Merge pull request 'release/v1.0.0' (#1) from release/v1.0.0 into master

Reviewed-on: #1

.gitignore

@@ -15,3 +15,5 @@
 # Dependency directories (remove the comment below to include it)
 # vendor/
 
+config.yml
+deploy

Makefile

@@ -0,0 +1,10 @@
+.PHONY: clean build
+
+BIN_NAME := deploy
+
+build:
+	go build -buildmode=pie -ldflags '-w -s' -o $(BIN_NAME) ./cmd/svc/main.go
+
+clean:
+	rm $(BIN_NAME)
+	go clean

README.md

@@ -1,2 +1,20 @@
 # auto-deploy-service
 
+## Config struct
+
+```yaml
+server:
+  port: 10230 # server listen port
+listens:
+  - http:
+      method: get # http method only support get and post
+      path: /test # http register path
+      headers: # header check map[string]string 
+        x-validate-key: '123'
+      script: /tmp/run.sh # script location required execute permission
+  - http:
+      method: post
+      path: /test-post
+      headers: {}
+      script: /tmp/run.sh
+```

cmd/svc/main.go

@@ -0,0 +1,148 @@
+package main
+
+import (
+	"context"
+	"deploy/pkg/config"
+	"deploy/pkg/logger"
+	"deploy/pkg/server"
+	"deploy/pkg/tools"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	"gopkg.in/fsnotify.v1"
+)
+
+var cfgPath string = "./config.yml"
+
+func main() {
+
+	flag.StringVar(&cfgPath, "c", "./config.yml", "config yaml path")
+	flag.Parse()
+
+	if !tools.CheckExists(cfgPath, false) {
+		log.Fatal(fmt.Errorf("config file not exists"))
+	}
+
+	// lock for service running
+	// buffer count 5
+	reloadChan := make(chan struct{}, 5)
+	// lock for main lock
+	lock := make(chan os.Signal, 1)
+	signal.Notify(lock, syscall.SIGTERM, syscall.SIGINT, syscall.SIGKILL)
+
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer watcher.Close()
+
+	go func() {
+		for {
+			select {
+			case event, ok := <-watcher.Events:
+				if !ok {
+					// channel closed
+					return
+				}
+				if event.Op&fsnotify.Write == fsnotify.Write {
+					// send reload channel
+					reloadChan <- struct{}{}
+				}
+			case err, ok := <-watcher.Errors:
+				if !ok {
+					// channel closed
+					return
+				}
+				log.Fatal(err)
+			}
+		}
+	}()
+
+	if err := watcher.Add(cfgPath); err != nil {
+		log.Fatal(err)
+	}
+
+	go runService(reloadChan)
+
+	<-lock
+
+	close(reloadChan)
+}
+
+func runService(reload <-chan struct{}) {
+	lastReload := time.Now()
+
+	log := logger.NewLogger(nil)
+
+	var svc *http.Server
+
+	// infinity loop
+	for {
+		if svc == nil {
+			svc = startServer(log)
+		}
+
+		select {
+		case _, ok := <-reload:
+			if !ok {
+				// channel closed exit program
+				if err := stopServer(svc); err != nil {
+					log.Fatal(err)
+					return
+				}
+			}
+			if time.Since(lastReload).Seconds() < float64(2*time.Second) {
+				break
+			}
+
+			lastReload = time.Now()
+			if err := stopServer(svc); err != nil {
+				log.Fatal(err)
+			}
+		}
+	}
+}
+
+func startServer(log *logrus.Logger) *http.Server {
+	cfg, err := config.Load(cfgPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	engine := server.NewServer(log)
+	// set routes
+	if err := engine.SetRoutes(cfg.Listens); err != nil {
+		log.Fatal(err)
+	}
+
+	svc := &http.Server{
+		Addr:    fmt.Sprintf(":%d", cfg.Server.Port),
+		Handler: engine.Engine,
+	}
+
+	go func() {
+		if err := svc.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			log.Fatal(err)
+		}
+	}()
+
+	return svc
+}
+
+func stopServer(svc *http.Server) error {
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*1)
+	defer cancel()
+
+	if err := svc.Shutdown(ctx); err != nil {
+		return err
+	}
+
+	return nil
+}

config.yml.sample

@@ -0,0 +1,9 @@
+server:
+  port: 10230
+
+listens:
+  - http:
+      method: get
+      path: /t
+      headers: {}
+      script: /tmp/run.sh

contrib/systemd/deploy.serice

@@ -0,0 +1,11 @@
+[Unit]
+Description=Auto Deploy Service
+
+[Service]
+Type=sample
+WorkingDirectory=/etc/auto-deploy-service
+ExecStart=/usr/local/bin/deploy
+Restart=always
+
+[Install]
+WantedBy=multi-user.target

