Golang Instance.State方法代码示例

func TestFindInstancesByNodeName(t *testing.T) {
	awsServices := NewFakeAWSServices()

	nodeNameOne := "my-dns.internal"
	nodeNameTwo := "my-dns-two.internal"

	var tag ec2.Tag
	tag.Key = aws.String(TagNameKubernetesCluster)
	tag.Value = aws.String(TestClusterId)
	tags := []*ec2.Tag{&tag}

	var runningInstance ec2.Instance
	runningInstance.InstanceId = aws.String("i-running")
	runningInstance.PrivateDnsName = aws.String(nodeNameOne)
	runningInstance.State = &ec2.InstanceState{Code: aws.Int64(16), Name: aws.String("running")}
	runningInstance.Tags = tags

	var secondInstance ec2.Instance

	secondInstance.InstanceId = aws.String("i-running")
	secondInstance.PrivateDnsName = aws.String(nodeNameTwo)
	secondInstance.State = &ec2.InstanceState{Code: aws.Int64(48), Name: aws.String("running")}
	secondInstance.Tags = tags

	var terminatedInstance ec2.Instance
	terminatedInstance.InstanceId = aws.String("i-terminated")
	terminatedInstance.PrivateDnsName = aws.String(nodeNameOne)
	terminatedInstance.State = &ec2.InstanceState{Code: aws.Int64(48), Name: aws.String("terminated")}
	terminatedInstance.Tags = tags

	instances := []*ec2.Instance{&secondInstance, &runningInstance, &terminatedInstance}
	awsServices.instances = append(awsServices.instances, instances...)

	c, err := newAWSCloud(strings.NewReader("[global]"), awsServices)
	if err != nil {
		t.Errorf("Error building aws cloud: %v", err)
		return
	}

	nodeNames := []string{nodeNameOne}
	returnedInstances, errr := c.getInstancesByNodeNames(nodeNames)

	if errr != nil {
		t.Errorf("Failed to find instance: %v", err)
		return
	}

	if len(returnedInstances) != 1 {
		t.Errorf("Expected a single isntance but found: %v", returnedInstances)
	}

	if *returnedInstances[0].PrivateDnsName != nodeNameOne {
		t.Errorf("Expected node name %v but got %v", nodeNameOne, returnedInstances[0].PrivateDnsName)
	}
}

func TestNodeAddresses(t *testing.T) {
	// Note these instances have the same name
	// (we test that this produces an error)
	var instance0 ec2.Instance
	var instance1 ec2.Instance

	//0
	instance0.InstanceId = aws.String("instance-same")
	instance0.PrivateDnsName = aws.String("instance-same.ec2.internal")
	instance0.PrivateIpAddress = aws.String("192.168.0.1")
	instance0.PublicIpAddress = aws.String("1.2.3.4")
	instance0.InstanceType = aws.String("c3.large")
	state0 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance0.State = &state0

	//1
	instance1.InstanceId = aws.String("instance-same")
	instance1.PrivateDnsName = aws.String("instance-same.ec2.internal")
	instance1.PrivateIpAddress = aws.String("192.168.0.2")
	instance1.InstanceType = aws.String("c3.large")
	state1 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance1.State = &state1

	instances := []*ec2.Instance{&instance0, &instance1}

	aws1 := mockInstancesResp([]*ec2.Instance{})
	_, err1 := aws1.NodeAddresses("instance-mismatch.ec2.internal")
	if err1 == nil {
		t.Errorf("Should error when no instance found")
	}

	aws2 := mockInstancesResp(instances)
	_, err2 := aws2.NodeAddresses("instance-same.ec2.internal")
	if err2 == nil {
		t.Errorf("Should error when multiple instances found")
	}

	aws3 := mockInstancesResp(instances[0:1])
	addrs3, err3 := aws3.NodeAddresses("instance-same.ec2.internal")
	if err3 != nil {
		t.Errorf("Should not error when instance found")
	}
	if len(addrs3) != 3 {
		t.Errorf("Should return exactly 3 NodeAddresses")
	}
	testHasNodeAddress(t, addrs3, api.NodeInternalIP, "192.168.0.1")
	testHasNodeAddress(t, addrs3, api.NodeLegacyHostIP, "192.168.0.1")
	testHasNodeAddress(t, addrs3, api.NodeExternalIP, "1.2.3.4")
}

