Update kubernetes to v1.8.0-rc.1

Signed-off-by: Lantao Liu <lantaol@google.com>

vendor/k8s.io/api/core/v1/generated.proto

@@ -441,6 +441,9 @@ message Container {
 
   // Docker image name.
   // More info: https://kubernetes.io/docs/concepts/containers/images
+  // This field is optional to allow higher level config management to default or override
+  // container images in workload controllers like Deployments and StatefulSets.
+  // +optional
   optional string image = 2;
 
   // Entrypoint array. Not executed within a shell.

vendor/k8s.io/api/core/v1/types.go

@@ -1887,7 +1887,10 @@ type Container struct {
 	Name string `json:"name" protobuf:"bytes,1,opt,name=name"`
 	// Docker image name.
 	// More info: https://kubernetes.io/docs/concepts/containers/images
-	Image string `json:"image" protobuf:"bytes,2,opt,name=image"`
+	// This field is optional to allow higher level config management to default or override
+	// container images in workload controllers like Deployments and StatefulSets.
+	// +optional
+	Image string `json:"image,omitempty" protobuf:"bytes,2,opt,name=image"`
 	// Entrypoint array. Not executed within a shell.
 	// The docker image's ENTRYPOINT is used if this is not provided.
 	// Variable references $(VAR_NAME) are expanded using the container's environment. If a variable

vendor/k8s.io/api/core/v1/types_swagger_doc_generated.go

@@ -269,7 +269,7 @@ func (ConfigMapVolumeSource) SwaggerDoc() map[string]string {
 var map_Container = map[string]string{
 	"":                         "A single application container that you want to run within a pod.",
 	"name":                     "Name of the container specified as a DNS_LABEL. Each container in a pod must have a unique name (DNS_LABEL). Cannot be updated.",
-	"image":                    "Docker image name. More info: https://kubernetes.io/docs/concepts/containers/images",
+	"image":                    "Docker image name. More info: https://kubernetes.io/docs/concepts/containers/images This field is optional to allow higher level config management to default or override container images in workload controllers like Deployments and StatefulSets.",
 	"command":                  "Entrypoint array. Not executed within a shell. The docker image's ENTRYPOINT is used if this is not provided. Variable references $(VAR_NAME) are expanded using the container's environment. If a variable cannot be resolved, the reference in the input string will be unchanged. The $(VAR_NAME) syntax can be escaped with a double $$, ie: $$(VAR_NAME). Escaped references will never be expanded, regardless of whether the variable exists or not. Cannot be updated. More info: https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#running-a-command-in-a-shell",
 	"args":                     "Arguments to the entrypoint. The docker image's CMD is used if this is not provided. Variable references $(VAR_NAME) are expanded using the container's environment. If a variable cannot be resolved, the reference in the input string will be unchanged. The $(VAR_NAME) syntax can be escaped with a double $$, ie: $$(VAR_NAME). Escaped references will never be expanded, regardless of whether the variable exists or not. Cannot be updated. More info: https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#running-a-command-in-a-shell",
 	"workingDir":               "Container's working directory. If not specified, the container runtime's default will be used, which might be configured in the container image. Cannot be updated.",

vendor/k8s.io/apimachinery/pkg/api/meta/restmapper.go

@@ -117,7 +117,10 @@ func NewDefaultRESTMapper(defaultGroupVersions []schema.GroupVersion, f VersionI
 
 func (m *DefaultRESTMapper) Add(kind schema.GroupVersionKind, scope RESTScope) {
 	plural, singular := UnsafeGuessKindToResource(kind)
+	m.AddSpecific(kind, plural, singular, scope)
+}
 
+func (m *DefaultRESTMapper) AddSpecific(kind schema.GroupVersionKind, plural, singular schema.GroupVersionResource, scope RESTScope) {
 	m.singularToPlural[singular] = plural
 	m.pluralToSingular[plural] = singular
 

vendor/k8s.io/client-go/rest/config.go

@@ -114,6 +114,9 @@ type Config struct {
 	// The maximum length of time to wait before giving up on a server request. A value of zero means no timeout.
 	Timeout time.Duration
 
+	// Dial specifies the dial function for creating unencrypted TCP connections.
+	Dial func(network, addr string) (net.Conn, error)
+
 	// Version forces a specific version to be used (if registered)
 	// Do we need this?
 	// Version string

vendor/k8s.io/client-go/rest/transport.go

@@ -96,5 +96,6 @@ func (c *Config) TransportConfig() (*transport.Config, error) {
 			Groups:   c.Impersonate.Groups,
 			Extra:    c.Impersonate.Extra,
 		},
+		Dial: c.Dial,
 	}, nil
 }

vendor/k8s.io/client-go/transport/cache.go

@@ -63,16 +63,20 @@ func (c *tlsTransportCache) get(config *Config) (http.RoundTripper, error) {
 		return http.DefaultTransport, nil
 	}
 
+	dial := config.Dial
+	if dial == nil {
+		dial = (&net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}).Dial
+	}
 	// Cache a single transport for these options
 	c.transports[key] = utilnet.SetTransportDefaults(&http.Transport{
 		Proxy:               http.ProxyFromEnvironment,
 		TLSHandshakeTimeout: 10 * time.Second,
 		TLSClientConfig:     tlsConfig,
 		MaxIdleConnsPerHost: idleConnsPerHost,
-		Dial: (&net.Dialer{
-			Timeout:   30 * time.Second,
-			KeepAlive: 30 * time.Second,
-		}).Dial,
+		Dial:                dial,
 	})
 	return c.transports[key], nil
 }

vendor/k8s.io/client-go/transport/config.go

@@ -16,7 +16,10 @@ limitations under the License.
 
 package transport
 
-import "net/http"
+import (
+	"net"
+	"net/http"
+)
 
 // Config holds various options for establishing a transport.
 type Config struct {
@@ -52,6 +55,9 @@ type Config struct {
 	// config may layer other RoundTrippers on top of the returned
 	// RoundTripper.
 	WrapTransport func(rt http.RoundTripper) http.RoundTripper
+
+	// Dial specifies the dial function for creating unencrypted TCP connections.
+	Dial func(network, addr string) (net.Conn, error)
 }
 
 // ImpersonationConfig has all the available impersonation options