P2p read only - 2.0

[heifner]

Change Description

• Resolves [Feature request]Need a new mode for private peering network - 2.0.1 release read-only node not listen on p2p port(9876) #8580
• Allow incoming connections when --read-mode is read-only and irreversible. Incoming connections were originally intended to be prevented to avoid accidental connections from external clients who would have no indication that their transactions were not being evaluated or forwarded on the p2p network. However, this restriction was not actually enforced in v1.8.x. [Feature request]Need a new mode for private peering network - 2.0.1 release read-only node not listen on p2p port(9876) #8580 indicates there are valid use cases for allowing incoming connections. Specifically if you are wanting to setup a relay node between two block producers where transactions do not need to flow as they come in through other relay nodes that are not in read-only mode.
• Added clear warning log message to address promote read-only disablement log from net_plugin to warn level #7886

Consensus Changes

• Consensus Changes

API Changes

• API Changes

Documentation Additions

• Documentation Additions