Handler now accepts customizable routes for liveness and readiness

README.md

@@ -25,7 +25,7 @@ See the [GoDoc examples](https://godoc.org/github.com/heptiolabs/healthcheck) fo
 
  - Create a `healthcheck.Handler`:
    ```go
-   health := healthcheck.NewHandler()
+   health := healthcheck.NewHandler("", "")
    ```
 
  - Configure some application-specific liveness checks (whether the app itself is unhealthy):

example_test.go

@@ -31,7 +31,7 @@ import (
 
 func Example() {
 	// Create a Handler that we can use to register liveness and readiness checks.
-	health := NewHandler()
+	health := NewHandler("", "")
 
 	// Add a readiness check to make sure an upstream dependency resolves in DNS.
 	// If this fails we don't want to receive requests, but we shouldn't be
@@ -65,7 +65,7 @@ func Example_database() {
 	database = connectToDatabase()
 
 	// Create a Handler that we can use to register liveness and readiness checks.
-	health := NewHandler()
+	health := NewHandler("", "")
 
 	// Add a readiness check to we don't receive requests unless we can reach
 	// the database with a ping in <1 second.
@@ -89,7 +89,7 @@ func Example_database() {
 
 func Example_advanced() {
 	// Create a Handler that we can use to register liveness and readiness checks.
-	health := NewHandler()
+	health := NewHandler("", "")
 
 	// Make sure we can connect to an upstream dependency over TCP in less than
 	// 50ms. Run this check asynchronously in the background every 10 seconds

handler.go

@@ -29,13 +29,22 @@ type basicHandler struct {
 }
 
 // NewHandler creates a new basic Handler
-func NewHandler() Handler {
+func NewHandler(liveURL string, readyURL string) Handler {
 	h := &basicHandler{
 		livenessChecks:  make(map[string]Check),
 		readinessChecks: make(map[string]Check),
 	}
-	h.Handle("/live", http.HandlerFunc(h.LiveEndpoint))
-	h.Handle("/ready", http.HandlerFunc(h.ReadyEndpoint))
+
+	if liveURL == "" {
+		liveURL = "/live"
+	}
+
+	if readyURL == "" {
+		readyURL = "/ready"
+	}
+
+	h.Handle(liveURL, http.HandlerFunc(h.LiveEndpoint))
+	h.Handle(readyURL, http.HandlerFunc(h.ReadyEndpoint))
 	return h
 }
 

handler_test.go

@@ -123,7 +123,7 @@ func TestNewHandler(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			h := NewHandler()
+			h := NewHandler("", "")
 
 			if !tt.live {
 				h.AddLivenessCheck("test-liveness-check", func() error {

metrics_handler.go

@@ -30,7 +30,7 @@ type metricsHandler struct {
 // into the provided Prometheus registry.
 func NewMetricsHandler(registry prometheus.Registerer, namespace string) Handler {
 	return &metricsHandler{
-		handler:   NewHandler(),
+		handler:   NewHandler("", ""),
 		registry:  registry,
 		namespace: namespace,
 	}