From 703a7e12ee424718d680b5ab8424eb3643b57d4b Mon Sep 17 00:00:00 2001 From: kingecg Date: Sun, 10 Dec 2023 19:26:09 +0800 Subject: [PATCH] add daemon --- config.json | 5 +- go.mod | 1 + go.sum | 2 + gohttp.go | 20 +- main.go | 20 +- server/manager.go | 6 +- .../git.pyer.club/kingecg/godaemon/.gitignore | 23 +++ vendor/git.pyer.club/kingecg/godaemon/LICENSE | 9 + .../git.pyer.club/kingecg/godaemon/README.md | 2 + .../kingecg/godaemon/godaemon.go | 187 ++++++++++++++++++ vendor/modules.txt | 3 + 11 files changed, 263 insertions(+), 15 deletions(-) create mode 100644 vendor/git.pyer.club/kingecg/godaemon/.gitignore create mode 100644 vendor/git.pyer.club/kingecg/godaemon/LICENSE create mode 100644 vendor/git.pyer.club/kingecg/godaemon/README.md create mode 100644 vendor/git.pyer.club/kingecg/godaemon/godaemon.go diff --git a/config.json b/config.json index 1045150..ffc5b51 100644 --- a/config.json +++ b/config.json @@ -2,7 +2,10 @@ "logging" :{ "appenders": { "out" :{ - "type": "console" + "type": "file", + "options":{ + "file": "gohttpd.log" + } } }, "categories": { diff --git a/go.mod b/go.mod index 756f75d..eaf8bad 100644 --- a/go.mod +++ b/go.mod @@ -3,6 +3,7 @@ module git.pyer.club/kingecg/gohttpd go 1.19 require ( + git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511 // indirect git.pyer.club/kingecg/gologger v1.0.1 // indirect github.com/samber/lo v1.39.0 // indirect github.com/soheilhy/cmux v0.1.5 // indirect diff --git a/go.sum b/go.sum index 21c0b7c..13c986c 100644 --- a/go.sum +++ b/go.sum @@ -1,3 +1,5 @@ +git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511 h1:qgNgm8ewkZdK7S3gaMagPKi90wgHpuGjpQdBVz21tjE= +git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511/go.mod h1:6cL7tPbT1m6EaTvrbDg/YhoZG0Mms8WBD10yRGhng4o= git.pyer.club/kingecg/gologger v1.0.0 h1:H3oFIJ1p7mlAgJgJ/wiM+hxn34x7IxY4YiafY8iMfAk= git.pyer.club/kingecg/gologger v1.0.0/go.mod h1:SNSl2jRHPzIpHSzdKOoVG798rtYMjPDPFyxUrEgivkY= git.pyer.club/kingecg/gologger v1.0.1 h1:snCb0ePlfDUglX+CHwNzq5MRK5uNTnPUks1Dnapl/p8= diff --git a/gohttp.go b/gohttp.go index 2cabe15..7b0bac5 100644 --- a/gohttp.go +++ b/gohttp.go @@ -12,22 +12,24 @@ import ( "git.pyer.club/kingecg/gologger" ) +var conf model.GoHttpdConfig + type GoHttp struct { - conf model.GoHttpdConfig logger gologger.Logger } func (g *GoHttp) Start() { + g.logger = gologger.GetLogger("Server") g.logger.Info("start gohttpd") // if g.conf != nil { port := model.DefaultAdminConfig.Port - if g.conf.Admin != nil { - port = g.conf.Admin.Port + if conf.Admin != nil { + port = conf.Admin.Port } g.makeServer("admin", port, admin.AdminServerMux) - for _, server := range g.conf.Servers { + for _, server := range conf.Servers { sHandler := g.assembleServerMux(server.Paths) g.makeServer(server.ServerName, server.Port, sHandler) } @@ -68,7 +70,7 @@ func (g *GoHttp) assembleServerMux(p []model.HttpPath) http.Handler { func (g *GoHttp) Stop() {} -func (g *GoHttp) LoadConfig(configPath string) { +func LoadConfig(configPath string) { cpath := configPath if cpath == "" { cpath = GetExecDir() + "/config.json" @@ -76,8 +78,8 @@ func (g *GoHttp) LoadConfig(configPath string) { // read content from cpath content, _ := os.ReadFile(cpath) - json.Unmarshal(content, &g.conf) - gologger.Configure(g.conf.Logging) - g.logger = gologger.GetLogger("Server") - g.logger.Info("Load config success") + json.Unmarshal(content, &conf) + gologger.Configure(conf.Logging) + logger := gologger.GetLogger("Server") + logger.Info("Load config success") } diff --git a/main.go