disk_used_percent does not work with device name xvda1 in Amazon Linux AMI

aws-samples / amazon-cloudwatch-auto-alarms

Automatically create and configure Amazon CloudWatch alarms for EC2 instances, RDS, and AWS Lambda using tags for standard and custom CloudWatch Metrics.

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disk_used_percent does not work with device name xvda1 in Amazon Linux AMI #43

Open vumdao opened 1 year ago

vumdao commented 1 year ago

From the CwAgent namespace, the collected metrics do not contain information xvda1 device name but the mapping

[root@ip-10-0-196-70 bin]# ls -la /dev/xvda1
lrwxrwxrwx 1 root root 9 Apr 21 15:25 /dev/xvda1 -> nvme0n1p1

[root@ip-10-0-196-70 bin]# cat /etc/os-release
NAME="Amazon Linux"
VERSION="2"
ID="amzn"
ID_LIKE="centos rhel fedora"
VERSION_ID="2"
PRETTY_NAME="Amazon Linux 2"
ANSI_COLOR="0;33"
CPE_NAME="cpe:2.3:o:amazon:amazon_linux:2"
HOME_URL="https://amazonlinux.com/"

knizami commented 1 year ago

Hello, thanks for reporting this, it appears the default device name has changed. I have updated the default_alarms dictionary to reflect the new default device nvme0n1p1:

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