move to unix time for ec2-automate-backup-awscli.sh
This commit is contained in:
Colin Johnson
parent
00a9a05085
commit
9479e6390c
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@ -1,52 +1,59 @@
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ec2ab_exec="/Temp/ec2-automate-backup.sh"
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#create two volumes
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volume_1=`ec2-create-volume --size 2 GB --availability-zone us-east-1a`
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volume_2=`ec2-create-volume --size 2 GB --availability-zone us-east-1a`
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#get volume id of both volumes
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volume_1_id=`echo "$volume_1" | cut -f 2`
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volume_2_id=`echo "$volume_2" | cut -f 2`
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#tag volume_1 with Backup=true
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ec2-create-tags $volume_1_id --tag Backup=true
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#test backing up only volume with tag Backup=true
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# if testing ec2-automate-backup.sh
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$ec2ab_exec -s tag -t Backup=true
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# if testing ec2-automate-backup-awscli.sh
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$ec2ab_exec -s tag -t Backup,Values=true
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#expected result - snapshot only taken of volume_1
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#
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#test backing up only EBS volume with IDs "x" and "y"
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$ec2ab_exec -v "$volume_1_id $volume_2_id"
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#expected result - snapshot only taken of volume_1 and volume_2
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with "name"
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -n
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#expected result - snapshot only taken of volume_1 and volume_2 each with tag "name" set to ec2ab_$volume_id_$current_date
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with "user tags"
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -u
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#expected result - snapshot only taken of volume_1 and volume_2 each with tag "user tags" set to Volume=$ebs_selected and Created=$current_date
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with a tag "PurgeAfterFE=$current_date+604800"
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -k 7
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echo "PurgeAfterFE=`date -v +604800S -u +%s`"
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echo "PurgeAfterFE=`date -d +604800sec -u +%s`"
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#expected result - snapshot taken of volume_1 and volume_2 each with tags "PurgeAfterFE=$current_date+604800" and "PurgeAllow=true"
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with a tag "PurgeAfterFE=$current_date+604800"
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -k 7 -n
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echo "PurgeAfterFE=`date -v+604800S -u +%s`"
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echo "PurgeAfterFE=`date -d +604800sec -u +%s`"
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#expected result - snapshot taken of volume_1 and volume_2 each with tag "name" set to ec2ab_$volume_id_$date_current a with a tag "PurgeAfterFE=$current_date+604800"
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with a tag "PurgeAfterFE=$current_date+3600"
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -k 1h -n
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echo "PurgeAfterFE=`date -v+3600S -u +%s`"
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echo "PurgeAfterFE=`date -d +3600sec -u +%s`"
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#expected result - snapshot taken of volume_1 and volume_2 each with tag "name" set to ec2ab_$volume_id_$date_current a with a tag "PurgeAfterFE=$current_date+3600"
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with a tag "PurgeAfterFE=$current_date+3600"
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -k 30m -n
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echo "PurgeAfterFE=`date -v+1800S -u +%s`"
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echo "PurgeAfterFE=`date -d +1800sec -u +%s`"
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#expected result - snapshot taken of volume_1 and volume_2 each with tag "name" set to ec2ab_$volume_id_$date_current a with a tag "PurgeAfterFE=$current_date+3600"
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#
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#test backing up only EBS volume with IDs "x" and "y" and tagging them with a tag "PurgeAfterFE=$current_date+60" and purging snapshots
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$ec2ab_exec -v "$volume_1_id $volume_2_id" -k 1m -n -p
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echo "PurgeAfterFE=`date -v+60S -u +%s`"
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@ -1,15 +1,22 @@
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#!/bin/bash -
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# Author: Colin Johnson / colin@cloudavail.com
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# Contributors: buckelij / https://github.com/buckelij
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# Date: 2014-04-12
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# Version 0.9
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# Version 0.10
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# License Type: GNU GENERAL PUBLIC LICENSE, Version 3
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#
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# Author:
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# Colin Johnson / https://github.com/colinbjohnson / colin@cloudavail.com
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# Contributors:
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# Alex Corley / https://github.com/anthroprose
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# Jon Higgs / https://github.com/jonhiggs
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# Mike / https://github.com/eyesis
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# Jeff Vogt / https://github.com/jvogt
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# Dave Stern / https://github.com/davestern
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# Josef / https://github.com/J0s3f
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# buckelij / https://github.com/buckelij
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#confirms that executables required for succesful script execution are available
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prerequisite_check()
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{
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for prerequisite in basename aws date cut
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for prerequisite in basename cut date aws
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do
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#use of "hash" chosen as it is a shell builtin and will add programs to hash table, possibly speeding execution. Use of type also considered - open to suggestions.
