l7mp / stunner / 36886606185

76%

Build Type

push

github

Committed by rg0now

Commit Message

feat(dataplane): Rebuild on listeners, servers, clusters

Massive refactor towards a more future-proof v2 structure:

- new runtime contract:a listeners emit net.Conns, a separate server (l4
  or turn) processes and routes these and sends to a cluster, a named
  set of peer endpoints.
- pion/turn/v5 replaced with the l7mp/turn fork, which serves accepted
  conns as message conns, closes a client conn when its allocation is
  deleted, and runs no TLS handshake
- new config file version v2: listeners are pure transport, servers are
  new, clusters gain new fields
- components wired by name (listener -> servers, server -> ordered
  clusters).
- listeners' servers are a chain, so stages that tag, wrap or filter a
  conn before the terminal server can come without a format change,
  address is only a bind address
- cluster: endpoints, a routing_policy (FILTER for filtering on
  endpoints, ROUND_ROBIN for load-balancing), plus the transport:
  protocol, tunnel (for reaching the peers directly or through the TURN
  server), relay addresses advertised.
- cluster Endpoints use a SplitHostPort-compatible syntax,
  host[/prefix][:port[-end]], with no transport
- Peer ports are no longer enforced
- server: sessions in one generic conntrack table, keyed by the client
  and peer 5-tuple pair
- l4 server: a generic forwarder pumps flows
- turn server: tracks its conns for the offload bookkeeping
- object and the workers they run share one lifecycle: Start builds the
  worker, Close drops it, Reconcile applies only what changes in place,
  anything else is a restart.
- internally, Conns are tagged with the name and protocol of the
  listener or cluster that made them
- the config client still accepts v1 with auto-conversion to v2
- stunnerd gets new CLI flags: --license takes the license config as the
  single-line JSON "licensegen -o json" writes, --offload sets the
  offload engine on every interface; both override the config, and
  --no-graceful-shutdown closes th... (continued)

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