Golang Instance.Placement方法代碼示例

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")
}

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")
	instance0.PrivateDnsName = aws.String("instance0.ec2.internal")
	instance0.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	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")
	instance1.PrivateDnsName = aws.String("instance1.ec2.internal")
	instance1.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	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")
	instance2.PrivateDnsName = aws.String("instance2.ec2.internal")
	instance2.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	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")
	instance3.PrivateDnsName = aws.String("instance3.ec2.internal")
	instance3.Placement = &ec2.Placement{AvailabilityZone: aws.String("us-east-1a")}
	state3 := ec2.InstanceState{
		Name: aws.String("running"),
	}
	instance3.State = &state3

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

	table := []struct {
		input  string
		expect []string
	}{
		{"blahonga", []string{}},
		{"quux", []string{"instance3.ec2.internal"}},
		{"a", []string{"instance1.ec2.internal", "instance2.ec2.internal"}},
	}

	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)
		}
	}
}