Serverless runtime container allocation

A computer program product, comprising a computer readable hardware storage device storing a computer readable program code, said computer readable program code comprising an algorithm that when executed by a processor of a centralized maintenance device implements a serverless runtime container allocation method, said method comprising:

• defining, by said processor, a number of runtime containers and associated characteristics required for each worker node of a plurality of worker nodes for execution of a specified workload;
• dispatching, by said processor via a plurality of coordinated controllers, said specified workload to said plurality of worker nodes;
• assigning, by said processor via said plurality of coordinated controllers, a specified portion of said specified workload to each said worker node;
• generating, by said processor based on results of said assigning, an application executing a universal runtime container comprising a plurality of potential application runtimes and associated supported software versions within a layered modifiable format comprising a plurality of layers;
• removing, by said processor executing a refill agent component, unused layers of said plurality of layers of said universal runtime container;
• executing, by said processor in response to said generating said universal runtime container, said specified workload via said universal runtime container;
• and
• refilling, by said processor via said plurality of coordinated controllers in response to said executing, a set of available universal runtime containers on an associated worker node of said plurality of work nodes.

A centralized maintenance device comprising a processor coupled to a computer-readable memory unit, said memory unit comprising instructions that when executed by the processor implements a serverless runtime container allocation method comprising:

• defining, by said processor, a number of runtime containers and associated characteristics required for each worker node of a plurality of worker nodes for execution of a specified workload;
• dispatching, by said processor via a plurality of coordinated controllers, said specified workload to said plurality of worker nodes;
• assigning, by said processor via said plurality of coordinated controllers, a specified portion of said specified workload to each said worker node;
• generating, by said processor based on results of said assigning, an application executing a universal runtime container comprising a plurality of potential application runtimes and associated supported software versions within a layered modifiable format comprising a plurality of layers;
• removing, by said processor executing a refill agent component, unused layers of said plurality of layers of said universal runtime container;
• executing, by said processor in response to said generating said universal runtime container, said specified workload via said universal runtime container;
• and
• refilling, by said processor via said plurality of coordinated controllers in response to said executing, a set of available universal runtime containers on an associated worker node of said plurality of work nodes.