Golang(15)Deployment
Golang(15)Deployment
1. Installtion
>git clone https://github.com/Supervisor/supervisor
Right now the version is 4.0-dev, so
>mv supervisor supervisor-4.0.0-dev
try to install that from command as follow
>python ./setup.py install
Traceback (most recent call last): File "./setup.py", line 35, in <module> from setuptools import setup, find_packages ImportError: No module named setuptools
Solution:
https://pypi.python.org/pypi/setuptools#files
>curl https://bootstrap.pypa.io/ez_setup.py -o - | python
>python ./setup.py install
2. Command Arguments in go main
https://gobyexample.com/command-line-arguments
http://golang.org/pkg/os/
First of all, we need to import the os package.
import (
"encoding/json"
"fmt"
"github.com/gorilla/mux"
"io/ioutil"
"net/http"
"os"
)
argsWithProg := os.Args
var port = "8088"
if len(argsWithProg) > 1 {
port = argsWithProg[1]
}
fmt.Println("Start the server on port " + port)
http.ListenAndServe(":"+port, nil)
We get and parse the port number in command line, it both works in go run and bin
>go run src/com/sillycat/easygoapp/restjsonserver.go 8088
>bin/easygoapp 8089
3. Configure the CONF file
http://supervisord.org/configuration.html
My configuration file will be as follow /etc/supervisord.conf
[unix_http_server]
file = /var/run/supervisord.sock
chmod = 0777
#chown= root:root
[inet_http_server]
# Web管理界面设定
port=9001
username=admin
password=admin
[supervisorctl]
; 必须和'unix_http_server'里面的设定匹配 serverurl=unix:///var/run/supervisord.sock
;serverurl=http://127.0.0.1:9001
;username=admin
;password=admin
[supervisord]
logfile=/var/log/supervisord/supervisord.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10 ; (num of main logfile rotation backups;default 10)
loglevel=info ; (log level;default info; others: debug,warn,trace)
pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=true ; (start in foreground if true;default false)
minfds=1024 ; (min. avail startup file descriptors;default 1024)
minprocs=200 ; (min. avail process descriptors;default 200)
user=root ; (default is current user, required if root)
childlogdir=/var/log/supervisord/ ; ('AUTO' child log dir, default $TEMP)
[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface ; 管理的单个进程的配置，可以添加多个program
[program:bugrest]
command=/Users/carl/work/easy/easygo/bin/easygoapp 8089
autostart = true
startsecs = 5
user = root
redirect_stderr = true
stdout_logfile = /var/log/supervisord/bugrest.log
Start the Server
>sudo supervisord
Error Message
ImportError: No module named mock
Solution:
>easy_install ipython
>sudo easy_install setuptools
>sudo easy_install mock
>sudo mkdir /var/log/supervisord
Check the Status of my app
>sudo supervisorctl status
bugrest RUNNING pid 67103, uptime 0:03:08
Then I can use these commands
start bugrest, restart bugrest, stop all, reload, stop bugrest.
The most useful command is this.
>sudo supervisorctl help
default commands (type help <topic>): ===================================== add clear fg open quit remove restart start stop update avail exit maintail pid reload reread shutdown status tail version
>sudo supervisorctl version
4.0.0-dev
References:
https://github.com/astaxie/build-web-application-with-golang/blob/master/ebook/12.3.md
https://github.com/Supervisor/supervisor
http://supervisord.org/
http://ddbean.wordpress.com/2011/09/16/supervisor-python%E8%BF%9B%E7%A8%8B%E7%AE%A1%E7%90%86%E5%B7%A5%E5%85%B7/
https://pypi.python.org/pypi/setuptools#files
https://gobyexample.com/command-line-arguments