Custom resource definition

Co-authored-by: Mathieu Lonjaret <mathieu.lonjaret@gmail.com>

vendor/k8s.io/apimachinery/pkg/util/net/http.go

@@ -19,6 +19,7 @@ package net
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"crypto/tls"
 	"fmt"
 	"io"
@@ -61,6 +62,9 @@ func JoinPreservingTrailingSlash(elem ...string) string {
 // differentiate probable errors in connection behavior between normal "this is
 // disconnected" should use the method.
 func IsProbableEOF(err error) bool {
+	if err == nil {
+		return false
+	}
 	if uerr, ok := err.(*url.Error); ok {
 		err = uerr.Err
 	}
@@ -87,8 +91,8 @@ func SetOldTransportDefaults(t *http.Transport) *http.Transport {
 		// ProxierWithNoProxyCIDR allows CIDR rules in NO_PROXY
 		t.Proxy = NewProxierWithNoProxyCIDR(http.ProxyFromEnvironment)
 	}
-	if t.Dial == nil {
-		t.Dial = defaultTransport.Dial
+	if t.DialContext == nil {
+		t.DialContext = defaultTransport.DialContext
 	}
 	if t.TLSHandshakeTimeout == 0 {
 		t.TLSHandshakeTimeout = defaultTransport.TLSHandshakeTimeout
@@ -116,7 +120,7 @@ type RoundTripperWrapper interface {
 	WrappedRoundTripper() http.RoundTripper
 }
 
-type DialFunc func(net, addr string) (net.Conn, error)
+type DialFunc func(ctx context.Context, net, addr string) (net.Conn, error)
 
 func DialerFor(transport http.RoundTripper) (DialFunc, error) {
 	if transport == nil {
@@ -125,7 +129,7 @@ func DialerFor(transport http.RoundTripper) (DialFunc, error) {
 
 	switch transport := transport.(type) {
 	case *http.Transport:
-		return transport.Dial, nil
+		return transport.DialContext, nil
 	case RoundTripperWrapper:
 		return DialerFor(transport.WrappedRoundTripper())
 	default:

vendor/k8s.io/apimachinery/pkg/util/net/port_range.go

@@ -43,14 +43,19 @@ func (pr PortRange) String() string {
 	return fmt.Sprintf("%d-%d", pr.Base, pr.Base+pr.Size-1)
 }
 
-// Set parses a string of the form "min-max", inclusive at both ends, and
+// Set parses a string of the form "value", "min-max", or "min+offset", inclusive at both ends, and
 // sets the PortRange from it.  This is part of the flag.Value and pflag.Value
 // interfaces.
 func (pr *PortRange) Set(value string) error {
-	value = strings.TrimSpace(value)
+	const (
+		SinglePortNotation = 1 << iota
+		HyphenNotation
+		PlusNotation
+	)
 
-	// TODO: Accept "80" syntax
-	// TODO: Accept "80+8" syntax
+	value = strings.TrimSpace(value)
+	hyphenIndex := strings.Index(value, "-")
+	plusIndex := strings.Index(value, "+")
 
 	if value == "" {
 		pr.Base = 0
@@ -58,20 +63,51 @@ func (pr *PortRange) Set(value string) error {
 		return nil
 	}
 
-	hyphenIndex := strings.Index(value, "-")
-	if hyphenIndex == -1 {
-		return fmt.Errorf("expected hyphen in port range")
+	var err error
+	var low, high int
+	var notation int
+
+	if plusIndex == -1 && hyphenIndex == -1 {
+		notation |= SinglePortNotation
+	}
+	if hyphenIndex != -1 {
+		notation |= HyphenNotation
+	}
+	if plusIndex != -1 {
+		notation |= PlusNotation
 	}
 
-	var err error
-	var low int
-	var high int
-	low, err = strconv.Atoi(value[:hyphenIndex])
-	if err == nil {
+	switch notation {
+	case SinglePortNotation:
+		var port int
+		port, err = strconv.Atoi(value)
+		if err != nil {
+			return err
+		}
+		low = port
+		high = port
+	case HyphenNotation:
+		low, err = strconv.Atoi(value[:hyphenIndex])
+		if err != nil {
+			return err
+		}
 		high, err = strconv.Atoi(value[hyphenIndex+1:])
-	}
-	if err != nil {
-		return fmt.Errorf("unable to parse port range: %s: %v", value, err)
+		if err != nil {
+			return err
+		}
+	case PlusNotation:
+		var offset int
+		low, err = strconv.Atoi(value[:plusIndex])
+		if err != nil {
+			return err
+		}
+		offset, err = strconv.Atoi(value[plusIndex+1:])
+		if err != nil {
+			return err
+		}
+		high = low + offset
+	default:
+		return fmt.Errorf("unable to parse port range: %s", value)
 	}
 
 	if low > 65535 || high > 65535 {

vendor/k8s.io/apimachinery/pkg/util/net/util.go

@@ -18,6 +18,8 @@ package net
 
 import (
 	"net"
+	"net/url"
+	"os"
 	"reflect"
 	"syscall"
 )
@@ -38,8 +40,16 @@ func IPNetEqual(ipnet1, ipnet2 *net.IPNet) bool {
 
 // Returns if the given err is "connection reset by peer" error.
 func IsConnectionReset(err error) bool {
-	opErr, ok := err.(*net.OpError)
-	if ok && opErr.Err.Error() == syscall.ECONNRESET.Error() {
+	if urlErr, ok := err.(*url.Error); ok {
+		err = urlErr.Err
+	}
+	if opErr, ok := err.(*net.OpError); ok {
+		err = opErr.Err
+	}
+	if osErr, ok := err.(*os.SyscallError); ok {
+		err = osErr.Err
+	}
+	if errno, ok := err.(syscall.Errno); ok && errno == syscall.ECONNRESET {
 		return true
 	}
 	return false