func TestFindInstanceByNodeNameExcludesTerminatedInstances(t *testing.T) {
	awsServices := NewFakeAWSServices()

	nodeName := "my-dns.internal"

	var tag ec2.Tag
	tag.Key = aws.String(TagNameKubernetesCluster)
	tag.Value = aws.String(TestClusterId)
	tags := []*ec2.Tag{&tag}

	var runningInstance ec2.Instance
	runningInstance.InstanceId = aws.String("i-running")
	runningInstance.PrivateDnsName = aws.String(nodeName)
	runningInstance.State = &ec2.InstanceState{Code: aws.Int64(16), Name: aws.String("running")}
	runningInstance.Tags = tags

	var terminatedInstance ec2.Instance
	terminatedInstance.InstanceId = aws.String("i-terminated")
	terminatedInstance.PrivateDnsName = aws.String(nodeName)
	terminatedInstance.State = &ec2.InstanceState{Code: aws.Int64(48), Name: aws.String("terminated")}
	terminatedInstance.Tags = tags

	instances := []*ec2.Instance{&terminatedInstance, &runningInstance}
	awsServices.instances = append(awsServices.instances, instances...)

	c, err := newAWSCloud(strings.NewReader("[global]"), awsServices)
	if err != nil {
		t.Errorf("Error building aws cloud: %v", err)
		return
	}

	instance, err := c.findInstanceByNodeName(nodeName)

	if err != nil {
		t.Errorf("Failed to find instance: %v", err)
		return
	}

	if *instance.InstanceId != "i-running" {
		t.Errorf("Expected running instance but got %v", *instance.InstanceId)
	}
}

func TestGetResources(t *testing.T) {
	var instance0 ec2.Instance
	var instance1 ec2.Instance
	var instance2 ec2.Instance

	//0
	instance0.InstanceID = aws.String("m3.medium")
	instance0.InstanceType = aws.String("m3.medium")
	state0 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance0.State = &state0

	//1
	instance1.InstanceID = aws.String("r3.8xlarge")
	instance1.InstanceType = aws.String("r3.8xlarge")
	state1 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance1.State = &state1

	//2
	instance2.InstanceID = aws.String("unknown.type")
	instance2.InstanceType = aws.String("unknown.type")
	state2 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance2.State = &state2

	instances := []*ec2.Instance{&instance0, &instance1, &instance2}

	aws1 := mockInstancesResp(instances)

	res1, err1 := aws1.GetNodeResources("m3.medium")
	if err1 != nil {
		t.Errorf("Should not error when instance type found: %v", err1)
	}
	e1 := &api.NodeResources{
		Capacity: api.ResourceList{
			api.ResourceCPU:    *resource.NewMilliQuantity(int64(3.0*1000), resource.DecimalSI),
			api.ResourceMemory: *resource.NewQuantity(int64(3.75*1024*1024*1024), resource.BinarySI),
		},
	}
	if !reflect.DeepEqual(e1, res1) {
		t.Errorf("Expected %v, got %v", e1, res1)
	}

	res2, err2 := aws1.GetNodeResources("r3.8xlarge")
	if err2 != nil {
		t.Errorf("Should not error when instance type found: %v", err2)
	}
	e2 := &api.NodeResources{
		Capacity: api.ResourceList{
			api.ResourceCPU:    *resource.NewMilliQuantity(int64(104.0*1000), resource.DecimalSI),
			api.ResourceMemory: *resource.NewQuantity(int64(244.0*1024*1024*1024), resource.BinarySI),
		},
	}
	if !reflect.DeepEqual(e2, res2) {
		t.Errorf("Expected %v, got %v", e2, res2)
	}

	res3, err3 := aws1.GetNodeResources("unknown.type")
	if err3 != nil {
		t.Errorf("Should not error when unknown instance type")
	}
	if res3 != nil {
		t.Errorf("Should return nil resources when unknown instance type")
	}
}

func TestList(t *testing.T) {
	// TODO this setup is not very clean and could probably be improved
	var instance0 ec2.Instance
	var instance1 ec2.Instance
	var instance2 ec2.Instance
	var instance3 ec2.Instance

