Merge branch 'split-export-functions-into-separate-package' into 'main'
Split export functions into separate package See merge request hectorjsmith/fail2ban-prometheus-exporter!33
This commit is contained in:
Hector
commit
964fbfd0f8
25
src/export/build.go
Normal file
25
src/export/build.go
Normal file
@ -0,0 +1,25 @@
|
||||
package export
|
||||
|
||||
import (
|
||||
"fail2ban-prometheus-exporter/cfg"
|
||||
fail2banDb "fail2ban-prometheus-exporter/db"
|
||||
"log"
|
||||
)
|
||||
|
||||
func NewExporter(appSettings *cfg.AppSettings, exporterVersion string) *Exporter {
|
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exporter := &Exporter{
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||||
exporterVersion: exporterVersion,
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||||
lastError: nil,
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||||
dbErrorCount: 0,
|
||||
socketConnectionErrorCount: 0,
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||||
socketRequestErrorCount: 0,
|
||||
}
|
||||
if appSettings.Fail2BanDbPath != "" {
|
||||
log.Print("database-based metrics have been deprecated and will be removed in a future release")
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||||
exporter.db = fail2banDb.MustConnectToDb(appSettings.Fail2BanDbPath)
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||||
}
|
||||
if appSettings.Fail2BanSocketPath != "" {
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||||
exporter.socketPath = appSettings.Fail2BanSocketPath
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}
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return exporter
|
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}
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102
src/export/database.go
Normal file
102
src/export/database.go
Normal file
@ -0,0 +1,102 @@
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package export
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import (
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"github.com/prometheus/client_golang/prometheus"
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"log"
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)
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||||
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const (
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||||
deprecatedNamespace = "fail2ban"
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||||
)
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||||
|
||||
var (
|
||||
deprecatedMetricUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "up"),
|
||||
"(Deprecated) Was the last fail2ban query successful.",
|
||||
nil, nil,
|
||||
)
|
||||
deprecatedMetricBannedIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "banned_ips"),
|
||||
"(Deprecated) Number of banned IPs stored in the database (per jail).",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
deprecatedMetricBadIpsPerJail = prometheus.NewDesc(
|
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prometheus.BuildFQName(deprecatedNamespace, "", "bad_ips"),
|
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"(Deprecated) Number of bad IPs stored in the database (per jail).",
|
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[]string{"jail"}, nil,
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)
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||||
deprecatedMetricEnabledJails = prometheus.NewDesc(
|
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prometheus.BuildFQName(deprecatedNamespace, "", "enabled_jails"),
|
||||
"(Deprecated) Enabled jails.",
|
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[]string{"jail"}, nil,
|
||||
)
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deprecatedMetricErrorCount = prometheus.NewDesc(
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prometheus.BuildFQName(deprecatedNamespace, "", "errors"),
|
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"(Deprecated) Number of errors found since startup.",
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[]string{"type"}, nil,
|
||||
)
|
||||
)
|
||||
|
||||
func (e *Exporter) collectDeprecatedUpMetric(ch chan<- prometheus.Metric) {
|
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var upMetricValue float64 = 1
|
||||
if e.lastError != nil {
|
||||
upMetricValue = 0
|
||||
}
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||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricUp, prometheus.GaugeValue, upMetricValue,
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||||
)
