// ConfigureTransport configures the specified Transport according to the
// specified proto and addr.
// If the proto is unix (using a unix socket to communicate) or npipe the
// compression is disabled.
func ConfigureTransport(tr *http.Transport, proto, addr string) error {
switch proto {
case "unix":
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return net.DialTimeout(proto, addr, defaultTimeout)
}
case "npipe":
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return DialPipe(addr, defaultTimeout)
}
default:
tr.Proxy = http.ProxyFromEnvironment
dialer, err := DialerFromEnvironment(&net.Dialer{
Timeout: defaultTimeout,
})
if err != nil {
return err
}
tr.Dial = dialer.Dial
}
return nil
}
// ConfigureTCPTransport configures the specified Transport according to the
// specified proto and addr.
// If the proto is unix (using a unix socket to communicate) the compression
// is disabled.
func ConfigureTCPTransport(tr *http.Transport, proto, addr string) {
// Why 32? See https://github.com/docker/docker/pull/8035.
timeout := 32 * time.Second
if proto == "unix" {
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return net.DialTimeout(proto, addr, timeout)
}
} else {
tr.Proxy = http.ProxyFromEnvironment
tr.Dial = (&net.Dialer{Timeout: timeout}).Dial
}
}
func newHttpTransporter() (trans *httpTransporter) {
tr := new(http.Transport)
tr.DisableCompression = true
tr.DisableKeepAlives = false
tr.MaxIdleConnsPerHost = 4
jar := cookieJar
if DisableGlobalCookie {
jar, _ = cookiejar.New(nil)
}
client := new(http.Client)
client.Jar = jar
client.Transport = tr
trans = new(httpTransporter)
trans.Client = client
trans.Header = new(http.Header)
return
}
func configureTransport(tr *http.Transport, proto, addr string) *http.Transport {
if tr == nil {
tr = &http.Transport{}
}
if proto == "unix" {
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return net.Dial(proto, addr)
}
} else {
tr.Proxy = http.ProxyFromEnvironment
tr.Dial = (&net.Dialer{}).Dial
}
return tr
}
// defaultTransport creates a new http.Transport with Docker's
// default transport configuration.
func defaultTransport(proto, addr string) *http.Transport {
tr := new(http.Transport)
// Why 32? See https://github.com/docker/docker/pull/8035.
timeout := 32 * time.Second
if proto == "unix" {
// No need for compression in local communications.
tr.DisableCompression = true
tr.Dial = func(_, _ string) (net.Conn, error) {
return net.DialTimeout(proto, addr, timeout)
}
} else if proto == "npipe" {
tr.Dial = func(_, _ string) (net.Conn, error) {
return DialPipe(addr, timeout)
}
} else {
tr.Proxy = http.ProxyFromEnvironment
tr.Dial = (&net.Dialer{Timeout: timeout}).Dial
}
return tr
}
// Transport returns an http.RoundTripper with the correct timeouts
func (ci *ConfigInfo) Transport() http.RoundTripper {
noTransport.Do(func() {
// Start with a sensible set of defaults then override.
// This also means we get new stuff when it gets added to go
t := new(http.Transport)
setDefaults(t, http.DefaultTransport.(*http.Transport))
t.Proxy = http.ProxyFromEnvironment
t.MaxIdleConnsPerHost = 4 * (ci.Checkers + ci.Transfers + 1)
t.TLSHandshakeTimeout = ci.ConnectTimeout
t.ResponseHeaderTimeout = ci.Timeout
t.TLSClientConfig = &tls.Config{InsecureSkipVerify: ci.InsecureSkipVerify}
t.DisableCompression = *noGzip
// Set in http_old.go initTransport
// t.Dial
// Set in http_new.go initTransport
// t.DialContext
// t.IdelConnTimeout
// t.ExpectContinueTimeout
ci.initTransport(t)
// Wrap that http.Transport in our own transport
transport = NewTransport(t, ci.DumpHeaders, ci.DumpBodies)
})
return transport
}