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gitea/cmd/web.go
Lunny Xiao 623a539f23
Move pidfile creation from setting to web cmd package (#23285)
Creating pid file should not belong to setting package and only web
command needs that. So this PR moves pidfile creation from setting
package to web command package to keep setting package more readable.

I marked this as `break` because the PIDFile path moved. For those who
have used the pid build argument, it has to be changed.

---------

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
2023-03-16 15:22:54 +08:00

293 lines
8.8 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package cmd
import (
"context"
"fmt"
"net"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
_ "net/http/pprof" // Used for debugging if enabled and a web server is running
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/routers"
"code.gitea.io/gitea/routers/install"
"github.com/felixge/fgprof"
"github.com/urfave/cli"
ini "gopkg.in/ini.v1"
)
// PIDFile could be set from build tag
var PIDFile = "/run/gitea.pid"
// CmdWeb represents the available web sub-command.
var CmdWeb = cli.Command{
Name: "web",
Usage: "Start Gitea web server",
Description: `Gitea web server is the only thing you need to run,
and it takes care of all the other things for you`,
Action: runWeb,
Flags: []cli.Flag{
cli.StringFlag{
Name: "port, p",
Value: "3000",
Usage: "Temporary port number to prevent conflict",
},
cli.StringFlag{
Name: "install-port",
Value: "3000",
Usage: "Temporary port number to run the install page on to prevent conflict",
},
cli.StringFlag{
Name: "pid, P",
Value: PIDFile,
Usage: "Custom pid file path",
},
cli.BoolFlag{
Name: "quiet, q",
Usage: "Only display Fatal logging errors until logging is set-up",
},
cli.BoolFlag{
Name: "verbose",
Usage: "Set initial logging to TRACE level until logging is properly set-up",
},
},
}
func runHTTPRedirector() {
_, _, finished := process.GetManager().AddTypedContext(graceful.GetManager().HammerContext(), "Web: HTTP Redirector", process.SystemProcessType, true)
defer finished()
source := fmt.Sprintf("%s:%s", setting.HTTPAddr, setting.PortToRedirect)
dest := strings.TrimSuffix(setting.AppURL, "/")
log.Info("Redirecting: %s to %s", source, dest)
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
target := dest + r.URL.Path
if len(r.URL.RawQuery) > 0 {
target += "?" + r.URL.RawQuery
}
http.Redirect(w, r, target, http.StatusTemporaryRedirect)
})
err := runHTTP("tcp", source, "HTTP Redirector", handler, setting.RedirectorUseProxyProtocol)
if err != nil {
log.Fatal("Failed to start port redirection: %v", err)
}
}
func createPIDFile(pidPath string) {
currentPid := os.Getpid()
if err := os.MkdirAll(filepath.Dir(pidPath), os.ModePerm); err != nil {
log.Fatal("Failed to create PID folder: %v", err)
}
file, err := os.Create(pidPath)
if err != nil {
log.Fatal("Failed to create PID file: %v", err)
}
defer file.Close()
if _, err := file.WriteString(strconv.FormatInt(int64(currentPid), 10)); err != nil {
log.Fatal("Failed to write PID information: %v", err)
}
}
func runWeb(ctx *cli.Context) error {
if ctx.Bool("verbose") {
_ = log.DelLogger("console")
log.NewLogger(0, "console", "console", fmt.Sprintf(`{"level": "trace", "colorize": %t, "stacktraceLevel": "none"}`, log.CanColorStdout))
} else if ctx.Bool("quiet") {
_ = log.DelLogger("console")
log.NewLogger(0, "console", "console", fmt.Sprintf(`{"level": "fatal", "colorize": %t, "stacktraceLevel": "none"}`, log.CanColorStdout))
}
defer func() {
if panicked := recover(); panicked != nil {
log.Fatal("PANIC: %v\n%s", panicked, log.Stack(2))
}
}()
managerCtx, cancel := context.WithCancel(context.Background())
graceful.InitManager(managerCtx)
defer cancel()
if os.Getppid() > 1 && len(os.Getenv("LISTEN_FDS")) > 0 {
log.Info("Restarting Gitea on PID: %d from parent PID: %d", os.Getpid(), os.Getppid())
} else {
log.Info("Starting Gitea on PID: %d", os.Getpid())
}
// Set pid file setting
if ctx.IsSet("pid") {
createPIDFile(ctx.String("pid"))
}
// Perform pre-initialization
needsInstall := install.PreloadSettings(graceful.GetManager().HammerContext())
if needsInstall {
// Flag for port number in case first time run conflict
if ctx.IsSet("port") {
if err := setPort(ctx.String("port")); err != nil {
return err
}
}
if ctx.IsSet("install-port") {
if err := setPort(ctx.String("install-port")); err != nil {
return err
}
}
installCtx, cancel := context.WithCancel(graceful.GetManager().HammerContext())
c := install.Routes(installCtx)
