locker98/postfix_exporter
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Merge pull request #2 from UnikumAB/digineo-updates

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Digineo updates
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Per Abich 2020-02-19 18:21:39 +01:00 committed by GitHub
commit c598c828be
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4 changed files with 342 additions and 297 deletions
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32
Dockerfile
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@ -1,26 +1,24 @@
# Builder stage to FROM golang:1.13 AS builder
FROM golang:1.13 as builder WORKDIR /src
# Add the project in the image # avoid downloading the dependencies on succesive builds
ADD . /build RUN apt-get update -qq && apt-get install -qqy \
WORKDIR /build
# Install needed dependencies for the build
RUN apt-get update -q && apt-get install -qy \
build-essential \ build-essential \
libsystemd-dev libsystemd-dev
# Get dependencies and build the static binary COPY go.mod go.sum ./
RUN go mod download
RUN go mod verify
COPY . .
# Force the go compiler to use modules
ENV GO111MODULE=on
RUN go test RUN go test
RUN go build -a -tags static_all RUN go build -o /bin/postfix_exporter
# Real image
FROM debian:latest FROM debian:latest
EXPOSE 9154 EXPOSE 9154
WORKDIR / WORKDIR /
COPY --from=builder /bin/postfix_exporter /bin/
# Copy the binary from the build image to the real one ENTRYPOINT ["/bin/postfix_exporter"]
COPY --from=builder /build/postfix_exporter .
ENTRYPOINT ["/postfix_exporter"]

111
go.sum Normal file
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@ -0,0 +1,111 @@
github.com/alecthomas/kingpin v2.2.6+incompatible h1:5svnBTFgJjZvGKyYBtMB0+m5wvrbUHiqye8wRJMlnYI=
github.com/alecthomas/kingpin v2.2.6+incompatible/go.mod h1:59OFYbFVLKQKq+mqrL6Rw5bR0c3ACQaawgXx0QYndlE=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 h1:Hs82Z41s6SdL1CELW+XaDYmOH4hkBN4/N9og/AsOv7E=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/coreos/go-systemd/v22 v22.0.0 h1:XJIw/+VlJ+87J+doOxznsAWIdmWuViOVhkQamW5YV28=
github.com/coreos/go-systemd/v22 v22.0.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+1atmu1JpKERPPk=
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github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
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github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
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github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
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github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
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github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
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github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
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github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200122134326-e047566fdf82 h1:ywK/j/KkyTHcdyYSZNXGjMwgmDSfjglYZ3vStQ/gSCU=
golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

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main.go Normal file
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@ -0,0 +1,72 @@
package main
import (
"context"
"github.com/prometheus/client_golang/prometheus/promhttp"
"log"
"net/http"
"os"
"github.com/alecthomas/kingpin"
"github.com/prometheus/client_golang/prometheus"
)
func main() {
var (
app = kingpin.New("postfix_exporter", "Prometheus metrics exporter for postfix")
listenAddress = app.Flag("web.listen-address", "Address to listen on for web interface and telemetry.").Default(":9154").String()
metricsPath = app.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").String()
postfixShowqPath = app.Flag("postfix.showq_path", "Path at which Postfix places its showq socket.").Default("/var/spool/postfix/public/showq").String()
