Add some conifguration and logging for the hub

appconfig/endpoints.go

@@ -0,0 +1,14 @@
+package appconfig
+
+import (
+	"fmt"
+	"net/http"
+)
+
+func handleAuthzConfig(w http.ResponseWriter, req *http.Request) {
+	headers := w.Header()
+	headers.Set("content-type", "text/plain")
+
+	w.WriteHeader(http.StatusOK)
+	fmt.Fprintf(w, "hello, world")
+}

appconfig/log.go

@@ -0,0 +1,33 @@
+package appconfig
+
+import "fmt"
+
+type logger interface {
+	Output(int, string) error
+}
+
+type ilogger interface {
+	logger
+	Print(...interface{})
+	Printf(string, ...interface{})
+	Println(...interface{})
+}
+
+type internalLog struct {
+	logger
+}
+
+// Println replicates the behaviour of the standard logger.
+func (t internalLog) Println(v ...interface{}) {
+	t.Output(2, fmt.Sprintln(v...))
+}
+
+// Printf replicates the behaviour of the standard logger.
+func (t internalLog) Printf(format string, v ...interface{}) {
+	t.Output(2, fmt.Sprintf(format, v...))
+}
+
+// Print replicates the behaviour of the standard logger.
+func (t internalLog) Print(v ...interface{}) {
+	t.Output(2, fmt.Sprint(v...))
+}

appconfig/provider.go

@@ -0,0 +1,31 @@
+package appconfig
+
+import (
+	"log"
+	"net/http"
+	"os"
+)
+
+type Provider struct {
+	handler http.Handler
+	log     ilogger
+}
+
+func NewProvider() Provider {
+	return Provider{
+		handler: router(),
+		log:     log.New(os.Stderr, "servicedemon/appconfig - ", log.LstdFlags|log.Lshortfile),
+	}
+}
+
+func (p Provider) Handler() http.Handler {
+	return p.handler
+}
+
+func router() *http.ServeMux {
+	mux := http.NewServeMux()
+
+	mux.HandleFunc("/config/authz", handleAuthzConfig)
+
+	return mux
+}