To enable alert notifications for Elastic Beanstalk events in AWS using AWS CLI, follow the below steps:

1. Open the AWS CLI on your local machine or terminal.

2. Run the following command to enable alert notifications for Elastic Beanstalk events:

aws elasticbeanstalk update-environment --environment-name <environment-name> --option-settings Namespace=aws:elasticbeanstalk:sns:topics,OptionName=Notification Endpoint,Value=<email-address>

Note: Replace <environment-name> with the name of the Elastic Beanstalk environment for which you want to enable alert notifications and <email-address> with the email address where you want to receive the notifications.

3. After running the above command, you should receive a confirmation message that the environment has been updated.

4. Now, whenever an Elastic Beanstalk event occurs in the specified environment, you will receive an email notification at the specified email address.

That’s it! You have successfully enabled alert notifications for Elastic Beanstalk events in AWS using AWS CLI.

To enable alert notifications for Elastic Beanstalk events in AWS using Python, follow these steps:

1. Import the necessary modules:

import boto3

2. Create an SNS topic:

sns = boto3.client('sns')
response = sns.create_topic(Name='elastic-beanstalk-notifications')
topic_arn = response['TopicArn']

3. Create a subscription to the SNS topic:

response = sns.subscribe(
    TopicArn=topic_arn,
    Protocol='email',
    Endpoint='[email protected]'
)
subscription_arn = response['SubscriptionArn']

4. Create a new CloudWatch alarm:

cloudwatch = boto3.client('cloudwatch')
response = cloudwatch.put_metric_alarm(
    AlarmName='elastic-beanstalk-notifications',
    AlarmDescription='Alarm for Elastic Beanstalk events',
    ActionsEnabled=True,
    AlarmActions=[topic_arn],
    MetricName='EnvironmentHealth',
    Namespace='AWS/ElasticBeanstalk',
    Statistic='Average',
    Dimensions=[
        {
            'Name': 'EnvironmentName',
            'Value': 'your-environment-name'
        }
    ],
    Period=60,
    EvaluationPeriods=1,
    Threshold=1,
    ComparisonOperator='GreaterThanOrEqualToThreshold'
)

5. Verify that the CloudWatch alarm was created:

response = cloudwatch.describe_alarms(
    AlarmNames=['elastic-beanstalk-notifications']
)
print(response)

These steps will create an SNS topic, subscribe an email address to it, and create a CloudWatch alarm that sends notifications to the SNS topic when an Elastic Beanstalk event occurs.