ehlxr
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monitor
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update at 2019-11-22 18:11:26 by ehlxr

master
ehlxr 2019-11-22 18:11:26 +08:00
parent c8a97cc9ae
commit c441f95a2c
7 changed files with 202 additions and 102 deletions
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1
go.mod
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@ -8,6 +8,7 @@ require (
github.com/hpcloud/tail v1.0.1-0.20180514194441-a1dbeea552b7
github.com/jessevdk/go-flags v1.4.1-0.20181221193153-c0795c8afcf4
golang.org/x/sys v0.0.0-20191113165036-4c7a9d0fe056 // indirect
golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
gopkg.in/fsnotify/fsnotify.v1 v1.4.7 // indirect
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
unknwon.dev/clog/v2 v2.0.0-beta.5

147
main.go
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@ -1,60 +1,52 @@
package main
import (
"encoding/base64"
"fmt"
"github.com/ehlxr/monitor/pkg"
"github.com/hpcloud/tail"
"github.com/jessevdk/go-flags"
"strings"
"time"
log "unknwon.dev/clog/v2"
dt "github.com/JetBlink/dingtalk-notify-go-sdk"
"os"
"regexp"
)
var (
AppName string
Version string
BuildTime string
GitCommit string
GoVersion string
versionTpl = `%s
Name: %s
Version: %s
BuildTime: %s
GitCommit: %s
GoVersion: %s
`
bannerBase64 = "DQogX18gIF9fICBfX19fXyAgXyAgXyAgX19fXyAgX19fXyAgX19fX18gIF9fX18gDQooICBcLyAgKSggIF8gICkoIFwoICkoXyAgXykoXyAgXykoICBfICApKCAgXyBcDQogKSAgICAoICApKF8pKCAgKSAgKCAgXykoXyAgICkoICAgKShfKSggICkgICAvDQooXy9cL1xfKShfX19fXykoXylcXykoX19fXykgKF9fKSAoX19fX18pKF8pXF8pDQo="
opts struct {
AppName string `short:"n" long:"monitor-app-name" env:"MONITOR_APP_NAME" description:"The name of the application being monitored, which will be added to the content before"`
File string `short:"f" long:"monitor-file" env:"MONITOR_FILE" description:"The file to be monitored" required:"true"`
KeyWord string `short:"k" long:"search-keyword" env:"SEARCH_KEYWORD" description:"Keyword to be search for" default:"ERRO"`
KeyWordIgnoreCase bool `short:"c" long:"keyword-case-sensitive" env:"KEYWORD_IGNORE_CASE" description:"Whether Keyword ignore case"`
Version bool `short:"v" long:"version" description:"Show version info"`
Robot robot `group:"DingTalk Robot Options" namespace:"robot" env-namespace:"ROBOT" `
}
dingTalk *dt.Robot
limiter *pkg.LimiterServer
)
type robot struct {
Token string `short:"t" long:"token" env:"TOKEN" description:"DingTalk robot access token" required:"true"`
Secret string `short:"s" long:"secret" env:"SECRET" description:"DingTalk robot secret"`
AtMobiles []string `short:"m" long:"at-mobiles" env:"AT_MOBILES" env-delim:"," description:"The mobile of the person will be at"`
IsAtAll bool `short:"a" long:"at-all" env:"AT_ALL" description:"Whether at everyone"`