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}
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|
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func (e *Exporter) collectDeprecatedErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
)
|
||||
}
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||||
|
||||
func (e *Exporter) collectDeprecatedBadIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
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jailNameToCountMap, err := e.db.CountBadIpsPerJail()
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e.lastError = err
|
||||
|
||||
if err != nil {
|
||||
e.dbErrorCount++
|
||||
log.Print(err)
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||||
}
|
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|
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for jailName, count := range jailNameToCountMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricBadIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
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}
|
||||
|
||||
func (e *Exporter) collectDeprecatedBannedIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToCountMap, err := e.db.CountBannedIpsPerJail()
|
||||
e.lastError = err
|
||||
|
||||
if err != nil {
|
||||
e.dbErrorCount++
|
||||
log.Print(err)
|
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}
|
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|
||||
for jailName, count := range jailNameToCountMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricBannedIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectDeprecatedEnabledJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToEnabledMap, err := e.db.JailNameToEnabledValue()
|
||||
e.lastError = err
|
||||
|
||||
if err != nil {
|
||||
e.dbErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
|
||||
for jailName, count := range jailNameToEnabledMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricEnabledJails, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
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64
src/export/exporter.go
Normal file
64
src/export/exporter.go
Normal file
@ -0,0 +1,64 @@
|
||||
package export
|
||||
|
||||
import (
|
||||
fail2banDb "fail2ban-prometheus-exporter/db"
|
||||
"fail2ban-prometheus-exporter/socket"
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||||
"github.com/prometheus/client_golang/prometheus"
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||||
"log"
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||||
)
|
||||
|
||||
type Exporter struct {
|
||||
db *fail2banDb.Fail2BanDB
|
||||
socketPath string
|
||||
exporterVersion string
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||||
lastError error
|
||||
dbErrorCount int
|
||||
socketConnectionErrorCount int
|
||||
socketRequestErrorCount int
|
||||
}
|
||||
|
||||
func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
|
||||
if e.db != nil {
|
||||
ch <- deprecatedMetricUp
|
||||
ch <- deprecatedMetricBadIpsPerJail
|
||||
ch <- deprecatedMetricBannedIpsPerJail
|
||||
ch <- deprecatedMetricEnabledJails
|
||||
ch <- deprecatedMetricErrorCount
|
||||
}
|
||||
if e.socketPath != "" {
|
||||
ch <- metricServerUp
|
||||
ch <- metricJailCount
|
||||
ch <- metricJailFailedCurrent
|
||||
ch <- metricJailFailedTotal
|
||||
ch <- metricJailBannedCurrent
|
||||
ch <- metricJailBannedTotal
|
||||
}
|
||||
ch <- metricErrorCount
|
||||
}
|
||||
|
||||
func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
|
||||
if e.db != nil {
|
||||
e.collectDeprecatedBadIpsPerJailMetrics(ch)
|
||||
e.collectDeprecatedBannedIpsPerJailMetrics(ch)
|
||||
e.collectDeprecatedEnabledJailMetrics(ch)
|
||||
e.collectDeprecatedUpMetric(ch)
|
||||
e.collectDeprecatedErrorCountMetric(ch)
|
||||
}
|
||||
if e.socketPath != "" {
|
||||
s, err := socket.ConnectToSocket(e.socketPath)
|
||||
if err != nil {
|
||||
log.Printf("error opening socket: %v", err)
|
||||
e.socketConnectionErrorCount++
|
||||
} else {
|
||||
defer s.Close()
|
||||
}
|
||||
e.collectServerUpMetric(ch, s)
|
||||
if err == nil && s != nil {
|
||||
e.collectJailMetrics(ch, s)
|
||||
}
|
||||
e.collectVersionMetric(ch, s)
|
||||
} else {
|
||||
e.collectVersionMetric(ch, nil)
|
||||
}
|
||||
e.collectErrorCountMetric(ch)
|
||||
}
|
||||
140
src/export/socket.go
Normal file
140
src/export/socket.go
Normal file
@ -0,0 +1,140 @@
|
||||
package export
|
||||
|
||||
import (
|
||||
"fail2ban-prometheus-exporter/socket"
|
||||
"github.com/prometheus/client_golang/prometheus"
|
||||
"log"
|
||||
)
|
||||
|
||||
const (
|
||||
namespace = "f2b"
