Model Plugins for onos-config YANG Files compiled with YGOT loadable as Shared Object Libraries

The plugins are built from the Makefile of onos-config.

The build cannot be done from this folder, because Go plugins cannot be loaded in to a Main module if they are built under a different GOPATH than the main module

the error plugin was built with a different version of package internal/cpu (or similar) can be expected, if this is not the case.

See golang/go#26759

The plugins are loaded in Kubernetes by declaring them as additional containers in the onos-config Pod - this is specified in the Helm Chart for onos-config or in onit.

As the plugin containers startup in Kubernetes the default command is copylibandstay. This is a tiny program that copies the library in to a shared folder where onos-config can refer to it as a file e.g. /usr/local/lib/shared/devicesim.so.1.0.0