cat >/usr/lib/systemd/system/lsyncd.service<<EOF
[Unit]
Description=Live Syncing (Mirror) Daemon
[Service]
Type=simple
ExecStart=/usr/local/bin/lsyncd -nodaemon /etc/lsyncd.conf
ExecStop=pkill lsyncd
Restart=always
RestartSec=5s
[Install]
WantedBy=multi-user.target
EOF

#书写或修改systemctl文件后要执行 如下指令,让系统重新读取systemctl配置.
systemctl daemon-reload

 #!/bin/bash
#desc: 服务管理脚本.
choice=$1
function start_lsyncd() {
}
function stop_lsyncd() {
}
function restart_lsyncd() {
}
case "$choice" in
start) start_lsyncd ;;
stop) stop_lsyncd ;;
restart) restart_lsyncd ;;
* ) echo "error "
esac

 ####定时任务服务systemctl配置文件
systemctl cat crond
# /usr/lib/systemd/system/crond.service
[Unit]
Description=Command Scheduler
After=auditd.service nss-user-lookup.target systemd-usersessions.service time-sync.target ypbind.service
autofs.service
[Service]
EnvironmentFile=/etc/sysconfig/crond
ExecStart=/usr/sbin/crond -n $CRONDARGS
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
RestartSec=30s
[Install]
WantedBy=multi-user.target
Alias=cron.service
###远程连接服务
systemctl cat sshd
# /usr/lib/systemd/system/sshd.service
[Unit]
Description=OpenSSH server daemon
Documentation=man:sshd(8) man:sshd_config(5)
After=network.target sshd-keygen.target
Wants=sshd-keygen.target
[Service]
Type=notify
EnvironmentFile=-/etc/crypto-policies/backends/opensshserver.config
EnvironmentFile=-/etc/sysconfig/sshd-permitrootlogin
EnvironmentFile=-/etc/sysconfig/sshd
ExecStart=/usr/sbin/sshd -D $OPTIONS $CRYPTO_POLICY
$PERMITROOTLOGIN
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
RestartSec=42s

[Install]
WantedBy=multi-user.target
###nginx服务
systemctl cat nginx
# /usr/lib/systemd/system/nginx.service
[Unit]
Description=The nginx HTTP and reverse proxy server
After=network-online.target remote-fs.target nsslookup.target
Wants=network-online.target
[Service]
Type=forking
PIDFile=/run/nginx.pid
# Nginx will fail to start if /run/nginx.pid already exists
but has the wrong
# SELinux context. This might happen when running `nginx -t`
from the cmdline.
# https://bugzilla.redhat.com/show_bug.cgi?id=1268621
ExecStartPre=/usr/bin/rm -f /run/nginx.pid
ExecStartPre=/usr/sbin/nginx -t
ExecStart=/usr/sbin/nginx
ExecReload=/usr/sbin/nginx -s reload
KillSignal=SIGQUIT
TimeoutStopSec=5
KillMode=process
PrivateTmp=true
[Install]
WantedBy=multi-user.target
##nfs服务配置
[root@nfs01 ~/lsyncd-2.3.1]# systemctl cat nfs
# /usr/lib/systemd/system/nfs-server.service
[Unit]
Description=NFS server and services
DefaultDependencies=no
Requires= network.target proc-fs-nfsd.mount
Requires= nfs-mountd.service
Wants=rpcbind.socket network-online.target
Wants=rpc-statd.service nfs-idmapd.service
Wants=rpc-statd-notify.service
Wants=nfsdcld.service
After= network-online.target local-fs.target
After= proc-fs-nfsd.mount rpcbind.socket nfs-mountd.service
After= nfs-idmapd.service rpc-statd.service
After= nfsdcld.service
Before= rpc-statd-notify.service
# GSS services dependencies and ordering
Wants=auth-rpcgss-module.service
After=rpc-gssd.service gssproxy.service rpc-svcgssd.service
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStartPre=/usr/sbin/exportfs -r
ExecStart=/usr/sbin/rpc.nfsd
ExecStop=/usr/sbin/rpc.nfsd 0
ExecStopPost=/usr/sbin/exportfs -au
ExecStopPost=/usr/sbin/exportfs -f
ExecReload=/usr/sbin/exportfs -r
[Install]
WantedBy=multi-user.target
# /run/systemd/generator/nfs-server.service.d/order-withmounts.conf
# Automatically generated by nfs-server-generator
[Unit]
RequiresMountsFor=/nfs/pics
RequiresMountsFor=/nfsdata