}
func init() {
initLog()
err := log.NewConsole()
if err != nil {
panic("unable to create new logger: " + err.Error())
}
}
func main() {
parseArg()
pkg.ParseArg()
tf, err := tail.TailFile(opts.File,
dingTalk = dt.NewRobot(pkg.Opts.Robot.Token, pkg.Opts.Robot.Secret)
limiter = pkg.NewLimiterServer(1*time.Minute, 20)
tailFile()
}
func sendMsg(content string) {
if err := dingTalk.SendTextMessage(
fmt.Sprintf("%s\n%s", pkg.Opts.AppName, content),
pkg.Opts.Robot.AtMobiles,
pkg.Opts.Robot.IsAtAll,
); err != nil {
log.Error("%+v", err)
}
log.Info("send message <%s> success", content)
}
func tailFile() {
tf, err := tail.TailFile(pkg.Opts.File,
tail.Config{
ReOpen: true,
Follow: true,
@ -63,79 +55,32 @@ func main() {
if err != nil {
log.Fatal("Tail file %+v", err)
}
log.Info("monitor app <%s> file <%s>, filter by <%s>, ignore case <%v>...",
opts.AppName,
opts.File,
opts.KeyWord,
opts.KeyWordIgnoreCase)
dingTalk := dt.NewRobot(opts.Robot.Token, opts.Robot.Secret)
if opts.KeyWordIgnoreCase {
opts.KeyWord = strings.ToLower(opts.KeyWord)
if pkg.Opts.KeyWordIgnoreCase {
pkg.Opts.KeyWord = strings.ToLower(pkg.Opts.KeyWord)
}
log.Info("monitor app <%s> file <%s>, filter by <%s>, ignore case <%v>...",
pkg.Opts.AppName,
pkg.Opts.File,
pkg.Opts.KeyWord,
pkg.Opts.KeyWordIgnoreCase)
for line := range tf.Lines {
text := line.Text
if opts.KeyWordIgnoreCase {
if pkg.Opts.KeyWordIgnoreCase {
text = strings.ToLower(text)
}
if ok, _ := regexp.Match(opts.KeyWord, []byte(text)); ok {
if ok, _ := regexp.Match(pkg.Opts.KeyWord, []byte(text)); ok {
if limiter.IsAvailable() {
limiter.Increase()
if err = dingTalk.SendTextMessage(
// opts.AppName,
fmt.Sprintf("%s\n%s", opts.AppName, line.Text),
opts.Robot.AtMobiles,
opts.Robot.IsAtAll,
); err != nil {
log.Error("%+v", err)
continue
sendMsg(line.Text)
} else {
log.Error("dingTalk 1 m allow send 20 msg. msg %v discarded.",
line.Text)
}
log.Info("send message <%s> success", line.Text)
}
}
}
func initLog() {
err := log.NewConsole()
if err != nil {
panic("unable to create new logger: " + err.Error())
}
}
func parseArg() {
parser := flags.NewParser(&opts, flags.HelpFlag|flags.PassDoubleDash)
parser.NamespaceDelimiter = "-"
if AppName != "" {
parser.Name = AppName
}
if _, err := parser.Parse(); err != nil {
if opts.Version {
// -v
printVersion()
os.Exit(0)
}
if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
// -h
_, _ = fmt.Fprintln(os.Stdout, err)
os.Exit(0)
}
// err
_, _ = fmt.Fprintln(os.Stderr, err)
parser.WriteHelp(os.Stderr)
os.Exit(1)
}
}
// printVersion Print out version information
func printVersion() {
banner, _ := base64.StdEncoding.DecodeString(bannerBase64)
fmt.Printf(versionTpl, banner, AppName, Version, BuildTime, GitCommit, GoVersion)
}

