Day39
课堂笔记
2019年4月24日
一键项目实践
管理配置好：
1、创建分发秘钥
2、安装ansible工具。
3、一键执行各服务脚本
具体服务一键实现的几个步骤：
1、计划要做。
2、单机安装好，步骤抽出来。
3、写成脚本，一键安装。
4、拿到管理机安装
1）一键完成rsync服务端安装。
剧本：
#1）安装
#yum install rsync -y
#2）配置配置文件/etc/rsyncd.conf
cp /etc/rsyncd.conf{,.ori}
cat>/etc/rsyncd.conf< #rsync_config_______________start #created by oldboy #site: http://www.oldboyedu.com uid = rsync gid = rsync use chroot = no fake super = yes max connections = 200 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 = 172.16.1.0/24 hosts deny = 0.0.0.0/32 auth users = rsync_backup secrets file = /etc/rsync.password [backup] comment = welcome to oldboyedu backup! path = /backup/ EOF #3)创建用户和备份目录 useradd rsync id rsync mkdir -p /backup chown -R rsync.rsync /backup/ ls -ld /backup/ #4）启动和检查 systemctl start rsyncd systemctl enable rsyncd systemctl status rsyncd ps -ef|grep sync|grep -v grep #检查进程 netstat -lntup|grep 873 #检查端口 #5）配置密码文件 echo "rsync_backup:oldboy" > /etc/rsync.password chmod 600 /etc/rsync.password cat /etc/rsync.password ls -l /etc/rsync.password #rsync服务端配置完成。 #最终脚本路径/server/scripts/install_rsync_server.sh，需提前测试成功。 2）一键完成rsync客户端安装。 #方法1：认证密码文件 echo "oldboy" > /etc/rsync.password chmod 600 /etc/rsync.password cat /etc/rsync.password ls -l /etc/rsync.password rsync -avz /etc/hosts [email protected]::backup --password-file=/etc/rsync.password #最终脚本路径/server/scripts/install_rsync_client.sh，需提前测试成功。 3）配置管理机61-m01： 1）实现批量分发秘钥，免秘钥管理 #!/bin/bash yum install ansible -y #含sshpass [ ~/.ssh/id_rsa ]&& rm -fr ~/.ssh ssh-keygen -f ~/.ssh/id_rsa -P '' -q for ip in 31 41 7 8 do sshpass -p123456 ssh-copy-id -f -i ~/.ssh/id_rsa.pub "-o StrictHostKeyChecking=no" 172.16.1.$ip ssh 172.16.1.$ip "ifconfig eth0" done #脚本路径/server/scripts/create_key.sh 4)实现文件分发和命令管理 方法1：脚本开发分发工具 [root@m01 /server/scripts]# cat fenfa.sh #!/bin/sh . /etc/init.d/functions if [ $# -ne 2 ] then echo "usage:/bin/sh $0 localfile remotedir" exit 1 fi for n in `cat /etc/ssh/hosts` do scp -P 22 -rp $1 root@$n:$2 &>/dev/null if [ $? -eq 0 ] then action "$n successful" /bin/true else action "$n failure" /bin/false fi done ============= [root@m01 /server/scripts]# cat fenfa.sh #!/bin/sh for n in 7 31 41 do scp -P 22 -rp $1 root@$n:$2 &>/dev/null done [root@m01 /server/scripts]# cat cmd.sh for n in 31 41 7 do echo "=====172.16.1.$n======" ssh 172.16.1.$n "$1" done 方法2：使用ansible工具 yum install ansible -y [root@m01 /server/scripts]# cat /etc/ansible/hosts [oldboy] 172.16.1.31 172.16.1.41 172.16.1.7 2）优化所有机器SSH 优化目标sshd_config [root@m01 /server/scripts]# sed -n '17,22p' /etc/ssh/sshd_config ####Start by oldboy#2020-04-26### PermitEmptyPasswords no UseDNS no GSSAPIAuthentication no #ListenAddress 172.16.1.7:22 ####End by oldboy#2018-04-26### 方法1：脚本分发 [root@m01 /server/scripts]# sh fenfa.sh /etc/ssh/sshd_config /etc/ssh/ 7 successful [ 确定 ] 31 successful [ 确定 ] 41 successful [ 确定 ] [root@m01 /server/scripts]# [root@m01 /server/scripts]# [root@m01 /server/scripts]# [root@m01 /server/scripts]# sh cmd.sh "systemctl restart sshd" =====172.16.1.31====== =====172.16.1.41====== =====172.16.1.7====== 方法2：使用ansible分发 ansible oldboy -m copy -a "src=/etc/ssh/sshd_config dest=/etc/ssh/sshd_config backup=yes" ansible oldboy -m shell -a "systemctl restart sshd" 从管理机实现一键安装install_rsync_server.sh ansible 172.16.1.41 -m script -a "/server/scripts/install_rsync_server.sh" [root@m01 /server/scripts]# cat /etc/ansible/hosts [oldboy] 172.16.1.31 172.16.1.41 172.16.1.7 172.16.1.8 [rsync_client] 172.16.1.31 172.16.1.8 ansible rsync_client -m script -a "/server/scripts/install_rsync_client.sh" 实现从管理机一键完成安装rsync服务端和客户端 3）一键完成nfs服务端。 4）一键完成nfs客户端。 5）一键完成sersync服务端。 6）一键完成sersync客户端。 一个脚本one_key.sh或者一个ansible命令。完成 项目实践作业： rsync服务端写成脚本 r1.sh rsync客户端写成脚本 r2.sh nfs服务端写成脚本 n1.sh nfs客户端写成脚本 n2.sh sersync服务端写成脚本 s1.sh sersync客户端写成脚本 s2.sh /server/scripts/one_key_gaoding.sh ansible r1 -m copy -a "src=/server/scripts/r1.sh dest=/server/scripts/ mode=ugo+x" ansible r1 -m shell -a "sh /server/scripts/r1.sh" ansible r1 -m copy -a "src=/server/scripts/r2.sh dest=/server/scripts/ mode=ugo+x" ansible r2 -m shell -a "sh /server/scripts/r2.sh" ansible n1 -m shell -a "sh /server/scripts/n1.sh" ansible n2 -m shell -a "sh /server/scripts/n2.sh" ansible s1 -m shell -a "sh /server/scripts/s1.sh" ansible s2 -m shell -a "sh /server/scripts/s2.sh" /bin/sh /server/scripts/one_key_gaoding.sh 也可以使用script模块，替代copy+shell模块