// createAMIs actually creates the AMI(s)
func createAMIs(awsec2 *ec2.EC2, instances []ec2.Instance, s *session) map[string]string {
newAMIs := make(map[string]string)
pendingAMIs := make(map[string]bool)
for _, instance := range instances {
backupAmiName := fmt.Sprintf("%s-%s-%s", s.instanceNameTag, timeStamp, instance.InstanceId)
backupDesc := fmt.Sprintf("%s %s %s", s.instanceNameTag, timeString, instance.InstanceId)
blockDevices := []ec2.BlockDeviceMapping{}
for _, i := range s.ignoreVolumes {
blockDevices = append(blockDevices, ec2.BlockDeviceMapping{DeviceName: i, NoDevice: true})
}
createOpts := ec2.CreateImage{
InstanceId: instance.InstanceId,
Name: backupAmiName,
Description: backupDesc,
NoReboot: true,
BlockDevices: blockDevices,
}
resp, err := awsec2.CreateImage(&createOpts)
if err != nil {
s.fatal(fmt.Sprintf("Error creating new AMI: %s", err.Error()))
}
_, err = awsec2.CreateTags([]string{resp.ImageId}, []ec2.Tag{
{"hostname", s.instanceNameTag},
{"instance", instance.InstanceId},
{"date", timeString},
{"timestamp", timeSecs},
})
if err != nil {
s.fatal(fmt.Sprintf("Error tagging new AMI: %s", err.Error()))
}
newAMIs[resp.ImageId] = instance.InstanceId
pendingAMIs[resp.ImageId] = true
s.debug(fmt.Sprintf("Creating new AMI %s for %s (%s)", resp.ImageId, s.instanceNameTag, instance.InstanceId))
}
// wait for AMIs to be ready
done := make(chan bool)
go func() {
for len(pendingAMIs) > 0 {
s.debug(fmt.Sprintf("Sleeping for %d pending AMIs", len(pendingAMIs)))
time.Sleep(apiPollInterval)
list := []string{}
for k, _ := range pendingAMIs {
list = append(list, k)
}
images, err := awsec2.Images(list, nil)
if err != nil {
s.fatal("EC2 API Images failed")
}
for _, image := range images.Images {
if image.State == "available" {
delete(pendingAMIs, image.Id)
s.ok(fmt.Sprintf("Created new AMI %s", image.Id))
}
}
}
done <- true
}()
select {
case <-done:
case <-time.After(s.timeout):
list := []string{}
for k, _ := range pendingAMIs {
list = append(list, k)
}
s.fatal(fmt.Sprintf("Timeout waiting for AMIs in region %s: %s", s.sourceRegion.Name, strings.Join(list, " ,")))
}
return newAMIs
}