EC2自身のCPU Credit Balanceを取得

aws cloudwatch get-metric-statistics \
--namespace AWS/EC2 \
--dimensions Name=InstanceId,Value=`curl -s http://169.254.169.254/latest/meta-data/instance-id` \
--metric-name CPUCreditBalance \
--statistics Average \
--start-time `date -u -d '-5minutes' +%Y-%m-%dT%TZ` \
--end-time `date -u +%Y-%m-%dT%TZ` \
--period 300

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