Require pprof build tag to enable net/pprof

pprof.go

@@ -0,0 +1,21 @@
+// +build pprof
+
+package main
+
+import (
+	"net/http"
+	_ "net/http/pprof"
+	"os"
+)
+
+func init() {
+	bind := os.Getenv("IMGPROXY_PPROF_BIND")
+
+	if len(bind) == 0 {
+		bind = ":8088"
+	}
+
+	go func() {
+		http.ListenAndServe(bind, nil)
+	}()
+}