How to get metrics data from aws cloudwatch to csv - amazon-web-services

Question

i have been working on project, and i want to export metrics data from cloudwatch like CPU Utilization and Network Out data, is there any way to get that data? and convert it to csv?

Answer 1

Export CloudWatch Metrics
You can't do it directly but following is the step by step instructions:
Pre Reqs
AWS CLI (Command Line Interface) from here
jq is a lightweight and flexible command-line JSON processor from here
How to export
Use the following CLI:
aws cloudwatch get-metric-statistics
--namespace AWS/EC2 --metric-name CPUUtilization
--dimensions Name=InstanceId,Value=i-xxxxxxxxxxxxxxxxx
--statistics Average
--start-time 2020-03-01T00:00:00
--end-time 2020-03-31T23:59:00
--period 3600
--region us-east-1
Valid options for --metric-name depend on the --name-space parameter. For AWS/EC2, the full list can be seen by running the following CLI command:
aws cloudwatch list-metrics --namespace "AWS/EC2"
Valid options for --statistics are:
SampleCount
Average
Sum
Minimum
Maximum
--start-time and --end-time specify the range.
--period The granularity, in seconds, of the returned data points.
--region The region where the CloudWatch metric is being meatured (us-east-1, us-west-2 etc.)
Data output will look something like the following:
{
"Label": "CPUUtilization",
"Datapoints": []
}
To convert it to CSV we will use jq. For this you have two options:
Option 1
Pipe all the aws cli output to jq:
aws cloudwatch get-metric-statistics
--namespace AWS/EC2 --metric-name CPUUtilization
--dimensions Name=InstanceId,Value=i-xxxxxxxxxxxxxxxxx
--statistics Average
--start-time 2020-03-01T00:00:00
--end-time 2020-03-31T23:59:00
--period 3600
--region us-east-1
| jq -r '.Datapoints[] | [.Timestamp, .Minimum, .Unit] | #csv'
Option 2
Export the data to JSON:
aws cloudwatch get-metric-statistics
--namespace AWS/EC2 --metric-name CPUUtilization
--dimensions Name=InstanceId,Value=i-xxxxxxxxxxxxxxxxx
--statistics Average
--start-time 2020-03-01T00:00:00
--end-time 2020-03-31T23:59:00
--period 3600
--region us-east-1 >> data.json
Use jq to read the json to csv:
jq -r '.Datapoints[] | [.Timestamp, .Minimum, .Unit] | #csv' data.json
Output
Here is how the output will look like:
"2020-03-24T11:00:00Z",0.327868852454245,"Percent"
"2020-03-11T21:00:00Z",0.327868852454245,"Percent"
"2020-03-15T04:00:00Z",0.322580645156596,"Percent"
"2020-03-27T18:00:00Z",0.327868852478101,"Percent"

Answer 2

There is no in-built capability to export Amazon CloudWatch metrics to CSV.
There are API calls available to extract metrics, but you would need to write a program to call the API, receive the metrics and store it in a suitable format.
There are projects available that can assist with this, such as:
mogproject/cloudwatch-dump: Just dump all the CloudWatch metrics.
AWS – CloudWatch – DataExtractor – API | vMan
romgapuz/awsmetric2csv: AWS Metric to CSV is a Python command-line utility to extract CloudWatch metric data from an AWS resources (e.g. EC2, RDS) and save to a CSV file.
If you are looking for these types of tools, make sure they refer to CloudWatch metrics, not CloudWatch Logs (which is something different).

Answer 3

You can also try out official Prometheus cloudwatch_exporter