err := listen(c, false)
cancel()
if err != nil {
log.Critical("Unable to open listener for installer. Is Gitea already running?")
graceful.GetManager().DoGracefulShutdown()
}
select {
case <-graceful.GetManager().IsShutdown():
<-graceful.GetManager().Done()
log.Info("PID: %d Gitea Web Finished", os.Getpid())
log.Close()
return err
default:
}
} else {
NoInstallListener()
}
if setting.EnablePprof {
go func() {
http.DefaultServeMux.Handle("/debug/fgprof", fgprof.Handler())
_, _, finished := process.GetManager().AddTypedContext(context.Background(), "Web: PProf Server", process.SystemProcessType, true)
// The pprof server is for debug purpose only, it shouldn't be exposed on public network. At the moment it's not worth to introduce a configurable option for it.
log.Info("Starting pprof server on localhost:6060")
log.Info("Stopped pprof server: %v", http.ListenAndServe("localhost:6060", nil))
finished()
}()
}
log.Info("Global init")
// Perform global initialization
setting.InitProviderFromExistingFile()
setting.LoadCommonSettings()
routers.GlobalInitInstalled(graceful.GetManager().HammerContext())
// We check that AppDataPath exists here (it should have been created during installation)
// We can't check it in `GlobalInitInstalled`, because some integration tests
// use cmd -> GlobalInitInstalled, but the AppDataPath doesn't exist during those tests.
if _, err := os.Stat(setting.AppDataPath); err != nil {
log.Fatal("Can not find APP_DATA_PATH '%s'", setting.AppDataPath)
}
// Override the provided port number within the configuration
if ctx.IsSet("port") {
if err := setPort(ctx.String("port")); err != nil {
return err
}
}
// Set up Chi routes
c := routers.NormalRoutes(graceful.GetManager().HammerContext())
err := listen(c, true)
<-graceful.GetManager().Done()
log.Info("PID: %d Gitea Web Finished", os.Getpid())
log.Close()
return err
}
func setPort(port string) error {
setting.AppURL = strings.Replace(setting.AppURL, setting.HTTPPort, port, 1)
setting.HTTPPort = port
switch setting.Protocol {
case setting.HTTPUnix:
case setting.FCGI:
case setting.FCGIUnix:
default:
defaultLocalURL := string(setting.Protocol) + "://"
if setting.HTTPAddr == "0.0.0.0" {
defaultLocalURL += "localhost"
} else {
defaultLocalURL += setting.HTTPAddr
}
defaultLocalURL += ":" + setting.HTTPPort + "/"
// Save LOCAL_ROOT_URL if port changed
setting.CreateOrAppendToCustomConf("server.LOCAL_ROOT_URL", func(cfg *ini.File) {
cfg.Section("server").Key("LOCAL_ROOT_URL").SetValue(defaultLocalURL)
})
}
return nil
}
func listen(m http.Handler, handleRedirector bool) error {
listenAddr := setting.HTTPAddr
if setting.Protocol != setting.HTTPUnix && setting.Protocol != setting.FCGIUnix {
listenAddr = net.JoinHostPort(listenAddr, setting.HTTPPort)
}
_, _, finished := process.GetManager().AddTypedContext(graceful.GetManager().HammerContext(), "Web: Gitea Server", process.SystemProcessType, true)
defer finished()
log.Info("Listen: %v://%s%s", setting.Protocol, listenAddr, setting.AppSubURL)
// This can be useful for users, many users do wrong to their config and get strange behaviors behind a reverse-proxy.
// A user may fix the configuration mistake when he sees this log.
// And this is also very helpful to maintainers to provide help to users to resolve their configuration problems.
log.Info("AppURL(ROOT_URL): %s", setting.AppURL)
if setting.LFS.StartServer {
log.Info("LFS server enabled")
}
var err error
switch setting.Protocol {
case setting.HTTP:
if handleRedirector {
NoHTTPRedirector()
}
err = runHTTP("tcp", listenAddr, "Web", m, setting.UseProxyProtocol)
case setting.HTTPS:
if setting.EnableAcme {
err = runACME(listenAddr, m)
break
}
if handleRedirector {
if setting.RedirectOtherPort {
go runHTTPRedirector()
} else {
NoHTTPRedirector()
}
}
err = runHTTPS("tcp", listenAddr, "Web", setting.CertFile, setting.KeyFile, m, setting.UseProxyProtocol, setting.ProxyProtocolTLSBridging)
case setting.FCGI:
if handleRedirector {
NoHTTPRedirector()
}
err = runFCGI("tcp", listenAddr, "FCGI Web", m, setting.UseProxyProtocol)
case setting.HTTPUnix:
if handleRedirector {
NoHTTPRedirector()
}
err = runHTTP("unix", listenAddr, "Web", m, setting.UseProxyProtocol)
case setting.FCGIUnix:
if handleRedirector {
NoHTTPRedirector()
}
err = runFCGI("unix", listenAddr, "Web", m, setting.UseProxyProtocol)
default:
log.Fatal("Invalid protocol: %s", setting.Protocol)
}
if err != nil {
log.Critical("Failed to start server: %v", err)
}
log.Info("HTTP Listener: %s Closed", listenAddr)
return err
}