|
||||
)
|
||||
|
||||
var (
|
||||
metricErrorCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "errors"),
|
||||
"Number of errors found since startup",
|
||||
[]string{"type"}, nil,
|
||||
)
|
||||
metricServerUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "up"),
|
||||
"Check if the fail2ban server is up",
|
||||
nil, nil,
|
||||
)
|
||||
metricJailCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_count"),
|
||||
"Number of defined jails",
|
||||
nil, nil,
|
||||
)
|
||||
metricJailFailedCurrent = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_failed_current"),
|
||||
"Number of current failures on this jail's filter",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailFailedTotal = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_failed_total"),
|
||||
"Number of total failures on this jail's filter",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailBannedCurrent = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_banned_current"),
|
||||
"Number of IPs currently banned in this jail",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailBannedTotal = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_banned_total"),
|
||||
"Total number of IPs banned by this jail (includes expired bans)",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricVersionInfo = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "version"),
|
||||
"Version of the exporter and fail2ban server",
|
||||
[]string{"exporter", "fail2ban"}, nil,
|
||||
)
|
||||
)
|
||||
|
||||
func (e *Exporter) collectErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.socketConnectionErrorCount), "socket_conn",
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.socketRequestErrorCount), "socket_req",
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectServerUpMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
|
||||
var serverUp float64 = 0
|
||||
if s != nil {
|
||||
pingSuccess, err := s.Ping()
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
if err == nil && pingSuccess {
|
||||
serverUp = 1
|
||||
}
|
||||
}
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricServerUp, prometheus.GaugeValue, serverUp,
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectJailMetrics(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
|
||||
jails, err := s.GetJails()
|
||||
var count float64 = 0
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
if err == nil {
|
||||
count = float64(len(jails))
|
||||
}
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailCount, prometheus.GaugeValue, count,
|
||||
)
|
||||
|
||||
for i := range jails {
|
||||
e.collectJailStatsMetric(ch, s, jails[i])
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectJailStatsMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket, jail string) {
|
||||
stats, err := s.GetJailStats(jail)
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Printf("failed to get stats for jail %s: %v", jail, err)
|
||||
return
|
||||
}
|
||||
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailFailedCurrent, prometheus.GaugeValue, float64(stats.FailedCurrent), jail,
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailFailedTotal, prometheus.GaugeValue, float64(stats.FailedTotal), jail,
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailBannedCurrent, prometheus.GaugeValue, float64(stats.BannedCurrent), jail,
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailBannedTotal, prometheus.GaugeValue, float64(stats.BannedTotal), jail,
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectVersionMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
|
||||
var err error
|
||||
var fail2banVersion = ""
|
||||
if s != nil {
|
||||
fail2banVersion, err = s.GetServerVersion()
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Printf("failed to get fail2ban server version: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricVersionInfo, prometheus.GaugeValue, float64(1), e.exporterVersion, fail2banVersion,
|
||||
)
|
||||
}
|
||||
289
src/exporter.go
289
src/exporter.go
@ -2,8 +2,7 @@ package main
|
||||
|
||||
import (
|
||||
"fail2ban-prometheus-exporter/cfg"
|
||||
fail2banDb "fail2ban-prometheus-exporter/db"
|
||||
"fail2ban-prometheus-exporter/socket"
|
||||
"fail2ban-prometheus-exporter/export"
|
||||
"fmt"
|
||||
"log"
|
||||
"net/http"
|
||||
@ -13,290 +12,13 @@ import (
|
||||
"github.com/prometheus/client_golang/prometheus/promhttp"
|
||||
)
|
||||
|
||||
const (
|
||||
deprecatedNamespace = "fail2ban"
|
||||
namespace = "f2b"
|
||||
)
|
||||
|
||||
var (
|
||||
version = "dev"
|
||||
commit = "none"
