scylla-node-exporter: Add ethtool to node exporter
AWS suggests following multiple network performance metrics:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/monitoring-network-performance-ena.html#network-performance-metrics
This patch enables the ethtool collector with the specific list of
metrics
Ater this patch the relevant metris looks like:
$ curl http://localhost:9100/metrics |& grep ethtool
node_ethtool_bw_in_allowance_exceeded{device="ens5"} 0
node_ethtool_bw_out_allowance_exceeded{device="ens5"} 0
node_ethtool_conntrack_allowance_available{device="ens5"} 51303
node_ethtool_conntrack_allowance_exceeded{device="ens5"} 0
node_ethtool_info{bus_info="0000:00:05.0",device="ens5",driver="ena",expansion_rom_version="",firmware_version="",version="6.14.0-1015-aws"} 1
node_ethtool_linklocal_allowance_exceeded{device="ens5"} 0
node_scrape_collector_duration_seconds{collector="ethtool"} 0.001091436
node_scrape_collector_success{collector="ethtool"} 1
Signed-off-by: Amnon Heiman <amnon@scylladb.com>
Closes scylladb/scylladb#27358
a213e41250