salt-api也用了一段时间了，现在从安装、配置、使用三个方面梳理下知识。
1、安装
采用pip安装方便快捷，当然编译安装也很nice。
安装pip采用的编译安装的方式，版本当前最新1.5.6，下载、解压、编译、安装是不变的法则。

[root@saltstack ~]#wget https://pypi.python.org/packages/source/p/pip/pip-1.5.6.tar.gz#md5=01026f87978932060cc86c1dc527903e --no-check-certificate [root@saltstack ~]#tar xvfz pip-1.5.6.tar.gz [root@saltstack ~]#cd pip-1.5.6 [root@saltstack pip-1.5.6]#python setup.py build [root@saltstack pip-1.5.6]#python setup.py install #安装完成后可以用pip freeze查看已安装的packages [root@saltstack pip-1.5.6]#pip freeze

安装CherryPy，版本3.2.3

[root@saltstack ~]#pip install cherrypy==3.2.3

安装salt-api，版本0.8.3

[root@saltstack ~]#pip install salt-api==0.8.3

2、配置

[root@saltstack ~]# cd /etc/pki/tls/certs [root@saltstack certs]# make testcert umask 77 ;     /usr/bin/openssl genrsa -aes128 2048 > /etc/pki/tls/private/localhost.key Generating RSA private key, 2048 bit long modulus ...+++ ..................................................................+++ e is 65537 (0x10001) Enter pass phrase:    #键入加密短语，4到8191个字符 Verifying - Enter pass phrase:    #确认加密短语 umask 77 ;     /usr/bin/openssl req -utf8 -new -key /etc/pki/tls/private/localhost.key -x509 -days 365 -out /etc/pki/tls/certs/localhost.crt -set_serial 0 Enter pass phrase for /etc/pki/tls/private/localhost.key:    #再次输入相同的加密短语 You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [XX]:CN    #都可以选填 State or Province Name (full name) []:Shanghai Locality Name (eg, city) [Default City]:Shanghai Organization Name (eg, company) [Default Company Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, your name or your server's hostname) []: Email Address []:1989051805@qq.com [root@saltstack certs]# cd ../private/ [root@saltstack private]# openssl rsa -in localhost.key -out localhost_nopass.key Enter pass phrase for localhost.key:    #输入之前的加密短语 writing RSA key

如果遇到这样的错误

[root@saltstack certs]# make testcert umask 77 ;     /usr/bin/openssl req -utf8 -new -key /etc/pki/tls/private/localhost.key -x509 -days 365 -out /etc/pki/tls/certs/localhost.crt -set_serial 0 unable to load Private Key 139696733648712:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:703:Expecting: ANY PRIVATE KEY make: *** [/etc/pki/tls/certs/localhost.crt]

删掉文件/etc/pki/tls/private/localhost.key文件，然后再make testcert。
为salt-api创建用户并设定密码，用户名没有特别要求，我就用saltapi好了。

[root@saltstack ~]#useradd -M -s /sbin/nologin saltapi #由于是测试，故采用了弱密码"password"，正式环境必须采用强密码，多用特殊字符 [root@saltstack ~]# passwd saltapi

新增加配置文件/etc/salt/master.d/api.conf和/etc/salt/master.d/eauth.conf

#该配置文件给予saltapi用户所有模块使用权限，出于安全考虑一般只给予特定模块使用权限 [root@saltstack master.d]# cat eauth.conf external_auth:   pam:     saltapi:       - .* [root@saltstack master.d]# [root@saltstack master.d]# cat api.conf rest_cherrypy:   port: 8888   ssl_crt: /etc/pki/tls/certs/localhost.crt   ssl_key: /etc/pki/tls/private/localhost_nopass.key [root@saltstack master.d]#

寻找salt-api的启动脚本，我比较懒就不自己写了,在页面https://github.com/saltstack/salt-api/releases下载salt-api的tar.gz包,启动脚本在解压包的这个位置./pkg/rpm/salt-api。
不过提供的脚本貌似有个小的bug，就是使用restart参数时，salt-api能够stop但是不能start，如下：

[root@saltstack ~]# /etc/init.d/salt-api restart Stopping salt-api daemon:                                  [确定] Starting salt-api daemon:                                  [失败]