	//0
	tag0 := ec2.Tag{
		Key:   aws.String("Name"),
		Value: aws.String("foo"),
	}
	instance0.Tags = []*ec2.Tag{&tag0}
	instance0.InstanceID = aws.String("instance0")
	state0 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance0.State = &state0

	//1
	tag1 := ec2.Tag{
		Key:   aws.String("Name"),
		Value: aws.String("bar"),
	}
	instance1.Tags = []*ec2.Tag{&tag1}
	instance1.InstanceID = aws.String("instance1")
	state1 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance1.State = &state1

	//2
	tag2 := ec2.Tag{
		Key:   aws.String("Name"),
		Value: aws.String("baz"),
	}
	instance2.Tags = []*ec2.Tag{&tag2}
	instance2.InstanceID = aws.String("instance2")
	state2 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance2.State = &state2

	//3
	tag3 := ec2.Tag{
		Key:   aws.String("Name"),
		Value: aws.String("quux"),
	}
	instance3.Tags = []*ec2.Tag{&tag3}
	instance3.InstanceID = aws.String("instance3")
	state3 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance3.State = &state3

	instances := []*ec2.Instance{&instance0, &instance1, &instance2, &instance3}
	aws := mockInstancesResp(instances)

	table := []struct {
		input  string
		expect []string
	}{
		{"blahonga", []string{}},
		{"quux", []string{"instance3"}},
		{"a", []string{"instance1", "instance2"}},
	}

	for _, item := range table {
		result, err := aws.List(item.input)
		if err != nil {
			t.Errorf("Expected call with %v to succeed, failed with %s", item.input, err)
		}
		if e, a := item.expect, result; !reflect.DeepEqual(e, a) {
			t.Errorf("Expected %v, got %v", e, a)
		}
	}
}

func TestNodeAddresses(t *testing.T) {
	// Note these instances have the same name
	// (we test that this produces an error)
	var instance0 ec2.Instance
	var instance1 ec2.Instance
	var instance2 ec2.Instance

	//0
	instance0.InstanceId = aws.String("i-self")
	instance0.PrivateDnsName = aws.String("instance-same.ec2.internal")
	instance0.PrivateIpAddress = aws.String("192.168.0.1")
	instance0.PublicIpAddress = aws.String("1.2.3.4")
	instance0.InstanceType = aws.String("c3.large")
	state0 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance0.State = &state0

	//1
	instance1.InstanceId = aws.String("i-self")
	instance1.PrivateDnsName = aws.String("instance-same.ec2.internal")
	instance1.PrivateIpAddress = aws.String("192.168.0.2")
	instance1.InstanceType = aws.String("c3.large")
	state1 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance1.State = &state1

	//2
	instance2.InstanceId = aws.String("i-self")
	instance2.PrivateDnsName = aws.String("instance-other.ec2.internal")
	instance2.PrivateIpAddress = aws.String("192.168.0.1")
	instance2.PublicIpAddress = aws.String("1.2.3.4")
	instance2.InstanceType = aws.String("c3.large")
	state2 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance2.State = &state2

	instances := []*ec2.Instance{&instance0, &instance1, &instance2}

	aws1, _ := mockInstancesResp([]*ec2.Instance{})
	_, err1 := aws1.NodeAddresses("instance-mismatch.ec2.internal")
	if err1 == nil {
		t.Errorf("Should error when no instance found")
	}

	aws2, _ := mockInstancesResp(instances)
	_, err2 := aws2.NodeAddresses("instance-same.ec2.internal")
	if err2 == nil {
		t.Errorf("Should error when multiple instances found")
	}

	aws3, _ := mockInstancesResp(instances[0:1])
	addrs3, err3 := aws3.NodeAddresses("instance-same.ec2.internal")
	if err3 != nil {
		t.Errorf("Should not error when instance found")
	}
	if len(addrs3) != 3 {
		t.Errorf("Should return exactly 3 NodeAddresses")
	}
	testHasNodeAddress(t, addrs3, api.NodeInternalIP, "192.168.0.1")
	testHasNodeAddress(t, addrs3, api.NodeLegacyHostIP, "192.168.0.1")
	testHasNodeAddress(t, addrs3, api.NodeExternalIP, "1.2.3.4")

