Region Copy: -g and -d options to tag and initiate region copies
-g tested with new backups using: bash ec2-automate-backup.sh -v 'vol-8a1a43f6 vol-2a78d459' -g 'us-west-1 us-west-2' -n -d tested with various options and repeated calls to test idempotent copies: bash ec2-automate-backup.sh -s regioncopy -d 'us-west-1' bash ec2-automate-backup.sh -s regioncopy -d 'us-west-1' bash ec2-automate-backup.sh -s regioncopy -d 'us-west-1 us-west-2' bash ec2-automate-backup.sh -s regioncopy -d 'us-west-2' etc.
This commit is contained in:
Dave Stern
parent
34def1a7a1
commit
09cee91c56
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@ -27,27 +27,38 @@ get_EBS_List()
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fi
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ebs_selection_string="$volumeid"
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;;
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tag)
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tag)
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if [[ -z $tag ]]
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then echo "The selected selection_method \"tag\" (-s tag) requires a valid tag (-t key=value) for operation. Correct usage is as follows: \"-s tag -t backup=true\" or \"-s tag -t Name=my_tag.\"" 1>&2 ; exit 64
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fi
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ebs_selection_string="--filter tag:$tag"
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;;
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regioncopy)
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if [[ -z $region_copy_destinations ]]
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then echo "The selected selection_method \"regioncopy\" (-s regioncopy) requires valid region names (-d '[region name(s)]') or 'all' for operation. Correct usage is as follows: \"-s regioncopy -d 'us-west-1'\" or \"-s regioncopy -d 'us-west-1 us-west-2'.\"" 1>&2 ; exit 64
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fi
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;;
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*) echo "If you specify a selection_method (-s selection_method) for selecting EBS volumes you must select either \"volumeid\" (-s volumeid) or \"tag\" (-s tag)." 1>&2 ; exit 64 ;;
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esac
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#creates a list of all ebs volumes that match the selection string from above
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ebs_backup_list_complete=`ec2-describe-volumes --show-empty-fields --region $region $ebs_selection_string 2>&1`
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#takes the output of the previous command
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ebs_backup_list_result=`echo $?`
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if [[ $ebs_backup_list_result -gt 0 ]]
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then echo -e "An error occured when running ec2-describe-volumes. The error returned is below:\n$ebs_backup_list_complete" 1>&2 ; exit 70
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if [[ -n $ebs_selection_string ]]
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then
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#creates a list of all ebs volumes that match the selection string from above
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ebs_backup_list_complete=`ec2-describe-volumes --show-empty-fields --region $region $ebs_selection_string 2>&1`
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#takes the output of the previous command
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ebs_backup_list_result=`echo $?`
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if [[ $ebs_backup_list_result -gt 0 ]]
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then echo -e "An error occured when running ec2-describe-volumes. The error returned is below:\n$ebs_backup_list_complete" 1>&2 ; exit 70
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fi
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ebs_backup_list=`echo "$ebs_backup_list_complete" | grep ^VOLUME | cut -f 2`
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#code to right will output list of EBS volumes to be backed up: echo -e "Now outputting ebs_backup_list:\n$ebs_backup_list"
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fi
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ebs_backup_list=`echo "$ebs_backup_list_complete" | grep ^VOLUME | cut -f 2`
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#code to right will output list of EBS volumes to be backed up: echo -e "Now outputting ebs_backup_list:\n$ebs_backup_list"
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}
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create_EBS_Snapshot_Tags()
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{
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echo "create_EBS_Snapshot_Tags region_copy_scheduled_destinations=$region_copy_scheduled_destinations"
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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}_$current_date to the variable $snapshot_tags
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@ -68,6 +79,15 @@ create_EBS_Snapshot_Tags()
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snapshot_tags="$snapshot_tags --tag Volume=${ebs_selected} --tag Created=$current_date"
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fi
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#if $name_tag_create is true then append RegionCopy=[region]:scheduled,[region]:scheduled to the variable $snapshot_tags
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if [[ -n $region_copy_scheduled_destinations ]]
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then
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ec2_snapshot_resource_id=`echo "$ec2_create_snapshot_result" | cut -f 2`
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regions=$(echo $region_copy_scheduled_destinations | sed 's/ */:scheduled,/g')
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snapshot_tags="$snapshot_tags --tag RegionCopy=${regions}:scheduled"
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echo "tagging $ec2_snapshot_resource_id with $snapshot_tags"
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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 [[ -n $snapshot_tags ]]
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then echo "Tagging Snapshot $ec2_snapshot_resource_id with the following Tags:"
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@ -113,7 +133,7 @@ purge_EBS_Snapshots()
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snapshot_tag_list=`ec2-describe-tags --show-empty-fields --region $region --filter resource-type=snapshot --filter key=PurgeAllow,PurgeAfterFE`
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#snapshot_purge_allowed is a list of all snapshot_ids with PurgeAllow=true
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snapshot_purge_allowed=`echo "$snapshot_tag_list" | grep .*PurgeAllow'\s'true | cut -f 3`
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for snapshot_id_evaluated in $snapshot_purge_allowed
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do
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#gets the "PurgeAfterFE" date which is in UTC with UNIX Time format (or xxxxxxxxxx / %s)
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@ -133,6 +153,50 @@ purge_EBS_Snapshots()
