fabric初步实践

fabric作为一种强大的运维工具&＃xff0c;可以让部署运维轻松很多&＃xff0c;最简单的fabric使用&＃xff0c;首先设置env.user,env.port,env.hosts,env.password,如&＃xff1a;

#coding:utf8
from fabric.api import *
#用户名
env.user &＃61; "shikanon"
#中转ip&＃xff0c;堡垒机
env.gateway &＃61; "10.17.35.92"
env.port &＃61; 12303
env.hosts &＃61; ["192.168.6.%d"%i for i in range(2,11)]
#密码
env.password &＃61; "shikanon_123456"


这样就配置好了集群&＃xff0c;但通常情况下为了安全堡垒机和各机器的用户名、端口号、密码都是不同的&＃xff0c;那么需要有针对性设置&＃xff0c;在fabric中用env.hosts和env.password组合就可以了&＃xff0c;不过需要注意的是原来的ip形式需要全部改为user&＃64;host:port这种形式&＃xff0c;代码如下

#需要以user&＃64;host:port填写
env.gateway &＃61; "shikanon&＃64;183.3.169.134:12020"
env.hosts &＃61; ["shikanon&＃64;183.3.169.134:12020", "root&＃64;192.168.0.171:22", "root&＃64;192.168.0.181:22"]
#可以定义不同的密码
env.passwords &＃61; {"shikanon&＃64;183.3.169.134:12020":"shikanon_123456","root&＃64;192.168.0.171:22":"12shikanon_3456","root&＃64;192.168.0.181:22":"1234shikanon_56"}
#下面是rsa免登录设置
#
def create_keygen():with settings(warn_only&＃61;True):run("rm -rf shikanon/.ssh")with settings(warn_only&＃61;True):run("mkdir -p shikanon/.ssh")with settings(warn_only&＃61;True):result &＃61; run(r"ssh-keygen -t rsa -P &＃39;&＃39; -f ~/shikanon/.ssh/id_rsa")def get_ras_id():get("~/shikanon/.ssh/id_rsa.pub","./rsa/rsa_%s_id_rsa.pub"%(env.host))&＃64;runs_once
def zip():local("zip -r authorized_keys.zip rsa/")def clean():run("rm -rf ~/shikanon/")def upload():run("rm -f authorized_keys.zip")put("authorized_keys.zip","~/shikanon/")with settings(warn_only&＃61;True):run("unzip ~/shikanon/authorized_keys.zip -d ~/shikanon/.ssh")rsa_files &＃61; run("ls ~/shikanon/.ssh/rsa/")for commandline in rsa_files.split("\r\n"):for rsa_file in commandline.split(" "):if rsa_file:print("rsa_file:",rsa_file)run("cat ~/shikanon/.ssh/rsa/%s >> ~/shikanon/.ssh/authorized_keys"%rsa_file)


以上是一个设置ssh免密码登陆的脚本