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Added duplicate tag(s) to snapshot tag(s). #138

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Added duplicate tag(s) to snapshot tag(s). #138

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d9f8588
Added duplication of specified volume tag(s) to snapshot tag(s).
RLGyde Dec 18, 2013
fd04c5e
fixed lacking parameter for -d
RLGyde Dec 18, 2013
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2 changes: 2 additions & 0 deletions ec2-automate-backup/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,8 @@ ec2-automate-backup requires one of the following two parameters be provided:

`-n` - tag snapshots "Name" tag as well as description

`-d <key>` - duplicate specified volume tag(s) to snapshot tag(s). For example, 'ec2-automate-backup.sh -v vol-6d6a0527 -d "Name¤Type"' would duplicate tag key Name and Type with there values from volume to snapshot. As you can see in the example the delimiter between keys is "¤". This function will not, at the moment, work if key or value contains a space.

`-h` - tag snapshots "InitiatingHost" tag to specify which host ran the script

`-k <purge_after_days>` - the period after which a snapshot can be purged. For example, running "ec2-automate-backup.sh -v "vol-6d6a0527 vol-636a0112" -k 31" would allow snapshots to be removed after 31 days. purge_after_days creates two tags for each volume that was backed up - a PurgeAllow tag which is set to PurgeAllow=true and a PurgeAfter tag which is set to the present day (in UTC) + the value provided by -k.
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18 changes: 16 additions & 2 deletions ec2-automate-backup/ec2-automate-backup.sh
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Expand Up @@ -43,6 +43,7 @@ get_EBS_List()
then echo -e "An error occured when running ec2-describe-volumes. The error returned is below:\n$ebs_backup_list_complete" 1>&2 ; exit 70
fi
ebs_backup_list=`echo "$ebs_backup_list_complete" | grep ^VOLUME | cut -f 2`
ebs_backup_list_tags_complete=`echo "$ebs_backup_list_complete" | grep ^TAG`
#code to right will output list of EBS volumes to be backed up: echo -e "Now outputting ebs_backup_list:\n$ebs_backup_list"
}

Expand Down Expand Up @@ -73,11 +74,23 @@ create_EBS_Snapshot_Tags()
snapshot_tags="$snapshot_tags --tag Volume=${ebs_selected} --tag Created=$date_current"
fi

#if $tag_duplication is set, then duplicate specified volume tags to snapshot tags
if [[ -n $tag_duplication ]]
then
ebs_selected_tags=`echo "$ebs_backup_list_tags_complete" | grep $ebs_selected`
IFS='¤' read -ra tags_for_duplication <<< "$tag_duplication"
for tag_key in "${tags_for_duplication[@]}"; do
tag_value=`echo "$ebs_selected_tags" | grep "$tag_key" | cut -f 5`
snapshot_tags="$snapshot_tags --tag '$tag_key=$tag_value'" #FIXME script can't handle spances in key or value
done
fi

#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:"
ec2-create-tags $ec2_snapshot_resource_id --region $region $snapshot_tags
fi

}

date_binary_get()
Expand Down Expand Up @@ -168,7 +181,7 @@ user_tags=false
#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
purge_snapshots=false
#handles options processing
while getopts :s:c:r:v:t:k:pnhu opt
while getopts :s:c:r:v:t:k:d:pnhu opt
do
case $opt in
s) selection_method="$OPTARG";;
Expand All @@ -177,6 +190,7 @@ while getopts :s:c:r:v:t:k:pnhu opt
v) volumeid="$OPTARG";;
t) tag="$OPTARG";;
k) purge_after_days="$OPTARG";;
d) tag_duplication="$OPTARG";;
n) name_tag_create=true;;
h) hostname_tag_create=true;;
p) purge_snapshots=true;;
Expand Down Expand Up @@ -241,4 +255,4 @@ done
if $purge_snapshots
then echo "Snapshot Purging is Starting Now."
purge_EBS_Snapshots
fi
fi