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Hace respaldos (snapshots) de volumenes EBS y las mantiene por 7 días
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| ## Variables | |
| $nombre = "Mi_Instancia" | |
| $fecha = Get-Date -Format "yyMMdd-HHmm" | |
| $7dias = (Get-Date).addhours(-165) | |
| $instancia = Get-EC2Instance | select -expandproperty RunningInstance | ? {$_.Tag.Key -eq "Name" -and $_.Tag.Value -eq $nombre} | |
| $id = $instancia.InstanceId | |
| $discos = Get-EC2Volume | Where-Object {$_.Attachment.InstanceId -eq $id} | |
| ## Loop para generar snapshots de todos los volumenes EBS attachados a la instancia | |
| foreach( $disco in $discos ) { | |
| $volumen = $disco.VolumeId | |
| $description = "backup-$fecha-$nombre-$volumen" | |
| ## Snapshots a mí!! | |
| New-EC2Snapshot -VolumeId $disco.VolumeId -Description $description | |
| ## Elimina todos los snapshots que tengan mas de 7 días (Bueno... lo que se haya definido en la variable "$7dias") | |
| $oldsnapshots = Get-EC2Snapshot | ? {$_.VolumeId -eq $disco.VolumeId -and $_.StartTime -lt $7dias} | |
| foreach( $oldsnapshot in $oldsnapshots ) { | |
| Remove-EC2Snapshot -SnapshotId $oldsnapshot.SnapshotId -Force | |
| } | |
| } |
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