func (i *EC2IaaS) CreateMachine(params map[string]string) (*iaas.Machine, error) { regionName, ok := params["region"] if !ok { regionName = "us-east-1" } region, ok := aws.Regions[regionName] if !ok { return nil, fmt.Errorf("region %q not found", regionName) } imageId, ok := params["image"] if !ok { return nil, fmt.Errorf("image param required") } instanceType, ok := params["type"] if !ok { return nil, fmt.Errorf("type param required") } keyName, _ := params["keyName"] options := ec2.RunInstances{ ImageId: imageId, InstanceType: instanceType, UserData: []byte(iaas.UserData), MinCount: 1, MaxCount: 1, KeyName: keyName, } securityGroup, ok := params["securityGroup"] if ok { options.SecurityGroups = []ec2.SecurityGroup{ {Name: securityGroup}, } } ec2Inst, err := createEC2Handler(region) if err != nil { return nil, err } resp, err := ec2Inst.RunInstances(&options) if err != nil { return nil, err } if len(resp.Instances) == 0 { return nil, fmt.Errorf("no instance created") } instance, err := waitForDnsName(ec2Inst, &resp.Instances[0]) if err != nil { ec2Inst.TerminateInstances([]string{instance.InstanceId}) return nil, err } machine := iaas.Machine{ Id: instance.InstanceId, Status: instance.State.Name, Address: instance.DNSName, } return &machine, nil }