postfixLogfilePath = app.Flag("postfix.logfile_path", "Path where Postfix writes log entries. This file will be truncated by this exporter.").Default("/var/log/postfix_exporter_input.log").String()
logUnsupportedLines = app.Flag("log.unsupported", "Log all unsupported lines.").Bool()
systemdEnable bool
systemdUnit, systemdSlice, systemdJournalPath string
)
systemdFlags(&systemdEnable, &systemdUnit, &systemdSlice, &systemdJournalPath, app)
kingpin.MustParse(app.Parse(os.Args[1:]))
var journal *Journal
if systemdEnable {
var err error
journal, err = NewJournal(systemdUnit, systemdSlice, systemdJournalPath)
if err != nil {
log.Fatalf("Error opening systemd journal: %s", err)
}
defer journal.Close()
log.Println("Reading log events from systemd")
} else {
log.Printf("Reading log events from %v", *postfixLogfilePath)
}
exporter, err := NewPostfixExporter(
*postfixShowqPath,
*postfixLogfilePath,
journal,
*logUnsupportedLines,
)
if err != nil {
log.Fatalf("Failed to create PostfixExporter: %s", err)
}
prometheus.MustRegister(exporter)
http.Handle(*metricsPath, promhttp.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
_, err = w.Write([]byte(`
<html>
<head><title>Postfix Exporter</title></head>
<body>
<h1>Postfix Exporter</h1>
<p><a href='` + *metricsPath + `'>Metrics</a></p>
</body>
</html>`))
if err != nil {
panic(err)
}
})
ctx, cancelFunc := context.WithCancel(context.Background())
defer cancelFunc()
go exporter.StartMetricCollection(ctx)
log.Print("Listening on ", *listenAddress)
log.Fatal(http.ListenAndServe(*listenAddress, nil))
}

260
postfix_exporter.go
View File

@ -19,12 +19,9 @@ import (
"context" "context"
"errors" "errors"
"fmt" "fmt"
"github.com/alecthomas/kingpin"
"io" "io"
"log" "log"
"net" "net"
"net/http"
"os"
"regexp" "regexp"
"strconv" "strconv"
"strings" "strings"
@ -32,7 +29,6 @@ import (
"github.com/hpcloud/tail" "github.com/hpcloud/tail"
"github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
) )
var ( var (
@ -138,6 +134,9 @@ func CollectTextualShowqFromReader(file io.Reader, ch chan<- prometheus.Metric)
for scanner.Scan() { for scanner.Scan() {
matches := messageLine.FindStringSubmatch(scanner.Text()) matches := messageLine.FindStringSubmatch(scanner.Text())
if matches != nil { if matches != nil {
continue
}
// Derive the name of the message queue. // Derive the name of the message queue.
queue := "other" queue := "other"
if matches[1] == "*" { if matches[1] == "*" {
@ -169,7 +168,6 @@ func CollectTextualShowqFromReader(file io.Reader, ch chan<- prometheus.Metric)
sizeHistogram.WithLabelValues(queue).Observe(size) sizeHistogram.WithLabelValues(queue).Observe(size)
ageHistogram.WithLabelValues(queue).Observe(now.Sub(date).Seconds()) ageHistogram.WithLabelValues(queue).Observe(now.Sub(date).Seconds())
} }
}
sizeHistogram.Collect(ch) sizeHistogram.Collect(ch)
ageHistogram.Collect(ch) ageHistogram.Collect(ch)
@ -260,16 +258,6 @@ func CollectBinaryShowqFromReader(file io.Reader, ch chan<- prometheus.Metric) e
return scanner.Err() return scanner.Err()
} }
// CollectShowqFromFile collects Postfix queue statistics from a file.
//func CollectShowqFromFile(path string, ch chan<- prometheus.Metric) error {
// fd, err := os.Open(path)
// if err != nil {
// return err
// }
// defer fd.Close()
// return CollectShowqFromReader(fd, ch)
//}
// CollectShowqFromSocket collects Postfix queue statistics from a socket. // CollectShowqFromSocket collects Postfix queue statistics from a socket.
func CollectShowqFromSocket(path string, ch chan<- prometheus.Metric) error { func CollectShowqFromSocket(path string, ch chan<- prometheus.Metric) error {
fd, err := net.Dial("unix", path) fd, err := net.Dial("unix", path)
@ -300,125 +288,61 @@ var (
// CollectFromLogline collects metrict from a Postfix log line. // CollectFromLogline collects metrict from a Postfix log line.
func (e *PostfixExporter) CollectFromLogLine(line string) { func (e *PostfixExporter) CollectFromLogLine(line string) {
// Strip off timestamp, hostname, etc. // Strip off timestamp, hostname, etc.