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done
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}
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region_copy_EBS_Snapshots()
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{
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#snapshots_to_region_copy is a list of all snapshot_ids with RegionCopy=.*:scheduled.*
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# --output-delimiter and $'n' substitution used so $IFS doesn't have to be
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# manipulated with for loops and the cut command
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snapshot_tag_list=$(ec2-describe-tags --show-empty-fields --region $region --filter resource-type=snapshot --filter key=RegionCopy | grep ':scheduled' | cut -f3,5- --output-delimiter='~')
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for snapshot_data in $(echo ${snapshot_tag_list//$'\n'/ } | cut -f1-)
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do
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snapshot_id=$(echo $snapshot_data | cut -d'~' -f1)
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regions=$(echo $snapshot_data | cut -d'~' -f2-)
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original_regions=$regions
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region_copy_tag=''
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for region_data in ${regions//,/ }
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do
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destination_region=$(echo $region_data | cut -d: -f1)
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status=$(echo $region_data | cut -d: -f2-)
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region_copy_tag_append="$destination_region:$status"
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if [[ "$region_copy_destinations" = "all" || -n $(echo "$region_copy_destinations"| grep $destination_region) ]]
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then
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current_datetime=$(date +%Y-%m-%d_%H:%M:%S)
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if [ "$status" = "scheduled" ]
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then
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ec2_copy_snapshot_complete=$(ec2-copy-snapshot -r $region -s $snapshot_id --region $destination_region)
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ec2_copy_snapshot_result=`echo $?`
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if [[ $ec2_copy_snapshot_result -gt 0 ]]
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then
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echo -e "An error occured when running ec2-copy-snapshot. The error returned is below:\n$ec2_copy_snapshot_complete" 1>&2 ; exit 70
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else
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region_copy_tag_append="$destination_region:$current_datetime"
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echo "The snapshot \"$snapshot_id\" is being copied to $destination_region."
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fi
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fi
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fi
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region_copy_tag="${region_copy_tag},$region_copy_tag_append"
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done
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if [[ "${region_copy_tag#,}" != "$original_regions" ]]
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then
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ec2-create-tags $snapshot_id --region $region --tag RegionCopy=${region_copy_tag#,}
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fi
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done
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}
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app_name=`basename $0`
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#sets defaults
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@ -148,7 +212,7 @@ 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 "PurgeAfterFE" tag that is earlier than current date
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purge_snapshots=false
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#handles options processing
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while getopts :s:c:r:v:t:k:pnu opt
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while getopts :s:c:r:v:t:k:g:d:l:pnu opt
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do
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case $opt in
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s) selection_method="$OPTARG";;
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@ -157,6 +221,8 @@ while getopts :s:c:r:v:t:k:pnu opt
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v) volumeid="$OPTARG";;
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t) tag="$OPTARG";;
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k) purge_after_input="$OPTARG";;
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g) region_copy_scheduled_destinations="$OPTARG";;
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d) region_copy_destinations="$OPTARG";;
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n) name_tag_create=true;;
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p) purge_snapshots=true;;
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u) user_tags=true;;
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@ -166,7 +232,7 @@ while getopts :s:c:r:v:t:k:pnu 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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@ -177,7 +243,7 @@ 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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@ -213,7 +279,7 @@ do
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then echo -e "An error occured when running ec2-create-snapshot. The error returned is below:\n$ec2_create_snapshot_result" 1>&2 ; exit 70
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else
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ec2_snapshot_resource_id=`echo "$ec2_create_snapshot_result" | cut -f 2`
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fi
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fi
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create_EBS_Snapshot_Tags
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done
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@ -221,4 +287,11 @@ done
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if $purge_snapshots
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then echo "Snapshot Purging is Starting Now."
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purge_EBS_Snapshots
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fi
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fi
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#if region_copy_destinations is true, then run region_copy_EBS_Snapshots function
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if [[ -n $region_copy_destinations ]]
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then echo "Snapshot Copying to regions $region_copy_destinations is Starting Now."
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region_copy_EBS_Snapshots
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fi
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