Automatic real-time synchronization of multiple game suit codes using rsync + inotify

A description of the application scenario

There are several game suits running PHP code on the back end of LB, the same as PHP code for each server's environment deployment. It is now sometimes necessary to change the game profile, such as changing the service state of each area. Logging on to each server to change the corresponding files is cumbersome and requires the configuration files on the other server to change automatically when the configuration file on the first server is changed. So consider using rsync + inotify to synchronize the code.

Two rsync and inotify configurations

Installing Rsync services using Yum-y install Rsync

Rsync has two modes of operation, command-line mode and C/s mode

Use man rsync to view the detailed use of the rsync command

Use man rsyncd.conf to view detailed configuration files for rsync c/s mode runtime

Start rsync c/S mode

/usr/bin/rsync--daemon

/etc/rsyncd.conf This file does not exist by default and requires a manual creation.

  uid = root  gid = root  use chroot = no   max connections = 50   #strict  modes = yes  pid  file = /var/run/rsyncd.pid  lock file = /var/run/rsyncd.lock   log file = /var/log/rsyncd.log  [login_nginx]  path = /etc/ Nginx/  comment = login nginx  ignore errors  read only  = no  write only = no  hosts allow = 192.168.1.0/ 24  hosts deny = *  list = false  [game_center]   path = /var/www/html  comment = game_center code  ignore  errors  read only = no  write only = no   Hosts allow =&nbsP;192.168.1.0/24  hosts deny = *  list = false 

Here the UID and GID are particularly important, indicating that the RSYNCD daemon should have permission to the specified directory when the file is transferred. If the permissions are not correct, the transfer will fail.

Use Chroot if set to True, then rsync chroot to the specified directory before transferring the file.

List This parameter sets whether the module can be listed when the client requests to list the available modules

Max connections sets the maximum number of concurrent connections, which by default is 0, which means no limit.

Game_center is the name of this module

Path setting synchronization Directory

Ignore errors ignoring some I/O errors

Read only setting whether to allow ReadOnly

Write only sets whether to allow write-only

Hosts allow to set the IP range allowed to be accessed, either as a single IP or as an IP segment

Hosts deny sets IP ranges that are denied access

This article is from the Linux SA John blog, so be sure to keep this source http://john88wang.blog.51cto.com/2165294/1583159

Automatic real-time synchronization of multiple game suit codes using rsync + inotify