Optimal pod management to meet defined target objectives

A computer system for optimal pod management, the computer system comprising:

• a communication fabric;
• a storage device connected to the communication fabric, wherein the storage device stores program instructions;
• and
• a processor connected to the communication fabric, wherein the processor executes the program instructions to:
• generate a group of pod performance curves corresponding to a pod of a host node on a pod optimization graph based on analysis of pod performance metrics that correspond to the pod, wherein the pod optimization graph shows a relationship between time and pod activation;
• select certain pod performance curves of the group of pod performance curves to form a set of pod performance curves based on predicted service request load and defined target objectives corresponding to the pod;
• generate a plurality of performance curves corresponding to the pod based on the set of pod performance curves;
• determine an optimal state of the pod that meets the defined target objectives corresponding to the pod based on a path of maximum energy with minimum noise closest to all of the plurality of performance curves for the pod;
• direct a pod-warm component located on the host node to trigger generation of a pod snapshot image of the pod in the optimal state running on the host node for instantiation of the pod on the host node in response to determining that the pod attained the optimal state;
• receive an input to instantiate a second instance of the pod on the host node in response to detecting that one or more of a plurality of pod performance metrics have exceeded a corresponding maximum pod performance metric threshold level;
• and
• direct the pod-warm component located on the host node to instantiate the second instance of the pod fully warm in the optimal state on the host node using the pod snapshot image of the pod to decrease startup time of the pod and increase performance of the host node.

A computer program product for optimal pod management, the computer program product comprising a computer-readable storage medium having program instructions embodied therewith, the program instructions executable by a computer to cause the computer to:

• generate a group of pod performance curves corresponding to a pod of a host node on a pod optimization graph based on analysis of pod performance metrics that correspond to the pod, wherein the pod optimization graph shows a relationship between time and pod activation;
• select certain pod performance curves of the group of pod performance curves to form a set of pod performance curves based on predicted service request load and defined target objectives corresponding to the pod;
• generate a plurality of performance curves corresponding to the pod based on the set of pod performance curves;
• determine an optimal state of the pod that meets the defined target objectives corresponding to the pod based on a path of maximum energy with minimum noise closest to all of the plurality of performance curves for the pod;
• direct a pod-warm component located on the host node to trigger generation of a pod snapshot image of the pod in the optimal state running on the host node for instantiation of the pod on the host node in response to determining that the pod attained the optimal state;
• receive an input to instantiate a second instance of the pod on the host node in response to detecting that one or more of a plurality of pod performance metrics have exceeded a corresponding maximum pod performance metric threshold level;
• and
• direct the pod-warm component located on the host node to instantiate the second instance of the pod fully warm in the optimal state on the host node using the pod snapshot image of the pod to decrease startup time of the pod and increase performance of the host node.