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// Copyright 2019 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !nodiskstats && (openbsd || linux || darwin || aix)
// +build !nodiskstats
// +build openbsd linux darwin aix
package collector
import (
"errors"
"log/slog"
"github.com/prometheus/client_golang/prometheus"
"gopkg.in/alecthomas/kingpin.v2"
)
const (
diskSubsystem = "disk"
)
var (
diskLabelNames = []string{"device"}
diskstatsDeviceExcludeSet bool
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()
readsCompletedDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "reads_completed_total"),
"The total number of reads completed successfully.",
diskLabelNames, nil,
)
readBytesDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "read_bytes_total"),
"The total number of bytes read successfully.",
diskLabelNames, nil,
)
writesCompletedDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "writes_completed_total"),
"The total number of writes completed successfully.",
diskLabelNames, nil,
)
writtenBytesDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "written_bytes_total"),
"The total number of bytes written successfully.",
diskLabelNames, nil,
)
ioTimeSecondsDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "io_time_seconds_total"),
"Total seconds spent doing I/Os.",
diskLabelNames, nil,
)
readTimeSecondsDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "read_time_seconds_total"),
"The total number of seconds spent by all reads.",
diskLabelNames,
nil,
)
writeTimeSecondsDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, diskSubsystem, "write_time_seconds_total"),
"This is the total number of seconds spent by all writes.",
diskLabelNames,
nil,
)
)
func newDiskstatsDeviceFilter(logger *slog.Logger) (deviceFilter, error) {
if *oldDiskstatsDeviceExclude != "" {
if !diskstatsDeviceExcludeSet {
logger.Warn("--collector.diskstats.ignored-devices is DEPRECATED and will be removed in 2.0.0, use --collector.diskstats.device-exclude")
*diskstatsDeviceExclude = *oldDiskstatsDeviceExclude
} else {
return deviceFilter{}, errors.New("--collector.diskstats.ignored-devices and --collector.diskstats.device-exclude are mutually exclusive")
}
}
if *diskstatsDeviceExclude != "" && *diskstatsDeviceInclude != "" {
return deviceFilter{}, errors.New("device-exclude & device-include are mutually exclusive")
}
if *diskstatsDeviceExclude != "" {
logger.Info("Parsed flag --collector.diskstats.device-exclude", "flag", *diskstatsDeviceExclude)
}
if *diskstatsDeviceInclude != "" {
logger.Info("Parsed Flag --collector.diskstats.device-include", "flag", *diskstatsDeviceInclude)
}
return newDeviceFilter(*diskstatsDeviceExclude, *diskstatsDeviceInclude), nil
}
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