Sanitizing the metric names can lead to duplicate metric names:
```
caller=level.go:63 level=error caller="error gathering metrics: [from Gatherer #2] collected metric \"node_ethtool_giant_hdr\" { label:<name:\"device\" value:\"ens192\" > untyped:<value:0" msg=" > } was collected before with the same name and label values"
```
Generate a map from the sanitized metric names to the metric names from
ethtool. In case of duplicate sanitized metric names drop both metrics,
because it is unknown which one to take.
Fixes: https://github.com/prometheus/node_exporter/issues/2185
Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
The ethtool_cmd struct from the linux kernel contains information about the speeds and features supported by a
network device. This includes speeds and duplex but also features like autonegotiate and 802.3x pause frames.
Closes#1444
Signed-off-by: W. Andrew Denton <git@flying-snail.net>
Use the same flag pattern as netdev to make filtering methods the same.
* Move SanitizeMetricName to helper.go
Signed-off-by: Ben Kochie <superq@gmail.com>
Add a `node_ethtool_info` metric to all ethtool devices to expose driver
information with following labels:
* bus_info
* driver
* expansion_rom_version
* firmware_version
* version
This metric is useful to monitor the firmware version to be up-to-date.
Note: The version label might be malformed due to bug #39 in ethtool:
https://github.com/safchain/ethtool/issues/39
Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
OpenMetrics and the Prometheus exposition format require the metric name
to consist only of alphanumericals and "_", ":" and they must not start
with digits. The metric names from the ethtool stats might contain
spaces, brackets, and dots. Converting them directly to metric names
will produce invalid metric names.
Therefore sanitize the metric names and convert them to lower case.
Fixes: https://github.com/prometheus/node_exporter/issues/2083
Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
This adds a new flag --collector.ethtool.metrics-include to the ethtool
collector. Only metrics matching this regexp will be collected.
Signed-off-by: Johannes 'fish' Ziemke <github@freigeist.org>
Other network related collectors allow to filter out unwanted devices.
Add this support to the new ethtool collector as well.
Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>
