// CreateLaunchConfigurations creates a new Launch Configuration of a given class
func CreateLaunchConfigurations(class string, dryRun bool) (err error) {
// Verify the launch config class input
cfg, err := config.LoadLaunchConfigurationClass(class)
if err != nil {
return err
}
terminal.Information("Found Launch Configuration class configuration for [" + class + "]")
// Instance Class Config
instanceCfg, err := config.LoadInstanceClass(cfg.InstanceClass)
if err != nil {
return err
}
terminal.Information("Found Instance class configuration for [" + cfg.InstanceClass + "]")
// Increment the version
terminal.Information(fmt.Sprintf("Previous version of launch configuration is [%d]", cfg.Version))
cfg.Increment(class)
terminal.Information(fmt.Sprintf("New version of launch configuration is [%d]", cfg.Version))
params := &autoscaling.CreateLaunchConfigurationInput{
LaunchConfigurationName: aws.String(fmt.Sprintf("%s-v%d", class, cfg.Version)),
AssociatePublicIpAddress: aws.Bool(instanceCfg.PublicIPAddress),
InstanceMonitoring: &autoscaling.InstanceMonitoring{
Enabled: aws.Bool(instanceCfg.Monitoring),
},
InstanceType: aws.String(instanceCfg.InstanceType),
UserData: aws.String(instanceCfg.UserData),
//KernelId: aws.String("XmlStringMaxLen255"),
//PlacementTenancy: aws.String("XmlStringMaxLen64"),
//RamdiskId: aws.String("XmlStringMaxLen255"),
//SpotPrice: aws.String("SpotPrice"),
//ClassicLinkVPCId: aws.String("XmlStringMaxLen255"),
//ClassicLinkVPCSecurityGroups: []*string{
//aws.String("XmlStringMaxLen255"),
//},
}
// IAM Profile
if len(instanceCfg.IAMUser) > 0 {
iam, err := GetIAMUser(instanceCfg.IAMUser)
if err != nil {
return err
}
terminal.Information("Found IAM User [" + iam.UserName + "]")
params.IamInstanceProfile = aws.String(iam.Arn)
}
for _, region := range cfg.Regions {
if !regions.ValidRegion(region) {
return errors.New("Region [" + region + "] is not valid!")
}
// EBS
ebsVolumes := make([]*autoscaling.BlockDeviceMapping, len(instanceCfg.EBSVolumes))
for i, ebsClass := range instanceCfg.EBSVolumes {
volCfg, err := config.LoadVolumeClass(ebsClass)
if err != nil {
return err
}
terminal.Information("Found Volume Class Configuration for [" + ebsClass + "]")
latestSnapshot, err := GetLatestSnapshotByTag(region, "Class", volCfg.Snapshot)
if err != nil {
return err
}
terminal.Information("Found Snapshot [" + latestSnapshot.SnapshotID + "] with class [" + latestSnapshot.Class + "] created [" + latestSnapshot.CreatedHuman + "]")
ebsVolumes[i] = &autoscaling.BlockDeviceMapping{
DeviceName: aws.String(volCfg.DeviceName),
Ebs: &autoscaling.Ebs{
DeleteOnTermination: aws.Bool(volCfg.DeleteOnTermination),
SnapshotId: aws.String(latestSnapshot.SnapshotID),
VolumeSize: aws.Int64(int64(volCfg.VolumeSize)),
VolumeType: aws.String(volCfg.VolumeType),
//Encrypted: aws.Bool(volCfg.Encrypted),
},
//NoDevice: aws.String("String"),
//VirtualName: aws.String("String"),
}
if volCfg.VolumeType == "io1" {
ebsVolumes[i].Ebs.Iops = aws.Int64(int64(volCfg.Iops))
}
}
// EBS Optimized
if instanceCfg.EbsOptimized {
terminal.Information("Launching as EBS Optimized")
params.EbsOptimized = aws.Bool(instanceCfg.EbsOptimized)
}
params.BlockDeviceMappings = ebsVolumes
// AMI
ami, err := GetLatestImageByTag(region, "Class", instanceCfg.AMI)
if err != nil {
return err
}
terminal.Information("Found AMI [" + ami.ImageID + "] with class [" + ami.Class + "] created [" + ami.CreatedHuman + "]")
params.ImageId = aws.String(ami.ImageID)
// KeyPair
keyPair, err := GetKeyPairByName(region, instanceCfg.KeyName)
if err != nil {
return err
}
terminal.Information("Found KeyPair [" + keyPair.KeyName + "] in [" + keyPair.Region + "]")
params.KeyName = aws.String(keyPair.KeyName)
// VPC / Subnet
var vpc Vpc
var subnet Subnet
secGroupIds := make([]*string, len(instanceCfg.SecurityGroups))
if instanceCfg.Vpc != "" && instanceCfg.Subnet != "" {
// VPC
vpc, err = GetVpcByTag(region, "Class", instanceCfg.Vpc)
if err != nil {
return err
}
terminal.Information("Found VPC [" + vpc.VpcID + "] in Region [" + region + "]")