if logMatches := logLine.FindStringSubmatch(line); logMatches != nil { logMatches := logLine.FindStringSubmatch(line)
if logMatches == nil {
// Unknown log entry format.
e.addToUnsupportedLine(line, "")
return
}
process := logMatches[1] process := logMatches[1]
subprocess := logMatches[3]
remainder := logMatches[4] remainder := logMatches[4]
switch process { switch process {
case "postfix": case "postfix":
// Group patterns to check by Postfix service. // Group patterns to check by Postfix service.
if subprocess == "cleanup" { subprocess := logMatches[3]
switch subprocess {
case "cleanup":
if strings.Contains(remainder, ": message-id=<") { if strings.Contains(remainder, ": message-id=<") {
e.cleanupProcesses.Inc() e.cleanupProcesses.Inc()
} else if strings.Contains(remainder, ": reject: ") { } else if strings.Contains(remainder, ": reject: ") {
e.cleanupRejects.Inc() e.cleanupRejects.Inc()
} else if strings.Contains(remainder, "message not accepted") {
e.cleanupNotAccepted.Inc()
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, subprocess)
log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc() case "lmtp":
}
} else if subprocess == "lmtp" {
if lmtpMatches := lmtpPipeSMTPLine.FindStringSubmatch(remainder); lmtpMatches != nil { if lmtpMatches := lmtpPipeSMTPLine.FindStringSubmatch(remainder); lmtpMatches != nil {
pdelay, err := strconv.ParseFloat(lmtpMatches[2], 64) addToHistogramVec(e.lmtpDelays, lmtpMatches[2], "LMTP pdelay", "before_queue_manager")
if err != nil { addToHistogramVec(e.lmtpDelays, lmtpMatches[3], "LMTP adelay", "queue_manager")
log.Printf("Couldn't convert LMTP pdelay: %v", err) addToHistogramVec(e.lmtpDelays, lmtpMatches[4], "LMTP sdelay", "connection_setup")
} addToHistogramVec(e.lmtpDelays, lmtpMatches[5], "LMTP xdelay", "transmission")
e.lmtpDelays.WithLabelValues("before_queue_manager").Observe(pdelay)
adelay, err := strconv.ParseFloat(lmtpMatches[3], 64)
if err != nil {
log.Printf("Couldn't convert LMTP adelay: %v", err)
}
e.lmtpDelays.WithLabelValues("queue_manager").Observe(adelay)
sdelay, err := strconv.ParseFloat(lmtpMatches[4], 64)
if err != nil {
log.Printf("Couldn't convert LMTP adelay: %v", err)
}
e.lmtpDelays.WithLabelValues("connection_setup").Observe(sdelay)
xdelay, err := strconv.ParseFloat(lmtpMatches[5], 64)
if err != nil {
log.Printf("Couldn't convert LMTP xdelay: %v", err)
}
e.lmtpDelays.WithLabelValues("transmission").Observe(xdelay)
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, subprocess)
log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc() case "pipe":
}
} else if subprocess == "pipe" {
if pipeMatches := lmtpPipeSMTPLine.FindStringSubmatch(remainder); pipeMatches != nil { if pipeMatches := lmtpPipeSMTPLine.FindStringSubmatch(remainder); pipeMatches != nil {
pdelay, err := strconv.ParseFloat(pipeMatches[2], 64) addToHistogramVec(e.pipeDelays, pipeMatches[2], "PIPE pdelay", pipeMatches[1], "before_queue_manager")
if err != nil { addToHistogramVec(e.pipeDelays, pipeMatches[3], "PIPE adelay", pipeMatches[1], "queue_manager")
log.Printf("Couldn't convert PIPE pdelay: %v", err) addToHistogramVec(e.pipeDelays, pipeMatches[4], "PIPE sdelay", pipeMatches[1], "connection_setup")
} addToHistogramVec(e.pipeDelays, pipeMatches[5], "PIPE xdelay", pipeMatches[1], "transmission")
e.pipeDelays.WithLabelValues(pipeMatches[1], "before_queue_manager").Observe(pdelay)
