SPIRE sertificate to distinguish the clients at nsmd.

As we discussed with @lobkovilya for identity client we need to use changes from #1733

In order to provide all clients with (shared) server socket it is necessary to

1. add a folder with server socket that will be common for all clients
2. mount the new folder into client pods (in addition to currently mounted individual workspace folder)

Since it is a somewhat architecture related feature, @edwarnicke could you please review/approve this modification?

The implemented solution in PR #1968 is that we create server socket for every client in its individual workspace but serve them all with one instance of NetworkServiceDiscovery, MonitorServer, NetworkServiceRegistry and NetworkServiceServer services.

Another possible solution: we could avoid mounting networkservicemesh.io.sock using nsmdp. NSMgr claims where socket located in the host path. NSC/NSE mount that server socket wherever they want in container path. Mounting volumes to NSC/NSE using nsmdp looks excessive for networkservicemesh.io.sock.

Workspace will be mounted only to NSE and to NSC with memif support.

This issue has been automatically marked as stale because it has not had activity in 30 days. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.

This issue has been automatically marked as stale because it has not had activity in 30 days. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.