// Subnet
subnet, err = vpc.GetVpcSubnetByTag("Class", instanceCfg.Subnet)
if err != nil {
return err
}
terminal.Information("Found Subnet [" + subnet.SubnetID + "] in VPC [" + subnet.VpcID + "]")
// VPC Security Groups
secGroups, err := vpc.GetVpcSecurityGroupByTagMulti("Class", instanceCfg.SecurityGroups)
if err != nil {
return err
}
for i, secGroup := range secGroups {
terminal.Information("Found VPC Security Group [" + secGroup.GroupID + "] with name [" + secGroup.Name + "]")
secGroupIds[i] = aws.String(secGroup.GroupID)
}
} else {
terminal.Information("No VPC and/or Subnet specified for instance Class [" + class + "]")
// EC2-Classic security groups
secGroups, err := GetSecurityGroupByTagMulti(region, "Class", instanceCfg.SecurityGroups)
if err != nil {
return err
}
for i, secGroup := range secGroups {
terminal.Information("Found Security Group [" + secGroup.GroupID + "] with name [" + secGroup.Name + "]")
secGroupIds[i] = aws.String(secGroup.GroupID)
}
}
params.SecurityGroups = secGroupIds
svc := autoscaling.New(session.New(&aws.Config{Region: aws.String(region)}))
_, err = svc.CreateLaunchConfiguration(params)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
return errors.New(awsErr.Message())
}
return err
}
}
// Rotate out older launch configurations
if cfg.Retain > 1 {
err := RotateLaunchConfigurations(class, cfg, dryRun)
if err != nil {
terminal.ShowErrorMessage(fmt.Sprintf("Error rotating [%s] launch configurations!", class), err.Error())
return err
}
}
return nil
}
// LaunchInstance Launches a new EC2 Instance
func LaunchInstance(class, sequence, az string, dryRun bool) error {
// --dry-run flag
if dryRun {
terminal.Information("--dry-run flag is set, not making any actual changes!")
}
// Instance Class Config
instanceCfg, err := config.LoadInstanceClass(class)
if err != nil {
return err
}
terminal.Information("Found Instance class configuration for [" + class + "]!")
// AZ
azs, _ := regions.GetAZs()
if !azs.ValidAZ(az) {
return cli.NewExitError("Availability Zone ["+az+"] is Invalid!", 1)
}
terminal.Information("Found Availability Zone [" + az + "]!")
region := azs.GetRegion(az)
// AMI
ami, err := GetLatestImageByTag(region, "Class", instanceCfg.AMI)
if err != nil {
return err
}
terminal.Information("Found AMI [" + ami.ImageID + "] with class [" + ami.Class + "] created [" + ami.CreatedHuman + "]!")
// EBS
ebsVolumes := make([]*ec2.BlockDeviceMapping, len(instanceCfg.EBSVolumes))
for i, ebsClass := range instanceCfg.EBSVolumes {
volCfg, err := config.LoadVolumeClass(ebsClass)
if err != nil {
return err
}
terminal.Information("Found Volume Class Configuration for [" + ebsClass + "]!")
latestSnapshot, err := GetLatestSnapshotByTag(region, "Class", volCfg.Snapshot)
if err != nil {
return err
}
terminal.Information("Found Snapshot [" + latestSnapshot.SnapshotID + "] with class [" + latestSnapshot.Class + "] created [" + latestSnapshot.CreatedHuman + "]!")
ebsVolumes[i] = &ec2.BlockDeviceMapping{
DeviceName: aws.String(volCfg.DeviceName),
Ebs: &ec2.EbsBlockDevice{
DeleteOnTermination: aws.Bool(volCfg.DeleteOnTermination),
//Encrypted: aws.Bool(volCfg.Encrypted),
SnapshotId: aws.String(latestSnapshot.SnapshotID),
VolumeSize: aws.Int64(int64(volCfg.VolumeSize)),
VolumeType: aws.String(volCfg.VolumeType),
},
//NoDevice: aws.String("String"),
//VirtualName: aws.String("String"),
}
if volCfg.VolumeType == "io1" {
ebsVolumes[i].Ebs.Iops = aws.Int64(int64(volCfg.Iops))
}
}
// EBS Optimized
if instanceCfg.EbsOptimized {
terminal.Information("Launching as EBS Optimized")
}
// IAM Profile
var iam IAMUser
if len(instanceCfg.IAMUser) > 0 {
iam, err := GetIAMUser(instanceCfg.IAMUser)
if err != nil {
return err
}
terminal.Information("Found IAM User [" + iam.UserName + "]!")
}
// KeyPair
keyPair, err := GetKeyPairByName(region, instanceCfg.KeyName)
if err != nil {
return err
}
terminal.Information("Found KeyPair [" + keyPair.KeyName + "] in [" + keyPair.Region + "]!")
// Network Interfaces
// Placement ??
