centos7安裝nginx,以及使用node測試反向代理

1.添加nginx的安裝源html

vi /etc/yum.repos.d/nginx.repo

2.輸入下面內容,並保存退出node

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/mainline/centos/7/$basearch/
gpgcheck=0
enabled=1

這裏是RHEL7nginx

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/mainline/rhel/7/$basearch/
gpgcheck=0
enabled=1

3.安裝git

yum install nginx

4.啓動github

[root@freesaber tmp]# systemctl start nginx
[root@freesaber tmp]# systemctl status nginx
● nginx.service - nginx - high performance web server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; disabled; vendor preset: disabled)
   Active: active (running) since Thu 2019-03-28 16:16:38 CST; 7s ago
     Docs: http://nginx.org/en/docs/
  Process: 6538 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS)
 Main PID: 6539 (nginx)
   CGroup: /system.slice/nginx.service
           ├─6539 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
           └─6540 nginx: worker process

 

下面安裝nodeweb

1.安裝nvm https://github.com/creationix/nvmdocker

wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash

2.進入nodejs官網,查看當前nodejs的版本shell

3.使用nvm安裝nodenpm

nvm install 10.15.3

4.指定node的版本centos

[root@freesaber ~]# nvm use v10.15.3
Now using node v10.15.3 (npm v6.4.1)
[root@freesaber ~]# nvm alias default v10.15.3
default -> v10.15.3

5.查看版本

[root@freesaber ~]# node -v
v10.15.3
[root@freesaber ~]# npm -v
6.4.1

6.編寫一段node.js腳本,並運行

vi app.js
 
 

const http = require('http')

 
 

http.createServer(function(req,res){
res.writeHead(200,{'Content-Type':'text/plan;charset=utf-8'});
res.end('來自8081端口的node響應')
}).listen(8081);

node app.js

7.在阿里雲的安全組中添加端口入規則

8.訪問

 

下面是個人兩個域名,默認都是訪問的服務器的80端口

http://www.freesaber.cn/
http://nodetree.freesaber.cn/

因爲沒有配置nginx訪問這兩個域名,都會獲得同一個返回頁面

下面將個人二級域名nodetree.freesaber.cn反向代理到個人8081端口,新開一個shell遠程窗口,不要關閉node

1.nginx的目錄結構和配置文件,咱們新增的配置放在conf.d目錄下

[root@freesaber nginx]# cd /etc/nginx
[root@freesaber nginx]# ll
total 40
drwxr-xr-x 2 root root 4096 Mar 28 16:14 conf.d
-rw-r--r-- 1 root root 1007 Mar 26 22:27 fastcgi_params
-rw-r--r-- 1 root root 2837 Mar 26 22:27 koi-utf
-rw-r--r-- 1 root root 2223 Mar 26 22:27 koi-win
-rw-r--r-- 1 root root 5231 Mar 26 22:27 mime.types
lrwxrwxrwx 1 root root   29 Mar 28 16:14 modules -> ../../usr/lib64/nginx/modules
-rw-r--r-- 1 root root  643 Mar 26 22:25 nginx.conf
-rw-r--r-- 1 root root  636 Mar 26 22:27 scgi_params
-rw-r--r-- 1 root root  664 Mar 26 22:27 uwsgi_params
-rw-r--r-- 1 root root 3610 Mar 26 22:27 win-utf
[root@freesaber nginx]# cat nginx.conf 

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
}

2.複製一份默認的配置文件

[root@freesaber nginx]# cd /etc/nginx/conf.d
[root@freesaber conf.d]# ls
default.conf
[root@freesaber conf.d]# cp default.conf nodetree.conf
[root@freesaber conf.d]# ll
total 8
-rw-r--r-- 1 root root 1093 Mar 26 22:25 default.conf
-rw-r--r-- 1 root root 1093 Mar 28 16:58 nodetree.conf
[root@freesaber conf.d]# 

3.修改內容新增的nodetree.conf,並保存退出

server {
    listen 80;
    server_name  nodetree.freesaber.cn;
    location / {
      # proxy_set_header X-Real-IP $remote_addr;
      # proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
      # proxy_set_header Host $http_host;
      # proxy_set_header X-Nginx-Proxy true;

      proxy_pass http://127.0.0.1:8081; 
    # proxy_redirect off;
}
}

4.重啓nginx,訪問二級域名,這時請求被反向代理到了8081端口的node服務,而對外的服務都是nginx的80端口。其實這個時候,能夠從阿里雲的安全組中刪除8081的入規則。由於nginx代理到本地的8081,而8081不會被外部訪問。

 

 

 

 

 

 

補充docker:

https://www.runoob.com/docker/docker-install-nginx.html

其中第一次運行nignx是爲了拿到默認配置文件,到指定目錄(多拷貝一個conf.d)。須要添加一個反向代理的目錄。

docker run -d -p 80:80 --name nginx-web -v ~/nginx/www:/usr/share/nginx/html -v ~/nginx/conf/nginx.conf:/etc/nginx/nginx.conf -v ~/nginx/logs:/var/log/nginx -v ~/nginx/conf.d:/etc/nginx/conf.d nginx

 nginx使用容器部署,而後其餘應用也使用ngxin部署後,反向代理的ip不能使用127.0.0.1。能夠經過docker inspect來查看容器內部的ip地址,能夠經過此ip地址+容器內的端口號進行代理。

添加的反向代理conf

server {
    listen       80;
    server_name huangyielm.freesaber.cn;
    location / {
       proxy_pass http://172.17.0.2:8080;
      }
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}
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