go.mod

@@ -0,0 +1,33 @@
+module deploy
+
+go 1.17
+
+require (
+	github.com/gin-gonic/gin v1.7.2
+	github.com/otakukaze/config-loader v1.0.2
+	github.com/pkg/errors v0.9.1
+	github.com/sirupsen/logrus v1.8.1
+	gopkg.in/fsnotify.v1 v1.4.7
+)
+
+require (
+	github.com/BurntSushi/toml v0.3.1 // indirect
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.13.0 // indirect
+	github.com/go-playground/universal-translator v0.17.0 // indirect
+	github.com/go-playground/validator/v10 v10.6.1 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/json-iterator/go v1.1.11 // indirect
+	github.com/leodido/go-urn v1.2.1 // indirect
+	github.com/mattn/go-isatty v0.0.13 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/otakukaze/envconfig v1.0.4 // indirect
+	github.com/ugorji/go/codec v1.2.6 // indirect
+	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a // indirect
+	golang.org/x/sys v0.0.0-20210611083646-a4fc73990273 // indirect
+	golang.org/x/text v0.3.6 // indirect
+	google.golang.org/protobuf v1.26.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)

go.sum

@@ -0,0 +1,100 @@
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+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

pkg/config/config.go

@@ -0,0 +1,92 @@
+package config
+
+import (
+	"deploy/pkg/set"
+	"deploy/pkg/tools"
+	"fmt"
+	"strings"
+
+	errors "github.com/pkg/errors"
+
+	confLoader "github.com/otakukaze/config-loader"
+)
+
+type Config struct {
+	Server  Server   `yaml:"server"`
+	Listens []Listen `yaml:"listens"`
+}
+
+type Server struct {
+	Port int `yaml:"port" env:"SERVER_PORT" default:"10230"`
+}
+
+type Listen struct {
+	HTTP *HTTPListen `yaml:"http"`
+}
+
+type HTTPListen struct {
+	Method  string            `yaml:"method"`
+	Path    string            `yaml:"path"`
+	Headers map[string]string `yaml:"headers"`
+	Script  string            `yaml:"script"`
+}
+
+func Load(p ...string) (*Config, error) {
+
+	cfg := &Config{}
+
+	opts := &confLoader.LoadOptions{
+		FromEnv: true,
+	}
+
+	// check path exists
+	if len(p) > 0 && p[0] != "" {
+		if !tools.CheckExists(p[0], false) {
+			return nil, errors.New("config not exist")
+		}
+
+		opts.ConfigFile = &confLoader.ConfigFile{
+			Type: confLoader.ConfigFileTypeYAML,
+			Path: tools.ParsePath(p[0]),
+		}
+	}
+
+	if err := confLoader.Load(&cfg, opts); err != nil {
+		return nil, err
+	}
+
+	// check all listen path and script
+	pathSet := set.NewSet()
+
+	for _, v := range cfg.Listens {
+		if v.HTTP == nil {
+			continue
+		}
+
+		key := fmt.Sprintf("%s-%s", v.HTTP.Method, v.HTTP.Path)
+
+		if pathSet.Has(key) {
+			return nil, errors.WithStack(fmt.Errorf("path is duplicate: %s\n", v.HTTP.Path))
+		}
+
+		v.HTTP.Method = strings.ToUpper(v.HTTP.Method)
+
+		// check method support
+		switch v.HTTP.Method {
+		case "GET":
+		case "POST":
+			break
+		default:
+			return nil, errors.WithStack(fmt.Errorf("http method (%s) not support", v.HTTP.Method))
+		}
+
+		pathSet.Add(key)
+
+		// check script exists
+		if !tools.CheckExists(v.HTTP.Script, false) {
+			return nil, errors.WithStack(fmt.Errorf("path (%s) script not exists: %s\n", v.HTTP.Path, v.HTTP.Script))
+		}
+	}
+
+	return cfg, nil
+}

pkg/logger/logger.go

@@ -0,0 +1,24 @@
+package logger
+
+import (
+	"io"
+	"os"
+
+	"github.com/sirupsen/logrus"
+)
+
+func NewLogger(output io.Writer) *logrus.Logger {
+	l := logrus.New()
+
+	l.SetFormatter(&logrus.TextFormatter{})
+
+	l.SetLevel(logrus.DebugLevel)
+
+	if output != nil {
+		l.SetOutput(output)
+	} else {
+		l.SetOutput(os.Stdout)
+	}
+
+	return l
+}