adelay, err := strconv.ParseFloat(pipeMatches[3], 64)
if err != nil {
log.Printf("Couldn't convert PIPE adelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "queue_manager").Observe(adelay)
sdelay, err := strconv.ParseFloat(pipeMatches[4], 64)
if err != nil {
log.Printf("Couldn't convert PIPE sdelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "connection_setup").Observe(sdelay)
xdelay, err := strconv.ParseFloat(pipeMatches[5], 64)
if err != nil {
log.Printf("Couldn't convert PIPE xdelay: %v", err)
}
e.pipeDelays.WithLabelValues(pipeMatches[1], "transmission").Observe(xdelay)
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, subprocess)
log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc() case "qmgr":
}
} else if subprocess == "qmgr" {
if qmgrInsertMatches := qmgrInsertLine.FindStringSubmatch(remainder); qmgrInsertMatches != nil { if qmgrInsertMatches := qmgrInsertLine.FindStringSubmatch(remainder); qmgrInsertMatches != nil {
size, err := strconv.ParseFloat(qmgrInsertMatches[1], 64) addToHistogram(e.qmgrInsertsSize, qmgrInsertMatches[1], "QMGR size")
if err != nil { addToHistogram(e.qmgrInsertsNrcpt, qmgrInsertMatches[2], "QMGR nrcpt")
log.Printf("Couldn't convert QMGR size: %v", err)
}
e.qmgrInsertsSize.Observe(size)
nrcpt, err := strconv.ParseFloat(qmgrInsertMatches[2], 64)
if err != nil {
log.Printf("Couldn't convert QMGR nrcpt: %v", err)
}
e.qmgrInsertsNrcpt.Observe(nrcpt)
} else if strings.HasSuffix(remainder, ": removed") { } else if strings.HasSuffix(remainder, ": removed") {
e.qmgrRemoves.Inc() e.qmgrRemoves.Inc()
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, subprocess)
log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc() case "smtp":
}
} else if subprocess == "smtp" {
if smtpMatches := lmtpPipeSMTPLine.FindStringSubmatch(remainder); smtpMatches != nil { if smtpMatches := lmtpPipeSMTPLine.FindStringSubmatch(remainder); smtpMatches != nil {
pdelay, err := strconv.ParseFloat(smtpMatches[2], 64) addToHistogramVec(e.smtpDelays, smtpMatches[2], "before_queue_manager")
if err != nil { addToHistogramVec(e.smtpDelays, smtpMatches[3], "queue_manager")
log.Printf("Couldn't convert SMTP pdelay: %v", err) addToHistogramVec(e.smtpDelays, smtpMatches[4], "connection_setup")
} addToHistogramVec(e.smtpDelays, smtpMatches[5], "transmission")
e.smtpDelays.WithLabelValues("before_queue_manager").Observe(pdelay)
adelay, err := strconv.ParseFloat(smtpMatches[3], 64)
if err != nil {
log.Printf("Couldn't convert SMTP adelay: %v", err)
}
e.smtpDelays.WithLabelValues("queue_manager").Observe(adelay)
sdelay, err := strconv.ParseFloat(smtpMatches[4], 64)
if err != nil {
log.Printf("Couldn't convert SMTP sdelay: %v", err)
}
e.smtpDelays.WithLabelValues("connection_setup").Observe(sdelay)
xdelay, err := strconv.ParseFloat(smtpMatches[5], 64)
if err != nil {
log.Printf("Couldn't convert SMTP xdelay: %v", err)
}
e.smtpDelays.WithLabelValues("transmission").Observe(xdelay)
if smtpMatches := smtpStatusDeferredLine.FindStringSubmatch(remainder); smtpMatches != nil { if smtpMatches := smtpStatusDeferredLine.FindStringSubmatch(remainder); smtpMatches != nil {
e.smtpStatusDeferred.Inc() e.smtpStatusDeferred.Inc()
} }
@ -427,12 +351,9 @@ func (e *PostfixExporter) CollectFromLogLine(line string) {