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hash $prerequisite &> /dev/null
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@ -29,7 +36,7 @@ get_EBS_List()
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fi
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ebs_selection_string="--volume-ids $volumeid"
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;;
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tag)
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tag)
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if [[ -z $tag ]]
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then echo "The selected selection_method \"tag\" (-s tag) requires a valid tag (-t Backup,Values=true) for operation. Correct usage is as follows: \"-s tag -t Backup,Values=true.\"" 1>&2 ; exit 64
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fi
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@ -46,36 +53,35 @@ get_EBS_List()
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fi
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#returns the list of EBS volumes that matched ebs_selection_string. grep ^VOLUMES is to remove lines that begin "TAGS Backup"
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ebs_backup_list=`echo "$ebs_backup_list_complete" | grep ^VOLUMES | cut -f 7`
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#code to right will output list of EBS volumes to be backed up: echo -e "Now outputting ebs_backup_list:\n$ebs_backup_list"
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}
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create_EBS_Snapshot_Tags()
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{
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#snapshot tags holds all tags that need to be applied to a given snapshot - by aggregating tags we ensure that ec2-create-tags is called only onece
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snapshot_tags=""
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#if $name_tag_create is true then append ec2ab_${ebs_selected}_$date_current to the variable $snapshot_tags
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#if $name_tag_create is true then append ec2ab_${ebs_selected}_$current_date to the variable $snapshot_tags
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if $name_tag_create
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then
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snapshot_tags="$snapshot_tags Key=Name,Value=ec2ab_${ebs_selected}_$date_current"
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snapshot_tags="$snapshot_tags Key=Name,Value=ec2ab_${ebs_selected}_$current_date"
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fi
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#if $hostname_tag_create is true then append --tag InitiatingHost=`hostname -f` to the variable $snapshot_tags
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if $hostname_tag_create
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then
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snapshot_tags="$snapshot_tags Key=InitiatingHost,Value='`hostname -f`'"
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fi
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#if $purge_after_days is true, then append $purge_after_date to the variable $snapshot_tags
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if [[ -n $purge_after_days ]]
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#if $purge_after_date_fe is true, then append $purge_after_date_fe to the variable $snapshot_tags
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if [[ -n $purge_after_date_fe ]]
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then
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snapshot_tags="$snapshot_tags Key=PurgeAfter,Value=$purge_after_date Key=PurgeAllow,Value=true"
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snapshot_tags="$snapshot_tags Key=PurgeAfterFE,Value=$purge_after_date_fe Key=PurgeAllow,Value=true"
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fi
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#if $user_tags is true, then append Volume=$ebs_selected and Created=$current_date to the variable $snapshot_tags
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if $user_tags
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then
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snapshot_tags="$snapshot_tags Key=Volume,Value=${ebs_selected} Key=Created,Value=$date_current"
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snapshot_tags="$snapshot_tags Key=Volume,Value=${ebs_selected} Key=Created,Value=$current_date"
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fi
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#if $snapshot_tags is not zero length then set the tag on the snapshot using ec2-create-tags
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#if $snapshot_tags is not zero length then set the tag on the snapshot using aws ec2 create-tags
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if [[ -n $snapshot_tags ]]
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then echo "Tagging Snapshot $ec2_snapshot_resource_id with the following Tags: $snapshot_tags"
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tags_arugment="--tags $snapshot_tags"
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@ -83,7 +89,7 @@ create_EBS_Snapshot_Tags()
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fi
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}
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date_binary_get()
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get_date_binary()
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{
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#`uname -o (operating system) would be ideal, but OS X / Darwin does not support to -o option`
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#`uname` on OS X defaults to `uname -s` and `uname` on GNU/Linux defaults to `uname -s`
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@ -95,59 +101,50 @@ date_binary_get()
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esac
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}
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get_purge_after_date()
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get_purge_after_date_fe()
