Add json string property to hash_balance

Author: hoffmaen

src/code.cloudfoundry.org/gorouter/mbus/subscriber.go

@@ -43,7 +43,7 @@ type RegistryMessage struct {
 type RegistryMessageOpts struct {
 	LoadBalancingAlgorithm string  `json:"loadbalancing"`
 	HashHeaderName         string  `json:"hash_header"`
-	HashBalance            float64 `json:"hash_balance"`
+	HashBalance            float64 `json:"hash_balance,string"`
 }
 
 func (rm *RegistryMessage) makeEndpoint(http2Enabled bool) (*route.Endpoint, error) {

src/code.cloudfoundry.org/gorouter/route/pool.go

@@ -688,7 +688,7 @@ func (e *Endpoint) MarshalJSON() ([]byte, error) {
 		ServerCertDomainSAN    string            `json:"server_cert_domain_san,omitempty"`
 		LoadBalancingAlgorithm string            `json:"load_balancing_algorithm,omitempty"`
 		HashHeader             string            `json:"hash_header,omitempty"`
-		HashBalance            float64           `json:"hash_balance,omitempty"`
+		HashBalance            float64           `json:"hash_balance,omitempty,string"`
 	}
 
 	jsonObj.Address = e.addr

src/code.cloudfoundry.org/gorouter/route/pool_test.go

@@ -967,7 +967,7 @@ var _ = Describe("EndpointPool", func() {
 		json, err := pool.MarshalJSON()
 		Expect(err).ToNot(HaveOccurred())
 
-		Expect(string(json)).To(Equal(`[{"address":"1.2.3.4:5678","availability_zone":"az-meow","protocol":"http1","tls":false,"ttl":-1,"route_service_url":"https://my-rs.com","tags":null},{"address":"5.6.7.8:5678","availability_zone":"","protocol":"http2","tls":true,"ttl":-1,"tags":null,"private_instance_id":"pvt_test_instance_id","server_cert_domain_san":"pvt_test_san","load_balancing_algorithm":"hash","hash_header":"X-Header","hash_balance":1.25}]`))
+		Expect(string(json)).To(Equal(`[{"address":"1.2.3.4:5678","availability_zone":"az-meow","protocol":"http1","tls":false,"ttl":-1,"route_service_url":"https://my-rs.com","tags":null},{"address":"5.6.7.8:5678","availability_zone":"","protocol":"http2","tls":true,"ttl":-1,"tags":null,"private_instance_id":"pvt_test_instance_id","server_cert_domain_san":"pvt_test_san","load_balancing_algorithm":"hash","hash_header":"X-Header","hash_balance":"1.25"}]`))
 	})
 
 	Context("when endpoints do not have empty tags", func() {

src/code.cloudfoundry.org/route-registrar/config/config.go

@@ -76,7 +76,7 @@ type RouteSchema struct {
 type Options struct {
 	LoadBalancingAlgorithm LoadBalancingAlgorithm `json:"loadbalancing,omitempty" yaml:"loadbalancing,omitempty"`
 	HashHeader             string                 `json:"hash_header,omitempty" yaml:"hash_header,omitempty"`
-	HashBalance            float64                `json:"hash_balance,omitempty" yaml:"hash_balance,omitempty"`
+	HashBalance            float64                `json:"hash_balance,omitempty,string" yaml:"hash_balance,omitempty"`
 }
 
 type LoadBalancingAlgorithm string