ZooKeeper是一个分布式的，开放源码的分布式应用程序协调服务，许多分布式开源系统依赖于ZooKeeper。 本文不讨论ZooKeeper的细节，只是基于Fabric来演示怎么部署安装一个简单的ZooKeeper集群。
详细内容请移步 zookeeper官网
机器列表：
10.13.11.21 test1121 10.13.11.22 test1122 10.13.11.23 test1123 10.13.11.24 test1124 10.13.11.25 test1125
tickTime=2000 initLimit=10 syncLimit=5 dataDir=/cluster/zookeeper/data clientPort=2181 server.1=test1121:2888:3888 server.2=test1122:2888:3888 server.3=test1123:2888:3888 server.4=test1124:2888:3888 server.5=test1125:2888:3888
fabfile见如下,发布机器中/home/admin/zookeeper为zookeeper所在目录，此fabfile将把zookeeper安装到/cluster目录下。myid根据脚本中的zookeeper_myid_dict分配。
from fabric.api import *
host_deploy = ['10.13.11.21','10.13.11.22','10.13.11.23','10.13.11.24','10.13.11.25']
host_deploy3 = ['10.13.11.21','10.13.11.22','10.13.11.23']
host_deploy2 = ['10.13.11.24','10.13.11.25']
env.port = 22
env.password = 'xxx' #-I
env.user = 'xxx' #-u
env.roledefs = { #-R
'deploy': host_deploy,
'deploy3': host_deploy3,
'deploy2': host_deploy2
}
zookeeper_myid_dict = {
'10.13.11.21': '1',
'10.13.11.22': '2',
'10.13.11.23': '3',
'10.13.11.24': '4',
'10.13.11.25': '5'
}
source_root='/home/admin/'
dest_root='/cluster/'
@parallel
def remove_zookeeper():
sudo("su admin -c '"+dest_root+"/zookeeper/bin/zkServer.sh stop'")
sudo("rm -rf "+dest_root+"/zookeeper*")
@parallel
def upload_zookeeper():
put(source_root+'/software/zookeeper-3.4.8.tar.gz','/tmp/zookeeper-3.4.8.tar.gz',mode=0644)
sudo('mkdir -p '+dest_root)
sudo("rm -rf "+dest_root+"/zookeeper")
sudo('tar xf /tmp/zookeeper-3.4.8.tar.gz -C '+dest_root)
sudo('chown admin '+dest_root+' -R')
sudo("su admin -c 'ln -s "+dest_root+"/zookeeper-3.4.8 "+dest_root+"/zookeeper'")
def prepare_local(ip):
local("rm -rf "+ip)
local("mkdir "+ip)
with lcd(ip):
local("cp -rf "+source_root+"/zookeeper/conf/ conf")
local("tar czf zookeeper_conf.tgz conf")
@parallel
def sync_zookeeper():
myid=zookeeper_myid_dict[env.host]
prepare_local(env.host)
put(env.host+'/zookeeper_conf.tgz','/tmp/zookeeper_conf.tgz',mode=0644)
sudo("su admin -c 'tar xf /tmp/zookeeper_conf.tgz -C "+dest_root+"/zookeeper/'")
sudo("su admin -c 'mkdir -p "+dest_root+"/zookeeper/data'")
sudo("su admin -c 'echo "+myid+" >"+dest_root+"/zookeeper/data/myid'")
@parallel
def start_zookeeper():
with cd(dest_root+"/zookeeper/"):
sudo("su admin -c 'sh "+dest_root+"/zookeeper/bin/zkServer.sh start'")
@parallel
def stop_zookeeper():
with cd(dest_root+"/zookeeper/"):
sudo("su admin -c 'sh "+dest_root+"/zookeeper/bin/zkServer.sh stop'")
如何安装
fab -R deploy upload_zookeeper fab -R deploy sync_zookeeper fab -R deploy start_zookeeper