saltstack自定义路由增加模块

本篇承接上一篇 saltstack实现批量路由增加 ，在上一篇中提到了使用saltstack自带的network state实现了redhat路由的自动配置，不过在suse系统下却无解，晚上没事写了个模块，实现了针对suse系统实现路由增加。代码如下：

#coding: utf-8
# code from www.361way.com
import commands
__outputter__ = {
  'suse': 'txt',
}
_SUSE_ROUTE_FILE = '/etc/sysconfig/network/routes'
def init():
	ywgw = __grains__['dcnyw']['ywgw']
	yweth = __grains__['dcnyw']['yweth']
	dcngw = __grains__['dcnyw']['dcngw']
	dcneth = __grains__['dcnyw']['dcneth']
	return ywgw,yweth,dcngw,dcneth
def routing():
	out = ""
	ywgw,yweth,dcngw,dcneth = init()
	if ywgw and yweth and dcngw and dcneth:
		r1 = "route add default " + ywgw
		r2 = "route add -net 10.0.0.0 netmask 255.0.0.0 gw " + dcngw
		r3 = "route add -net 200.200.0.0 netmask 255.255.0.0 gw " + dcngw
		r4 = "route add -net 10.211.6.0 netmask 255.255.255.0 gw " + ywgw
		r5 = "route add -net 10.125.0.0 netmask 255.255.0.0 gw " + ywgw
		out = commands.getoutput(r1 + '\n' + r2 +'\n' + r3 +'\n' + r4 +'\n' + r5)
	return out
def suse():
	if __grains__['os'] == 'SUSE':
		routing()
		ywgw,yweth,dcngw,dcneth = init()
		routestr = """default %s --
10.0.0.0 %s 255.0.0.0 %s
10.125.0.0 %s 255.255.0.0 %s
10.211.6.0 %s 255.255.255.0 %s
200.200.0.0 %s 255.255.0.0 %s
""" %(ywgw,dcngw,dcneth,ywgw,yweth,ywgw,yweth,dcngw,dcneth)
		f = open(_SUSE_ROUTE_FILE, 'w')
		f.writelines(routestr)
		f.close()
		cmd = 'netstat -A inet -rn |tail -n +3'
		return __salt__['cmd.run'](cmd)
	else:
                return 'OS not SuSE or can not get eth and gateway info!'

上面的代码需要注意，调用系统grains时，不能写在def函数体外，最开始我想将该定义写在函数体外，发现调用不成功，在minion端的/var/log/salt/minion日志中提示grains定义不存在。

具体执行效果见下图：

上面示例中只实了suse 路由这一个功能，如果不想使用系统自带的network.route state功能，也可以把redhat下的路由增加功能在该模块中写下。