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package common
import (
"fmt"
"log"
"sort"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/packer/packer"
)
// Artifact is an artifact implementation that contains built AMIs.
type Artifact struct {
// A map of regions to AMI IDs.
Amis map[string]string
// BuilderId is the unique ID for the builder that created this AMI
BuilderIdValue string
// EC2 connection for performing API stuff.
Conn *ec2.EC2
}
func (a *Artifact) BuilderId() string {
return a.BuilderIdValue
}
func (*Artifact) Files() []string {
// We have no files
return nil
}
func (a *Artifact) Id() string {
parts := make([]string, 0, len(a.Amis))
for region, amiId := range a.Amis {
parts = append(parts, fmt.Sprintf("%s:%s", region, amiId))
}
sort.Strings(parts)
return strings.Join(parts, ",")
}
func (a *Artifact) String() string {
amiStrings := make([]string, 0, len(a.Amis))
for region, id := range a.Amis {
single := fmt.Sprintf("%s: %s", region, id)
amiStrings = append(amiStrings, single)
}
sort.Strings(amiStrings)
return fmt.Sprintf("AMIs were created:\n\n%s", strings.Join(amiStrings, "\n"))
}
func (a *Artifact) State(name string) interface{} {
switch name {
case "atlas.artifact.metadata":
return a.stateAtlasMetadata()
default:
return nil
}
}
func (a *Artifact) Destroy() error {
errors := make([]error, 0)
for region, imageId := range a.Amis {
log.Printf("Deregistering image ID (%s) from region (%s)", imageId, region)
regionConfig := &aws.Config{
Credentials: a.Conn.Config.Credentials,
Region: aws.String(region),
}
session, err := session.NewSession(regionConfig)
if err != nil {
return err
}
regionConn := ec2.New(session)
// Get image metadata
imageResp, err := regionConn.DescribeImages(&ec2.DescribeImagesInput{
ImageIds: []*string{&imageId},
})
if err != nil {
errors = append(errors, err)
}
if len(imageResp.Images) == 0 {
err := fmt.Errorf("Error retrieving details for AMI (%s), no images found", imageId)
errors = append(errors, err)
}
// Deregister ami
input := &ec2.DeregisterImageInput{
ImageId: &imageId,
}
if _, err := regionConn.DeregisterImage(input); err != nil {
errors = append(errors, err)
}
// TODO(mitchellh): Delete the snapshots associated with an AMI too
}
if len(errors) > 0 {
if len(errors) == 1 {
return errors[0]
} else {
return &packer.MultiError{Errors: errors}
}
}
return nil
}
func (a *Artifact) stateAtlasMetadata() interface{} {
metadata := make(map[string]string)
for region, imageId := range a.Amis {
k := fmt.Sprintf("region.%s", region)
metadata[k] = imageId
}
return metadata
}
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