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Fix diskstats exclude flags (#2487)

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Correctly handle the new `collector.diskstats.device-exclude` flag to
avoid errors when using the old `collector.diskstats.ignored-devices`
flag.

Fixes: https://github.com/prometheus/node_exporter/issues/2486

Signed-off-by: Ben Kochie <superq@gmail.com>
This commit is contained in:
Ben Kochie 2022-09-28 15:00:37 +02:00
parent 7da1321761
commit 8b87a2ecdf
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GPG key ID: C646B23C9E3245F1
1 changed files with 15 additions and 4 deletions
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17
collector/diskstats_common.go
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@ -33,8 +33,19 @@ const (
var ( var (
diskLabelNames = []string{"device"} diskLabelNames = []string{"device"}
diskstatsDeviceExclude = kingpin.Flag("collector.diskstats.device-exclude", "Regexp of diskstats devices to exclude (mutually exclusive to device-include).").Default(diskstatsDefaultIgnoredDevices).String() diskstatsDeviceExcludeSet bool
oldDiskstatsDeviceExclude = kingpin.Flag("collector.diskstats.ignored-devices", "DEPRECATED: Use collector.diskstats.device-exclude").String() diskstatsDeviceExclude = kingpin.Flag(
"collector.diskstats.device-exclude",
"Regexp of diskstats devices to exclude (mutually exclusive to device-include).",
).Default(diskstatsDefaultIgnoredDevices).PreAction(func(c *kingpin.ParseContext) error {
diskstatsDeviceExcludeSet = true
return nil
}).String()
oldDiskstatsDeviceExclude = kingpin.Flag(
"collector.diskstats.ignored-devices",
"DEPRECATED: Use collector.diskstats.device-exclude",
).Hidden().String()
diskstatsDeviceInclude = kingpin.Flag("collector.diskstats.device-include", "Regexp of diskstats devices to include (mutually exclusive to device-exclude).").String() diskstatsDeviceInclude = kingpin.Flag("collector.diskstats.device-include", "Regexp of diskstats devices to include (mutually exclusive to device-exclude).").String()
readsCompletedDesc = prometheus.NewDesc( readsCompletedDesc = prometheus.NewDesc(
@ -84,7 +95,7 @@ var (
func newDiskstatsDeviceFilter(logger log.Logger) (deviceFilter, error) { func newDiskstatsDeviceFilter(logger log.Logger) (deviceFilter, error) {
if *oldDiskstatsDeviceExclude != "" { if *oldDiskstatsDeviceExclude != "" {
if *diskstatsDeviceExclude == "" { if !diskstatsDeviceExcludeSet {
level.Warn(logger).Log("msg", "--collector.diskstats.ignored-devices is DEPRECATED and will be removed in 2.0.0, use --collector.diskstats.device-exclude") level.Warn(logger).Log("msg", "--collector.diskstats.ignored-devices is DEPRECATED and will be removed in 2.0.0, use --collector.diskstats.device-exclude")
*diskstatsDeviceExclude = *oldDiskstatsDeviceExclude *diskstatsDeviceExclude = *oldDiskstatsDeviceExclude
} else { } else {