// VPC / Subnet
var vpc Vpc
var subnet Subnet
var subnetID string
secGroupIds := make([]*string, len(instanceCfg.SecurityGroups))
if instanceCfg.Vpc != "" && instanceCfg.Subnet != "" {
// VPC
vpc, err = GetVpcByTag(region, "Class", instanceCfg.Vpc)
if err != nil {
return err
}
terminal.Information("Found VPC [" + vpc.VpcID + "] in Region [" + region + "]!")
// Subnet
subnet, err = vpc.GetVpcSubnetByTag("Class", instanceCfg.Subnet)
if err != nil {
return err
}
subnetID = subnet.SubnetID
terminal.Information("Found Subnet [" + subnet.SubnetID + "] in VPC [" + subnet.VpcID + "]!")
// VPC Security Groups
secGroups, err := vpc.GetVpcSecurityGroupByTagMulti("Class", instanceCfg.SecurityGroups)
if err != nil {
return err
}
for i, secGroup := range secGroups {
terminal.Information("Found VPC Security Group [" + secGroup.GroupID + "] with name [" + secGroup.Name + "]!")
secGroupIds[i] = aws.String(secGroup.GroupID)
}
} else {
terminal.Information("No VPC and/or Subnet specified for instance Class [" + class + "]!")
// EC2-Classic security groups
secGroups, err := GetSecurityGroupByTagMulti(region, "Class", instanceCfg.SecurityGroups)
if err != nil {
return err
}
for i, secGroup := range secGroups {
terminal.Information("Found Security Group [" + secGroup.GroupID + "] with name [" + secGroup.Name + "]!")
secGroupIds[i] = aws.String(secGroup.GroupID)
}
}
// User Data
// ================================================================
// ================================================================
// ================================================================
svc := ec2.New(session.New(&aws.Config{Region: aws.String(region)}))
params := &ec2.RunInstancesInput{
ImageId: aws.String(ami.ImageID),
MaxCount: aws.Int64(1),
MinCount: aws.Int64(1),
BlockDeviceMappings: ebsVolumes,
DryRun: aws.Bool(dryRun),
EbsOptimized: aws.Bool(instanceCfg.EbsOptimized),
IamInstanceProfile: &ec2.IamInstanceProfileSpecification{
Arn: aws.String(iam.Arn),
Name: aws.String(iam.UserName),
},
InstanceInitiatedShutdownBehavior: aws.String(instanceCfg.ShutdownBehavior),
InstanceType: aws.String(instanceCfg.InstanceType),
KeyName: aws.String(keyPair.KeyName),
Monitoring: &ec2.RunInstancesMonitoringEnabled{
Enabled: aws.Bool(instanceCfg.Monitoring),
},
NetworkInterfaces: []*ec2.InstanceNetworkInterfaceSpecification{ // only needed when we launch with a public ip. TODO
{
/*
AssociatePublicIpAddress: aws.Bool(instanceCfg.PublicIpAddress),
DeleteOnTermination: aws.Bool(true),
//Description: aws.String("String"),
DeviceIndex: aws.Int64(0),
Groups: []*string{
aws.String("String"), // Required
},
PrivateIpAddress: aws.String("String"),
PrivateIpAddresses: []*ec2.PrivateIpAddressSpecification{
{ // Required
PrivateIpAddress: aws.String("String"), // Required
Primary: aws.Bool(true),
},
},
SecondaryPrivateIpAddressCount: aws.Int64(1),
SubnetId: aws.String("String"),
*/
},
},
/*
Placement: &ec2.Placement{ // havent played around with placements yet, TODO?
Affinity: aws.String("String"),
AvailabilityZone: aws.String("String"),
GroupName: aws.String("String"),
HostId: aws.String("String"),
Tenancy: aws.String("Tenancy"),
},
*/
// PrivateIpAddress: aws.String("String"),
SecurityGroupIds: secGroupIds,
SubnetId: aws.String(subnetID),
UserData: aws.String(base64.StdEncoding.EncodeToString([]byte(instanceCfg.UserData))),
//KernelId: aws.String("String"),
//RamdiskId: aws.String("String"),
}
launchInstanceResp, err := svc.RunInstances(params)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
return errors.New(awsErr.Message())
}
return err
}
// Add Tags
instanceTagsParams := &ec2.CreateTagsInput{
Resources: []*string{
launchInstanceResp.Instances[0].InstanceId,
},
Tags: []*ec2.Tag{
{
Key: aws.String("Name"),
Value: aws.String(class + sequence),
},
{
Key: aws.String("Sequence"),
Value: aws.String(sequence),
},
{
Key: aws.String("Class"),
Value: aws.String(class),
},
},
DryRun: aws.Bool(dryRun),
}
_, err = svc.CreateTags(instanceTagsParams)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
return errors.New(awsErr.Message())
}
return err
}
terminal.Information("Finished Launching Instance!")
inst := make(Instances, 1)
inst[1].Marshal(launchInstanceResp.Instances[0], region, &Subnets{subnet}, &Vpcs{vpc}, &Images{ami})
inst.PrintTable()
// ================================================================
// ================================================================
// ================================================================
return nil
}