add daemon
This commit is contained in:
parent
49ccc86721
commit
703a7e12ee
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@ -2,7 +2,10 @@
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"logging" :{
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"appenders": {
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"out" :{
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"type": "console"
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"type": "file",
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"options":{
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"file": "gohttpd.log"
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}
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}
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},
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"categories": {
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1
go.mod
1
go.mod
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@ -3,6 +3,7 @@ module git.pyer.club/kingecg/gohttpd
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go 1.19
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require (
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git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511 // indirect
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git.pyer.club/kingecg/gologger v1.0.1 // indirect
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github.com/samber/lo v1.39.0 // indirect
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github.com/soheilhy/cmux v0.1.5 // indirect
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2
go.sum
2
go.sum
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@ -1,3 +1,5 @@
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git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511 h1:qgNgm8ewkZdK7S3gaMagPKi90wgHpuGjpQdBVz21tjE=
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git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511/go.mod h1:6cL7tPbT1m6EaTvrbDg/YhoZG0Mms8WBD10yRGhng4o=
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git.pyer.club/kingecg/gologger v1.0.0 h1:H3oFIJ1p7mlAgJgJ/wiM+hxn34x7IxY4YiafY8iMfAk=
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git.pyer.club/kingecg/gologger v1.0.0/go.mod h1:SNSl2jRHPzIpHSzdKOoVG798rtYMjPDPFyxUrEgivkY=
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git.pyer.club/kingecg/gologger v1.0.1 h1:snCb0ePlfDUglX+CHwNzq5MRK5uNTnPUks1Dnapl/p8=
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20
gohttp.go
20
gohttp.go
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@ -12,22 +12,24 @@ import (
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"git.pyer.club/kingecg/gologger"
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)
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var conf model.GoHttpdConfig
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type GoHttp struct {
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conf model.GoHttpdConfig
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logger gologger.Logger
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}
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func (g *GoHttp) Start() {
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g.logger = gologger.GetLogger("Server")
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g.logger.Info("start gohttpd")
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// if g.conf != nil {
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port := model.DefaultAdminConfig.Port
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if g.conf.Admin != nil {
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port = g.conf.Admin.Port
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if conf.Admin != nil {
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port = conf.Admin.Port
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}
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g.makeServer("admin", port, admin.AdminServerMux)
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for _, server := range g.conf.Servers {
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for _, server := range conf.Servers {
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sHandler := g.assembleServerMux(server.Paths)
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g.makeServer(server.ServerName, server.Port, sHandler)
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}
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@ -68,7 +70,7 @@ func (g *GoHttp) assembleServerMux(p []model.HttpPath) http.Handler {
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func (g *GoHttp) Stop() {}
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func (g *GoHttp) LoadConfig(configPath string) {
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func LoadConfig(configPath string) {
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cpath := configPath
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if cpath == "" {
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cpath = GetExecDir() + "/config.json"
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@ -76,8 +78,8 @@ func (g *GoHttp) LoadConfig(configPath string) {
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// read content from cpath
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content, _ := os.ReadFile(cpath)
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json.Unmarshal(content, &g.conf)
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gologger.Configure(g.conf.Logging)
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g.logger = gologger.GetLogger("Server")
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g.logger.Info("Load config success")
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json.Unmarshal(content, &conf)
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gologger.Configure(conf.Logging)
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logger := gologger.GetLogger("Server")
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logger.Info("Load config success")
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}
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20
main.go
20
main.go
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@ -4,16 +4,28 @@ import (
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"os"
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"os/signal"
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"syscall"
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"git.pyer.club/kingecg/godaemon"
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)
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func main() {
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httpd := &GoHttp{}
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httpd.LoadConfig("")
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httpd.Start()
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LoadConfig("")
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daemon := godaemon.NewGoDaemon(start, stop)
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daemon.Start()
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}
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func start(g *godaemon.GoDaemon) {
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var waiter = make(chan os.Signal, 1) // buffered channel
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signal.Notify(waiter, syscall.SIGTERM, syscall.SIGINT)
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httpd := &GoHttp{}
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httpd.Start()
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// blocks here until there's a signal
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<-waiter
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}
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func stop(g *godaemon.GoDaemon) {
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g.Running.Process.Signal(syscall.SIGTERM)
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}
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@ -10,6 +10,7 @@ import (
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"bufio"
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"io"
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"git.pyer.club/kingecg/gologger"
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logger "git.pyer.club/kingecg/gologger"
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"github.com/soheilhy/cmux"
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)
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@ -30,6 +31,7 @@ func makeMatcher(name string, s *ServerListener) cmux.Matcher {
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}
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type ServerListener struct {
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port int
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listener cmux.CMux
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servers map[string]*http.Server
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}
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@ -73,6 +75,8 @@ func (s *ServerListener) ShutDown() {
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}
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func (s *ServerListener) Serve() {
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l := gologger.GetLogger("Listener")
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l.Debug("listen on :", s.port)
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go s.listener.Serve()
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}
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@ -85,7 +89,7 @@ func NewServerListener(port int) *ServerListener {
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l.Error("Listen error:", err)
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}
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muxer := cmux.New(l)
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s := &ServerListener{listener: muxer, servers: make(map[string]*http.Server)}
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s := &ServerListener{port: port, listener: muxer, servers: make(map[string]*http.Server)}
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return s
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}
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@ -0,0 +1,23 @@
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# ---> Go
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# If you prefer the allow list template instead of the deny list, see community template:
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# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
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#
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# Binaries for programs and plugins
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*.exe
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*.exe~
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*.dll
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*.so
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*.dylib
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# Test binary, built with `go test -c`
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*.test
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# Output of the go coverage tool, specifically when used with LiteIDE
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*.out
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# Dependency directories (remove the comment below to include it)
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# vendor/
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# Go workspace file
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go.work
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@ -0,0 +1,9 @@
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MIT License
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Copyright (c) 2023 kingecg
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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:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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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.
