Jeff McCune 8abd03e165 (#175) Log x-request-id and x-b3-trace headers ...

This patch logs the x-request-id header which makes it straight forward
to correlate the logs with the service mesh logs.

For example, select the request id from the gateway logs by copying the
log from the holos server logs.

```sh
kubectl -n istio-ingress logs -l app=istio-ingressgateway -f \
  | grep --line-buffered '^{' \
  | jq 'select(.request_id=="'d0867115-5795-4096-942e-5ac188cdf618'")'
```

```json
{
  "upstream_local_address": "10.244.1.51:44248",
  "x_forwarded_for": "192.168.2.21",
  "authority": "jeff.app.dev.k2.holos.run:443",
  "upstream_transport_failure_reason": null,
  "connection_termination_details": null,
  "response_code": 200,
  "duration": 6,
  "response_flags": "-",
  "upstream_service_time": "5",
  "upstream_cluster": "outbound|3000||holos.jeff-holos.svc.cluster.local",
  "upstream_host": "10.244.1.249:3000",
  "user_agent": "connect-go/1.16.0 (go1.22.2)",
  "requested_server_name": "jeff.app.dev.k2.holos.run",
  "request_id": "d0867115-5795-4096-942e-5ac188cdf618",
  "start_time": "2024-05-17T03:16:37.900Z",
  "method": "POST",
  "protocol": "HTTP/2",
  "downstream_local_address": "65.102.23.41:443",
  "path": "/holos.user.v1alpha1.UserService/GetUser",
  "bytes_sent": 159,
  "downstream_remote_address": "192.168.2.21:59564",
  "response_code_details": "via_upstream",
  "bytes_received": 0,
  "route_name": "holos-api"
}
```

2024-05-16 20:14:34 -07:00

..

logger.go

(#175) Log x-request-id and x-b3-trace headers

2024-05-16 20:14:34 -07:00