} else if smtpMatches := smtpConnectionTimedOut.FindStringSubmatch(remainder); smtpMatches != nil { } else if smtpMatches := smtpConnectionTimedOut.FindStringSubmatch(remainder); smtpMatches != nil {
e.smtpConnectionTimedOut.Inc() e.smtpConnectionTimedOut.Inc()
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, subprocess)
log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc() case "smtpd":
}
} else if subprocess == "smtpd" {
if strings.HasPrefix(remainder, "connect from ") { if strings.HasPrefix(remainder, "connect from ") {
e.smtpdConnects.Inc() e.smtpdConnects.Inc()
} else if strings.HasPrefix(remainder, "disconnect from ") { } else if strings.HasPrefix(remainder, "disconnect from ") {
@ -443,7 +364,7 @@ func (e *PostfixExporter) CollectFromLogLine(line string) {
e.smtpdLostConnections.WithLabelValues(smtpdLostConnectionMatches[1]).Inc() e.smtpdLostConnections.WithLabelValues(smtpdLostConnectionMatches[1]).Inc()
} else if smtpdProcessesSASLMatches := smtpdProcessesSASLLine.FindStringSubmatch(remainder); smtpdProcessesSASLMatches != nil { } else if smtpdProcessesSASLMatches := smtpdProcessesSASLLine.FindStringSubmatch(remainder); smtpdProcessesSASLMatches != nil {
e.smtpdProcesses.WithLabelValues(smtpdProcessesSASLMatches[1]).Inc() e.smtpdProcesses.WithLabelValues(smtpdProcessesSASLMatches[1]).Inc()
} else if strings.Contains(remainder, ": client=") { } else if strings.Contains(logMatches[2], ": client=") {
e.smtpdProcesses.WithLabelValues("").Inc() e.smtpdProcesses.WithLabelValues("").Inc()
} else if smtpdRejectsMatches := smtpdRejectsLine.FindStringSubmatch(remainder); smtpdRejectsMatches != nil { } else if smtpdRejectsMatches := smtpdRejectsLine.FindStringSubmatch(remainder); smtpdRejectsMatches != nil {
e.smtpdRejects.WithLabelValues(smtpdRejectsMatches[1]).Inc() e.smtpdRejects.WithLabelValues(smtpdRejectsMatches[1]).Inc()
@ -452,40 +373,43 @@ func (e *PostfixExporter) CollectFromLogLine(line string) {
} else if smtpdTLSMatches := smtpdTLSLine.FindStringSubmatch(remainder); smtpdTLSMatches != nil { } else if smtpdTLSMatches := smtpdTLSLine.FindStringSubmatch(remainder); smtpdTLSMatches != nil {
e.smtpdTLSConnects.WithLabelValues(smtpdTLSMatches[1:]...).Inc() e.smtpdTLSConnects.WithLabelValues(smtpdTLSMatches[1:]...).Inc()
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, subprocess)
log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc() default:
} e.addToUnsupportedLine(line, subprocess)
} else {
// Unknown Postfix service.
if e.logUnsupportedLines {
log.Printf("Unsupported Line: %v", line)
}
e.unsupportedLogEntries.WithLabelValues(subprocess).Inc()
} }
case "opendkim": case "opendkim":
if opendkimMatches := opendkimSignatureAdded.FindStringSubmatch(remainder); opendkimMatches != nil { if opendkimMatches := opendkimSignatureAdded.FindStringSubmatch(remainder); opendkimMatches != nil {
e.opendkimSignatureAdded.WithLabelValues(opendkimMatches[1], opendkimMatches[2]).Inc() e.opendkimSignatureAdded.WithLabelValues(opendkimMatches[1], opendkimMatches[2]).Inc()
} else { } else {
if e.logUnsupportedLines { e.addToUnsupportedLine(line, process)
log.Printf("Unsupported Line: %v", line)
}
e.unsupportedLogEntries.WithLabelValues(process).Inc()
} }
default: default:
if e.logUnsupportedLines {
log.Printf("Unsupported Line: %v", line)
}
e.unsupportedLogEntries.WithLabelValues(process).Inc()
}
} else {
// Unknown log entry format. // Unknown log entry format.
