Welcome to the Sentry documentation. Sentry is an open-source company,   
providing an application monitoring platform that helps you identify    
issues in real-time. Here we cover everything about the product, the    platform integrations, and self-hosted Sentry.    

欢迎使用Sentry文档。 Sentry是一家开源公司，提供了一个应用程序监视平台，可以帮助您实时识别问题。  
在这里，我们涵盖了有关产品，平台集成和自托管Sentry的所有内容。

【通俗讲的讲】
我们可以使用Sentry平台实时地监控我们的应用或服务、并且可以收集相关运行时错误或异常日志信息，    
在第一时间将错误信息推送至我们的后台或邮件组等。这样不仅能主动帮我们第一时间发现线上问题，   
而且很好的保留了异常发生时的“现场”，更有助于我们快速定位问题根源，提高解决问题的效率，逐步提高产品的稳定性和用户体验。            

CentOS Linux release 7.6.1810 (Core)

1.docker run -d --name sentry-redis redis

2.docker run -d --name sentry-postgres -e POSTGRES_PASSWORD=secret -e POSTGRES_USER=sentry postgres

3.docker run --rm sentry config generate-secret-key
这一步会生成一个密钥key，比如 *l%)ti9=v#!pt__!#hpz3g33tq3hy2afpv%sda6^^ghr24)k4q ，先记下来，后面步骤中多个容器会共享该key 


4.docker run -it --rm -e SENTRY_SECRET_KEY='*l%)ti9=v#!pt__!#hpz3g33tq3hy2afpv%sda6^^ghr24)k4q' --link sentry-postgres:postgres --link sentry-redis:redis sentry upgrade


5.docker run -d -p 9090:9000 --name my-sentry -e SENTRY_SECRET_KEY='*l%)ti9=v#!pt__!#hpz3g33tq3hy2afpv%sda6^^ghr24)k4q' --link sentry-redis:redis --link sentry-postgres:postgres sentry


6.docker run -d --name sentry-cron -e SENTRY_SECRET_KEY='*l%)ti9=v#!pt__!#hpz3g33tq3hy2afpv%sda6^^ghr24)k4q' --link sentry-postgres:postgres --link sentry-redis:redis sentry run cron


7.docker run -d --name sentry-worker-1 -e SENTRY_SECRET_KEY='*l%)ti9=v#!pt__!#hpz3g33tq3hy2afpv%sda6^^ghr24)k4q' --link sentry-postgres:postgres --link sentry-redis:redis sentry run worker

上述几步完成后，查看下刚才创建的容器以及运行状态是否完好：
➜  /tmp docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
7ed2439c527c        sentry              "/entrypoint.sh run …"   3 hours ago         Up 3 hours          9000/tcp                 sentry-worker-1
f3779877d102        sentry              "/entrypoint.sh run …"   3 hours ago         Up 3 hours          9000/tcp                 sentry-cron
9c190bd613a6        sentry              "/entrypoint.sh run …"   3 hours ago         Up 3 hours          0.0.0.0:9090->9000/tcp   my-sentry
188c744c2f21        postgres            "docker-entrypoint.s…"   4 hours ago         Up 4 hours          5432/tcp                 sentry-postgres
abad0564ca2b        redis               "docker-entrypoint.s…"   4 hours ago         Up 4 hours          6379/tcp                 sentry-redis


然后检查下宿主机防火墙或安全组策略，放行上述映射的9090端口；




import (
	"errors"
	"time"
	"github.com/getsentry/sentry-go"
)
func main() {
	sentry.Init(sentry.ClientOptions{
		Dsn: "http://60e443996c464def804082d3c7e04de3@localhost:9090/2",
	})
	sentry.CaptureException(errors.New("my error"))
	// Since sentry emits events in the background we need to make sure
	// they are sent before we shut down
	sentry.Flush(time.Second * 5)
}

import (
	"fmt"
	"net/http"
	"github.com/getsentry/sentry-go"
	sentryfasthttp "github.com/getsentry/sentry-go/fasthttp"
)
// To initialize Sentry's handler, you need to initialize Sentry itself beforehand
if err := sentry.Init(sentry.ClientOptions{
	Dsn: "https://079843729765443f982ef8f3aea18766@o396662.ingest.sentry.io/5250281",
}); err != nil {
	fmt.Printf("Sentry initialization failed: %v\n", err)
}
// Create an instance of sentryfasthttp
sentryHandler := sentryfasthttp.New(sentryfasthttp.Options{})
// After creating the instance, you can attach the handler as one of your middleware
fastHTTPHandler := sentryHandler.Handle(func(ctx *fasthttp.RequestCtx) {
	panic("y tho")
})
fmt.Println("Listening and serving HTTP on :3000")
// And run it
if err := fasthttp.ListenAndServe(":3000", fastHTTPHandler); err != nil {
	panic(err)
}

package main
import (
    "log"
    "time"
    "github.com/getsentry/sentry-go"
)
func main() {
    err := sentry.Init(sentry.ClientOptions{
        // Either set your DSN here or set the SENTRY_DSN environment variable.
        Dsn: "https://xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx@xxxxxxx.ingest.sentry.io/xxxxxxx",//这里需要替换为您自己的Dsn
        // Enable printing of SDK debug messages.
        // Useful when getting started or trying to figure something out.
        Debug: true,
    })
    if err != nil {
        log.Fatalf("sentry.Init: %s", err)
    }
    // Flush buffered events before the program terminates.
    // Set the timeout to the maximum duration the program can afford to wait.
    defer sentry.Flush(2 * time.Second)
    //sentry.CaptureException("自定义运行时错误1")
    sentry.CaptureMessage("自定义error")
}