|
||||
date = "unknown"
|
||||
builtBy = "unknown"
|
||||
|
||||
deprecatedMetricUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "up"),
|
||||
"(Deprecated) Was the last fail2ban query successful.",
|
||||
nil, nil,
|
||||
)
|
||||
deprecatedMetricBannedIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "banned_ips"),
|
||||
"(Deprecated) Number of banned IPs stored in the database (per jail).",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
deprecatedMetricBadIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "bad_ips"),
|
||||
"(Deprecated) Number of bad IPs stored in the database (per jail).",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
deprecatedMetricEnabledJails = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "enabled_jails"),
|
||||
"(Deprecated) Enabled jails.",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
deprecatedMetricErrorCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "errors"),
|
||||
"(Deprecated) Number of errors found since startup.",
|
||||
[]string{"type"}, nil,
|
||||
)
|
||||
|
||||
metricErrorCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "errors"),
|
||||
"Number of errors found since startup",
|
||||
[]string{"type"}, nil,
|
||||
)
|
||||
metricServerUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "up"),
|
||||
"Check if the fail2ban server is up",
|
||||
nil, nil,
|
||||
)
|
||||
metricJailCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_count"),
|
||||
"Number of defined jails",
|
||||
nil, nil,
|
||||
)
|
||||
metricJailFailedCurrent = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_failed_current"),
|
||||
"Number of current failures on this jail's filter",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailFailedTotal = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_failed_total"),
|
||||
"Number of total failures on this jail's filter",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailBannedCurrent = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_banned_current"),
|
||||
"Number of IPs currently banned in this jail",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailBannedTotal = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "jail_banned_total"),
|
||||
"Total number of IPs banned by this jail (includes expired bans)",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricVersionInfo = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "version"),
|
||||
"Version of the exporter and fail2ban server",
|
||||
[]string{"exporter", "fail2ban"}, nil,
|
||||
)
|
||||
)
|
||||
|
||||
type Exporter struct {
|
||||
db *fail2banDb.Fail2BanDB
|
||||
socketPath string
|
||||
lastError error
|
||||
dbErrorCount int
|
||||
socketConnectionErrorCount int
|
||||
socketRequestErrorCount int
|
||||
}
|
||||
|
||||
func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
|
||||
if e.db != nil {
|
||||
ch <- deprecatedMetricUp
|
||||
ch <- deprecatedMetricBadIpsPerJail
|
||||
ch <- deprecatedMetricBannedIpsPerJail
|
||||
ch <- deprecatedMetricEnabledJails
|
||||
ch <- deprecatedMetricErrorCount
|
||||
}
|
||||
if e.socketPath != "" {
|
||||
ch <- metricServerUp
|
||||
ch <- metricJailCount
|
||||
ch <- metricJailFailedCurrent
|
||||
ch <- metricJailFailedTotal
|
||||
ch <- metricJailBannedCurrent
|
||||
ch <- metricJailBannedTotal
|
||||
}
|
||||
ch <- metricErrorCount
|
||||
}
|
||||
|
||||
func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
|
||||
if e.db != nil {
|
||||
e.collectDeprecatedBadIpsPerJailMetrics(ch)
|
||||
e.collectDeprecatedBannedIpsPerJailMetrics(ch)
|
||||
e.collectDeprecatedEnabledJailMetrics(ch)
|
||||
e.collectDeprecatedUpMetric(ch)
|
||||
e.collectDeprecatedErrorCountMetric(ch)
|
||||
}
|
||||
if e.socketPath != "" {
|
||||
s, err := socket.ConnectToSocket(e.socketPath)
|
||||
if err != nil {
|
||||
log.Printf("error opening socket: %v", err)
|
||||
e.socketConnectionErrorCount++
|
||||
} else {
|
||||
defer s.Close()
|
||||
}
|
||||
e.collectServerUpMetric(ch, s)
|
||||
if err == nil && s != nil {
|
||||
e.collectJailMetrics(ch, s)
|
||||
}
|
||||
e.collectVersionMetric(ch, s)
|
||||
} else {
|
||||
e.collectVersionMetric(ch, nil)
|
||||
}
|
||||
e.collectErrorCountMetric(ch)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectDeprecatedUpMetric(ch chan<- prometheus.Metric) {
|
||||
var upMetricValue float64 = 1
|
||||
if e.lastError != nil {
|
||||
upMetricValue = 0
|
||||
}
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricUp, prometheus.GaugeValue, upMetricValue,
