Scalable microservices-driven industrial IoT controller architecture

A microcontroller system, comprising:

• a first microcontroller domain;
• a second microcontroller domain to which one or more legacy applications are provisioned;
• and
• wherein the first microcontroller domain is operatively connected to a host processor system over a communications protocol, and wherein one or more microservices are provisioned to at least one of the first microcontroller domain and the host processor system;
• wherein the second microcontroller domain is operatively connected to one or more input/output (I/O) devices adapted to execute the one or more legacy applications generating data in conjunction with the one or more microservices executed by the at least one of the first microcontroller domain and the host processor system, the one or more microservices performing microservices-specific computing on the generated data;
• and
• wherein the first and second microcontroller domains communicate during deployment of the one or more legacy applications and the one or more microservices while maintaining operational separation between the first and second microcontroller domains, the second microcontroller domain effectuating deployment of the one or more legacy applications in one of a bare metal or real-time operating system mode, and the first microcontroller domain concurrently effectuating deployment of the one or more microservices using a standard operating system, wherein the first and second microcontroller domains communicate by passing messages comprising the data generated by the second microcontroller domain to the first microcontroller domain through memory shared between the first and second microcontroller domains.