Golang RunInstances示例

示例#1

文件： instance.go 项目： NeowayLabs/cloud-machine

// Create new instance
func Create(ec2Ref *ec2.EC2, instance *Instance) (ec2.Instance, error) {
	options := ec2.RunInstances{
		ImageId:               instance.ImageID,
		InstanceType:          instance.Type,
		KeyName:               instance.KeyName,
		SecurityGroups:        make([]ec2.SecurityGroup, len(instance.SecurityGroups)),
		SubnetId:              instance.SubnetID,
		EBSOptimized:          instance.EBSOptimized,
		DisableAPITermination: !instance.EnableAPITermination,
		AvailZone:             instance.AvailableZone,
	}

	if instance.CloudConfig != "" {
		userdata, err := ioutil.ReadFile(instance.CloudConfig)
		if err != nil {
			panic(err.Error())
		}

		options.UserData = userdata
	}

	if instance.ShutdownBehavior != "" {
		options.ShutdownBehavior = instance.ShutdownBehavior
	}

	if instance.PlacementGroupName != "" {
		options.PlacementGroupName = instance.PlacementGroupName
	}

	for i, securityGroup := range instance.SecurityGroups {
		options.SecurityGroups[i] = ec2.SecurityGroup{Id: securityGroup}
	}

	resp, err := ec2Ref.RunInstances(&options)
	if err != nil {
		return ec2.Instance{}, err
	} else if len(resp.Instances) == 0 {
		return ec2.Instance{}, errors.New("Any instance was created!")
	}

	ec2Instance := resp.Instances[0]
	tags := append(instance.Tags, ec2.Tag{"Name", instance.Name})
	_, err = ec2Ref.CreateTags([]string{ec2Instance.InstanceId}, tags)
	if err != nil {
		return ec2.Instance{}, err
	}

	mergeInstances(instance, &ec2Instance)

	err = WaitUntilState(ec2Ref, instance, "running")
	if err != nil {
		return ec2.Instance{}, err
	}

	return ec2Instance, nil
}

示例#2

文件： instance.go 项目： heryvictor/cloud-machine

/**
 * Create new instance
 */
func Create(ec2Ref *ec2.EC2, instance *Instance) (ec2.Instance, error) {
	options := ec2.RunInstances{
		ImageId:               instance.ImageId,
		InstanceType:          instance.Type,
		KeyName:               instance.KeyName,
		SecurityGroups:        make([]ec2.SecurityGroup, len(instance.SecurityGroups)),
		SubnetId:              instance.SubnetId,
		EBSOptimized:          instance.EBSOptimized,
		DisableAPITermination: !instance.EnableAPITermination,
	}

	if instance.CloudConfig != "" {
		cloudConfigTemplate, err := ioutil.ReadFile(instance.CloudConfig)
		if err != nil {
			panic(err.Error())
		}

		tpl := template.Must(template.New("cloudConfig").Parse(string(cloudConfigTemplate)))

		cloudConfig := new(bytes.Buffer)
		if err = tpl.Execute(cloudConfig, instance); err != nil {
			panic(err.Error())
		}

		options.UserData = cloudConfig.Bytes()
	}

	if instance.ShutdownBehavior != "" {
		options.ShutdownBehavior = instance.ShutdownBehavior
	}

	if instance.PlacementGroupName != "" {
		options.PlacementGroupName = instance.PlacementGroupName
	}

	for i, securityGroup := range instance.SecurityGroups {
		options.SecurityGroups[i] = ec2.SecurityGroup{Id: securityGroup}
	}

	resp, err := ec2Ref.RunInstances(&options)
	if err != nil {
		return ec2.Instance{}, err
	} else if len(resp.Instances) == 0 {
		return ec2.Instance{}, errors.New("Any instance was created!")
	}

	instanceRef := resp.Instances[0]
	_, err = ec2Ref.CreateTags([]string{instanceRef.InstanceId}, []ec2.Tag{{"Name", instance.Name}})
	if err != nil {
		return ec2.Instance{}, err
	}

	mergeInstances(instance, &instanceRef)

	err = WaitUntilState(ec2Ref, instance, "running")
	if err != nil {
		return ec2.Instance{}, err
	}

	return instanceRef, nil
}