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Allow /metrics on default port; reduce memory if not enabled

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This commit is contained in:
binwiederhier 2023-03-15 22:34:06 -04:00
parent bb3fe4f830
commit 358b344916
9 changed files with 184 additions and 125 deletions
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9
cmd/serve.go
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@ -40,7 +40,6 @@ var flagsServe = append(
altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-http", Aliases: []string{"listen_http", "l"}, EnvVars: []string{"NTFY_LISTEN_HTTP"}, Value: server.DefaultListenHTTP, Usage: "ip:port used as HTTP listen address"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-https", Aliases: []string{"listen_https", "L"}, EnvVars: []string{"NTFY_LISTEN_HTTPS"}, Usage: "ip:port used as HTTPS listen address"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-unix", Aliases: []string{"listen_unix", "U"}, EnvVars: []string{"NTFY_LISTEN_UNIX"}, Usage: "listen on unix socket path"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-metrics-http", Aliases: []string{"listen_metrics_http"}, EnvVars: []string{"NTFY_LISTEN_METRICS_HTTP"}, Usage: "ip:port used to expose the metrics endpoint"}),
altsrc.NewIntFlag(&cli.IntFlag{Name: "listen-unix-mode", Aliases: []string{"listen_unix_mode"}, EnvVars: []string{"NTFY_LISTEN_UNIX_MODE"}, DefaultText: "system default", Usage: "file permissions of unix socket, e.g. 0700"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "key-file", Aliases: []string{"key_file", "K"}, EnvVars: []string{"NTFY_KEY_FILE"}, Usage: "private key file, if listen-https is set"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "cert-file", Aliases: []string{"cert_file", "E"}, EnvVars: []string{"NTFY_CERT_FILE"}, Usage: "certificate file, if listen-https is set"}),
@ -87,6 +86,8 @@ var flagsServe = append(
altsrc.NewStringFlag(&cli.StringFlag{Name: "stripe-secret-key", Aliases: []string{"stripe_secret_key"}, EnvVars: []string{"NTFY_STRIPE_SECRET_KEY"}, Value: "", Usage: "key used for the Stripe API communication, this enables payments"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "stripe-webhook-key", Aliases: []string{"stripe_webhook_key"}, EnvVars: []string{"NTFY_STRIPE_WEBHOOK_KEY"}, Value: "", Usage: "key required to validate the authenticity of incoming webhooks from Stripe"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "billing-contact", Aliases: []string{"billing_contact"}, EnvVars: []string{"NTFY_BILLING_CONTACT"}, Value: "", Usage: "e-mail or website to display in upgrade dialog (only if payments are enabled)"}),
altsrc.NewBoolFlag(&cli.BoolFlag{Name: "enable-metrics", Aliases: []string{"enable_metrics"}, EnvVars: []string{"NTFY_ENABLE_METRICS"}, Value: false, Usage: "if set, Prometheus metrics are exposed via the /metrics endpoint"}),
altsrc.NewStringFlag(&cli.StringFlag{Name: "metrics-listen-http", Aliases: []string{"metrics_listen_http"}, EnvVars: []string{"NTFY_METRICS_LISTEN_HTTP"}, Usage: "ip:port used to expose the metrics endpoint (implicitly enables metrics)"}),
)
var cmdServe = &cli.Command{
@ -119,7 +120,6 @@ func execServe(c *cli.Context) error {
listenHTTPS := c.String("listen-https")
listenUnix := c.String("listen-unix")
listenUnixMode := c.Int("listen-unix-mode")
listenMetricsHTTP := c.String("listen-metrics-http")
keyFile := c.String("key-file")
certFile := c.String("cert-file")
firebaseKeyFile := c.String("firebase-key-file")
@ -165,6 +165,8 @@ func execServe(c *cli.Context) error {
stripeSecretKey := c.String("stripe-secret-key")
stripeWebhookKey := c.String("stripe-webhook-key")
billingContact := c.String("billing-contact")
metricsListenHTTP := c.String("metrics-listen-http")
enableMetrics := c.Bool("enable-metrics") || metricsListenHTTP != ""
// Check values
if firebaseKeyFile != "" && !util.FileExists(firebaseKeyFile) {
@ -271,7 +273,6 @@ func execServe(c *cli.Context) error {
conf.ListenHTTPS = listenHTTPS
conf.ListenUnix = listenUnix
conf.ListenUnixMode = fs.FileMode(listenUnixMode)
conf.ListenMetricsHTTP = listenMetricsHTTP
conf.KeyFile = keyFile
conf.CertFile = certFile
conf.FirebaseKeyFile = firebaseKeyFile
@ -318,6 +319,8 @@ func execServe(c *cli.Context) error {
conf.EnableSignup = enableSignup
conf.EnableLogin = enableLogin
conf.EnableReservations = enableReservations
conf.EnableMetrics = enableMetrics
conf.MetricsListenHTTP = metricsListenHTTP
conf.Version = c.App.Version
// Set up hot-reloading of config