vendor files

vendor/k8s.io/kubernetes/pkg/master/services.go

@@ -0,0 +1,54 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package master
+
+import (
+	"fmt"
+	"net"
+
+	"github.com/golang/glog"
+
+	"k8s.io/kubernetes/pkg/registry/core/service/ipallocator"
+)
+
+// DefaultServiceIPRange takes a the serviceIPRange flag and returns the defaulted service ip range (if  needed),
+// api server service IP, and an error
+// TODO move this out of the genericapiserver package
+func DefaultServiceIPRange(passedServiceClusterIPRange net.IPNet) (net.IPNet, net.IP, error) {
+	serviceClusterIPRange := passedServiceClusterIPRange
+	if passedServiceClusterIPRange.IP == nil {
+		defaultNet := "10.0.0.0/24"
+		glog.Infof("Network range for service cluster IPs is unspecified. Defaulting to %v.", defaultNet)
+		_, defaultServiceClusterIPRange, err := net.ParseCIDR(defaultNet)
+		if err != nil {
+			return net.IPNet{}, net.IP{}, err
+		}
+		serviceClusterIPRange = *defaultServiceClusterIPRange
+	}
+	if size := ipallocator.RangeSize(&serviceClusterIPRange); size < 8 {
+		return net.IPNet{}, net.IP{}, fmt.Errorf("The service cluster IP range must be at least %d IP addresses", 8)
+	}
+
+	// Select the first valid IP from ServiceClusterIPRange to use as the GenericAPIServer service IP.
+	apiServerServiceIP, err := ipallocator.GetIndexedIP(&serviceClusterIPRange, 1)
+	if err != nil {
+		return net.IPNet{}, net.IP{}, err
+	}
+	glog.V(4).Infof("Setting service IP to %q (read-write).", apiServerServiceIP)
+
+	return serviceClusterIPRange, apiServerServiceIP, nil
+}