Better config test (#177)
* Better config test Previously, when using the config test option `-test`, we quit fairly earlier in the process and would not catch a variety of additional parsing errors (such as lighthouse IP addresses, local_range, the new check to make sure static hosts are in the certificate's subnet, etc). * run config test as part of smoke test * don't need privileges for configtest Co-authored-by: Nathan Brown <nate@slack-corp.com>
This commit is contained in:
parent
b4f2f7ce4e
commit
7cdbb14a18
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@ -2,6 +2,10 @@
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set -e -x
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docker run --name lighthouse1 --rm nebula:smoke -config lighthouse1.yml -test
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docker run --name host2 --rm nebula:smoke -config host2.yml -test
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docker run --name host3 --rm nebula:smoke -config host3.yml -test
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docker run --name lighthouse1 --device /dev/net/tun:/dev/net/tun --cap-add NET_ADMIN --rm nebula:smoke -config lighthouse1.yml &
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sleep 1
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docker run --name host2 --device /dev/net/tun:/dev/net/tun --cap-add NET_ADMIN --rm nebula:smoke -config host2.yml &
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72
main.go
72
main.go
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@ -101,32 +101,35 @@ func Main(configPath string, configTest bool, buildVersion string) {
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// tun config, listeners, anything modifying the computer should be below
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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if configTest {
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os.Exit(0)
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}
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var tun *Tun
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if !configTest {
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config.CatchHUP()
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config.CatchHUP()
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// set up our tun dev
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tun, err := newTun(
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config.GetString("tun.dev", ""),
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tunCidr,
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config.GetInt("tun.mtu", DEFAULT_MTU),
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routes,
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unsafeRoutes,
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config.GetInt("tun.tx_queue", 500),
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)
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if err != nil {
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l.WithError(err).Fatal("Failed to get a tun/tap device")
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// set up our tun dev
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tun, err = newTun(
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config.GetString("tun.dev", ""),
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tunCidr,
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config.GetInt("tun.mtu", DEFAULT_MTU),
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routes,
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unsafeRoutes,
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config.GetInt("tun.tx_queue", 500),
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)
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if err != nil {
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l.WithError(err).Fatal("Failed to get a tun/tap device")
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}
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}
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// set up our UDP listener
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udpQueues := config.GetInt("listen.routines", 1)
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udpServer, err := NewListener(config.GetString("listen.host", "0.0.0.0"), config.GetInt("listen.port", 0), udpQueues > 1)
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if err != nil {
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l.WithError(err).Fatal("Failed to open udp listener")
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var udpServer *udpConn
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if !configTest {
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udpServer, err = NewListener(config.GetString("listen.host", "0.0.0.0"), config.GetInt("listen.port", 0), udpQueues > 1)
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if err != nil {
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l.WithError(err).Fatal("Failed to open udp listener")
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}
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udpServer.reloadConfig(config)
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}
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udpServer.reloadConfig(config)
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// Set up my internal host map
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var preferredRanges []*net.IPNet
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@ -178,14 +181,14 @@ func Main(configPath string, configTest bool, buildVersion string) {
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*/
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punchy := NewPunchyFromConfig(config)
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if punchy.Punch {
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if punchy.Punch && !configTest {
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l.Info("UDP hole punching enabled")
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go hostMap.Punchy(udpServer)
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}
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port := config.GetInt("listen.port", 0)
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// If port is dynamic, discover it
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if port == 0 {
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if port == 0 && !configTest {
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uPort, err := udpServer.LocalAddr()
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if err != nil {
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l.WithError(err).Fatal("Failed to get listening port")
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@ -306,21 +309,28 @@ func Main(configPath string, configTest bool, buildVersion string) {
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l.Fatalf("Unknown cipher: %v", ifConfig.Cipher)
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}
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ifce, err := NewInterface(ifConfig)
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if err != nil {
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l.WithError(err).Fatal("Failed to initialize interface")
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var ifce *Interface
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if !configTest {
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ifce, err = NewInterface(ifConfig)
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if err != nil {
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l.WithError(err).Fatal("Failed to initialize interface")
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}
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ifce.RegisterConfigChangeCallbacks(config)
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go handshakeManager.Run(ifce)
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go lightHouse.LhUpdateWorker(ifce)
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}
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ifce.RegisterConfigChangeCallbacks(config)
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go handshakeManager.Run(ifce)
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go lightHouse.LhUpdateWorker(ifce)
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err = startStats(config)
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err = startStats(config, configTest)
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if err != nil {
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l.WithError(err).Fatal("Failed to start stats emitter")
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}
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if configTest {
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os.Exit(0)
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}
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//TODO: check if we _should_ be emitting stats
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go ifce.emitStats(config.GetDuration("stats.interval", time.Second*10))
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26
stats.go
26
stats.go
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@ -14,7 +14,7 @@ import (
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"time"
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)
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func startStats(c *Config) error {
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func startStats(c *Config, configTest bool) error {
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mType := c.GetString("stats.type", "")
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if mType == "" || mType == "none" {
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return nil
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@ -27,9 +27,9 @@ func startStats(c *Config) error {
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switch mType {
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case "graphite":
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startGraphiteStats(interval, c)
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startGraphiteStats(interval, c, configTest)
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case "prometheus":
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startPrometheusStats(interval, c)
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startPrometheusStats(interval, c, configTest)
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default:
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return fmt.Errorf("stats.type was not understood: %s", mType)
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}
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@ -43,7 +43,7 @@ func startStats(c *Config) error {
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return nil
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}
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func startGraphiteStats(i time.Duration, c *Config) error {
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func startGraphiteStats(i time.Duration, c *Config, configTest bool) error {
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proto := c.GetString("stats.protocol", "tcp")
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host := c.GetString("stats.host", "")
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if host == "" {
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@ -57,11 +57,13 @@ func startGraphiteStats(i time.Duration, c *Config) error {
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}
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l.Infof("Starting graphite. Interval: %s, prefix: %s, addr: %s", i, prefix, addr)
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go graphite.Graphite(metrics.DefaultRegistry, i, prefix, addr)
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if !configTest {
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go graphite.Graphite(metrics.DefaultRegistry, i, prefix, addr)
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}
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return nil
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}
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func startPrometheusStats(i time.Duration, c *Config) error {
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func startPrometheusStats(i time.Duration, c *Config, configTest bool) error {
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namespace := c.GetString("stats.namespace", "")
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subsystem := c.GetString("stats.subsystem", "")
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@ -79,11 +81,13 @@ func startPrometheusStats(i time.Duration, c *Config) error {
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pClient := mp.NewPrometheusProvider(metrics.DefaultRegistry, namespace, subsystem, pr, i)
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go pClient.UpdatePrometheusMetrics()
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go func() {
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l.Infof("Prometheus stats listening on %s at %s", listen, path)
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http.Handle(path, promhttp.HandlerFor(pr, promhttp.HandlerOpts{ErrorLog: l}))
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log.Fatal(http.ListenAndServe(listen, nil))
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}()
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if !configTest {
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go func() {
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l.Infof("Prometheus stats listening on %s at %s", listen, path)
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http.Handle(path, promhttp.HandlerFor(pr, promhttp.HandlerOpts{ErrorLog: l}))
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log.Fatal(http.ListenAndServe(listen, nil))
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}()
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}
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return nil
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}
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