我估计可能是有些相关资源在下次启动前没有来得及释放造成的，解决方法很简单在脚本的restart函数的stop和start之间加上sleep语句。

restart() {    stop    sleep 1    start }

然后重启就没有问题了

[root@saltstack ~]# /etc/init.d/salt-api restart Stopping salt-api daemon:                                  [确定] Starting salt-api daemon:                                  [确定] [root@saltstack ~]#

最后重启salt-master在启动salt-api并将salt-api加入开机启动，安装就完成了。

[root@saltstack ~]# chkconfig salt-api on [root@saltstack ~]# /etc/init.d/salt-master restart Stopping salt-master daemon:                               [确定] Starting salt-master daemon:                               [确定] [root@saltstack ~]# /etc/init.d/salt-api restart Stopping salt-api daemon:                                  [确定] Starting salt-api daemon:                                  [确定] [root@saltstack ~]#

3、使用（基本的使用方法）
登录获取token

[root@syndic02 ~]# curl -k https://192.168.186.134:8888/login -H "Accept: application/x-yaml" -d username='saltapi' -d password='password' -d eauth='pam' return: - eauth: pam   expire: 1416324685.2597771   perms:   - .*   start: 1416281485.2597761   token: 6171a922a9718ccb40e94ee7c8eb8768f4eea4e5   user: saltapi

获取token后就可以使用token通信

#相当于在salt-master本地执行salt * test.ping [root@syndic02 ~]# curl -k https://192.168.186.134:8888/ -H "Accept: application/x-yaml" -H "X-Auth-Token: 6171a922a9718ccb40e94ee7c8eb8768f4eea4e5" -d client='local' -d tgt='*' -d fun='test.ping' return: - syndic01: true   syndic01-minion02: true   syndic02: true   syndic02-minion02: true   #相当于在salt-master本地执行salt * test.echo 'hello world' [root@syndic02 ~]# curl -k https://192.168.186.134:8888/ -H "Accept: application/x-yaml" -H "X-Auth-Token: 6171a922a9718ccb40e94ee7c8eb8768f4eea4e5" -d client='local' -d tgt='*' -d fun='test.echo' -d arg='hello world' return: - syndic01: hello world   syndic01-minion02: hello world   syndic02: hello world   syndic02-minion02: hello world [root@syndic02 ~]#

运维开发这样使用还是不方便的，下面写的是一个salt-api的类(其它的文章也提到过)可以参考。

#!/usr/bin/env python #coding=utf-8   import urllib2, urllib, json, re   class saltAPI:     def __init__(self):         self.__url = 'https://192.168.186.134:8888'       #salt-api监控的地址和端口如:'https://192.168.186.134:8888'         self.__user =  'saltapi'             #salt-api用户名         self.__password = 'password'          #salt-api用户密码         self.__token_id = self.salt_login()       def salt_login(self):         params = {'eauth': 'pam', 'username': self.__user, 'password': self.__password}         encode = urllib.urlencode(params)         obj = urllib.unquote(encode)         headers = {'X-Auth-Token':''}         url = self.__url + '/login'         req = urllib2.Request(url, obj, headers)         opener = urllib2.urlopen(req)         content = json.loads(opener.read())         try:             token = content['return'][0]['token']             return token         except KeyError:             raise KeyError       def postRequest(self, obj, prefix='/'):         url = self.__url + prefix         headers = {'X-Auth-Token'   : self.__token_id}         req = urllib2.Request(url, obj, headers)         opener = urllib2.urlopen(req)         content = json.loads(opener.read())         return content['return']       def saltCmd(self, params):         obj = urllib.urlencode(params)         obj, number = re.subn("argd", 'arg', obj)         res = self.postRequest(obj)         return res   def main():     #以下是用来测试saltAPI类的部分     sapi = saltAPI()     params = {'client':'local', 'fun':'test.ping', 'tgt':'*'}     #params = {'client':'local', 'fun':'test.ping', 'tgt':'某台服务器的key'}     #params = {'client':'local', 'fun':'test.echo', 'tgt':'某台服务器的key', 'arg1':'hello'}     #params = {'client':'local', 'fun':'test.ping', 'tgt':'某组服务器的组名', 'expr_form':'nodegroup'}     test = sapi.saltCmd(params)     print test   if __name__ == '__main__':     main()

测试效果

[root@syndic02 ~]# python salt-api.py [{u'syndic02': True, u'syndic02-minion02': True, u'syndic01': True, u'syndic01-minion02': True}] [root@syndic02 ~]#

以上只是一些基本的实例，salt-api还可以实现更多功能。

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