AWS – Script to get metrics from CloudWatch

Python3 sample script to get metrics from AWS CloudWatch. In the example, we get the maximum value in the last minute and display only the value, this is necessary if you want to collect metrics for example in Zabbix.

Script:

#!/usr/bin/env python3

import boto3
import datetime

awsRegion = "eu-west-1" 
namespace = "AWS/ElastiCache"
metric = "CurrConnections"
statistics = "Maximum"
period = 60 # Seconds
timeRange = 1 # Minutes 

client = boto3.client('cloudwatch', region_name=awsRegion)

startTime = (datetime.datetime.utcnow() - datetime.timedelta(minutes=timeRange))
startTime = startTime.strftime("%Y-%m-%dT%H:%M:%S")
endTime = datetime.datetime.utcnow()
endTime = endTime.strftime("%Y-%m-%dT%H:%M:%S")

response = client.get_metric_statistics(
    Namespace=namespace,
    MetricName=metric,
    StartTime=startTime,
    EndTime=endTime,
    Period=period,
    Statistics=[
        statistics,
    ]
)

for cw_metric in response['Datapoints']:
    print(cw_metric['Maximum'])

Tagged: Tags AWS boto3 CloudWatch Python Python3