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package main
import (
"fmt"
"io"
"math/rand"
"os"
"time"
log "github.com/sirupsen/logrus"
"gitlab.com/gitlab-org/labkit/errortracking"
cfg "gitlab.com/gitlab-org/gitlab-pages/internal/config"
"gitlab.com/gitlab-org/gitlab-pages/internal/logging"
"gitlab.com/gitlab-org/gitlab-pages/internal/validateargs"
"gitlab.com/gitlab-org/gitlab-pages/metrics"
)
// VERSION stores the information about the semantic version of application
var VERSION = "dev"
// REVISION stores the information about the git revision of application
var REVISION = "HEAD"
func initErrorReporting(sentryDSN, sentryEnvironment string) {
errortracking.Initialize(
errortracking.WithSentryDSN(sentryDSN),
errortracking.WithVersion(fmt.Sprintf("%s-%s", VERSION, REVISION)),
errortracking.WithLoggerName("gitlab-pages"),
errortracking.WithSentryEnvironment(sentryEnvironment))
}
func appMain() {
if err := validateargs.NotAllowed(os.Args[1:]); err != nil {
log.WithError(err).Fatal("Using invalid arguments, use -config=gitlab-pages-config file instead")
}
if err := validateargs.Deprecated(os.Args[1:]); err != nil {
log.WithError(err).Warn("Using deprecated arguments")
}
config := cfg.LoadConfig()
printVersion(config.General.ShowVersion, VERSION)
if config.Sentry.DSN != "" {
initErrorReporting(config.Sentry.DSN, config.Sentry.Environment)
}
err := logging.ConfigureLogging(config.Log.Format, config.Log.Verbose)
if err != nil {
log.WithError(err).Fatal("Failed to initialize logging")
}
cfg.LogConfig(config)
log.WithFields(log.Fields{
"version": VERSION,
"revision": REVISION,
}).Print("GitLab Pages Daemon")
log.Printf("URL: https://gitlab.com/gitlab-org/gitlab-pages")
if err := os.Chdir(config.General.RootDir); err != nil {
fatal(err, "could not change directory into pagesRoot")
}
for _, cs := range [][]io.Closer{
createAppListeners(config),
createMetricsListener(config),
} {
defer closeAll(cs)
}
if config.Daemon.UID != 0 || config.Daemon.GID != 0 {
if err := daemonize(config); err != nil {
errortracking.Capture(err)
fatal(err, "could not create pages daemon")
}
return
}
runApp(config)
}
func closeAll(cs []io.Closer) {
for _, c := range cs {
c.Close()
}
}
// createAppListeners returns net.Listener and *os.File instances. The
// caller must ensure they don't get closed or garbage-collected (which
// implies closing) too soon.
func createAppListeners(config *cfg.Config) []io.Closer {
var closers []io.Closer
var httpListeners []uintptr
var httpsListeners []uintptr
var proxyListeners []uintptr
var httpsProxyv2Listeners []uintptr
for _, addr := range config.ListenHTTPStrings.Split() {
l, f := createSocket(addr)
closers = append(closers, l, f)
log.WithFields(log.Fields{
"listener": addr,
}).Debug("Set up HTTP listener")
httpListeners = append(httpListeners, f.Fd())
}
for _, addr := range config.ListenHTTPSStrings.Split() {
l, f := createSocket(addr)
closers = append(closers, l, f)
log.WithFields(log.Fields{
"listener": addr,
}).Debug("Set up HTTPS listener")
httpsListeners = append(httpsListeners, f.Fd())
}
for _, addr := range config.ListenProxyStrings.Split() {
l, f := createSocket(addr)
closers = append(closers, l, f)
log.WithFields(log.Fields{
"listener": addr,
}).Debug("Set up proxy listener")
proxyListeners = append(proxyListeners, f.Fd())
}
for _, addr := range config.ListenHTTPSProxyv2Strings.Split() {
l, f := createSocket(addr)
closers = append(closers, l, f)
log.WithFields(log.Fields{
"listener": addr,
}).Debug("Set up https proxyv2 listener")
httpsProxyv2Listeners = append(httpsProxyv2Listeners, f.Fd())
}
config.Listeners = &cfg.Listeners{
HTTP: httpListeners,
HTTPS: httpsListeners,
Proxy: proxyListeners,
HTTPSProxyv2: httpsProxyv2Listeners,
}
return closers
}
// createMetricsListener returns net.Listener and *os.File instances. The
// caller must ensure they don't get closed or garbage-collected (which
// implies closing) too soon.
func createMetricsListener(config *cfg.Config) []io.Closer {
addr := config.General.MetricsAddress
if addr == "" {
return nil
}
l, f := createSocket(addr)
config.ListenMetrics = f.Fd()
log.WithFields(log.Fields{
"listener": addr,
}).Debug("Set up metrics listener")
return []io.Closer{l, f}
}
func printVersion(showVersion bool, version string) {
if showVersion {
fmt.Fprintf(os.Stdout, "%s\n", version)
os.Exit(0)
}
}
func main() {
log.SetOutput(os.Stderr)
rand.Seed(time.Now().UnixNano())
metrics.MustRegister()
daemonMain()
appMain()
}
|
