作者：刘耀

QQ：22102107

SaltStack_Grains

Grains

grains是minion第一次启动的时候采集的静态数据，可以用在salt的模块和其他组件中。其实grains在每次的minion启动（重启）的时候都会采集，即向master汇报一次的。

1 . 查看minion的全部静态变量

[root@node1 ~]# salt '*' grains.items

node2.minion:

    ----------

    SSDs:

    cpu_flags:

        - fpu

        - de

        - pse

        - tsc

        - msr

        - pae

        - mce

        - cx8

        - apic

        - sep

        - mtrr

        - pge

        - mca

        - cmov

        - pse36

        - clflush

        - mmx

        - fxsr

        - sse

        - sse2

        - ht

        - syscall

        - nx

        - lm

        - up

        - rep_good

        - unfair_spinlock

        - pni

        - cx16

        - popcnt

        - hypervisor

        - lahf_lm

        - abm

    cpu_model:

        QEMU Virtual CPU version 1.2.0

    cpuarch:

        x86_64

    domain:

    fqdn:

        localhost

    fqdn_ip4:

        - 127.0.0.1

    fqdn_ip6:

        - ::1

    gpus:

        |_

          ----------

          model:

              GD 5446

          vendor:

              unknown

    host:

        localhost

    hwaddr_interfaces:

        ----------

        eth0:

            52:54:00:05:9e:b4

        lo:

            00:00:00:00:00:00

    id:

        node2.minion

    init:

        upstart

    ip4_interfaces:

        ----------

        eth0:

            - 10.105.61.227

        lo:

            - 127.0.0.1

    ip6_interfaces:

        ----------

        eth0:

        lo:

    ip_interfaces:

        ----------

        eth0:

            - 10.105.61.227

        lo:

            - 127.0.0.1

    ipv4:

        - 10.105.61.227

        - 127.0.0.1

    ipv6:

    kernel:

        Linux

    kernelrelease:

        2.6.32-504.el6.x86_64

    locale_info:

        ----------

        defaultencoding:

            UTF8

        defaultlanguage:

            en_US

        detectedencoding:

            UTF-8

    localhost:

        node2

    lsb_distrib_codename:

        Final

    lsb_distrib_id:

        CentOS

    lsb_distrib_release:

        6.6

    machine_id:

        9293b91f6111b402930f04c20000000f

    master:

        115.29.51.8

    mdadm:

    mem_total:

        996

    nodename:

        node2

    num_cpus:

        1

    num_gpus:

        1

    os:

        CentOS

    os_family:

        RedHat

    osarch:

        x86_64

    oscodename:

        Final

    osfinger:

        CentOS-6

    osfullname:

        CentOS

    osmajorrelease:

        6

    osrelease:

        6.6

    osrelease_info:

        - 6

        - 6

    path:

        /sbin:/usr/sbin:/bin:/usr/bin

    ps:

        ps -efH

    pythonexecutable:

        /usr/bin/python2.6

    pythonpath:

        - /usr/bin

        - /usr/lib64/python26.zip

        - /usr/lib64/python2.6

        - /usr/lib64/python2.6/plat-linux2

        - /usr/lib64/python2.6/lib-tk

        - /usr/lib64/python2.6/lib-old

        - /usr/lib64/python2.6/lib-dynload

        - /usr/lib64/python2.6/site-packages

        - /usr/lib/python2.6/site-packages

        - /usr/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg-info

    pythonversion:

        - 2

        - 6

        - 6

        - final

        - 0

    saltpath:

        /usr/lib/python2.6/site-packages/salt

    saltversion:

        2015.5.8

    saltversioninfo:

        - 2015

        - 5

        - 8

        - 0

    selinux:

        ----------

        enabled:

            False

        enforced:

            Disabled

    server_id:

        556532862

    shell:

        /bin/bash

    virtual:

        kvm

    zmqversion:

        3.2.5

2.显示grains的变量名称

[root@node1 ~]# salt '*' grains.ls

node2.minion:

    - SSDs

    - cpu_flags

    - cpu_model

    - cpuarch

    - domain

    - fqdn

    - fqdn_ip4

    - fqdn_ip6

    - gpus

    - host

    - hwaddr_interfaces

    - id

    - init

    - ip4_interfaces

    - ip6_interfaces

    - ip_interfaces

    - ipv4

    - ipv6

    - kernel

    - kernelrelease

    - locale_info

    - localhost

    - lsb_distrib_codename

    - lsb_distrib_id

    - lsb_distrib_release

    - machine_id

    - master

    - mdadm

    - mem_total

    - nodename

    - num_cpus

    - num_gpus

    - os

    - os_family

    - osarch

    - oscodename

    - osfinger

    - osfullname

    - osmajorrelease

    - osrelease

    - osrelease_info

    - path

    - ps

    - pythonexecutable

    - pythonpath

    - pythonversion

    - saltpath

    - saltversion

    - saltversioninfo

    - selinux

    - server_id

    - shell

    - virtual

    - zmqversion

3.显示某一个变量

[root@node1 ~]# salt '*' grains.item os

node2.minion:

    ----------

    os:

        CentOS

获取的是键值对 os：centos

[root@node1 ~]# salt '*' grains.item num_cpus

node2.minion:

----------

num_cpus:

    1

4.直接获取内容

[root@node1 ~]# salt '*' grains.get os

node2.minion:

    CentOS

5.-G的使用

-G就是grains

[root@node1 ~]# salt -G 'os:CentOs' test.ping

node2.minion:

    True

如果os的centos的 执行test.ping

6.自定义grains

在minion端修改配置文件：

	加入以下内容

	grains:

	  roles: nginx

	  env: prod

	重启服务

在master端执行：

[root@node1 ~]# salt -G 'env:prod' test.ping

node2.minion:

True

7.基于文件的grains

在minion端

新建grains文件

touch  /etc/salt/grains

写入以下内容：

centos: node2

重启服务

master端执行：

[root@node1 ~]# salt -G 'centos:node2' test.ping

node2.minion:

True

不重启minion端 刷新grains

1.修改minion配置文件

[root@node2 ~]# cat /etc/salt/grains

centos: node2

test: node2

2.master端刷新

[root@node1 ~]# salt '*' saltutil.sync_grains

node2.minion:

3.测试

[root@node1 ~]# salt -G 'test:node2' test.ping

node2.minion:

True

pillar

给minion定义想要的数据

配置管理：

1.修改master配置文件

pillar_roots:

  base:

    - /etc/salt/pillar

创建

mkdir /etc/salt/pillar

进入

cd /etc/salt/pillar/

vim top.sls

base:

  '*':

    - init.rsyslog

mkdir init

cd init/

vim rsyslog.sls

{% if grains['osfinger'] == 'CentOS-6' %}

syslog:rsyslog

{% elif granins['osfinger'] == 'CentOS-5' %}

syslog: syslog

{{ endif }}