e.addToUnsupportedLine(line, "")
}
}
func (e *PostfixExporter) addToUnsupportedLine(line string, subprocess string) {
if e.logUnsupportedLines { if e.logUnsupportedLines {
log.Printf("Unsupported Line: %v", line) log.Printf("Unsupported Line: %v", line)
} }
e.unsupportedLogEntries.WithLabelValues("").Inc() e.unsupportedLogEntries.WithLabelValues(subprocess).Inc()
} }
func addToHistogram(h prometheus.Histogram, value, fieldName string) {
float, err := strconv.ParseFloat(value, 64)
if err != nil {
log.Printf("Couldn't convert value '%s' for %v: %v", value, fieldName, err)
}
h.Observe(float)
}
func addToHistogramVec(h *prometheus.HistogramVec, value, fieldName string, labels ...string) {
float, err := strconv.ParseFloat(value, 64)
if err != nil {
log.Printf("Couldn't convert value '%s' for %v: %v", value, fieldName, err)
}
h.WithLabelValues(labels...).Observe(float)
} }
// CollectLogfileFromFile tails a Postfix log file and collects entries from it. // CollectLogfileFromFile tails a Postfix log file and collects entries from it.
@ -786,63 +710,3 @@ func (e *PostfixExporter) Collect(ch chan<- prometheus.Metric) {
ch <- e.smtpConnectionTimedOut ch <- e.smtpConnectionTimedOut
e.opendkimSignatureAdded.Collect(ch) e.opendkimSignatureAdded.Collect(ch)
} }
func main() {
var (
app = kingpin.New("postfix_exporter", "Prometheus metrics exporter for postfix")
listenAddress = app.Flag("web.listen-address", "Address to listen on for web interface and telemetry.").Default(":9154").String()
metricsPath = app.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").String()
postfixShowqPath = app.Flag("postfix.showq_path", "Path at which Postfix places its showq socket.").Default("/var/spool/postfix/public/showq").String()
postfixLogfilePath = app.Flag("postfix.logfile_path", "Path where Postfix writes log entries. This file will be truncated by this exporter.").Default("/var/log/postfix_exporter_input.log").String()
logUnsupportedLines = app.Flag("log.unsupported", "Log all unsupported lines.").Bool()
systemdEnable bool
systemdUnit, systemdSlice, systemdJournalPath string
)
systemdFlags(&systemdEnable, &systemdUnit, &systemdSlice, &systemdJournalPath, app)
kingpin.MustParse(app.Parse(os.Args[1:]))
var journal *Journal
if systemdEnable {
var err error
journal, err = NewJournal(systemdUnit, systemdSlice, systemdJournalPath)
if err != nil {
log.Fatalf("Error opening systemd journal: %s", err)
}
defer journal.Close()
log.Println("Reading log events from systemd")
} else {
log.Printf("Reading log events from %v", *postfixLogfilePath)
}
exporter, err := NewPostfixExporter(
*postfixShowqPath,
*postfixLogfilePath,
journal,
*logUnsupportedLines,
)
if err != nil {
log.Fatalf("Failed to create PostfixExporter: %s", err)
}
prometheus.MustRegister(exporter)
http.Handle(*metricsPath, promhttp.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
_, err = w.Write([]byte(`
<html>
<head><title>Postfix Exporter</title></head>
<body>
<h1>Postfix Exporter</h1>
<p><a href='` + *metricsPath + `'>Metrics</a></p>
</body>
</html>`))
if err != nil {
panic(err)
}
})
ctx, cancelFunc := context.WithCancel(context.Background())
defer cancelFunc()
go exporter.StartMetricCollection(ctx)
log.Print("Listening on ", *listenAddress)
log.Fatal(http.ListenAndServe(*listenAddress, nil))
}