func (cloudManager *EC2Manager) SpawnInstance(d *distro.Distro, hostOpts cloud.HostOptions) (*host.Host, error) {
if d.Provider != OnDemandProviderName {
return nil, fmt.Errorf("Can't spawn instance of %v for distro %v: provider is %v", OnDemandProviderName, d.Id, d.Provider)
}
ec2Handle := getUSEast(*cloudManager.awsCredentials)
//Decode and validate the ProviderSettings into the ec2-specific ones.
ec2Settings := &EC2ProviderSettings{}
if err := mapstructure.Decode(d.ProviderSettings, ec2Settings); err != nil {
return nil, fmt.Errorf("Error decoding params for distro %v: %v", d.Id, err)
}
if err := ec2Settings.Validate(); err != nil {
return nil, fmt.Errorf("Invalid EC2 settings in distro %#v: %v and %#v", d, err, ec2Settings)
}
blockDevices, err := makeBlockDeviceMappings(ec2Settings.MountPoints)
if err != nil {
return nil, err
}
instanceName := generateName(d.Id)
// proactively write all possible information pertaining
// to the host we want to create. this way, if we are unable
// to start it or record its instance id, we have a way of knowing
// something went wrong - and what
intentHost := cloud.NewIntent(*d, instanceName, OnDemandProviderName, hostOpts)
intentHost.InstanceType = ec2Settings.InstanceType
// record this 'intent host'
if err := intentHost.Insert(); err != nil {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Could not insert intent "+
"host “%v”: %v", intentHost.Id, err)
}
evergreen.Logger.Logf(slogger.DEBUG, "Successfully inserted intent host “%v” "+
"for distro “%v” to signal cloud instance spawn intent", instanceName,
d.Id)
options := ec2.RunInstancesOptions{
MinCount: 1,
MaxCount: 1,
ImageId: ec2Settings.AMI,
KeyName: ec2Settings.KeyName,
InstanceType: ec2Settings.InstanceType,
SecurityGroups: ec2.SecurityGroupNames(ec2Settings.SecurityGroup),
BlockDevices: blockDevices,
}
// if it's a Vpc override the options to be the correct VPC settings.
if ec2Settings.IsVpc {
options.SecurityGroups = ec2.SecurityGroupIds(ec2Settings.SecurityGroup)
options.AssociatePublicIpAddress = true
options.SubnetId = ec2Settings.SubnetId
}
// start the instance - starting an instance does not mean you can connect
// to it immediately you have to use GetInstanceStatus below to ensure that
// it's actually running
newHost, resp, err := startEC2Instance(ec2Handle, &options, intentHost)
if err != nil {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Could not start new "+
"instance for distro “%v”. Accompanying host record is “%v”: %v",
d.Id, intentHost.Id, err)
}
instance := resp.Instances[0]
// create some tags based on user, hostname, owner, time, etc.
tags := makeTags(intentHost)
// attach the tags to this instance
err = attachTags(ec2Handle, tags, instance.InstanceId)
if err != nil {
evergreen.Logger.Errorf(slogger.ERROR, "Unable to attach tags for %v: %v",
instance.InstanceId, err)
} else {
evergreen.Logger.Logf(slogger.DEBUG, "Attached tag name “%v” for “%v”",
instanceName, instance.InstanceId)
}
return newHost, nil
}
func (cloudManager *EC2SpotManager) SpawnInstance(d *distro.Distro, hostOpts cloud.HostOptions) (*host.Host, error) {
if d.Provider != SpotProviderName {
return nil, fmt.Errorf("Can't spawn instance of %v for distro %v: provider is %v", SpotProviderName, d.Id, d.Provider)
}
ec2Handle := getUSEast(*cloudManager.awsCredentials)
//Decode and validate the ProviderSettings into the ec2-specific ones.
