refactor: deprecate database metrics
Update all old database-based metrics to include the `deprecated` text. Add a warning on startup if connecting to the fail2ban database to state that this functionality will be removed in a future release. Rename deprecated methods and variables.
This commit is contained in:
Hector
parent
737a86b6fd
commit
5b62670e9d
@ -22,7 +22,7 @@ func Parse() *AppSettings {
|
||||
appSettings := &AppSettings{}
|
||||
flag.BoolVar(&appSettings.VersionMode, "version", false, "show version info and exit")
|
||||
flag.IntVar(&appSettings.MetricsPort, "port", 9191, "port to use for the metrics server")
|
||||
flag.StringVar(&appSettings.Fail2BanDbPath, "db", "", "path to the fail2ban sqlite database")
|
||||
flag.StringVar(&appSettings.Fail2BanDbPath, "db", "", "path to the fail2ban sqlite database (deprecated)")
|
||||
flag.StringVar(&appSettings.Fail2BanSocketPath, "socket", "", "path to the fail2ban server socket")
|
||||
|
||||
flag.Parse()
|
||||
|
||||
103
src/exporter.go
103
src/exporter.go
@ -14,8 +14,8 @@ import (
|
||||
)
|
||||
|
||||
const (
|
||||
namespace = "fail2ban"
|
||||
sockNamespace = "f2b"
|
||||
deprecatedNamespace = "fail2ban"
|
||||
namespace = "f2b"
|
||||
)
|
||||
|
||||
var (
|
||||
@ -24,64 +24,64 @@ var (
|
||||
date = "unknown"
|
||||
builtBy = "unknown"
|
||||
|
||||
metricUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "up"),
|
||||
"Was the last fail2ban query successful.",
|
||||
deprecatedMetricUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "up"),
|
||||
"(Deprecated) Was the last fail2ban query successful.",
|
||||
nil, nil,
|
||||
)
|
||||
metricBannedIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "banned_ips"),
|
||||
"Number of banned IPs stored in the database (per jail).",
|
||||
deprecatedMetricBannedIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "banned_ips"),
|
||||
"(Deprecated) Number of banned IPs stored in the database (per jail).",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricBadIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "bad_ips"),
|
||||
"Number of bad IPs stored in the database (per jail).",
|
||||
deprecatedMetricBadIpsPerJail = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "bad_ips"),
|
||||
"(Deprecated) Number of bad IPs stored in the database (per jail).",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricEnabledJails = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "enabled_jails"),
|
||||
"Enabled jails.",
|
||||
deprecatedMetricEnabledJails = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "enabled_jails"),
|
||||
"(Deprecated) Enabled jails.",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricErrorCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "errors"),
|
||||
"Number of errors found since startup.",
|
||||
deprecatedMetricErrorCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(deprecatedNamespace, "", "errors"),
|
||||
"(Deprecated) Number of errors found since startup.",
|
||||
[]string{"type"}, nil,
|
||||
)
|
||||
|
||||
metricErrorCountNew = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "errors"),
|
||||
metricErrorCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(namespace, "", "errors"),
|
||||
"Number of errors found since startup",
|
||||
[]string{"type"}, nil,
|
||||
)
|
||||
metricServerUp = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "up"),
|
||||
prometheus.BuildFQName(namespace, "", "up"),
|
||||
"Check if the fail2ban server is up",
|
||||
nil, nil,
|
||||
)
|
||||
metricJailCount = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "jail_count"),
|
||||
prometheus.BuildFQName(namespace, "", "jail_count"),
|
||||
"Number of defined jails",
|
||||
nil, nil,
|
||||
)
|
||||
metricJailFailedCurrent = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "jail_failed_current"),
|
||||
prometheus.BuildFQName(namespace, "", "jail_failed_current"),
|
||||
"Number of current failures on this jail's filter",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailFailedTotal = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "jail_failed_total"),
|
||||
prometheus.BuildFQName(namespace, "", "jail_failed_total"),
|
||||
"Number of total failures on this jail's filter",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailBannedCurrent = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "jail_banned_current"),
|
||||
prometheus.BuildFQName(namespace, "", "jail_banned_current"),
|
||||
"Number of IPs currently banned in this jail",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
metricJailBannedTotal = prometheus.NewDesc(
|
||||
prometheus.BuildFQName(sockNamespace, "", "jail_banned_total"),
|
||||
prometheus.BuildFQName(namespace, "", "jail_banned_total"),
|
||||
"Total number of IPs banned by this jail (includes expired bans)",
|
||||
[]string{"jail"}, nil,
|
||||
)
|
||||
@ -98,11 +98,11 @@ type Exporter struct {
|
||||
|
||||
func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
|
||||
if e.db != nil {
|
||||
ch <- metricUp
|
