func (clst *amazonCluster) tagSpotRequests(awsIDs []awsID) error {
OuterLoop:
for region, ids := range groupByRegion(awsIDs) {
session := clst.getSession(region)
spotIDs := getSpotIDs(ids)
var err error
for i := 0; i < 30; i++ {
_, err = session.CreateTags(&ec2.CreateTagsInput{
Tags: []*ec2.Tag{
{
Key: aws.String(clst.namespace),
Value: aws.String(""),
},
},
Resources: aws.StringSlice(spotIDs),
})
if err == nil {
continue OuterLoop
}
time.Sleep(5 * time.Second)
}
log.Warn("Failed to tag spot requests: ", err)
session.CancelSpotInstanceRequests(
&ec2.CancelSpotInstanceRequestsInput{
SpotInstanceRequestIds: aws.StringSlice(spotIDs),
})
return err
}
return nil
}
func (clst amazonCluster) Stop(machines []Machine) error {
var awsIDs []awsID
for _, m := range machines {
awsIDs = append(awsIDs, awsID{
region: m.Region,
spotID: m.ID,
})
}
for region, ids := range groupByRegion(awsIDs) {
session := clst.getSession(region)
spotIDs := getSpotIDs(ids)
spots, err := session.DescribeSpotInstanceRequests(
&ec2.DescribeSpotInstanceRequestsInput{
SpotInstanceRequestIds: aws.StringSlice(spotIDs),
})
if err != nil {
return err
}
instIds := []string{}
for _, spot := range spots.SpotInstanceRequests {
if spot.InstanceId != nil {
instIds = append(instIds, *spot.InstanceId)
}
}
if len(instIds) > 0 {
_, err = session.TerminateInstances(&ec2.TerminateInstancesInput{
InstanceIds: aws.StringSlice(instIds),
})
if err != nil {
return err
}
}
_, err = session.CancelSpotInstanceRequests(
&ec2.CancelSpotInstanceRequestsInput{
SpotInstanceRequestIds: aws.StringSlice(spotIDs),
})
if err != nil {
return err
}
if err := clst.wait(ids, false); err != nil {
return err
}
}
return nil
}