EC2のNameタグ名でインスタンスの起動、停止を行う。aws-cliとjqを使用。

instance-controller.sh

#!/bin/bash
# example: sh instance-controler.sh [action] [name]
# action -> [start,stop]
# name -> ec2 tag name
if [ $# -ne 2 ]; then
        echo "Error: Invalid argument count." 1>&2
        exit 1
fi
action=$1
name=$2
id=`aws ec2 describe-instances \
      --filters "Name=tag-key,Values=Name" \
      --filters "Name=tag-value,Values=${name}" | jq -r '.Reservations[].Instances[].InstanceId'`

if [ ${id} ]; then
        if [ ${action} = "start" ]; then
                aws ec2 start-instances --instance-ids ${id}
        elif [ ${action} = "stop" ]; then
                aws ec2 stop-instances --instance-ids ${id}
        else
                echo "Error: Invalid action." 1>&2
                exit 1
        fi
else
        echo "Error: ${name} instance not found." 1>&2
        exit 1
fi