To handle significant traffic spikes and potentially malicious IPs, you can use Google Cloud Armor to configure rate-based bans. This approach allows you to automatically ban clients that exceed a predefined request rate, protecting your application from potential denial-of-service attacks.
* Access Google Cloud Console: Log in to your Google Cloud Console.
* Navigate to Google Cloud Armor: Go to the "Security" section and select "Google Cloud Armor".
* Create Security Policy: Create a new security policy or edit an existing one. Add a new rule to the policy.
* Configure Rate-Based Ban: Set the action to rate_based_ban. Define the rate limit (e.g., requests per second) and set the ban_duration_sec parameter to the desired time interval.
* Apply the Policy: Apply the security policy to your backend service or load balancer.
* Monitor and Adjust: Monitor the traffic patterns and adjust the rate limits and ban durations as necessary to balance security and availability.
References:
* Google Cloud Armor Documentation
* Rate Limiting with Cloud Armor