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{
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case $purge_after_input in
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#any number of numbers followed by a letter "d" or "days" multiplied by 86400 (number of seconds in a day)
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[0-9]*d) purge_after_value_seconds=$(( ${purge_after_input%?} * 86400 )) ;;
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#any number of numbers followed by a letter "h" or "hours" multiplied by 3600 (number of seconds in an hour)
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[0-9]*h) purge_after_value_seconds=$(( ${purge_after_input%?} * 3600 )) ;;
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#any number of numbers followed by a letter "m" or "minutes" multiplied by 60 (number of seconds in a minute)
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[0-9]*m) purge_after_value_seconds=$(( ${purge_after_input%?} * 60 ));;
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#no trailing digits default is days - multiply by 86400 (number of minutes in a day)
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*) purge_after_value_seconds=$(( $purge_after_input * 86400 ));;
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esac
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#based on the date_binary variable, the case statement below will determine the method to use to determine "purge_after_days" in the future
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case $date_binary in
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linux-gnu) echo `date -d +${purge_after_days}days -u +%Y-%m-%d` ;;
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osx-posix) echo `date -v+${purge_after_days}d -u +%Y-%m-%d` ;;
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*) echo `date -d +${purge_after_days}days -u +%Y-%m-%d` ;;
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esac
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}
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get_purge_after_date_epoch()
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{
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#based on the date_binary variable, the case statement below will determine the method to use to determine "purge_after_date_epoch" in the future
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case $date_binary in
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linux-gnu) echo `date -d $purge_after_date +%s` ;;
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osx-posix) echo `date -j -f "%Y-%m-%d" $purge_after_date "+%s"` ;;
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*) echo `date -d $purge_after_date +%s` ;;
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esac
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}
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get_date_current_epoch()
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{
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#based on the date_binary variable, the case statement below will determine the method to use to determine "date_current_epoch" in the future
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case $date_binary in
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linux-gnu) echo `date -d $date_current +%s` ;;
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osx-posix) echo `date -j -f "%Y-%m-%d" $date_current "+%s"` ;;
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*) echo `date -d $date_current +%s` ;;
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linux-gnu) echo `date -d +${purge_after_value_seconds}sec -u +%s` ;;
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osx-posix) echo `date -v +${purge_after_value_seconds}S -u +%s` ;;
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*) echo `date -d +${purge_after_value_seconds}sec -u +%s` ;;
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esac
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}
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purge_EBS_Snapshots()
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{
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#snapshot_tag_list is a string that contains all snapshots with either the key PurgeAllow set to true. grep ^SNAPSHOTS filters not needed return values
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# snapshot_tag_list is a string containing any snapshot that contains a tag
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# with the key value/pair PurgeAllow=true
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snapshot_tag_list=`aws ec2 describe-snapshots --region $region --filters Name=tag:PurgeAllow,Values=true --output text | grep ^SNAPSHOTS`
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#snapshot_purge_allowed is a list of all snapshot_ids with PurgeAllow=true
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# snapshot_purge_allowed is a string containing Snapshot IDs that are
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# allowed to be purged
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snapshot_purge_allowed=`echo "$snapshot_tag_list" | cut -f 5`
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for snapshot_id_evaluated in $snapshot_purge_allowed
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do
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#gets the "PurgeAfter" date which is in UTC with YYYY-MM-DD format (or %Y-%m-%d)
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purge_after_date=`aws ec2 describe-snapshots --region $region --snapshot-ids $snapshot_id_evaluated --output text | grep ^TAGS.*PurgeAfter | cut -f 3`
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#gets the "PurgeAfterFE" date which is in UTC with UNIX Time format (or xxxxxxxxxx / %s)
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purge_after_fe=`aws ec2 describe-snapshots --region $region --snapshot-ids $snapshot_id_evaluated --output text | grep ^TAGS.*PurgeAfterFE | cut -f 3`
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#if purge_after_date is not set then we have a problem. Need to alert user.
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if [[ -z $purge_after_date ]]
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#Alerts user to the fact that a Snapshot was found with PurgeAllow=true but with no PurgeAfter date.
