1. Open the Google Cloud Console and navigate to the Cloud CDN page.
2. In the left-hand navigation menu, select “Backend Services”.
3. Select the Backend Service that you want to configure session affinity for.
4. Click on the “Edit” button at the top of the page to edit the Backend Service.
5. Scroll down to the “Session Affinity” section and select “Client IP” from the dropdown menu.
6. Click on the “Save” button at the bottom of the page to save the changes.
7. Verify the configuration by checking the “Session Affinity” column in the list of Backend Services. It should now show “Client IP”.

​

1. Open the Cloud Shell in your GCP console.
2. Run the following command to list all the backend services:
   Copy

   Ask AI

   gcloud compute backend-services list
   

3. Choose the backend service that you want to enable session affinity for and note down its name.
4. Run the following command to enable session affinity for the chosen backend service:
   Copy

   Ask AI

   gcloud compute backend-services update [BACKEND_SERVICE_NAME] --session-affinity CLIENT_IP
   

   Note: Replace [BACKEND_SERVICE_NAME] with the name of your backend service.
5. Verify that session affinity is enabled for the backend service by running the following command:
   Copy

   Ask AI

   gcloud compute backend-services describe [BACKEND_SERVICE_NAME] | grep sessionAffinity
   

   The output should show “sessionAffinity: CLIENT_IP”. With these steps, you have successfully remediated the misconfiguration “Cloud CDN Regional Backend Services Should Have Session Affinity” in GCP using GCP CLI.

1. Open the Cloud Console and go to the Cloud CDN page.
2. Select the CDN resource that you want to remediate.
3. In the left navigation menu, select the Backend services option.
4. Select the backend service that you want to remediate.
5. In the left navigation menu, select the Session affinity option.
6. Select the option Enable session affinity.
7. Click Save to apply the changes.

from google.cloud import compute_v1

# Replace [PROJECT_ID], [REGION], and [BACKEND_SERVICE_NAME] with the appropriate values
project_id = '[PROJECT_ID]'
region = '[REGION]'
backend_service_name = '[BACKEND_SERVICE_NAME]'

# Create the client object
client = compute_v1.BackendServicesClient()

# Get the backend service object
backend_service = client.get(project=project_id, region=region, backend_service=backend_service_name)

# Enable session affinity
backend_service.session_affinity = compute_v1.BackendServiceSessionAffinity.CLIENT_IP

# Update the backend service
update_mask = compute_v1.field_mask.FieldMask(paths=['session_affinity'])
response = client.update(project=project_id, region=region, backend_service=backend_service_name, backend_service_resource=backend_service, update_mask=update_mask)