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CloudWatch Logs: Create log groups and query logs

Source

https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/WhatIsCloudWatchLogs.html

Use case

ID: cloudwatch-logs/getting-started
Level: beginner
Core actions: logs:CreateLogGroup, logs:PutLogEvents, logs:FilterLogEvents, logs:StartQuery

Steps

Create a log group
Set retention to 7 days
Create a log stream
Put 5 log events (INFO/WARN/ERROR)
Get log events
Filter for ERROR and WARN
Run a Logs Insights query

Resources created

Resource	Type
`/tutorials/cloudwatch-logs-gs`	Log group

Cost

Negligible for 5 log events. All resources removed during cleanup.

Duration

~14 seconds

Related docs

Appendix

Field	Value
Date	2026-04-14
Script lines	91
Exit code	0
Runtime	14s
Steps	7
Issues	None
Version	v1