49
pkg/limiter.go Normal file
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@ -0,0 +1,49 @@
package pkg
import (
"sync"
"time"
log "unknwon.dev/clog/v2"
)
type LimiterServer struct {
Interval time.Duration
MaxCount int
Lock sync.Mutex
ReqCount int
}
func NewLimiterServer(interval time.Duration, maxCount int) *LimiterServer {
limiter := &LimiterServer{
Interval: interval,
MaxCount: maxCount,
}
go func() {
ticker := time.NewTicker(interval)
for {
<-ticker.C
limiter.Lock.Lock()
log.Info("Reset LimiterServer Count...")
limiter.ReqCount = 0
limiter.Lock.Unlock()
}
}()
return limiter
}
func (limiter *LimiterServer) Increase() {
limiter.Lock.Lock()
defer limiter.Lock.Unlock()
limiter.ReqCount += 1
}
func (limiter *LimiterServer) IsAvailable() bool {
limiter.Lock.Lock()
defer limiter.Lock.Unlock()
return limiter.ReqCount < limiter.MaxCount
}

20
pkg/limiter_test.go Normal file
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@ -0,0 +1,20 @@
package pkg
import (
"testing"
"time"
)
func TestLimiter(t *testing.T) {
limiter := NewLimiterServer(1*time.Second, 5)
for {
if limiter.IsAvailable() {
limiter.Increase()
t.Log("hello...", limiter.ReqCount)
} else {
return
}
}
}

55
pkg/parser.go Normal file
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@ -0,0 +1,55 @@
package pkg
import (
"fmt"
"github.com/jessevdk/go-flags"
"os"
)
var (
Opts struct {
AppName string `short:"n" long:"monitor-app-name" env:"MONITOR_APP_NAME" description:"The name of the application being monitored, which will be added to the content before"`
File string `short:"f" long:"monitor-file" env:"MONITOR_FILE" description:"The file to be monitored" required:"true"`
KeyWord string `short:"k" long:"search-keyword" env:"SEARCH_KEYWORD" description:"Keyword to be search for" default:"ERRO"`
KeyWordIgnoreCase bool `short:"c" long:"keyword-case-sensitive" env:"KEYWORD_IGNORE_CASE" description:"Whether Keyword ignore case"`
Version bool `short:"v" long:"version" description:"Show version info"`
Robot Robot `group:"DingTalk Robot Options" namespace:"robot" env-namespace:"ROBOT" `
}
)
type Robot struct {
Token string `short:"t" long:"token" env:"TOKEN" description:"DingTalk robot access token" required:"true"`
Secret string `short:"s" long:"secret" env:"SECRET" description:"DingTalk robot secret"`
AtMobiles []string `short:"m" long:"at-mobiles" env:"AT_MOBILES" env-delim:"," description:"The mobile of the person will be at"`
IsAtAll bool `short:"a" long:"at-all" env:"AT_ALL" description:"Whether at everyone"`
}
func ParseArg() {
parser := flags.NewParser(&Opts, flags.HelpFlag|flags.PassDoubleDash)
parser.NamespaceDelimiter = "-"
if AppName != "" {
parser.Name = AppName
}
if _, err := parser.Parse(); err != nil {
if Opts.Version {
// -v
PrintVersion()
os.Exit(0)
}
if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
// -h
_, _ = fmt.Fprintln(os.Stdout, err)
os.Exit(0)
}
// err
_, _ = fmt.Fprintln(os.Stderr, err)
parser.WriteHelp(os.Stderr)
os.Exit(1)
}
}

30
pkg/version.go Normal file
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@ -0,0 +1,30 @@
package pkg
import (
"encoding/base64"
"fmt"
)
var (
AppName string
Version string
BuildTime string
GitCommit string
GoVersion string
versionTpl = `%s
Name: %s
Version: %s
BuildTime: %s
GitCommit: %s
GoVersion: %s
`
bannerBase64 = "DQogX18gIF9fICBfX19fXyAgXyAgXyAgX19fXyAgX19fXyAgX19fX18gIF9fX18gDQooICBcLyAgKSggIF8gICkoIFwoICkoXyAgXykoXyAgXykoICBfICApKCAgXyBcDQogKSAgICAoICApKF8pKCAgKSAgKCAgXykoXyAgICkoICAgKShfKSggICkgICAvDQooXy9cL1xfKShfX19fXykoXylcXykoX19fXykgKF9fKSAoX19fX18pKF8pXF8pDQo="
)
// PrintVersion Print out version information
func PrintVersion() {
banner, _ := base64.StdEncoding.DecodeString(bannerBase64)
fmt.Printf(versionTpl, banner, AppName, Version, BuildTime, GitCommit, GoVersion)
}

2
version
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@ -1 +1 @@
v0.0.3
v0.0.4