Systems and methods for autoscaling instance groups of computing platforms

A computer-implemented system for scaling down an instance group of a computing platform, the system comprising:

• one or more processors;
• and
• a memory storing instructions, the instructions, when executed by the one or more processors, causing the system to perform:
• determining whether a utilization percentage of resources allocated to an instance associated with the instance group is smaller than a predetermined scale-down threshold, the resources allocated to the instance including one or more running pods, the instance group including a predetermined desired number of instances;
• and
• in response to determining that the utilization percentage of the instance is smaller than the predetermined scale-down threshold:
• waiting for each running pod of the one or more running pods associated with the instance to run to completion;
• preventing an additional pod being scheduled on the instance;
• in response to each running pod of the one or more running pods associated with the instance running to completion, detaching the instance from the instance group;
• and
• in response to detaching the instance from the instance group, decreasing by one the predetermined desired instance number associated with the instance group.