Lysncd 实际上是lua语言封装了 inotify 和 rsync 工具

1.安装

sudo apt install lsyncd

2.配置（ubuntu根据shell脚本/etc/init.d/lsyncd可以知道）

vi /etc/lsyncd/lsyncd.conf.lua

配置如下

-- sync{default.rsyncssh, source="/usr/local/coremgr/resource/cloudcore_v2.6.3", host="localhost", targetdir="/home/sder/cloudcore_v2.6.3"}
settings {
logfile = "/var/log/lsyncd/lsyncd.log", #指定lsyncd工具本身运行所产生的日志文件存放位置
statusFile = "/var/log/lsyncd/lsyncd.status", #定义lsyncd监控目录状态文件的存放位置
inotifyMode = "CloseWrite", #事件的状态
maxProcesses = 1000, #指定同步时进程的最大个数
maxDelays = 10, #当事件被命中累计多少次后才进行一次同步
}

sync { #主要用来定义同步时的一些设置,可以同时同步多个目录,只需要在该代码块中事先定义好多个sync即可
default.rsync,
source = "/usr/local/coremgr/resource/cloudcore_v2.6.3",
host = "localhost",
target = "/home/sder/cloudcore_v2.6.3",
delay = 1, #当命中的事件累计到多少时再触发同步
delete = true, #删除目录中的数据会与rsync服务器同步,也可以选择不同步删除
rsync = {
binary = "/usr/bin/rsync",
password_file = "/etc/rsync.password",
archive = true,
compress = false,
verbose = true
}
}

3.启动服务

sudo systemctl status lsyncd
sudo systemctl status lsyncd

输出如下

● lsyncd.service - LSB: lsyncd daemon init script
Loaded: loaded (/etc/init.d/lsyncd; generated)
Active: active (running) since Thu 2023-02-16 14:28:24 CST; 5s ago
Docs: man:systemd-sysv-generator(8)
Process: 8610 ExecStop=/etc/init.d/lsyncd stop (code=exited, status=0/SUCCESS)
Process: 8620 ExecStart=/etc/init.d/lsyncd start (code=exited, status=0/SUCCESS)
Tasks: 4 (limit: 4915)
CGroup: /system.slice/lsyncd.service
├─8640 /usr/bin/lsyncd -pidfile /var/run/lsyncd.pid /etc/lsyncd/lsyncd.conf.lua
├─8642 /usr/bin/rsync --delete --ignore-errors -gpvsoltD -r /usr/local/coremgr/resource/cloudcore_v2.6.3/ /home/sder/cloudcore_v2.6.3/
├─8643 /usr/bin/rsync --delete --ignore-errors -gpvsoltD -r /usr/local/coremgr/resource/cloudcore_v2.6.3/ /home/sder/cloudcore_v2.6.3/
└─8644 /usr/bin/rsync --delete --ignore-errors -gpvsoltD -r /usr/local/coremgr/resource/cloudcore_v2.6.3/ /home/sder/cloudcore_v2.6.3/

2月 16 14:28:24 sder_plt_185 systemd[1]: Starting LSB: lsyncd daemon init script...
2月 16 14:28:24 sder_plt_185 lsyncd[8620]: * Starting synchronization daemon lsyncd
2月 16 14:28:24 sder_plt_185 lsyncd[8620]: ...done.
2月 16 14:28:24 sder_plt_185 systemd[1]: Started LSB: lsyncd daemon init script.