||||
ch <- metricBadIpsPerJail
|
||||
ch <- metricBannedIpsPerJail
|
||||
ch <- metricEnabledJails
|
||||
ch <- metricErrorCount
|
||||
ch <- deprecatedMetricUp
|
||||
ch <- deprecatedMetricBadIpsPerJail
|
||||
ch <- deprecatedMetricBannedIpsPerJail
|
||||
ch <- deprecatedMetricEnabledJails
|
||||
ch <- deprecatedMetricErrorCount
|
||||
}
|
||||
if e.socketPath != "" {
|
||||
ch <- metricServerUp
|
||||
@ -112,16 +112,16 @@ func (e *Exporter) Describe(ch chan<- *prometheus.Desc) {
|
||||
ch <- metricJailBannedCurrent
|
||||
ch <- metricJailBannedTotal
|
||||
}
|
||||
ch <- metricErrorCountNew
|
||||
ch <- metricErrorCount
|
||||
}
|
||||
|
||||
func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
|
||||
if e.db != nil {
|
||||
e.collectBadIpsPerJailMetrics(ch)
|
||||
e.collectBannedIpsPerJailMetrics(ch)
|
||||
e.collectEnabledJailMetrics(ch)
|
||||
e.collectUpMetric(ch)
|
||||
e.collectErrorCountMetric(ch)
|
||||
e.collectDeprecatedBadIpsPerJailMetrics(ch)
|
||||
e.collectDeprecatedBannedIpsPerJailMetrics(ch)
|
||||
e.collectDeprecatedEnabledJailMetrics(ch)
|
||||
e.collectDeprecatedUpMetric(ch)
|
||||
e.collectDeprecatedErrorCountMetric(ch)
|
||||
}
|
||||
if e.socketPath != "" {
|
||||
s, err := socket.ConnectToSocket(e.socketPath)
|
||||
@ -136,26 +136,26 @@ func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
|
||||
e.collectJailMetrics(ch, s)
|
||||
}
|
||||
}
|
||||
e.collectErrorCountMetricNew(ch)
|
||||
e.collectErrorCountMetric(ch)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectUpMetric(ch chan<- prometheus.Metric) {
|
||||
func (e *Exporter) collectDeprecatedUpMetric(ch chan<- prometheus.Metric) {
|
||||
var upMetricValue float64 = 1
|
||||
if e.lastError != nil {
|
||||
upMetricValue = 0
|
||||
}
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricUp, prometheus.GaugeValue, upMetricValue,
|
||||
deprecatedMetricUp, prometheus.GaugeValue, upMetricValue,
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
func (e *Exporter) collectDeprecatedErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
deprecatedMetricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
)
|
||||
}
|
||||
|
||||
func (e *Exporter) collectBadIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
func (e *Exporter) collectDeprecatedBadIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToCountMap, err := e.db.CountBadIpsPerJail()
|
||||
e.lastError = err
|
||||
|
||||
@ -166,12 +166,12 @@ func (e *Exporter) collectBadIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
|
||||
for jailName, count := range jailNameToCountMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricBadIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
deprecatedMetricBadIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectBannedIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
func (e *Exporter) collectDeprecatedBannedIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToCountMap, err := e.db.CountBannedIpsPerJail()
|
||||
e.lastError = err
|
||||
|
||||
@ -182,12 +182,12 @@ func (e *Exporter) collectBannedIpsPerJailMetrics(ch chan<- prometheus.Metric) {
|
||||
|
||||
for jailName, count := range jailNameToCountMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricBannedIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
deprecatedMetricBannedIpsPerJail, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectEnabledJailMetrics(ch chan<- prometheus.Metric) {
|
||||
func (e *Exporter) collectDeprecatedEnabledJailMetrics(ch chan<- prometheus.Metric) {
|
||||
jailNameToEnabledMap, err := e.db.JailNameToEnabledValue()
|
||||
e.lastError = err
|
||||
|
||||
@ -198,20 +198,20 @@ func (e *Exporter) collectEnabledJailMetrics(ch chan<- prometheus.Metric) {
|
||||
|
||||
for jailName, count := range jailNameToEnabledMap {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricEnabledJails, prometheus.GaugeValue, float64(count), jailName,
|
||||
deprecatedMetricEnabledJails, prometheus.GaugeValue, float64(count), jailName,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *Exporter) collectErrorCountMetricNew(ch chan<- prometheus.Metric) {
|
||||
func (e *Exporter) collectErrorCountMetric(ch chan<- prometheus.Metric) {
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCountNew, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.dbErrorCount), "db",
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCountNew, prometheus.CounterValue, float64(e.socketConnectionErrorCount), "socket_conn",
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.socketConnectionErrorCount), "socket_conn",
|
||||
)
|
||||
ch <- prometheus.MustNewConstMetric(
|
||||
metricErrorCountNew, prometheus.CounterValue, float64(e.socketRequestErrorCount), "socket_req",
|
||||
metricErrorCount, prometheus.CounterValue, float64(e.socketRequestErrorCount), "socket_req",
|
||||
)
|
||||
}
|
||||
|
||||
@ -287,6 +287,7 @@ func main() {
|
||||
|
||||
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 != "" {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user