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delete-oldsnapshots.go
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delete-oldsnapshots.go
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package main
import (
"flag"
"fmt"
"log"
"time"
"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/aws/aws-sdk-go/service/ec2/ec2iface"
)
var (
awsRegion = flag.String("aws-region", "eu-west-2", "AWS_REGION")
ownerId = flag.String("owner-id", "754256621582", "OWNER_ID")
daysOld = flag.Int("days-old", 400, "DAYS_OLD")
)
// Delete snapshots older than given days
func deleteOldSnapshots(svc ec2iface.EC2API, days int) error {
output, err := svc.DescribeSnapshots(&ec2.DescribeSnapshotsInput{Filters: []*ec2.Filter{
{
Name: aws.String("owner-id"),
Values: []*string{
aws.String(*ownerId),
},
},
}})
if err != nil {
return err
}
time := time.Now().AddDate(0, 0, -1*days)
for _, snapshot := range output.Snapshots {
if snapshot.StartTime.Before(time) {
svc.DeleteSnapshot(&ec2.DeleteSnapshotInput{SnapshotId: snapshot.SnapshotId})
fmt.Println(*snapshot.SnapshotId, "deleted")
}
}
fmt.Printf("\nSnapshots deleted older than '%v' days", *daysOld)
return nil
}
func main() {
// Create AWS API Session
awsSession, err := session.NewSession(&aws.Config{
Region: aws.String(*awsRegion),
})
if err != nil {
log.Fatal("Error creating AWS session:", err.Error())
}
// Instantiate new EC2 client
svc := ec2.New(awsSession)
flag.Parse()
// Delete snapshots older than given no of days
err = deleteOldSnapshots(svc, *daysOld)
if err != nil {
log.Fatal("Error deleting old snapshots:", err.Error())
}
}