리눅스 파일 시스템 동기화 lsync

패키지 설치

### install pkg
yum install lsyncd lua rsync

로컬 서버 2개 패스 동기화 및 벤드위스 제한 및 오너쉽  변경

settings {
        logfile="/var/log/lsyncd/lsyncd.log",
        statusFile="/var/log/lsyncd/lsyncd-status.log"
}

sync {
        default.rsync,
        source="/lsync-data",
        target="/lsync-backup",
        rsync = { 
                        owner = true,
                        group = true,
                        chown = "nike:nike",
                        _extra = {"--bwlimit=102400"} 
                }
}

sync {
        default.rsync,
        source="/lsync-backup",
        target="/lsync-data",
        rsync = {
                        owner = true,
                        group = true,
                        chown = "rebook:rebook",
                        _extra = {"--bwlimit=102400"}
                }
}

 

내부 디렉토리 양방향 동기화

#/etc/lsync.conf
settings {
        logfile="/var/log/lsyncd/lsyncd.log",
        statusFile="/var/log/lsyncd/lsyncd-status.log"
}

sync {
        default.rsync,
        source="/reni-test",
        target="/reni-test01"
}

sync {
        default.rsync,
        source="/reni-test01",
        target="/reni-test"
}

두 서버간의 동기화 방법

reni-glusterfs01 /lsync-data -> reni-glusterfs02 /lsync-data로 동기화

마스터와 슬레이브 서버 간의 키 기반 인증을 활성화합니다.

1 키생성

[root@reni-glusterfs01 etc]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:ldIWAvWzqfFxOio7h1aZ8/qzcGHq0C+cdTT71+kM11k root@reni-glusterfs01
The key's randomart image is:
+---[RSA 2048]----+
|      .oo .      |
|         + o     |
|        . B      |
|         + +o    |
|        So*..o  E|
|       .=*.=o   +|
|      .+===. o o+|
|      =o==o.  =.o|
|     ..=+++o  .+ |
+----[SHA256]-----+

2. 키 전달

[root@reni-glusterfs01 .ssh]# ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.0.20
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.0.20 (192.168.0.20)' can't be established.
ECDSA key fingerprint is SHA256:CC+96EMSVm//rIvMXuvcttuWpbQJlLqIA/vriJH2EK8.
ECDSA key fingerprint is MD5:55:0c:05:20:1f:94:12:9b:eb:10:86:7c:05:69:22:72.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.0.20's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.0.20'"
and check to make sure that only the key(s) you wanted were added.

[root@reni-glusterfs01 .ssh]# ssh 192.168.0.20
Last login: Mon Nov  8 19:47:11 2021 from 192.168.0.18
[root@reni-glusterfs02 ~]# exit

 

3. lsync.conf

[root@reni-glusterfs01 lsync-data]# cat /etc/lsyncd.conf 
settings {
        logfile="/var/log/lsyncd/lsyncd.log",
        statusFile="/var/log/lsyncd/lsyncd-status.log"
}

sync {
        default.rsync,
        source="/lsync-data",
        target="192.168.0.20:/lsync-data"
}
[root@reni-glusterfs01 lsync-data]#

4. USER 권한으로 설정

settings {
    logfile = "/var/log/lsyncd/lsyncd.log",
    statusFile = "/var/log/lsyncd/lsyncd-status.log"
}
sync {
    default.rsyncssh,
    source="/lsync-data",
    host="fendys@192.168.0.20",
    targetdir="/lsync-data"
}

 

추가 옵션 참고

sync {  } 안쪽에 작성

###디렉토리 제외
exclude = {
           ‘/directory01’,
           ‘/directory02’
},  

###포트를 변경

ssh = {
           port = xxxx
},
###archive 소유권까지 동일하게 동기화 
###compress는 압축 실행 여부
###verbose 로그 상세 기록 
###extra = {"--bwlimit=51200"} 네트워크 벤드위스 설정
rsync = {
           archive = true,
           compress = false,
           delete = false,
           verbose = false,
           _extra = {"--bwlimit=51200"}
}