本篇文档主要解决2个问题：
1. centos5通过yum安装的master版本肯定低于centos6安装的minion，所以必须升级salt-master
2. zeromq版本太低会报这个错
2014-10-29 14:36:04,597 [salt.master ][WARNING ] You have a version of ZMQ less than ZMQ 3.2! There are known connection keep-alive issues with ZMQ < 3.2 which may result in loss of contact with minions. Please upgrade your ZMQ!
通过pip安装salt-master之前需要先安装zeromq，因为yum安装的版本太低，启动salt-master会出现上面那个警告，然后master就退出了
源码编译安装zeromq
wget http://download.zeromq.org/zeromq-3.2.5.tar.gz
解压后，通用的编译安装步骤就可以了
cd zeromq-3.2.5
.configure && make && make install
然后pip安装pyzmq
/usr/local/python/bin/pip install pyzmq --install-option="--zmq=/usr/lib"
安装salt
/usr/local/python/bin/pip install salt
这样salt是安装在python的bin目录中
/usr/local/python/bin/
|-- 2to3
|-- django-admin
|-- django-admin.py
|-- django-admin.pyc
|-- easy_install
|-- easy_install-2.7
|-- idle
|-- pip
|-- pip2
|-- pip2.7
|-- pydoc
|-- python -> python2
|-- python-config -> python2-config
|-- python2 -> python2.7
|-- python2-config -> python2.7-config
|-- python2.7
|-- python2.7-config
|-- salt
|-- salt-call
|-- salt-cloud
|-- salt-cp
|-- salt-key
|-- salt-master
|-- salt-minion
|-- salt-run
|-- salt-ssh
|-- salt-syndic
`-- smtpd.py
这样通过python的pip安装的salt是没有启动脚本的，这里附上启动脚本(yum安装的salt-master启动脚本在/etc/init.d/salt-master)
#!/bin/bash
#
# salt master startup system-v script DEBIAN_VERSION=/etc/debian_version
SUSE_RELEASE=/etc/SuSE-release
# Source function library.
if [ -f $DEBIAN_VERSION ]; then
break
elif [ -f $SUSE_RELEASE -a -r /etc/rc.status ]; then
. /etc/rc.status
else
. /etc/rc.d/init.d/functions
fi SALTMASTER=/usr/local/python/bin/salt-master
python=/usr/local/python/bin/python
SERVICE=salt-master
PROCESS=salt-master start() {
echo -n 'starting salt-master daemon:'
daemon --check $SERVICE $SALTMASTER -d
RETVAL=$?
echo
return $RETVAL
} stop() {
echo -n 'stoping salt-master daemon:'
killproc $PROCESS
RETVAL=$?
echo
} restart() {
stop
start
} case "$1" in
start|stop|restart)
$1
;;
status)
if [ -f $SUSE_RELEASE ]; then
echo -n "Checking for service salt-master "
checkproc $SALTMASTER
rc_status -v
elif [ -f $DEBIAN_VERSION ]; then
if [ -f $LOCKFILE ]; then
RETVAL=0
echo "salt-master is running."
else
RETVAL=1
echo "salt-master is stopped."
fi
else
status $PROCESS
RETVAL=$?
fi
;;
condrestart)
[ -f $LOCKFILE ] && restart || :
;;
reload)
echo "can't reload configuration, you have to restart it"
RETVAL=$?
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|reload}"
exit 1
;;
esac
exit $RETVAL