From fc340ec9667b9adb3df1ff6599b7bbc64b6838b7 Mon Sep 17 00:00:00 2001
From: Sam Alba <sam.alba@gmail.com>
Date: Mon, 3 Jun 2013 12:14:57 -0700
Subject: [PATCH 1/3] Fixed missing Body.Close when doing some HTTP requests.
 It should improve some request issues.

---
 docs/registry.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/docs/registry.go b/docs/registry.go
index 36b01d643..d9f53ee9f 100644
--- a/docs/registry.go
+++ b/docs/registry.go
@@ -64,6 +64,9 @@ func (r *Registry) LookupRemoteImage(imgId, registry string, authConfig *auth.Au
 	}
 	req.SetBasicAuth(authConfig.Username, authConfig.Password)
 	res, err := rt.RoundTrip(req)
+	if err == nil {
+		defer res.Body.Close()
+	}
 	return err == nil && res.StatusCode == 307
 }
 
@@ -152,7 +155,9 @@ func (r *Registry) GetRemoteTags(registries []string, repository string, token [
 		}
 		req.Header.Set("Authorization", "Token "+strings.Join(token, ", "))
 		res, err := r.client.Do(req)
-		defer res.Body.Close()
+		if err == nil {
+			defer res.Body.Close()
+		}
 		utils.Debugf("Got status code %d from %s", res.StatusCode, endpoint)
 		if err != nil || (res.StatusCode != 200 && res.StatusCode != 404) {
 			continue

From 6189c3cb0b517586ddab9db5a16bbed039b68a83 Mon Sep 17 00:00:00 2001
From: "Guillaume J. Charmes" <guillaume@dotcloud.com>
Date: Mon, 3 Jun 2013 12:20:52 -0700
Subject: [PATCH 2/3] Minor changes in registry.go

---
 docs/registry.go | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/docs/registry.go b/docs/registry.go
index d9f53ee9f..8283bf443 100644
--- a/docs/registry.go
+++ b/docs/registry.go
@@ -64,10 +64,11 @@ func (r *Registry) LookupRemoteImage(imgId, registry string, authConfig *auth.Au
 	}
 	req.SetBasicAuth(authConfig.Username, authConfig.Password)
 	res, err := rt.RoundTrip(req)
-	if err == nil {
-		defer res.Body.Close()
+	if err != nil {
+		return false
 	}
-	return err == nil && res.StatusCode == 307
+	res.Body.Close()
+	return res.StatusCode == 307
 }
 
 func (r *Registry) getImagesInRepository(repository string, authConfig *auth.AuthConfig) ([]map[string]string, error) {
@@ -155,18 +156,19 @@ func (r *Registry) GetRemoteTags(registries []string, repository string, token [
 		}
 		req.Header.Set("Authorization", "Token "+strings.Join(token, ", "))
 		res, err := r.client.Do(req)
-		if err == nil {
-			defer res.Body.Close()
-		}
 		utils.Debugf("Got status code %d from %s", res.StatusCode, endpoint)
-		if err != nil || (res.StatusCode != 200 && res.StatusCode != 404) {
+		if err != nil {
+			return nil, err
+		}
+		defer res.Body.Close()
+
+		if res.StatusCode != 200 && res.StatusCode != 404 {
 			continue
 		} else if res.StatusCode == 404 {
 			return nil, fmt.Errorf("Repository not found")
 		}
 
 		result := make(map[string]string)
-
 		rawJson, err := ioutil.ReadAll(res.Body)
 		if err != nil {
 			return nil, err

From b9e67a8884b1d03536e0a50373aba6340d8bd892 Mon Sep 17 00:00:00 2001
From: Sam Alba <sam.alba@gmail.com>
Date: Mon, 3 Jun 2013 14:42:21 -0700
Subject: [PATCH 3/3] Disabled HTTP keep-alive in the default HTTP client for
 Registry calls

---
 docs/registry.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/docs/registry.go b/docs/registry.go
index 8283bf443..aeae3fe4a 100644
--- a/docs/registry.go
+++ b/docs/registry.go
@@ -477,9 +477,15 @@ func NewRegistry(root string) *Registry {
 	// If the auth file does not exist, keep going
 	authConfig, _ := auth.LoadConfig(root)
 
+	httpTransport := &http.Transport{
+		DisableKeepAlives: true,
+	}
+
 	r := &Registry{
 		authConfig: authConfig,
-		client:     &http.Client{},
+		client: &http.Client{
+			Transport: httpTransport,
+		},
 	}
 	r.client.Jar = cookiejar.NewCookieJar()
 	return r