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@sknat sknat commented Sep 2, 2025

This patch splits the CNI watcher and handlers
in two pieces. The handling will be done in the main
'felix' goroutine, while the watching / grpc server
will live under watchers/ and not store or access agent
state.

The intent is to move away from a model with multiple servers
replicating state and communicating over a pubsub. This being
prone to race conditions, deadlocks, and not providing many
benefits as scale & asynchronicity will not be a constraint
on nodes with relatively small number of pods (~100) as is k8s
default.

@sknat sknat self-assigned this Sep 2, 2025
This patch splits the felix server in two pieces:
- a felix watcher placed under `agent/watchers/felix`
- a felix server placed under `agent/felix`

The former will have only the responsibility of watching
and submitting events into a single event queue.
The latter will receive the event in a single goroutine
and proceed to program VPP as a single thred.

The intent is to move away from a model with multiple servers
replicating state and communicating over a pubsub. This being
prone to race conditions, deadlocks, and not providing many
benefits as scale & asynchronicity will not be a constraint
on nodes with relatively small number of pods (~100) as is k8s
default.

Signed-off-by: Nathan Skrzypczak <[email protected]>
This patch splits the CNI watcher and handlers
in two pieces. The handling will be done in the main
'felix' goroutine, while the watching / grpc server
will live under watchers/ and not store or access agent
state.

The intent is to move away from a model with multiple servers
replicating state and communicating over a pubsub. This being
prone to race conditions, deadlocks, and not providing many
benefits as scale & asynchronicity will not be a constraint
on nodes with relatively small number of pods (~100) as is k8s
default.

Signed-off-by: Nathan Skrzypczak <[email protected]>
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