":\"Must validate one and only one schema (oneOf)\"},{\"context\":\"(root).credential-type\",\"description\":\"credential-type must be one of the following: \\\"x509\\\", \\\"binding-secret\\\"\"}]"}`,
 					))
 				})
 

api/policyvalidator/meta.schema.json

@@ -3,7 +3,7 @@
   "title": "Autoscaler Policy JSON Schema",
   "description": "Unification of different schemas for scaling-policies for Autoscaler",
 
-  "anyOf": [
+  "oneOf": [
     {"$ref": "./scaling-policy.v0_9.schema.json"},
     {"$ref": "./legacy.schema.json"},
     {"$ref": "./service-key_only.v0_9.schema.json"}