Saltstack series: Saltstack's Grains and pillar

Uses of grains and pillar:

Grains: Basic data information for storing minion;

Pillar: Used to store the data information that master assigns to minion.

Storage areas for grains and pillar:

Grains: Metadata is stored on the Minion side;

Pillar: Metadata is stored on the master side.

Update methods for grains and pillar:

Grains: Update at minion startup;

Pillar: Metadata is stored on the master side and refreshed with saltutil.refresh_pillar for greater efficiency and flexibility.

Simple use of 1.Grains

(1. Print all items values

[[email protected] ~]# salt  ' Node2 '  grains.itemsnode2:    ------- ---    SSDs:    biosreleasedate:         05/20/2014    biosversion:        6.00     cpu_flags:        - fpu         - vme        - de         - pse        - tsc         - msr        - pae         - mce        -  cx8        - apic         - sep        - mtrr        -  pge        - mca         - cmov        - pat         - pse36        - clflush         - dts        - mmx         - fxsr        - sse         - sse2        -  ss        - ht         - syscall        - nx         - rdtscp        - lm        -  constant_tsc        - arch_perfmon         - pebs        - bts         - xtopology        - tsc _reliable        - nonstop_tsc         - aperfmperf        - unfair_spinlock         - pni        -  pclmulqdq        - ssse3         - cx16        - pcid         - sse4_1        - sse4_2         - x2apic        - popcnt         - xsave        - avx         - f16c        - hypervisor         - lahf_lm        -  arat        - epb         - pln        - pts         - dts        - fsgsbase         - smep    cpu_model:         intel (R)  corE (TM)  i3-3220 CPU @ 3.30GHz    cpuarch:         x86_64    domain:    fqdn:         node2    fqdn_ip4:    fqdn_ip6:     gpus:        |_           ----------          model:               SVGA II Adapter           vendor:               unknown    host:         node2    hwaddr_interfaces:        --------- -        eth0:             00:50:56:25:fc:e1        lo:             00:00:00:00:00:00    id:         node2    init:        upstart     ip4_interfaces:        ----------         eth0:            -  192.168.64.129        lo:             - 127.0.0.1    ip6_interfaces:         ----------        eth0:        &nbsP;    - fe80::250:56ff:fe25:fce1        lo:             - ::1    ip_ interfaces:        ----------         eth0:            - 192.168.64.129             - fe80::250:56ff:fe25:fce1         lo:             - 127.0.0.1            - ::1     ipv4:        - 127.0.0.1         - 192.168.64.129    ipv6:         - ::1        - fe80::250:56ff:fe25:fce1     kernel:        linux    kernelrelease:         2.6.32-431.el6.x86_64    locale_info:         ----------        defaultencoding:             UTF8         defaultlanguage:            zh_ cn        detectedencoding:             UTF-8    localhost:         node2    lsb_distrib_codename:         final     lsb_distrib_id:        centos    lsb_distrib_ release:        6.5    machine_id:         48888410126c41ba9627303a00000016    manufacturer:         VMware, Inc.    master:         192.168.64.128    mdadm:    mem_ total:        482    nodename:         node2    num_cpus:         2    num_gpus:        1     os:        CentOS    os_family:        &nbSp redhat    osarch:        x86_64     oscodename:        Final    osfinger:         CentOS-6    osfullname:         CentOS    osmajorrelease:         6    osrelease:        6.5     osrelease_info:        - 6         - 5    path:        / sbin:/usr/sbin:/bin:/usr/bin    productname:         VMware Virtual Platform    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    pythonversion:        - 2         - 6        - 6         - final        - 0     saltpath:        /usr/lib/python2.6/site-packages/salt     saltversion:        2015.5.3     saltversioninfo:        - 2015         - 5        - 3         - 0    selinux:         ----------        enabled:             False        enforced:             Disabled    serialnumber:         vmware-56 4d 02 ba 6b 2e 3c 31-1c c4 d6 a2 66  e1 4a d2    server_id:         234795131    shell:        /bin/bash     virtual:        vmware    zmqversion:         3.2.5

(2. Print IP information and Mac information for the eth0 NIC of the Node2 node

[[email protected] ~]# Salt ' node2 ' grains.get ip4_interfaces:eth0 node2:-192.168.64.129[[email protected] ~]# salt ' Node2 ' Grains.get hwaddr_interfaces:eth0node2:00:50:56:25:fc:e1

(3. Print Node2 node System Information

#获取系统信息 [[email protected] ~]# Salt ' node2 ' grains.get osnode2:centos# get the system version [[email protected] ~]# salt ' node2 ' grains. Get osrelease node2:6.5# Get kernel version [[email protected] ~]# Salt ' node2 ' grains.get kernelreleasenode2:2.6.32-431.el 6.x86_64

Simple use of 2.Pallir

#需要创建目录 [[email protected] pillar]# pwd/srv/pillar[[email protected] pillar]#  TREE -N&NBSP, .... ├── info.sls└── top.sls0 directories, 2 files# Create an info file for testing  [[email  protected] pillar]# cat info.sls  #判断系统是否为CentOS {% if grains.os ==  ' CentOS '  %} #如果为CentOS, print Nginx version  [content customization]nginx: nginx-1.4.7 {% endif %}# This file must be top.sls[[email protected] pillar]# cat top.sls base:   ' Node2 ':      #对应info. sls file name     - info# Refresh Cache  [Display True indicates a successful refresh]       [[email protected] pillar]# salt  ' Node2 '  saltutil.refresh_ pillarnode2:    true  #测试结果  [If the information displayed for the info file indicates success][[email protected]  pillar]# salt  ' Node2 '  pillar.get nginxnode2:    nginx-1.4.7

It is important to note here that Pillar uses the Yaml language, and Saltstack uses Python to parse Yaml, and all that pillar is easy to understand and learn if you have a Python language ...

This article is from the "ˉt, Stand Wentao ┃﹎" blog, please be sure to keep this source http://hypocritical.blog.51cto.com/3388028/1686310

Saltstack series: Saltstack's Grains and pillar