config dump endpoint for proxy

ocis-pkg/service/debug/option.go

@@ -20,6 +20,7 @@ type Options struct {
 	Zpages               bool
 	Health               func(http.ResponseWriter, *http.Request)
 	Ready                func(http.ResponseWriter, *http.Request)
+	ConfigDump           func(http.ResponseWriter, *http.Request)
 	CorsAllowedOrigins   []string
 	CorsAllowedMethods   []string
 	CorsAllowedHeaders   []string
@@ -100,6 +101,13 @@ func Ready(r func(http.ResponseWriter, *http.Request)) Option {
 	}
 }
 
+// ConfigDump to be documented.
+func ConfigDump(r func(http.ResponseWriter, *http.Request)) Option {
+	return func(o *Options) {
+		o.ConfigDump = r
+	}
+}
+
 // CorsAllowedOrigins provides a function to set the CorsAllowedOrigin option.
 func CorsAllowedOrigins(origins []string) Option {
 	return func(o *Options) {

ocis-pkg/service/debug/service.go

@@ -28,6 +28,10 @@ func NewService(opts ...Option) *http.Server {
 	mux.HandleFunc("/healthz", dopts.Health)
 	mux.HandleFunc("/readyz", dopts.Ready)
 
+	if dopts.ConfigDump != nil {
+		mux.HandleFunc("/config", dopts.ConfigDump)
+	}
+
 	if dopts.Pprof {
 		mux.HandleFunc("/debug/pprof/", pprof.Index)
 		mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)