Maintain Golang processes from zero deployment supervisor

This is a creation in Article, where the information may have evolved or changed.

Golang Supervisor

Go prep work

Create a <demo> project with MAIN.GO code inside
Code excerpt from <go WEB programming >

package mainimport (    "fmt"    "log"    "net/http"    "strings")func sayhelloName(w http.ResponseWriter, r *http.Request) {    r.ParseForm()       //解析参数，默认是不会解析的    fmt.Println(r.Form) //这些信息是输出到服务器端的打印信息    fmt.Println("path", r.URL.Path)    fmt.Println("scheme", r.URL.Scheme)    fmt.Println(r.Form["url_long"])    for k, v := range r.Form {        fmt.Println("key:", k)        fmt.Println("val:", strings.Join(v, ""))    }    fmt.Fprintf(w, "Hello astaxie!") //这个写入到w的是输出到客户端的}func main() {    http.HandleFunc("/", sayhelloName)       //设置访问的路由    err := http.ListenAndServe(":9090", nil) //设置监听的端口    if err != nil {        log.Fatal("ListenAndServe: ", err)    }}

Go Build
Go Install
The local test passes the running demo package to the server after

Installing Supervisor

Official address
Http://supervisord.org/index.html

sudo yum install python-setuptoolssudo easy_install supervisor

Build configuration file after successful installation

sudo echo_supervisord_conf > /etc/supervisord.conf

Here is very simple, if you encounter problems can be Google under

To add your own configuration file

I also learn online under the/etc/to create a special put. conf folder, feel good, than blindly modify supervisord.conf file to more convenient later management
I named it
"Supervisorconffile"
Create a new. conf file in Supervisorconffile
It's mine
Demo.conf

Description

command：表示运行的命令，我这是填写的我demo安装包的原则路径。autostart：表示是否跟随supervisor一起启动。autorestart：如果该程序挂了，是否重新启动。stdout_logfile：终端标准输出重定向文件。stderr_logfile：终端错误输出重定向文件。

Note the two log files above
/root/applications/logfile/log/demo.log
/root/applications/logfile/err/demo.log
To create the corresponding log under the corresponding directory

Modifying a configuration file

All right, start.
Edit/etc/supervisord.conf

At the bottom of the file
It's just opened.

;[include];files = relative/directory/*.ini

Change it.

[include]files = /etc/supervisorconffile/*.conf

Note the '; ' in front of [include] To get rid of it, I lost some time on this.

Start

sudo /usr/bin/supervisord -c /etc/supervisord.conf

An error.
Error:another program was already listening on a port the one of our HTTP servers are configured to use. Shut This program down first before starting Supervisord.

Check online to perform the following two commands to resolve

1.find / -name supervisor.sock2.unlink /***/supervisor.sock

Execute again
Sudo/usr/bin/supervisord-c/etc/supervisord.conf
Startup success
I have nothing to do with this success. Print output feedback, no feedback is successful no problem.

You can enter a command to see if the demo service you just started is a success

sudo supervisorctl status demo

Output

demo                             

View Status Entry Directory

supervisorctl

Output:

demo                             RUNNING   pid 4806, uptime 0:04:05

Supervisor> Help
Use Help to view assistance
Enter Exit exit