12. Solution: Alerting Exercise

ND0063 C1 L4 12 Alerting To Problems Exercise Solution Video

Alerting

Create Lambda function

  1. Go to Lambda -> Create function.
  2. Select Author from scratch, name your lambda function "udacity" and leave the remaining options at their default.
  3. Click Create function.

This will create a Lambda function with the following basic code:

exports.handler = async (event) => {
    // TODO implement
    const response = {
        statusCode: 200,
        body: JSON.stringify('Hello from Lambda!'),
    };
    return response;
};

Create Alarm

  1. Go to CloudWatch -> Alarms -> Create Alarm.
  2. Click Select metric -> Lambda -> By function name.

  1. Select "udacity" Invocations.

  1. Click "Select metric."
  2. Change Period to One minute.

  1. Set Condition to Greater than 0, and click Next.

  1. Under "Select an SNS topic," choose "Create new topic" and add your email address and click Create topic, then click Next.

  1. Name and describe the Alarm, then finish creating the alarm.
  2. Check your email. You will need to confirm your subscription to the SNS topic.

Testing

Now go back to your Lambda function and click the "Test" button a few times. Give CloudWatch a few minutes and then check your email for the alarm notification.

Email alert:

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