Add access log for rest and router connections

[plorenz]

Add access logs to the controller, logging the following connections to controllers:

1. Identity (REST API)
2. Router
3. Controller peers

Event Type reference:

type ConnectSource string

const (
	ConnectEventNS                      = "connect"
	ConnectSourceRouter   ConnectSource = "router"
	ConnectSourcePeer     ConnectSource = "peer"
	ConnectSourceIdentity ConnectSource = "identity"
)

type ConnectEvent struct {
	Namespace string        `json:"namespace"`
	SrcType   ConnectSource `json:"src_type"`
	SrcId     string        `json:"src_id"`
	SrcAddr   string        `json:"src_addr"`
	DstId     string        `json:"dst_id"`
	DstAddr   string        `json:"dst_addr"`
	Timestamp time.Time     `json:"timestamp"`
}

Example events:

{
  "namespace": "connect",
  "src_type": "identity",
  "src_id": "ji2Rt8KJ4",
  "src_addr": "127.0.0.1:59336",
  "dst_id": "ctrl_client",
  "dst_addr": "localhost:1280/edge/management/v1/edge-routers/2L7NeVuGBU",
  "timestamp": "2024-10-02T12:17:39.501821249-04:00"
}
{
  "namespace": "connect",
  "src_type": "router",
  "src_id": "2L7NeVuGBU",
  "src_addr": "127.0.0.1:42702",
  "dst_id": "ctrl_client",
  "dst_addr": "127.0.0.1:6262",
  "timestamp": "2024-10-02T12:17:40.529865849-04:00"
}
{
  "namespace": "connect",
  "src_type": "peer",
  "src_id": "ctrl2",
  "src_addr": "127.0.0.1:40056",
  "dst_id": "ctrl1",
  "dst_addr": "127.0.0.1:6262",
  "timestamp": "2024-10-02T12:37:04.490859197-04:00"
}

[r-caamano]

Any guidance on when this feature will be added?

[plorenz]

Any guidance on when this feature will be added?

I'll see if I can get it in the next release with HA Beta 1.