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rafaelfelini/get-instance-tag-name.sh

Created September 22, 2014 17:18
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Get aws ec2 instance name via tag.
Raw
get-instance-tag-name.sh
export AWS_ACCESS_KEY_ID=
export AWS_SECRET_ACCESS_KEY=
TAG_NAME="Name"
INSTANCE_ID="`wget -qO- http://instance-data/latest/meta-data/instance-id`"
REGION="`wget -qO- http://instance-data/latest/meta-data/placement/availability-zone | sed -e 's:\([0-9][0-9]*\)[a-z]*\$:\\1:'`"
TAG_VALUE="`aws ec2 describe-tags --filters "Name=resource-id,Values=$INSTANCE_ID" "Name=key,Values=$TAG_NAME" --region $REGION --output=text | cut -f3`"
echo "hostname=$TAG_VALUE"
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