CloudWatch Logs in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a CloudWatch Logs log group using AWS CLI.

AWS

aws logs create-log-group --log-group-name [1]

Drag options to blanks, or click blank then click option'

AMyAppLogGroup

BMyAppStream

CMyAppAlarm

DMyAppMetricFilter

Attempts:

3 left

💡 Hint

Common Mistakes

Using a log stream name instead of a log group name.

Confusing metric filters or alarms with log groups.

The create-log-group command requires the log group name. Here, MyAppLogGroup is the correct name for the log group.

2fill in blank

medium

Complete the code to put a log event into a CloudWatch Logs log stream using AWS CLI.

AWS

aws logs put-log-events --log-group-name MyAppLogGroup --log-stream-name MyAppStream --log-events '[{"timestamp":[1],"message":"User login successful"}]'

Drag options to blanks, or click blank then click option'

A01/01/2023

B2023-01-01T12:00:00Z

C1672531200000

D12:00:00

Attempts:

3 left

💡 Hint

Common Mistakes

Using ISO date strings instead of milliseconds.

Using human-readable date formats.

The timestamp value must be in milliseconds since Unix epoch. The value 1672531200000 represents a valid timestamp.

3fill in blank

hard

Fix the error in the AWS CLI command to describe log streams for a log group.

AWS

aws logs describe-log-streams --log-group-name [1]

Drag options to blanks, or click blank then click option'

AMyAppStream

BMyAppAlarm

CMyAppMetricFilter

DMyAppLogGroup

Attempts:

3 left

💡 Hint

Common Mistakes

Using a log stream name instead of a log group name.

Confusing metric filters or alarms with log groups.

The describe-log-streams command requires the log group name, not the log stream name.

4fill in blank

hard

Fill both blanks to create a metric filter for error logs in a log group.

AWS

aws logs put-metric-filter --log-group-name [1] --filter-name ErrorFilter --metric-transformations '[{"metricName":"ErrorCount","metricNamespace":"MyApp","metricValue":[2]]' --filter-pattern "ERROR"

Drag options to blanks, or click blank then click option'

AMyAppLogGroup

B1

C0

DErrorStream

Attempts:

3 left

💡 Hint

Common Mistakes

Using a log stream name instead of a log group name.

Setting metric value to zero which would not count events.

The metric filter must be created on the log group MyAppLogGroup and the metric value for each matching event is 1.

5fill in blank

hard

Fill all three blanks to create an alarm based on the metric filter for error count.

AWS

aws cloudwatch put-metric-alarm --alarm-name [1] --metric-name [2] --namespace MyApp --statistic Sum --period 60 --threshold 5 --comparison-operator [3] --evaluation-periods 1 --alarm-actions arn:aws:sns:us-east-1:123456789012:NotifyMe

Drag options to blanks, or click blank then click option'

AErrorAlarm

BErrorCount

CGreaterThanOrEqualToThreshold

DLessThanThreshold

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong metric name.

Using a comparison operator that triggers on low values.

The alarm is named ErrorAlarm, monitors the metric ErrorCount, and triggers when the sum is greater than or equal to the threshold.