2) lsyncd配置详解

部署流程参考:同步神器-Lsyncd

lsyncd2.3.1.zip下载地址👆

系统依赖目录： /lib64    /usr/lib64

查看依赖命令：ldconfig -p 查看系统已有依赖

由于麒麟系统更新了原本centos的依赖，导致yum安装的lsyncd无法使用，故这里使用编译安装方式

关于编译安装的本质:

./configure              #根据配置生成Makefile文件,用于提供给make使用,gcc,cc编译指令.

#lsync使用cmake生成Makefile

①安装依赖yum install -y cmake lua-devel

②解压代码,进入代码目录
cmake  . （读取当前目录，替代了./configure）

③make -j `nproc`         #调用Makefile里面的指令进行编译. 生成二进制文件（命令），执行后当前目录出现lsyncd的命令.-j表示使用多个核心进行编译，`nproc`表示获取系统核心数

④make install #创建lsyncd的目录,复制文件,配置. 收尾工作

3) systemctl配置书写

未来参考系统中其他服务即可sshd,crond,nginx

/usr/lib/systemd/system/xxxx.service 我们自己创建,服务安装后创建都在这里.

/etc/systemd/system/xxx.service 系统安装后自带位置.

4) lsyncd服务的systemctl文件

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

温馨提示:如果ExecStart/ExecStop/ExecRestart对应的指令较为复杂,或者调用变量. 需要书写脚本

比如execstoppkill需要服务的pid，使用脚本获取即可

/etc/init.d/lsyncd {start|stop|restart}

#/bin/bash

#desc: 服务管理脚本.

choice=$1

#写几个函数对应start/stop/restart操作，case语句调用函数

function start_lsyncd() {    }

function stop_lsyncd() {    }

function restart_lsyncd() {    }

case “$choice” in

      start) start_lsyncd ;;

      stop)   stop_lsyncd ;;

      restart) restart_lsyncd ;;

      * )   echo “error “

esac

其他服务service文件

###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-user-sessions.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/back-ends/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 nss-lookup.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=mixed
PrivateTmp=true

[Install]
WantedBy=multi-user.target

# /usr/lib/systemd/system/nginx.service.d/php-fpm.conf
[Unit]
Wants=php-fpm.service

###nfs服务配置

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-with-mounts.conf
# Automatically generated by nfs-server-generator

[Unit]
RequiresMountsFor=/nfs/pics
RequiresMountsFor=/nfsdata