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2 Commits
0a3d0c0191
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4ceb2023db
Author | SHA1 | Date | |
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4ceb2023db | |||
d4f74661d5 |
32
main.go
32
main.go
@ -28,7 +28,7 @@ type CertificateMetrics struct {
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IsValid prometheus.Gauge
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}
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func NewCertificateMetrics(domain string, port int, alpn []string) CertificateMetrics {
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func NewCertificateMetrics(domain string, port int, alpn []string, name string) CertificateMetrics {
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metrics := CertificateMetrics{
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Domain: domain,
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Port: port,
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@ -36,13 +36,13 @@ func NewCertificateMetrics(domain string, port int, alpn []string) CertificateMe
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ExpiryIn: prometheus.NewGauge(
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prometheus.GaugeOpts{
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Name: "cert_status_expiry_in",
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ConstLabels: prometheus.Labels{"domain": domain},
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ConstLabels: prometheus.Labels{"name": name},
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},
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),
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IsValid: prometheus.NewGauge(
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prometheus.GaugeOpts{
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Name: "cert_status_is_valid",
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ConstLabels: prometheus.Labels{"domain": domain},
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ConstLabels: prometheus.Labels{"name": name},
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},
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),
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}
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@ -88,8 +88,9 @@ func (c *CertificateMetrics) checkTls() {
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}
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}
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func updateMetrics(metrics *[]CertificateMetrics) {
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func updateMetrics(metrics *[]CertificateMetrics, lastUpdated prometheus.Gauge) {
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log.Debugf("Updating metrics for %d domains...", len(*metrics))
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lastUpdated.SetToCurrentTime()
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for _, metric := range *metrics {
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metric.checkTls()
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}
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@ -108,15 +109,29 @@ func run(ctx *cli.Context) error {
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// Setup metrics
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registry := prometheus.NewRegistry()
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lastUpdatedMetric := prometheus.NewGauge(
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prometheus.GaugeOpts{
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Name: "certs_status_last_updated",
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},
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)
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registry.MustRegister(lastUpdatedMetric)
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metrics := make([]CertificateMetrics, 0)
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for _, d := range domains {
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log.Debugf("Parsing '%s'...", d)
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parts := strings.Split(d, ":")
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if len(parts) != 3 {
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if len(parts) < 3 {
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log.Errorf("Invalid domain format for '%s'", d)
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return errors.New("Invalid domain format: Expects <domain>:<port>:<alpn>")
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}
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name := ""
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if len(parts) == 4 {
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name = parts[3]
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} else {
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name = parts[0]
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}
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port, err := strconv.Atoi(parts[1])
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if err != nil {
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log.Errorf("Failed to parse port of '%s'", d)
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@ -126,11 +141,12 @@ func run(ctx *cli.Context) error {
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// Create the metric, and register it
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// TODO: Make this prettier
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alpn := strings.Split(parts[2], ";")
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log.Debugf("Using ALPNs: %v", alpn)
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log.Debugf("Registering: domain='%s' port='%d' alpn=%v name='%s'", parts[0], port, alpn, name)
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metric := NewCertificateMetrics(
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parts[0],
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port,
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alpn,
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name,
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)
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metric.register(registry)
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metrics = append(metrics, metric)
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@ -147,7 +163,7 @@ func run(ctx *cli.Context) error {
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gocron.DurationJob(24*time.Hour),
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gocron.NewTask(
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func() {
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updateMetrics(&metrics)
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updateMetrics(&metrics, lastUpdatedMetric)
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},
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),
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)
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@ -158,7 +174,7 @@ func run(ctx *cli.Context) error {
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// Perform an initial run to populate the metrics
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log.Info("Performing initial requests...")
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updateMetrics(&metrics)
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updateMetrics(&metrics, lastUpdatedMetric)
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log.Debug("Done")
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http.Handle(
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