Method for managing updates to a distributed network independent of hardware

A system for enabling communication for a service in a distributed software-defined network, comprising:

• a centralized application manager comprising a processor and a memory storing instructions that, when executed by the processor, cause the centralized application manager to operate as an fxManager to:
• register metadata, including security policy constraints, for a plurality of application instances executing in distinct execution environments, wherein each application instance implements a common service identifier for the service;
• and
• maintain a mapping between the common service identifier and a dynamically updated set of network addresses corresponding to the application instances, the mapping being synchronized through a shared service registry across multiple network zones;
• a name resolution component comprising a processor and a memory storing instructions that, when executed by the processor, cause the name resolution component to expose an application-layer interface using an internal messaging protocol, to receive a request from a first application component to communicate with a target identified by the common service identifier, to resolve the common service identifier to at least one of the network addresses based on the security policy constraints, and to select one of the network addresses responsive to a selection policy as a selected network address;
• and
• a virtual messaging fabric implemented as an overlay messaging bus decoupled from DNS and configured to establish communication between the first application component and the selected network address while enforcing the security policy constraints.

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors of a system for enabling communication for a service in a distributed software-defined network, cause the system to perform a method comprising:

• registering, by a centralized application manager comprising an fxManager, metadata for a plurality of application instances executing in distinct execution environments, wherein each application instance implements a common service identifier for the service and has associated security policy constraints;
• maintaining, by the centralized application manager, a mapping between the common service identifier and a dynamically updated set of network addresses corresponding to the application instances;
• receiving, from a first application component, a request to communicate with a target identified by the common service identifier;
• resolving, by a name resolution component having an application-layer interface, the common service identifier to at least one of the network addresses associated with the service based on an internal messaging protocol and the security policy constraints;
• selecting, by the name resolution component, one of the network addresses responsive to a selection policy as a selected network address;
• and
• establishing communication between the first application component and the selected network address over a virtual messaging fabric implemented as an overlay messaging bus decoupled from DNS and configured to transport messages using the internal messaging protocol while enforcing the security policy constraints;
• wherein the instructions further cause the system to update the mapping in response to deployment or termination of an application instance and to synchronize the mapping through a shared service registry across multiple network zones.