cloud engineer
Here’s how to describe snapshots using query with tags.
aws ec2 describe-snapshots \ --owner-ids xxxxxxxxxxx \ --profile default \ --region us-east-2 \ --output text \ --query "Snapshots[*].[SnapshotId,Tags[?Key=='Name'].Value[] | [0]]" |
aws ec2 describe-snapshots \ --owner-ids xxxxxxxxxxx \ --profile default \ --region us-east-2 \ --output text \ --query "Snapshots[*].[SnapshotId,Tags[?Key=='Name'].Value[] | [0]]"
Result.
snap-xxxxxxxxxxxxxxxxx Server1 snap-xxxxxxxxxxxxxxxxx Server2 |
snap-xxxxxxxxxxxxxxxxx Server1 snap-xxxxxxxxxxxxxxxxx Server2
Here’s how to copy a disk from one project to another.
gcloud compute disks create lamp-server \ --source-snapshot https://www.googleapis.com/compute/v1/projects/project-id/global/snapshots/lamp-server \ --project next-project-id \ --zone us-central1-a |
gcloud compute disks create lamp-server \ --source-snapshot https://www.googleapis.com/compute/v1/projects/project-id/global/snapshots/lamp-server \ --project next-project-id \ --zone us-central1-a
Once all the disks are copied. You can create a snapshot of the boot.
gcloud compute disks snapshot lamp-server |
gcloud compute disks snapshot lamp-server
Create an instance from snapshot.
gcloud compute disks create "hostname-boot" \ --project "project-id" \ --zone "us-central1-a" \ --source-snapshot "snapshot-name" \ --type "pd-standard" \ --size "100" |
gcloud compute disks create "hostname-boot" \ --project "project-id" \ --zone "us-central1-a" \ --source-snapshot "snapshot-name" \ --type "pd-standard" \ --size "100"
Here’s my script to delete AWS LightSail snapshots. It can delete daily or weekly backups and scheduled via crontab. If you want longer or shorter retention, adjust the expired value. It’s in seconds. 604800 is 1 week. 2592000 is 1 month.
#!/bin/bash current=$(date +%s) if [ $# -eq 0 ]; then exit 1 fi if [[ $1 = 'daily' ]]; then prefix='daily' expired=$(($current-604800)) elif [[ $1 = 'weekly' ]]; then prefix='weekly' expired=$(($current-2592000)) else exit 1 fi snaps='/root/snapshots/snapshots.json' names='/root/snapshots/names.txt' parse='/root/snapshots/parse.txt' logfile='/root/snapshots/snapshots.log' /usr/local/bin/aws lightsail get-instance-snapshots > $snaps cat $snaps | jq -r '.instanceSnapshots[] | .name' > $names cat $names | grep $prefix > $parse while read -r line; do snapshot=$(echo $line | cut -d_ -f3) snapshotname=$line if [ `expr $snapshot + 1 2> /dev/null` ] ; then if [ $snapshot -le $expired ]; then echo 'Deleted: '$snapshotname >> $logfile /usr/local/bin/aws lightsail delete-instance-snapshot \ --instance-snapshot-name $snapshotname else echo 'Nothing: '$snapshotname >> $logfile fi else echo $snapshot is not numeric > /dev/null fi done < $parse echo 'Current time: '$current >> $logfile echo 'Expired time: '$expired >> $logfile echo '-----------------------------------' >> $logfile |
#!/bin/bash current=$(date +%s) if [ $# -eq 0 ]; then exit 1 fi if [[ $1 = 'daily' ]]; then prefix='daily' expired=$(($current-604800)) elif [[ $1 = 'weekly' ]]; then prefix='weekly' expired=$(($current-2592000)) else exit 1 fi snaps='/root/snapshots/snapshots.json' names='/root/snapshots/names.txt' parse='/root/snapshots/parse.txt' logfile='/root/snapshots/snapshots.log' /usr/local/bin/aws lightsail get-instance-snapshots > $snaps cat $snaps | jq -r '.instanceSnapshots[] | .name' > $names cat $names | grep $prefix > $parse while read -r line; do snapshot=$(echo $line | cut -d_ -f3) snapshotname=$line if [ `expr $snapshot + 1 2> /dev/null` ] ; then if [ $snapshot -le $expired ]; then echo 'Deleted: '$snapshotname >> $logfile /usr/local/bin/aws lightsail delete-instance-snapshot \ --instance-snapshot-name $snapshotname else echo 'Nothing: '$snapshotname >> $logfile fi else echo $snapshot is not numeric > /dev/null fi done < $parse echo 'Current time: '$current >> $logfile echo 'Expired time: '$expired >> $logfile echo '-----------------------------------' >> $logfile
Schedule deletes via crontab.
# run daily at 5am 0 5 * * * /bin/bash /root/snapshots/delete-snapshot.sh daily 2>&1 # run weekly every sunday at 6am 0 6 * * 0 /bin/bash /root/snapshots/delete-snapshot.sh weekly 2>&1 |
# run daily at 5am 0 5 * * * /bin/bash /root/snapshots/delete-snapshot.sh daily 2>&1 # run weekly every sunday at 6am 0 6 * * 0 /bin/bash /root/snapshots/delete-snapshot.sh weekly 2>&1