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expose puppet file locations as commandline arguments #104

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37 changes: 26 additions & 11 deletions puppet-agent-exporter.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,13 @@ import (
"golang.org/x/term"
)

type config struct {
listenAddress string
telemetryPath string
puppetReportFile string
puppetConfigFile string
}

func setupLogger() func() {
var logger *zap.Logger
var err error
Expand Down Expand Up @@ -78,22 +85,24 @@ var rootTemplate = template.Must(template.New("/").Parse(`<html>
</html>
`))

func run(ctx context.Context, listenAddress, telemetryPath string) (ok bool) {
func run(ctx context.Context, cfg *config) (ok bool) {
lgr := zap.S()

prometheus.DefaultRegisterer.MustRegister(puppetconfig.Collector{
Logger: lgr,
Logger: lgr,
ConfigPath: cfg.puppetConfigFile,
})
prometheus.DefaultRegisterer.MustRegister(puppetreport.Collector{
Logger: lgr,
Logger: lgr,
ReportPath: cfg.puppetReportFile,
})

mux := http.NewServeMux()
mux.Handle(telemetryPath, promhttp.Handler())
mux.Handle(cfg.telemetryPath, promhttp.Handler())
mux.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) {
_ = rootTemplate.Execute(writer, telemetryPath)
_ = rootTemplate.Execute(writer, cfg.telemetryPath)
})
server := &http.Server{Addr: listenAddress, Handler: mux}
server := &http.Server{Addr: cfg.listenAddress, Handler: mux}

resultCh := make(chan bool)
go func() {
Expand Down Expand Up @@ -125,10 +134,16 @@ func run(ctx context.Context, listenAddress, telemetryPath string) (ok bool) {

func main() {
// Flag definitions copied from github.com/prometheus/node_exporter
var (
listenAddress = kingpin.Flag("web.listen-address", "Address on which to expose metrics and web interface.").Default(":9819").String()
telemetryPath = kingpin.Flag("web.telemetry-path", "Path under which to expose metrics.").Default("/metrics").String()
)
var cfg config

kingpin.Flag("web.listen-address", "Address on which to expose metrics and web interface.").
Default(":9819").StringVar(&cfg.listenAddress)
kingpin.Flag("web.telemetry-path", "Path under which to expose metrics.").
Default("/metrics").StringVar(&cfg.telemetryPath)
kingpin.Flag("puppet.report-file", "Path to the Puppet run report.").
Default("/opt/puppetlabs/puppet/cache/state/last_run_report.yaml").StringVar(&cfg.puppetReportFile)
kingpin.Flag("puppet.config-file", "Path to the Puppet configuration.").
Default("/etc/puppetlabs/puppet/puppet.conf").StringVar(&cfg.puppetConfigFile)
kingpin.HelpFlag.Short('h')
kingpin.Parse()

Expand All @@ -138,7 +153,7 @@ func main() {
ctx, onExit := setupInterruptContext()
defer onExit()

if ok := run(ctx, *listenAddress, *telemetryPath); !ok {
if ok := run(ctx, &cfg); !ok {
os.Exit(1)
}
}