3.saltstack的grains和pillar学习笔记

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 }}