pkg/server/server.go

@@ -0,0 +1,97 @@
+package server
+
+import (
+	"bufio"
+	"deploy/pkg/config"
+	"os/exec"
+
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+)
+
+type HTTPServer struct {
+	Engine *gin.Engine
+	Logger *logrus.Logger
+}
+
+func NewServer(logger *logrus.Logger) *HTTPServer {
+	e := gin.Default()
+
+	s := &HTTPServer{
+		Engine: e,
+		Logger: logger,
+	}
+
+	return s
+}
+
+func (s *HTTPServer) setHandler(check map[string]string, script string) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if len(check) > 0 {
+			for k, v := range check {
+				if c.GetHeader(k) != v {
+					s.Logger.WithFields(logrus.Fields{
+						"method": c.Request.Method,
+						"path":   c.Request.URL.Path,
+						"header": k,
+					}).Warnf("header value not match\n")
+
+					c.AbortWithStatus(403)
+					return
+				}
+			}
+		}
+
+		// ctx := c.Copy()
+		go func() {
+			cmd := exec.Command(script)
+
+			// r, w := io.Pipe()
+			nlog := s.Logger.WithFields(logrus.Fields{"script": script})
+			reader, err := cmd.StdoutPipe()
+			if err != nil {
+				nlog.Warnf("setup pipe out fail: %+v\n", err)
+			}
+
+			if err := cmd.Start(); err != nil {
+				nlog.Warnf("start script fail: %+v\n", err)
+			}
+
+			in := bufio.NewScanner(reader)
+			for in.Scan() {
+				nlog.Debugf(in.Text())
+			}
+			if err := in.Err(); err != nil {
+				nlog.Warnf("script error: %+v\n", err)
+			}
+
+		}()
+
+		c.String(200, "ok")
+	}
+}
+
+func (s *HTTPServer) SetRoutes(listens []config.Listen) error {
+	if len(listens) == 0 {
+		return nil
+	}
+
+	for _, v := range listens {
+		if v.HTTP == nil {
+			continue
+		}
+
+		switch v.HTTP.Method {
+		case "POST":
+			s.Engine.POST(v.HTTP.Path, s.setHandler(v.HTTP.Headers, v.HTTP.Script))
+			break
+		case "GET":
+			s.Engine.GET(v.HTTP.Path, s.setHandler(v.HTTP.Headers, v.HTTP.Script))
+			break
+		default:
+			break
+		}
+	}
+
+	return nil
+}

pkg/set/set.go

@@ -0,0 +1,30 @@
+package set
+
+type Set map[interface{}]struct{}
+
+func NewSet() Set {
+	return make(map[interface{}]struct{})
+}
+
+func (s Set) Add(i interface{}) {
+	s[i] = struct{}{}
+}
+
+func (s Set) Has(i interface{}) bool {
+	_, ok := s[i]
+	return ok
+}
+
+func (s Set) Size() int {
+	return len(s)
+}
+
+func (s Set) Keys() []interface{} {
+	keys := make([]interface{}, 0)
+
+	for k, _ := range s {
+		keys = append(keys, k)
+	}
+
+	return keys
+}

pkg/tools/tools.go

@@ -0,0 +1,69 @@
+package tools
+
+import (
+	"os"
+	"path"
+	"runtime"
+	"strings"
+)
+
+// ParsePath - parse file path to absPath
+func ParsePath(dst string) string {
+	wd, err := os.Getwd()
+	if err != nil {
+		wd = ""
+	}
+
+	if []rune(dst)[0] == '~' {
+		home := UserHomeDir()
+		if len(home) > 0 {
+			dst = strings.Replace(dst, "~", home, -1)
+		}
+	}
+
+	if path.IsAbs(dst) {
+		dst = path.Clean(dst)
+		return dst
+	}
+
+	str := path.Join(wd, dst)
+	str = path.Clean(str)
+	return str
+}
+
+// UserHomeDir - get user home directory
+func UserHomeDir() string {
+	env := "HOME"
+	if runtime.GOOS == "windows" {
+		env = "USERPROFILE"
+	} else if runtime.GOOS == "plan9" {
+		env = "home"
+	}
+	return os.Getenv(env)
+}
+
+// CheckExists - check file exists
+func CheckExists(filePath string, allowDir bool) bool {
+	filePath = ParsePath(filePath)
+	stat, err := os.Stat(filePath)
+	if err != nil && !os.IsExist(err) {
+		return false
+	}
+	if !allowDir && stat.IsDir() {
+		return false
+	}
+	return true
+}
+
+// IsDir -
+func IsDir(filePath string) bool {
+	filePath = ParsePath(filePath)
+	stat, err := os.Stat(filePath)
+	if err != nil && !os.IsExist(err) {
+		return false
+	}
+	if !stat.IsDir() {
+		return false
+	}
+	return true
+}