Snapshot all disks in current project with Google Cloud Console

snapshot.sh

#!/bin/bash
# 
# Inspired by http://gcloud-script-disk-snapshot.blogspot.co.uk/2015/04/gcloud-snapshot-script.html
#
#Delete the snapshots older than 7 days
retention_preiod=7
removal_date=`date --date="$retention_preiod days ago" +%Y%m%d%H%M%S`
dt=`date +%Y%m%d%H%M%S`
echo $dt
#Delimiter to exclude is "\|"
exclude_list="NAME"
all_disks=`gcloud compute disks list |awk '{print $1"="$2}'|grep -v $exclude_list`
for line in `echo -e $all_disks` ;do
  zone=`echo $line |awk -F"=" '{print $2}'`
  disks=`echo $line |awk  -F"=" '{print $1}'`
  gcloud compute disks snapshot $disks --zone $zone --snapshot-name "snapshot-$disks-$dt"
done
#Code to delete the older snapshots
#Mention snapshots which you do not want to delete
exclude_snap=""
snapshot_list=`gcloud compute snapshots list|grep snapshot|awk '{print $1}'|grep -v "$exclude_snap"`
for list in `echo $snapshot_list`;do
  backup_date=`echo $list |awk -F "-" '{print $2}'`
  if [ $backup_date -le $removal_date ];then
    echo "Delete the backup $list"
    gcloud compute snapshots delete $list -q
  fi
done