bash/aws_cli_cleanup_snapshots.sh at master · zeekus/bash · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
#!/bin/bash
#filename: aws_cli_cleanup_snapshots.sh
#author: Teddy Knab
#date: 12/14/2020
#description: clean up old snapshots

location_jq="/usr/bin/jq" #dependancy to parse the aws cli in json format
desired_runs=1000 #limit  desired_runs
debug=1 #set to 1 for debugging
regex_matcher="ec2ab_vol" #regular expression string to match
time_delay=5
number_of_days_old=363 #backups older than this many days

clear
printf "Warning. In %s seconds, %s snapshots with the name \'%s\' and older than \'%s\' days will be removed. Press Ctrl C to cancel.\n" $time_delay $desired_runs $regex_matcher $number_of_days_old
sleep $time_delay


if [[ -e $location_jq ]];then
  if [[ $debug -eq 1 ]]; then
    printf '%s\n' "debug: jq found ... running..."
    printf 'debug: running %s cleanup sequences\n' $desired_runs
    printf 'debug: regex_matcher value is \"%s\" \n' $regex_matcher
    printf 'debug: time_delay value is \"%s\"\n' $time_delay
    printf 'debug: number_of_days_old value is \"%s\"\n' $number_of_days_old
  fi
else
  exit
fi


#list of all the snapshots with regex_matcher
#list=$(aws ec2 describe-snapshots --owner self --output json | jq '.Snapshots[] | select(.StartTime < "'$(date --date='-1 year' '+%Y-%m-%d')'") | [.Description, .StartTime, .SnapshotId]' | grep -i $regex_matcher -A 2 | grep -i snap)
list=$(aws ec2 describe-snapshots --owner self --output json | jq '.Snapshots[] | select(.StartTime < "'$(date --date="-${number_of_days_old} days" '+%Y-%m-%d')'") | [.Description, .StartTime, .SnapshotId]' | grep -i $regex_matcher -A 2 | grep -i snap)

count=0 #counter
total_cleanup_size=0

for snap in $list
  do
  let count=($count+1)
  csnap=$(echo $snap | sed 's/"//g') #remove quotes

  if [[ $debug -eq 1 ]]; then
    aws ec2 describe-snapshots --snapshot-ids $csnap
  fi

  #creates a nested hash
  snapshot_description=$(aws ec2 describe-snapshots --snapshot-ids $csnap)

  desc=$(echo $snapshot_description| jq -r '.Snapshots[].Description') #description
  stime=$(echo $snapshot_description| jq -r '.Snapshots[].StartTime')
  volumesize=$(echo $snapshot_description| jq -r '.Snapshots[].VolumeSize')
  printf '\n%s > %s\n' $count "----------------------------------"
  printf '%s > Description: %s\n' $count $desc
  printf '%s > Start Time: %s\n'  $count $stime
  printf '%s > Volume Size: %s\n' $count $volumesize
  total_cleanup_size=$((total_cleanup_size + volumesize))

  tb_of_data=$(( total_cleanup_size / 1024))
  printf '%s > Total Cleanup Size: %s GB\n' $count $total_cleanup_size
  printf '%s > Total Cleanup Size: %s TB\n' $count $tb_of_data
  printf 'running... aws ec2 delete-snapshot --snapshot-id %s'  $csnap
  aws ec2 delete-snapshot --snapshot-id $csnap
  if [[ $? -eq 0 ]]; then
    printf '%s > %s\n' $count "successful"
  else
    printf '%s > %s\n' $count "failed"
    exit
  fi

  #end after count equals desired desired_runs
  if [ $count -eq $desired_runs ]; then
    exit
  fi
done