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then echo "A Snapshot with the Snapshot ID $snapshot_id_evaluated has the tag \"PurgeAllow=true\" but does not have a \"PurgeAfter=YYYY-MM-DD\" date. $app_name is unable to determine if $snapshot_id_evaluated should be purged." 1>&2
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if [[ -z $purge_after_fe ]]
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#Alerts user to the fact that a Snapshot was found with PurgeAllow=true but with no PurgeAfterFE date.
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then echo "A Snapshot with the Snapshot ID $snapshot_id_evaluated has the tag \"PurgeAllow=true\" but does not have a \"PurgeAfterFE=xxxxxxxxxx\" key/value pair. $app_name is unable to determine if $snapshot_id_evaluated should be purged." 1>&2
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else
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#convert both the date_current and purge_after_date into epoch time to allow for comparison
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date_current_epoch=`get_date_current_epoch`
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purge_after_date_epoch=`get_purge_after_date_epoch`
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#perform compparison - if $purge_after_date_epoch is a lower number than $date_current_epoch than the PurgeAfter date is earlier than the current date - and the snapshot can be safely removed
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if [[ $purge_after_date_epoch < $date_current_epoch ]]
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# if $purge_after_fe is less than $current_date then
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# PurgeAfterFE is earlier than the current date
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# and the snapshot can be safely purged
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if [[ $purge_after_fe < $current_date ]]
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then
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echo "The snapshot \"$snapshot_id_evaluated\" with the Purge After date of $purge_after_date will be deleted."
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echo "The snapshot \"$snapshot_id_evaluated\" with the PurgeAfterFE date of $purge_after_fe will be deleted."
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aws_ec2_delete_snapshot_result=`aws ec2 delete-snapshot --region $region --snapshot-id $snapshot_id_evaluated --output text 2>&1`
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fi
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fi
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@ -163,9 +160,9 @@ date_binary=""
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name_tag_create=false
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#sets the "InitiatingHost" tag set for a snapshot to false
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hostname_tag_create=false
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#sets the user_tags feature to false - user_tag creates tags on snapshots - by default each snapshot is tagged with volume_id and current_data timestamp
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#sets the user_tags feature to false - user_tag creates tags on snapshots - by default each snapshot is tagged with volume_id and current_date timestamp
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user_tags=false
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#sets the Purge Snapshot feature to false - this feature will eventually allow the removal of snapshots that have a "PurgeAfter" tag that is earlier than current date
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#sets the Purge Snapshot feature to false - if purge_snapshots=true then snapshots will be purged
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purge_snapshots=false
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#handles options processing
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@ -177,7 +174,7 @@ while getopts :s:c:r:v:t:k:pnhu opt
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r) region="$OPTARG";;
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v) volumeid="$OPTARG";;
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t) tag="$OPTARG";;
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k) purge_after_days="$OPTARG";;
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k) purge_after_input="$OPTARG";;
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n) name_tag_create=true;;
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h) hostname_tag_create=true;;
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p) purge_snapshots=true;;
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@ -188,7 +185,7 @@ while getopts :s:c:r:v:t:k:pnhu opt
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#sources "cron_primer" file for running under cron or other restricted environments - this file should contain the variables and environment configuration required for ec2-automate-backup to run correctly
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if [[ -n $cron_primer ]]
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then if [[ -f $cron_primer ]]
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then if [[ -f $cron_primer ]]
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then source $cron_primer
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else
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echo "Cron Primer File \"$cron_primer\" Could Not Be Found." 1>&2 ; exit 70
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@ -199,7 +196,7 @@ fi
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if [[ -z $region ]]
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#if the environment variable $EC2_REGION is not set set to us-east-1
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then if [[ -z $EC2_REGION ]]
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#if both
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#if both
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then region="us-east-1"
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else
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region=$EC2_REGION
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@ -210,16 +207,17 @@ fi
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prerequisite_check
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#sets date variable
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date_current=`date -u +%Y-%m-%d`
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#sets the PurgeAfter tag to the number of days that a snapshot should be retained
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if [[ -n $purge_after_days ]]
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current_date=`date -u +%s`
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#sets the PurgeAfterFE tag to the number of seconds that a snapshot should be retained
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if [[ -n $purge_after_input ]]
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then
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#if the date_binary is not set, call the date_binary_get function
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#if the date_binary is not set, call the get_date_binary function
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if [[ -z $date_binary ]]
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then date_binary_get
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then get_date_binary
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fi
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purge_after_date=`get_purge_after_date`
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echo "Snapshots taken by $app_name will be eligible for purging after the following date: $purge_after_date."