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@ -0,0 +1,2 @@
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# godaemon
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@ -0,0 +1,187 @@
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package godaemon
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import (
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"flag"
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"fmt"
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"os"
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"os/exec"
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"os/signal"
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"path/filepath"
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"strconv"
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"strings"
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"syscall"
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"git.pyer.club/kingecg/gologger"
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)
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const (
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daemon_env_key = "_go_daemon"
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daemon_process = "g_daemon"
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daemon_task = "g_dtask"
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daemon_taskargs = "g_args"
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)
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type GoDaemon struct {
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pidFile string
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flag *string
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sigChan chan os.Signal
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state string
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gologger.Logger
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Running *exec.Cmd
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StartFn func(*GoDaemon)
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StopFn func(*GoDaemon)
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}
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func (g *GoDaemon) GetPid() int {
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pids, ferr := os.ReadFile(g.pidFile)
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pid, err := strconv.Atoi(string(pids))
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if err != nil || ferr != nil {
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return 0
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}
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return pid
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}
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func (g *GoDaemon) Start() {
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if g.flag == nil {
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g.flag = flag.String("s", "", "send signal to daemon. support: reload and quit")
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}
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if IsMaster() {
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flag.Parse()
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if *g.flag == "" {
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g.startDaemon()
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return
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}
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var sig syscall.Signal
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if *g.flag == "reload" {
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sig = syscall.SIGHUP
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} else if *g.flag == "quit" {
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sig = syscall.SIGTERM
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} else {
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fmt.Println("Not supported signal")
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return
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}
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p := g.getDaemonProcess()
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if p == nil {
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fmt.Println("Daemon process not found")
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return
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}
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g.Debug("Send signal:", p.Pid, sig)
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p.Signal(sig)
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} else if IsDaemon() {
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pid := os.Getpid()
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os.WriteFile(g.pidFile, []byte(strconv.Itoa(pid)), 0644)
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g.sigChan = make(chan os.Signal)
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signal.Notify(g.sigChan, syscall.SIGTERM, syscall.SIGHUP)
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go g.serveSignal()
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for {
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g.Debug("Starting new task")
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g.Running = g.startTask()
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g.state = "running"
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g.Running.Process.Wait()
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if g.state == "stopped" {
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g.Debug("daemon is stopped, exit now")
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break
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}
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}
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} else {
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g.StartFn(g)
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}
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}
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func (g *GoDaemon) serveSignal() {
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sig := <-g.sigChan
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if sig == syscall.SIGTERM {
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g.state = "stopped"
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} else {
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g.state = "restart"
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}
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g.Debug("Stop it")
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g.StopFn(g)
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}
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func (g *GoDaemon) getDaemonProcess() *os.Process {
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pid := g.GetPid()
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if pid == 0 {
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return nil
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}
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p, err := os.FindProcess(pid)
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if err != nil {
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g.Debug(err)
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}
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serr := p.Signal(syscall.Signal(0))
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if serr != nil {
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return nil
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}
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return p
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}
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func (g *GoDaemon) startDaemon() {
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dp := g.getDaemonProcess()
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if dp != nil {
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fmt.Println("daemon is running with pid:", dp.Pid)
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return
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}
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execName, _ := os.Executable()
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cmd := exec.Command(execName)
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cmd.Env = append(cmd.Env, daemon_env_key+"="+daemon_process)
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pargs := os.Args[1:]
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cmd.Env = append(cmd.Env, daemon_taskargs+"="+strings.Join(pargs, ";"))
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cmd.Start()
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}
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func (g *GoDaemon) startTask() *exec.Cmd {
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extraArgs, _ := os.LookupEnv(daemon_taskargs)
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var cmd *exec.Cmd
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execName, _ := os.Executable()
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if extraArgs != "" {
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eargs := strings.Split(extraArgs, ";")
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cmd = exec.Command(execName, eargs...)
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} else {
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cmd = exec.Command(execName)
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}
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cmd.Env = append(cmd.Env, daemon_env_key+"="+daemon_task)
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cmd.Start()
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return cmd
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}
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func IsMaster() bool {
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goDaemonEnv, _ := os.LookupEnv(daemon_env_key)
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return goDaemonEnv == ""
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}
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func IsDaemon() bool {
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goDaemonEnv, _ := os.LookupEnv(daemon_env_key)
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return goDaemonEnv == daemon_process
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}
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func IsDaemonTask() bool {
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goDaemonEnv, _ := os.LookupEnv(daemon_env_key)
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return goDaemonEnv == daemon_task
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}
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func NewGoDaemon(start, stop func(*GoDaemon)) *GoDaemon {
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godaemon := &GoDaemon{
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Logger: gologger.GetLogger("daemon"),
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}
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execName, _ := os.Executable()
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if filepath.Ext(execName) != "" {
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execName = strings.TrimSuffix(execName, filepath.Ext(execName))
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}
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godaemon.pidFile = execName + ".pid"
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godaemon.StartFn = start
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godaemon.StopFn = stop
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return godaemon
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}
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@ -1,3 +1,6 @@
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# git.pyer.club/kingecg/godaemon v0.0.0-20231210104221-3a72649c6511
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## explicit; go 1.19
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git.pyer.club/kingecg/godaemon
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# git.pyer.club/kingecg/gologger v1.0.1
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## explicit; go 1.19
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git.pyer.club/kingecg/gologger
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