1. Log in to the AWS Management Console.
2. Go to the CloudFront service page.
3. Select the distribution for which you want to enable Origin Failover.
4. Click on the “Origins and Origin Groups” tab.
5. Select the origin for which you want to enable failover.
6. Click on the “Edit” button.
7. Scroll down to the “Origin Failover” section.
8. Click on the “Yes” radio button to enable Origin Failover.
9. Provide the alternate origin details in the “Alternate Domain Name” field.
10. Click on the “Create” button to create a new origin group.
11. Click on the “Save Changes” button to save the changes made.

​

1. Open your terminal and ensure that AWS CLI is installed and configured.
2. Run the following command to list all the CloudFront distributions in your AWS account:

aws cloudfront list-distributions

3. Identify the CloudFront distribution that needs to be remediated.
4. Run the following command to update the CloudFront distribution to enable origin failover:

aws cloudfront update-distribution --id <cloudfront-distribution-id> --origin-failover-status-enabled

5. Verify that origin failover has been enabled for the CloudFront distribution by running the following command:

aws cloudfront get-distribution --id <cloudfront-distribution-id> --query 'Distribution.Origins.Items[].OriginFailoverCriteria.StatusCodes.Quantity' --output text

6. Repeat the above steps for all the CloudFront distributions in your AWS account that need to be remediated.

1. Import the required AWS SDK libraries in your Python code. You will need boto3 and botocore libraries.

import boto3
from botocore.exceptions import ClientError

2. Create a boto3 client for CloudFront.

cloudfront_client = boto3.client('cloudfront')

3. Get the list of all the CloudFront distributions in your AWS account.

distributions = cloudfront_client.list_distributions()['DistributionList']['Items']

4. Loop through all the distributions and check if the “Origin Failover” is enabled or not. If it is not enabled, enable it.

for distribution in distributions:
    distribution_id = distribution['Id']
    distribution_config = cloudfront_client.get_distribution_config(Id=distribution_id)['DistributionConfig']
    if not distribution_config.get('Enabled', False):
        distribution_config['Enabled'] = True
        origin_failover_config = distribution_config.get('OriginFailoverSettings', {})
        origin_failover_config['Enabled'] = True
        distribution_config['OriginFailoverSettings'] = origin_failover_config
        try:
            cloudfront_client.update_distribution(DistributionConfig=distribution_config, Id=distribution_id, IfMatch=distribution_config['ETag'])
            print(f'Origin Failover enabled for CloudFront distribution {distribution_id}')
        except ClientError as e:
            print(f'Error enabling Origin Failover for CloudFront distribution {distribution_id}: {e}')

5. Run the Python script to enable the “Origin Failover” for all the CloudFront distributions in your AWS account.