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purge_after_date_fe=`get_purge_after_date_fe`
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echo "Snapshots taken by $app_name will be eligible for purging after the following date (the purge after date given in seconds from epoch): $purge_after_date_fe."
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fi
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#get_EBS_List gets a list of EBS instances for which a snapshot is desired. The list of EBS instances depends upon the selection_method that is provided by user input
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@ -228,7 +226,7 @@ get_EBS_List
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#the loop below is called once for each volume in $ebs_backup_list - the currently selected EBS volume is passed in as "ebs_selected"
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for ebs_selected in $ebs_backup_list
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do
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ec2_snapshot_description="ec2ab_${ebs_selected}_$date_current"
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ec2_snapshot_description="ec2ab_${ebs_selected}_$current_date"
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ec2_create_snapshot_result=`aws ec2 create-snapshot --region $region --description $ec2_snapshot_description --volume-id $ebs_selected --output text 2>&1`
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if [[ $? != 0 ]]
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then echo -e "An error occured when running ec2-create-snapshot. The error returned is below:\n$ec2_create_snapshot_result" 1>&2 ; exit 70
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@ -16,7 +16,7 @@
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#confirms that executables required for succesful script execution are available
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prerequisite_check()
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{
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for prerequisite in basename ec2-create-snapshot ec2-create-tags ec2-describe-snapshots ec2-delete-snapshot date
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for prerequisite in basename cut date ec2-create-snapshot ec2-create-tags ec2-delete-snapshot ec2-describe-snapshots
|
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do
|
||||
#use of "hash" chosen as it is a shell builtin and will add programs to hash table, possibly speeding execution. Use of type also considered - open to suggestions.
|
||||
hash $prerequisite &> /dev/null
|
||||
|
|
@ -51,6 +51,7 @@ get_EBS_List()
|
|||
if [[ $ebs_backup_list_result -gt 0 ]]
|
||||
then echo -e "An error occured when running ec2-describe-volumes. The error returned is below:\n$ebs_backup_list_complete" 1>&2 ; exit 70
|
||||
fi
|
||||
#returns the list of EBS volumes that matched ebs_selection_string.
|
||||
ebs_backup_list=`echo "$ebs_backup_list_complete" | grep ^VOLUME | cut -f 2`
|
||||
}
|
||||
|
||||
|
|
@ -61,8 +62,6 @@ create_EBS_Snapshot_Tags()
|
|||
#if $name_tag_create is true then append ec2ab_${ebs_selected}_$current_date to the variable $snapshot_tags
|
||||
if $name_tag_create
|
||||
then
|
||||
# possible duplicate code ec2_snapshot_resource_id=`echo "$ec2_create_snapshot_result" | cut -f 2`
|
||||
ec2_snapshot_resource_id=`echo "$ec2_create_snapshot_result" | cut -f 2`
|
||||
snapshot_tags="$snapshot_tags --tag Name=ec2ab_${ebs_selected}_$current_date"
|
||||
fi
|
||||
#if $hostname_tag_create is true then append --tag InitiatingHost=`hostname -f` to the variable $snapshot_tags
|
||||
|
|
@ -84,7 +83,7 @@ create_EBS_Snapshot_Tags()
|
|||
|
||||
#if $snapshot_tags is not zero length then set the tag on the snapshot using ec2-create-tags
|
||||
if [[ -n $snapshot_tags ]]
|
||||
then echo "Tagging Snapshot $ec2_snapshot_resource_id with the following Tags:"
|