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectDeprecatedErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectDeprecatedBadIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToCountMap, err := e.db.CountBadIpsPerJail()
|
||||
e.lastError = err
|
||||
|
||||
if err != nil {
|
||||
e.dbErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
|
||||
for jailName, count := range jailNameToCountMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricBadIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectDeprecatedBannedIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToCountMap, err := e.db.CountBannedIpsPerJail()
|
||||
e.lastError = err
|
||||
|
||||
if err != nil {
|
||||
e.dbErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
|
||||
for jailName, count := range jailNameToCountMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricBannedIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectDeprecatedEnabledJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToEnabledMap, err := e.db.JailNameToEnabledValue()
|
||||
e.lastError = err
|
||||
|
||||
if err != nil {
|
||||
e.dbErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
|
||||
for jailName, count := range jailNameToEnabledMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
deprecatedMetricEnabledJails, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.socketConnectionErrorCount), "socket_conn",
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.socketRequestErrorCount), "socket_req",
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectServerUpMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
|
||||
var serverUp float64 = 0
|
||||
if s != nil {
|
||||
pingSuccess, err := s.Ping()
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
if err == nil && pingSuccess {
|
||||
serverUp = 1
|
||||
}
|
||||
}
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricServerUp, prometheus.GaugeValue, serverUp,
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectJailMetrics(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
|
||||
jails, err := s.GetJails()
|
||||
var count float64 = 0
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Print(err)
|
||||
}
|
||||
if err == nil {
|
||||
count = float64(len(jails))
|
||||
}
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailCount, prometheus.GaugeValue, count,
|
||||
)
|
||||
|
||||
for i := range jails {
|
||||
e.collectJailStatsMetric(ch, s, jails[i])
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectJailStatsMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket, jail string) {
|
||||
stats, err := s.GetJailStats(jail)
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Printf("failed to get stats for jail %s: %v", jail, err)
|
||||
return
|
||||
}
|
||||
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailFailedCurrent, prometheus.GaugeValue, float64(stats.FailedCurrent), jail,
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailFailedTotal, prometheus.GaugeValue, float64(stats.FailedTotal), jail,
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailBannedCurrent, prometheus.GaugeValue, float64(stats.BannedCurrent), jail,
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricJailBannedTotal, prometheus.GaugeValue, float64(stats.BannedTotal), jail,
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectVersionMetric(ch chan<- prometheus.Metric, s *socket.Fail2BanSocket) {
|
||||
var err error
|
||||
var fail2banVersion = ""
|
||||
if s != nil {
|
||||
fail2banVersion, err = s.GetServerVersion()
|
||||
if err != nil {
|
||||
e.socketRequestErrorCount++
|
||||
log.Printf("failed to get fail2ban server version: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricVersionInfo, prometheus.GaugeValue, float64(1), version, fail2banVersion,
|
||||
)
|
||||
}
|
||||
|
||||
func printAppVersion() {
|
||||
fmt.Println(version)
|
||||
fmt.Printf(" build date: %s\r\n commit hash: %s\r\n built by: %s\r\n", date, commit, builtBy)
|
||||
@ -309,14 +31,7 @@ func main() {
|
||||
} else {
|
||||
log.Print("starting fail2ban exporter")
|
||||
|
||||
exporter := &Exporter{}
|
||||
if appSettings.Fail2BanDbPath != "" {
|
||||
log.Print("database-based metrics have been deprecated and will be removed in a future release")
|
||||
exporter.db = fail2banDb.MustConnectToDb(appSettings.Fail2BanDbPath)
|
||||
}
|
||||
if appSettings.Fail2BanSocketPath != "" {
|
||||
exporter.socketPath = appSettings.Fail2BanSocketPath
|
||||
}
|
||||
exporter := export.NewExporter(appSettings, version)
|
||||
prometheus.MustRegister(exporter)
|
||||
|
||||
http.Handle("/metrics", promhttp.Handler())
|
||||
|
||||
Loading…
Reference in New Issue
Block a user