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Add systemd version as label string.

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Signed-off-by: Ben Kochie <superq@gmail.com>
This commit is contained in:
Ben Kochie 2022-02-17 14:25:49 +01:00
parent 5981bbe638
commit 5c0e4d61c8
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GPG key ID: C646B23C9E3245F1
1 changed files with 14 additions and 9 deletions
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23
collector/systemd_linux.go
View file

@ -131,7 +131,7 @@ func NewSystemdCollector(logger log.Logger) (Collector, error) {
"Total number of refused socket connections", []string{"name"}, nil)
systemdVersionDesc := prometheus.NewDesc(
prometheus.BuildFQName(namespace, subsystem, "version"),
"Detected systemd version", []string{}, nil)
"Detected systemd version", []string{"version"}, nil)
if *oldUnitExclude != "" {
if !unitExcludeSet {
@ -183,12 +183,16 @@ func (c *systemdCollector) Update(ch chan<- prometheus.Metric) error {
}
defer conn.Close()
systemdVersion := c.getSystemdVersion(conn)
systemdVersion, systemdVersionFull := c.getSystemdVersion(conn)
if systemdVersion < minSystemdVersionSystemState {
level.Debug(c.logger).Log("msg", "Detected systemd version is lower than minimum, some systemd state and timer metrics will not be available", "current", systemdVersion, "minimum", minSystemdVersionSystemState)
}
ch <- prometheus.MustNewConstMetric(
c.systemdVersionDesc, prometheus.GaugeValue, systemdVersion)
c.systemdVersionDesc,
prometheus.GaugeValue,
systemdVersion,
systemdVersionFull,
)
allUnits, err := c.getAllUnits(conn)
if err != nil {
@ -487,18 +491,19 @@ func filterUnits(units []unit, includePattern, excludePattern *regexp.Regexp, lo
return filtered
}
func (c *systemdCollector) getSystemdVersion(conn *dbus.Conn) float64 {
func (c *systemdCollector) getSystemdVersion(conn *dbus.Conn) (float64, string) {
version, err := conn.GetManagerProperty("Version")
if err != nil {
level.Debug(c.logger).Log("msg", "Unable to get systemd version property, defaulting to 0")
return 0
return 0, ""
}
version = strings.TrimPrefix(strings.TrimSuffix(version, `"`), `"`)
level.Debug(c.logger).Log("msg", "Got systemd version", "version", version)
version = systemdVersionRE.FindString(version)
v, err := strconv.ParseFloat(version, 64)
parsedVersion := systemdVersionRE.FindString(version)
v, err := strconv.ParseFloat(parsedVersion, 64)
if err != nil {
level.Debug(c.logger).Log("msg", "Got invalid systemd version", "version", version)
return 0
return 0, ""
}
return v
return v, version
}