||||
then echo "Tagging Snapshot $ec2_snapshot_resource_id with the following Tags: $snapshot_tags"
|
||||
ec2-create-tags $ec2_snapshot_resource_id --region $region $snapshot_tags
|
||||
fi
|
||||
}
|
||||
|
|
@ -123,24 +122,30 @@ esac
|
|||
|
||||
purge_EBS_Snapshots()
|
||||
{
|
||||
#snapshot_tag_list is a string that contains all snapshots with either the key PurgeAllow or PurgeAfterFE set
|
||||
# snapshot_tag_list is a string containing any snapshot that contains
|
||||
# either the key PurgeAllow or the key PurgeAfterFE
|
||||
# note that filtering for *both* keys is a requirement or else the
|
||||
# PurgeAfterFE key/value pair will not be returned
|
||||
snapshot_tag_list=`ec2-describe-tags --show-empty-fields --region $region --filter resource-type=snapshot --filter key=PurgeAllow,PurgeAfterFE`
|
||||
#snapshot_purge_allowed is a list of all snapshot_ids with PurgeAllow=true
|
||||
# snapshot_purge_allowed is a string containing Snapshot IDs that are
|
||||
# allowed to be purged
|
||||
snapshot_purge_allowed=`echo "$snapshot_tag_list" | grep .*PurgeAllow'\s'true | cut -f 3`
|
||||
|
||||
for snapshot_id_evaluated in $snapshot_purge_allowed
|
||||
do
|
||||
#gets the "PurgeAfterFE" date which is in UTC with UNIX Time format (or xxxxxxxxxx / %s)
|
||||
purge_after_date_fe_tag=`echo "$snapshot_tag_list" | grep .*$snapshot_id_evaluated'\s'PurgeAfterFE.* | cut -f 5`
|
||||
purge_after_fe=`echo "$snapshot_tag_list" | grep .*$snapshot_id_evaluated'\s'PurgeAfterFE.* | cut -f 5`
|
||||
#if purge_after_date is not set then we have a problem. Need to alert user.
|
||||
if [[ -z $purge_after_date_fe_tag ]]
|
||||
if [[ -z $purge_after_fe ]]
|
||||
#Alerts user to the fact that a Snapshot was found with PurgeAllow=true but with no PurgeAfterFE date.
|
||||
then echo "A Snapshot with the Snapshot ID $snapshot_id_evaluated has the tag \"PurgeAllow=true\" but does not have a \"PurgeAfterFE=xxxxxxxxxx\" date where PurgeAfterFE is UNIX time. $app_name is unable to determine if $snapshot_id_evaluated should be purged." 1>&2
|
||||
then echo "A Snapshot with the Snapshot ID $snapshot_id_evaluated has the tag \"PurgeAllow=true\" but does not have a \"PurgeAfterFE=xxxxxxxxxx\" key/value pair. $app_name is unable to determine if $snapshot_id_evaluated should be purged." 1>&2
|
||||
else
|
||||
#perform comparison - if $purge_after_date_epoch is a lower number than $current_date_epoch than the PurgeAfterFE date is earlier than the current date - and the snapshot can be safely removed
|
||||
if [[ $purge_after_date_fe_tag < $current_date ]]
|
||||
# if $purge_after_fe is less than $current_date then
|
||||
# PurgeAfterFE is earlier than the current date
|
||||
# and the snapshot can be safely purged
|
||||
if [[ $purge_after_fe < $current_date ]]
|
||||
then
|
||||
echo "The snapshot \"$snapshot_id_evaluated\" with the PurgeAfterFE date of $purge_after_date_fe_tag will be deleted."
|
||||
echo "Snapshot \"$snapshot_id_evaluated\" with the PurgeAfterFE date of $purge_after_fe will be deleted."
|
||||
ec2-delete-snapshot --region $region $snapshot_id_evaluated
|
||||
fi
|
||||
fi
|
||||
|
|
@ -158,7 +163,7 @@ name_tag_create=false
|
|||
hostname_tag_create=false
|
||||
#sets the user_tags feature to false - user_tag creates tags on snapshots - by default each snapshot is tagged with volume_id and current_date timestamp
|
||||
user_tags=false
|
||||
#sets the Purge Snapshot feature to false - this feature will eventually allow the removal of snapshots that have a "PurgeAfterFE" tag that is earlier than current date
|
||||
#sets the Purge Snapshot feature to false - if purge_snapshots=true then snapshots will be purged
|
||||
purge_snapshots=false
|
||||
#handles options processing
|
||||
|
||||
|
|
@ -236,4 +241,4 @@ done
|
|||
if $purge_snapshots
|
||||
then echo "Snapshot Purging is Starting Now."
|
||||
purge_EBS_Snapshots
|
||||
fi
|
||||
fi
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user