ec2Settings := &EC2SpotSettings{}
if err := mapstructure.Decode(d.ProviderSettings, ec2Settings); err != nil {
return nil, fmt.Errorf("Error decoding params for distro %v: %v", d.Id, err)
}
if err := ec2Settings.Validate(); err != nil {
return nil, fmt.Errorf("Invalid EC2 spot settings in distro %v: %v", d.Id, err)
}
blockDevices, err := makeBlockDeviceMappings(ec2Settings.MountPoints)
if err != nil {
return nil, err
}
instanceName := generateName(d.Id)
intentHost := cloud.NewIntent(*d, instanceName, SpotProviderName, hostOpts)
intentHost.InstanceType = ec2Settings.InstanceType
// record this 'intent host'
if err := intentHost.Insert(); err != nil {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Could not insert intent "+
"host “%v”: %v", intentHost.Id, err)
}
evergreen.Logger.Logf(slogger.DEBUG, "Successfully inserted intent host “%v” "+
"for distro “%v” to signal cloud instance spawn intent", instanceName,
d.Id)
spotRequest := &ec2.RequestSpotInstances{
SpotPrice: fmt.Sprintf("%v", ec2Settings.BidPrice),
InstanceCount: 1,
ImageId: ec2Settings.AMI,
KeyName: ec2Settings.KeyName,
InstanceType: ec2Settings.InstanceType,
SecurityGroups: ec2.SecurityGroupNames(ec2Settings.SecurityGroup),
BlockDevices: blockDevices,
}
// if the spot instance is a vpc then set the appropriate fields
if ec2Settings.IsVpc {
spotRequest.SecurityGroups = ec2.SecurityGroupIds(ec2Settings.SecurityGroup)
spotRequest.AssociatePublicIpAddress = true
spotRequest.SubnetId = ec2Settings.SubnetId
}
spotResp, err := ec2Handle.RequestSpotInstances(spotRequest)
if err != nil {
//Remove the intent host if the API call failed
if err := intentHost.Remove(); err != nil {
evergreen.Logger.Logf(slogger.ERROR, "Failed to remove intent host %v: %v", intentHost.Id, err)
}
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Failed starting spot instance "+
" for distro '%v' on intent host %v: %v", d.Id, intentHost.Id, err)
}
spotReqRes := spotResp.SpotRequestResults[0]
if spotReqRes.State != SpotStatusOpen && spotReqRes.State != SpotStatusActive {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Spot request %v was found in "+
" state %v on intent host %v", spotReqRes.SpotRequestId, spotReqRes.State, intentHost.Id)
}
intentHost.Id = spotReqRes.SpotRequestId
err = intentHost.Insert()
if err != nil {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Could not insert updated host info with id %v"+
" for intent host %v: %v", intentHost.Id, instanceName, err)
}
//find the old intent host and remove it, since we now have the real
//host doc successfully stored.
oldIntenthost, err := host.FindOne(host.ById(instanceName))
if err != nil {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Can't locate "+
"record inserted for intended host '%v' due to error: %v",
instanceName, err)
}
if oldIntenthost == nil {
return nil, evergreen.Logger.Errorf(slogger.ERROR, "Can't locate "+
"record inserted for intended host '%v'", instanceName)
}
err = oldIntenthost.Remove()
if err != nil {
evergreen.Logger.Logf(slogger.ERROR, "Could not remove intent host "+
"“%v”: %v", oldIntenthost.Id, err)
return nil, err
}
// create some tags based on user, hostname, owner, time, etc.
tags := makeTags(intentHost)
// attach the tags to this instance
err = attachTags(ec2Handle, tags, intentHost.Id)
if err != nil {
evergreen.Logger.Errorf(slogger.ERROR, "Unable to attach tags for %v: %v",
intentHost.Id, err)
} else {
evergreen.Logger.Logf(slogger.DEBUG, "Attached tag name “%v” for “%v”",
instanceName, intentHost.Id)
}
return intentHost, nil
}