nginx unit的初探

安装介绍:

https://www.oschina.net/p/nginx-unit

nginx unit的初探

可以看到，unit还是很强大的，居然特么都支持go 还有python

在/etc/yum.repos.d/unit.repo加入如下语句:

# cat /etc/yum.repos.d/unit.repo 
[unit]
name=unit repo
baseurl=https://packages.nginx.org/unit/centos/$releasever/$basearch/
gpgcheck=0
enabled=1
#

makecache yum源

# yum makecache

执行安装由于要测试unit-php,故安装unit-php ，如果要测试python,可以安装unit-python，如果要测试go,则安装unit-go

# yum install unit unit-php

这里有坑，安装unit-php的时候，默认就安装了5.3的

nginx unit的初探

所以，如果你自己安装了php7的，调用phpinfo的时候，会显示php 5.3 ,原因在此，这个得需要源码安装，有点坑，过几天再去踩踩

编辑配置文件

编辑配置文件，内容如下:

# cat /etc/unit/start.json 
{
    "listeners": {
        "*:8300": {
            "application": "blogs"
        }
    },

    "applications": {
        "blogs": {
            "type": "php",
            "processes": 20,
            "root": "/usr/local/nginx/php",
            "index": "index.php"
        }
    }
}
#

启动unit并且加载json文件

# /etc/init.d/unit start

# /usr/local/bin/curl -X PUT -d @/etc/unit/start.json --unix-socket /var/run/control.unit.sock http://localhost
{
"success": "Reconfiguration done."
}

当出现success": "Reconfiguration done.则怎么加载成功，可以用netstat查看端口是否已经开起来

注意，这里有坑，如果要用curl的unix-socket参数，若curl包低于7.4需要进行升级

curl下载地址:https://curl.haxx.se/download/

例如，如下安装方法:

# wget https://curl.haxx.se/download/curl-7.55.0.tar.gz
...解压，进入目录...
# ./configure 
# make
# make install

如果在编译的时候不指定安装目录，则会安装到/usr/local/bin下面

查看版本

# /usr/local/bin/curl --version
curl 7.55.0 (x86_64-pc-linux-gnu) libcurl/7.55.0 OpenSSL/1.0.1e zlib/1.2.3
Release-Date: 2017-08-09
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp 
Features: IPv6 Largefile NTLM NTLM_WB SSL libz UnixSockets HTTPS-proxy 
#

查看加载的配置

# /usr/local/bin/curl --unix-socket /var/run/control.unit.sock http://localhost
{
    "listeners": {
        "*:8300": {
            "application": "blogs"
        }
    },

    "applications": {
        "blogs": {
            "type": "php",
            "processes": 20,
            "root": "/usr/local/nginx/php",
            "index": "index.php"
        }
    }
}
#

这时候，通过netstat可以看到8300端口已经打开了，

# cat /usr/local/nginx/php/index.php 
<?php
    phpinfo();
?>
#

通过8300访问，就可以看看到phpinfo的界面了，但是前提是，root下，必须有index.php哟

重新加载配置文件

重新编写配置文件

# cat /etc/unit/start.json
{
    "listeners": {
        "*:8300": {
            "application": "blogs"
        }
    },

    "applications": {
        "blogs": {
            "type": "php",
            "processes": 20,
            "root": "/usr/local/nginx/php",
            "index": "index.php",

        "user": "php",
        "group": "php",

        "options": {
            "file": "/usr/local/php7/lib/php.ini"
        }
        }
    }
}
#

重新加载配置文件

# /usr/local/bin/curl -X PUT -d @/etc/unit/start.json --unix-socket /var/run/control.unit.sock http://localhost
{
"success": "Reconfiguration done."
}

再次查看配置文件

# /usr/local/bin/curl --unix-socket /var/run/control.unit.sock http://localhost
{
    "listeners": {
        "*:8300": {
            "application": "blogs"
        }
    },

    "applications": {
        "blogs": {
            "type": "php",
            "processes": 20,
            "root": "/usr/local/nginx/php",
            "index": "index.php",
            "user": "php",
            "group": "php",
            "options": {
                "file": "/usr/local/php7/lib/php.ini"
            }
        }
    }
}
#

这时候，可以通过页面，访问如下信息:

nginx unit的初探

Nginx proxy_pass设置

只需要在location中添加如下几项即可

proxy_pass http://127.0.0.1:8300;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

检查语法，重启nginx

# /usr/local/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
# /usr/local/nginx/sbin/nginx -s reload
#

通过Nginx访问界面如下:

nginx unit的初探