	aws4, fakeServices := mockInstancesResp([]*ec2.Instance{})
	fakeServices.externalIP = "2.3.4.5"
	fakeServices.internalIP = "192.168.0.2"
	aws4.selfAWSInstance = &awsInstance{nodeName: fakeServices.instanceId}

	addrs4, err4 := aws4.NodeAddresses(fakeServices.instanceId)
	if err4 != nil {
		t.Errorf("unexpected error: %v", err4)
	}
	testHasNodeAddress(t, addrs4, api.NodeInternalIP, "192.168.0.2")
	testHasNodeAddress(t, addrs4, api.NodeExternalIP, "2.3.4.5")
}

func TestNodeAddresses(t *testing.T) {
	// Note these instances have the same name
	// (we test that this produces an error)
	var instance0 ec2.Instance
	var instance1 ec2.Instance
	var instance2 ec2.Instance

	//0
	instance0.InstanceId = aws.String("i-0")
	instance0.PrivateDnsName = aws.String("instance-same.ec2.internal")
	instance0.PrivateIpAddress = aws.String("192.168.0.1")
	instance0.PublicIpAddress = aws.String("1.2.3.4")
	instance0.InstanceType = aws.String("c3.large")
	instance0.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	state0 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance0.State = &state0

	//1
	instance1.InstanceId = aws.String("i-1")
	instance1.PrivateDnsName = aws.String("instance-same.ec2.internal")
	instance1.PrivateIpAddress = aws.String("192.168.0.2")
	instance1.InstanceType = aws.String("c3.large")
	instance1.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	state1 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance1.State = &state1

	//2
	instance2.InstanceId = aws.String("i-2")
	instance2.PrivateDnsName = aws.String("instance-other.ec2.internal")
	instance2.PrivateIpAddress = aws.String("192.168.0.1")
	instance2.PublicIpAddress = aws.String("1.2.3.4")
	instance2.InstanceType = aws.String("c3.large")
	instance2.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	state2 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance2.State = &state2

	instances := []*ec2.Instance{&instance0, &instance1, &instance2}

	aws1, _ := mockInstancesResp(&instance0, []*ec2.Instance{&instance0})
	_, err1 := aws1.NodeAddresses("instance-mismatch.ec2.internal")
	if err1 == nil {
		t.Errorf("Should error when no instance found")
	}

	aws2, _ := mockInstancesResp(&instance2, instances)
	_, err2 := aws2.NodeAddresses("instance-same.ec2.internal")
	if err2 == nil {
		t.Errorf("Should error when multiple instances found")
	}

	aws3, _ := mockInstancesResp(&instance0, instances[0:1])
	addrs3, err3 := aws3.NodeAddresses("instance-same.ec2.internal")
	if err3 != nil {
		t.Errorf("Should not error when instance found")
	}
	if len(addrs3) != 3 {
		t.Errorf("Should return exactly 3 NodeAddresses")
	}
	testHasNodeAddress(t, addrs3, api.NodeInternalIP, "192.168.0.1")
	testHasNodeAddress(t, addrs3, api.NodeLegacyHostIP, "192.168.0.1")
	testHasNodeAddress(t, addrs3, api.NodeExternalIP, "1.2.3.4")

	// Fetch from metadata
	aws4, fakeServices := mockInstancesResp(&instance0, []*ec2.Instance{&instance0})
	fakeServices.selfInstance.PublicIpAddress = aws.String("2.3.4.5")
	fakeServices.selfInstance.PrivateIpAddress = aws.String("192.168.0.2")

	addrs4, err4 := aws4.NodeAddresses(*instance0.PrivateDnsName)
	if err4 != nil {
		t.Errorf("unexpected error: %v", err4)
	}
	testHasNodeAddress(t, addrs4, api.NodeInternalIP, "192.168.0.2")
	testHasNodeAddress(t, addrs4, api.NodeExternalIP, "2.3.4.5")
}