 [root@nfs01 /data2]# cat /etc/lsyncd.conf
settings {
   logfile    = "/var/log/lsyncd.log",
   pidfile    = "/var/run/lsyncd.pid",
   statusFile = "/var/log/lsyncd.status",
   nodaemon   = true,
   maxProcesses = 2
}
# 监控/data/目录同步到备份服务器的nfs01backup模块
sync {
    default.rsync,
    source    = "/data/",
    target    = "rsync_backup@backup::nfs01backup",
    delay     = 3,
    delete    = true,
    rsync     = {
        binary   = "/usr/bin/rsync",
        archive  = true,
        compress = true,
        password_file = "/etc/rsync.client"
        

    }
}
# 监控/data2/目录同步到备份服务器的nfs01backup2模块
sync {
    default.rsync,
    source    = "/data2/",
    target    = "rsync_backup@backup::nfs01backup2",
    delay     = 3,
    delete    = true,
    rsync     = {
        binary   = "/usr/bin/rsync",
        archive  = true,
        compress = true,
        password_file = "/etc/rsync.client"


    }
}

 [root@nfs01 /var/log]# cat lsyncd.status 
Lsyncd status report at Fri Oct 18 16:48:13 2024

Sync1 source=/data/
There are 0 delays
Filtering:
  nothing.


Sync2 source=/data2/
There are 0 delays
Filtering:
  nothing.


Inotify watching 2 directories
  1: /data/
  2: /data2/

 [root@nfs01 /var/log]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.1.69 web01
172.16.1.70 web02
172.16.1.68 nfs01
172.16.1.67 backup
172.16.1.71 m01

# 修改配置文件
cat >/etc/rsyncd.conf <<EOF
##rsyncd.conf start##
fake super =yes 
uid = rsync
gid = rsync
use chroot = no
max connections = 2000
timeout = 600
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
ignore errors
read only = false
list = false
#hosts allow = 10.0.0.0/24
#hosts deny = 0.0.0.0/32
auth users = rsync_backup
secrets file = /etc/rsync.password
#####################################
#[data]
#comment = www by xk 14:18 2024-1-13
#path = /data

[nfs01backup]
comment = www by xk 14:18 2024-1-13
path = /nfs01backup

[nfs01backup2]
comment = www by xk 14:18 2024-1-13
path = /nfs01backup2
EOF

# 创建目录
mkdir -p /nfs01backup

#修改所有者
chown -R rsync.rsync nfs01backup

# 添加用户
useradd -s /sbin/nologin -M rsync

#添加密码
echo 'rsync_backup:Xk123456' > /etc/rsync.password
chmod 600 /etc/rsync.password

# 启动服务
systemctl enable --now rsync
systemctl restart rsync

# 创建目录
mkdir -p /data

# 创建密码
echo 'Xk123456' > $secret
chmod 600 $secret

 # 1.安装nfs
yum install -y rpcbind nfs-utils

# 2.启动rpc和nfs
systemctl start rpcbind
systemctl start nfs

# 3.修改配置 (可以加上all_squash)
cat >/etc/exports<<EOF
/nfs01data	172.16.1.0/24(rw,all_squash,anonuid=3999,anongid=3999)
EOF

# 4. 添加用户
groupadd -g 3999 www
useradd -u 3999 -g www -s /sbin/nologin -M www

# 5.准备共享目录
mkdir /data
chown www.www /data

 [root@web01 /server/scripts]# cat deploy_nfs_client.sh 
#!/bin/bash
##############################################################
# File Name:deploy_nfs_client.sh
# Version:V1.0
# Author:xk
# 
# Desc:
##############################################################
# 部署nfs客户端 deploy nfs_client
backup_ip="$1"
share_data="/data"
mount_point="/mnt"

# 添加用户
groupadd -g 3999 www
useradd -u 3999 -g www -s /sbin/nologin -M www 

# 1. 临时挂载
mount -t nfs $backup_ip:$share_data $mount_point
touch $mount_point/1.txt

 [root@nfs01 /server/scripts]# cat /etc/lsyncd.conf
settings {
   logfile    = "/var/log/lsyncd.log",
   pidfile    = "/var/run/lsyncd.pid",
   statusFile = "/var/log/lsyncd.status",
   nodaemon   = true,
   maxProcesses = 2
}

sync {
    default.rsync,
    source    = "/data/",
    target    = "rsync_backup@backup::nfs01backup",
    delay     = 3,
    delete    = true,
    rsync     = {
        binary   = "/usr/bin/rsync",
        archive  = true,
        compress = true,
        password_file = "/etc/rsync.client"
        

    }
}