[NIFI-9428] Implement C2 Protocol, Client, and Server

• Type: Epic
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Component/s: C2, MiNiFi
• Epic Name: Implement C2 Protocol, Client, and Server
• Epic Status: To Do
• Assignee: Unassigned
• Reporter: Matt Burgess
• Created: 01/Dec/21 17:55
• Updated: 22/Jan/24 22:23

Description

This Epic covers the work needed for the future Command
and Control (C2) capabilities in terms of the NiFi/MiNiFi Java
codebase. The current implementation is not a pure reference
implementation of the C2 spec. It has fairly limited capability
and uses the PullHttpChangeIngestor for the agent to ask for flow
updates, which makes any bidirectional communication difficult. Rather
than try to build out from what we currently have, we propose a new
implementation (deprecating and eventually removing the old one) that
is more generic, extensible, etc.

Issue Links

• depends upon: NIFI-9452 Produce a c2 component manifest for NiFi at build time
• relates to: NIFI-12657 Remove MiNiFi C2 Server Modules
• links to: GitHub Pull Request #5648