b/main.go index 4a9bbc2..e805037 100644 --- a/main.go +++ b/main.go @@ -4,16 +4,28 @@ import ( "os" "os/signal" "syscall" + + "git.pyer.club/kingecg/godaemon" ) func main() { - httpd := &GoHttp{} - httpd.LoadConfig("") - httpd.Start() + LoadConfig("") + daemon := godaemon.NewGoDaemon(start, stop) + daemon.Start() +} + +func start(g *godaemon.GoDaemon) { var waiter = make(chan os.Signal, 1) // buffered channel signal.Notify(waiter, syscall.SIGTERM, syscall.SIGINT) + httpd := &GoHttp{} + + httpd.Start() + // blocks here until there's a signal <-waiter - +} + +func stop(g *godaemon.GoDaemon) { + g.Running.Process.Signal(syscall.SIGTERM) } diff --git a/server/manager.go b/server/manager.go index 7df3f19..ceaf22e 100644 --- a/server/manager.go +++ b/server/manager.go @@ -10,6 +10,7 @@ import ( "bufio" "io" + "git.pyer.club/kingecg/gologger" logger "git.pyer.club/kingecg/gologger" "github.com/soheilhy/cmux" ) @@ -30,6 +31,7 @@ func makeMatcher(name string, s *ServerListener) cmux.Matcher { } type ServerListener struct { + port int listener cmux.CMux servers map[string]*http.Server } @@ -73,6 +75,8 @@ func (s *ServerListener) ShutDown() { } func (s *ServerListener) Serve() { + l := gologger.GetLogger("Listener") + l.Debug("listen on :", s.port) go s.listener.Serve() } @@ -85,7 +89,7 @@ func NewServerListener(port int) *ServerListener { l.Error("Listen error:", err) } muxer := cmux.New(l) - s := &ServerListener{listener: muxer, servers: make(map[string]*http.Server)} + s := &ServerListener{port: port, listener: muxer, servers: make(map[string]*http.Server)} return s } diff --git a/vendor/git.pyer.club/kingecg/godaemon/.gitignore b/vendor/git.pyer.club/kingecg/godaemon/.gitignore new file mode 100644 index 0000000..adf8f72 --- /dev/null +++ b/vendor/git.pyer.club/kingecg/godaemon/.gitignore @@ -0,0 +1,23 @@ +# ---> Go +# If you prefer the allow list template instead of the deny list, see community template: +# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore +# +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, built with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# Dependency directories (remove the comment below to include it) +# vendor/ + +# Go workspace file +go.work + diff --git a/vendor/git.pyer.club/kingecg/godaemon/LICENSE b/vendor/git.pyer.club/kingecg/godaemon/LICENSE new file mode 100644 index 0000000..92a7969 --- /dev/null +++ b/vendor/git.pyer.club/kingecg/godaemon/LICENSE @@ -0,0 +1,9 @@ +MIT License + +Copyright (c) 2023 kingecg + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/git.pyer.club/kingecg/godaemon/README.md b/vendor/git.pyer.club/kingecg/godaemon/README.md new file mode 100644 index 0000000..4feb83b --- /dev/null +++ b/vendor/git.pyer.club/kingecg/godaemon/README.md @@ -0,0 +1,2 @@ +# godaemon + diff --git a/vendor/git.pyer.club/kingecg/godaemon/godaemon.go b/vendor/git.pyer.club/kingecg/godaemon/godaemon.go new file mode 100644 index 0000000..93943bf --- /dev/null +++ b/vendor/git.pyer.club/kingecg/godaemon/godaemon.go @@ -0,0 +1,187 @@ +package godaemon + +import ( + "flag" + "fmt" + "os" + "os/exec" + "os/signal" + "path/filepath" + "strconv" + "strings" + "syscall" + + "git.pyer.club/kingecg/gologger" +) + +const ( + daemon_env_key = "_go_daemon" + daemon_process = "g_daemon" + daemon_task = "g_dtask" + daemon_taskargs = "g_args" +) + +type GoDaemon struct { + pidFile string + flag *string + sigChan chan os.Signal + state string + gologger.Logger + Running *exec.Cmd + + StartFn func(*GoDaemon) + StopFn func(*GoDaemon) +} + +func (g *GoDaemon) GetPid() int { + pids, ferr := os.ReadFile(g.pidFile) + pid, err := strconv.Atoi(string(pids)) + if err != nil || ferr != nil { + return 0 + } + return pid +} + +func (g *GoDaemon) Start() { + if g.flag == nil { + g.flag = flag.String("s", "", "send signal to daemon. support: reload and quit") + } + + if IsMaster() { + flag.Parse() + if *g.flag == "" { + g.startDaemon() + return + } + + var sig syscall.Signal + if *g.flag == "reload" { + sig = syscall.SIGHUP + } else if *g.flag == "quit" { + sig = syscall.SIGTERM + } else { + fmt.Println("Not supported signal") + return + } + + p := g.getDaemonProcess() + if p == nil { + fmt.Println("Daemon process not found") + return + } + g.Debug("Send signal:", p.Pid, sig) + p.Signal(sig) + } else if IsDaemon() { + pid := os.Getpid() + + os.WriteFile(g.pidFile, []byte(strconv.Itoa(pid)), 0644) + g.sigChan = make(chan os.Signal) + + signal.Notify(g.sigChan, syscall.SIGTERM, syscall.SIGHUP) + go g.serveSignal() + + for { + + g.Debug("Starting new task") + g.Running = g.startTask() + g.state = "running" + g.Running.Process.Wait() + if g.state == "stopped" { + g.Debug("daemon is stopped, exit now") + break + } + } + + } else { + + g.StartFn(g) + } +} + +func (g *GoDaemon) serveSignal() { + sig := <-g.sigChan + if sig == syscall.SIGTERM { + g.state = "stopped" + } else { + g.state = "restart" + } + + g.Debug("Stop it") + g.StopFn(g) +} + +func (g *GoDaemon) getDaemonProcess() *os.Process { + pid := g.GetPid() + if pid == 0 { + return nil + } + p, err := os.FindProcess(pid) + if err != nil { + g.Debug(err) + } + serr := p.Signal(syscall.Signal(0)) + if serr != nil { + return nil + } + return p +} + +func (g *GoDaemon) startDaemon() { + dp := g.getDaemonProcess() + + if dp != nil { + fmt.Println("daemon is running with pid:", dp.Pid) + return + } + + execName, _ := os.Executable() + cmd := exec.Command(execName) + cmd.Env = append(cmd.Env, daemon_env_key+"="+daemon_process) + pargs := os.Args[1:] + cmd.Env = append(cmd.Env, daemon_taskargs+"="+strings.Join(pargs, ";")) + cmd.Start() +} + +func (g *GoDaemon) startTask() *exec.Cmd { + extraArgs, _ := os.LookupEnv(daemon_taskargs) + var cmd *exec.Cmd + execName, _ := os.Executable() + if extraArgs != "" { + eargs := strings.Split(extraArgs, ";") + cmd = exec.Command(execName, eargs...) + } else { + cmd = exec.Command(execName) + } + cmd.Env = append(cmd.Env, daemon_env_key+"="+daemon_task) + cmd.Start() + return cmd +} +func IsMaster() bool { + goDaemonEnv, _ := os.LookupEnv(daemon_env_key) + return goDaemonEnv == "" +} + +func IsDaemon() bool { + goDaemonEnv, _ := os.LookupEnv(daemon_env_key) + return goDaemonEnv == daemon_process +} + +func IsDaemonTask() bool { + goDaemonEnv, _ := os.LookupEnv(daemon_env_key) + return goDaemonEnv == daemon_task +} + +func NewGoDaemon(start, stop func(*GoDaemon)) *GoDaemon { + godaemon := &GoDaemon{ + Logger: gologger.GetLogger("daemon"), + } + + execName, _ := os.Executable() + if filepath.Ext(execName) != "" { + execName = strings.TrimSuffix(execName, filepath.Ext(execName)) + } + godaemon.pidFile = execName + ".pid" + godaemon.StartFn = start + godaemon.StopFn = stop + return godaemon +} diff --git a/vendor/modules.txt b/vendor/modules.txt index 9d16269..d595472 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -1,3 +1,6 @@ +# git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511 +## explicit; go 1.19 +git.pyer.club/kingecg/godaemon # git.pyer.club/kingecg/gologger v1.0.1 ## explicit; go 1.19 git.pyer.club/kingecg/gologger