Fix goroutine leak in Run

D'oh, the servers' Shutdown() would never be called because they were
never added to the list of servers.

Thanks Danny for finding this.

.gitignore

@@ -1 +1,5 @@
 _gitignore/
+
+# artifacts from pprof tooling
+*.prof
+*.test

admin.go

@@ -33,7 +33,7 @@ func StartAdmin(addr string) error {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/load", handleLoadConfig)
 
-	///// BEGIN PPROF STUFF //////
+	///// BEGIN PPROF STUFF (TODO: Temporary) /////
 	mux.HandleFunc("/debug/pprof/", pprof.Index)
 	mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
 	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)

caddy.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
-	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
@@ -49,9 +48,6 @@ func Start(cfg Config) error {
 	currentCfg = &cfg
 	currentCfgMu.Unlock()
 
-	// TODO: debugging memory leak...
-	debug.FreeOSMemory()
-
 	return nil
 }
 

modules/caddyhttp/caddyhttp.go

@@ -49,6 +49,7 @@ func (hc *httpModuleConfig) Run() error {
 					return fmt.Errorf("%s: listening on %s: %v", proto, addr, err)
 				}
 				go s.Serve(ln)
+				hc.servers = append(hc.servers, s)
 			}
 		}
 	}