Generalize Node preparation for e2e and integration tests

test/integration/framework/perf_utils.go

@@ -0,0 +1,103 @@
+/*
+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 framework
+
+import (
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/resource"
+	clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
+	e2eframework "k8s.io/kubernetes/test/e2e/framework"
+	testutils "k8s.io/kubernetes/test/utils"
+
+	"github.com/golang/glog"
+)
+
+const (
+	retries = 5
+)
+
+type IntegrationTestNodePreparer struct {
+	client          clientset.Interface
+	countToStrategy map[int]testutils.PrepareNodeStrategy
+	nodeNamePrefix  string
+}
+
+func NewIntegrationTestNodePreparer(client clientset.Interface, countToStrategy map[int]testutils.PrepareNodeStrategy, nodeNamePrefix string) testutils.TestNodePreparer {
+	return &IntegrationTestNodePreparer{
+		client:          client,
+		countToStrategy: countToStrategy,
+		nodeNamePrefix:  nodeNamePrefix,
+	}
+}
+
+func (p *IntegrationTestNodePreparer) PrepareNodes() error {
+	numNodes := 0
+	for k := range p.countToStrategy {
+		numNodes += k
+	}
+
+	glog.Infof("Making %d nodes", numNodes)
+	baseNode := &api.Node{
+		ObjectMeta: api.ObjectMeta{
+			GenerateName: p.nodeNamePrefix,
+		},
+		Spec: api.NodeSpec{
+			// TODO: investigate why this is needed.
+			ExternalID: "foo",
+		},
+		Status: api.NodeStatus{
+			Capacity: api.ResourceList{
+				api.ResourcePods:   *resource.NewQuantity(110, resource.DecimalSI),
+				api.ResourceCPU:    resource.MustParse("4"),
+				api.ResourceMemory: resource.MustParse("32Gi"),
+			},
+			Phase: api.NodeRunning,
+			Conditions: []api.NodeCondition{
+				{Type: api.NodeReady, Status: api.ConditionTrue},
+			},
+		},
+	}
+	for i := 0; i < numNodes; i++ {
+		if _, err := p.client.Core().Nodes().Create(baseNode); err != nil {
+			glog.Fatalf("Error creating node: %v", err)
+		}
+	}
+
+	nodes := e2eframework.GetReadySchedulableNodesOrDie(p.client)
+	index := 0
+	sum := 0
+	for k, strategy := range p.countToStrategy {
+		sum += k
+		for ; index < sum; index++ {
+			if err := testutils.DoPrepareNode(p.client, &nodes.Items[index], strategy); err != nil {
+				glog.Errorf("Aborting node preparation: %v", err)
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func (p *IntegrationTestNodePreparer) CleanupNodes() error {
+	nodes := e2eframework.GetReadySchedulableNodesOrDie(p.client)
+	for i := range nodes.Items {
+		if err := p.client.Core().Nodes().Delete(nodes.Items[i].Name, &api.DeleteOptions{}); err != nil {
+			glog.Errorf("Error while deleting Node: %v", err)
+		}
+	}
+	return nil
+}