通過Python利用saltstack進行生成服務器資產清單
linux-node0.oldboyedu.com 192.168.1.30 安裝salt-master,salt-minion
linux-node1.oldboyedu.com 192.168.1.31 安裝salt-minion
這裏主要用到saltstack的grains,就是saltstack minion端生成的一些靜態信息,比如CPU,內存,主機名什麽的,而這些就是我們所需要的
執行salt \* grains.items,會打印一大堆的默認抓取的信息,其中一部分,如下
我們當然只挑我們需要的,操作如下
獲取主機名
salt linux-node1.oldboyedu.com grains.item host
獲取IP地址
salt linux-node1.oldboyedu.com grains.item ipv4
獲取CPU核數
salt \* grains.item num_cpus
以此類推,根據自己所需,提取~~~
值得註意的是,grains信息裏面並沒有硬盤信息,所以還需通過disk.usage這個選項,得到我們所需的硬盤信息
執行salt linux-node1.oldboyedu.com disk.usage
其中1K-blocks即我們所需的硬盤信息,根據需求只需要盤/,所以後面就會計算這個盤的配額
11.py
#coding=utf-8
import salt.client as sc
import json
###salt調用
local = sc.LocalClient()
###目標主機指定
tgt = "*"
###獲取grains,disk信息
grains = local.cmd(tgt,"grains.items")
diskusage = local.cmd(tgt,"disk.usage")
###主要應用列表即文件開頭
app_name = ["tomcat","zookeeper","redis","mysql","nginx"]
cols = "Hostname,IP address,RAM(GB),CPU num,Operation,DATA /(GB),project"
###打開一個.csv文件,以便寫入
ret_file = open("ret.csv","w")
###首先寫入開頭,有點字段名的意思
ret_file.write(cols + "\n")
try:
for i in grains.keys():
###打印信息可註釋掉
print grains[i]["nodename"]
print "ipv4" + ":" ,grains[i]["ipv4"]
print "mem_total" + ":" , grains[i]["mem_total"] / 1024 + 1
print "num_cpus" + ":" , grains[i]["num_cpus"]
print "osfullname" + ":" , grains[i]["osfullname"]
print "release" + ":" , grains[i]["lsb_distrib_id"]
###萬一主機沒有/ 數據盤1048576是1024x102
if "/" not in diskusage[i]:
print "diskusage" + ":" + "have no /data disk"
else:
data_vol = int(diskusage[i]["/"]["1K-blocks"])
print "diskusage" + ":" , data_vol / 1048576
###去掉127.0.0.1這個地址
ipv4 = str(grains[i]["ipv4"]).replace(", '127.0.0.1'","")
###因為一些歷史遺留問題,這裏取得不是主機名,而是salt-minion的id名,用以判斷主要應用
hostname = grains[i]["id"]
ipv4 = str(grains[i]["ipv4"]).replace(", '127.0.0.1'","")
ipv4 = ipv4.replace(",","and")
mem = grains[i]["mem_total"] / 1024 + 1
num_cpu = grains[i]["num_cpus"]
OS = grains[i]["osfullname"] + grains[i]["lsb_distrib_id"]
if "/" not in diskusage[i]:
disk_data = "None"
else:
disk_data = data_vol / 1048576
###通過minion ID名來判斷主要運行服務,比如xx-mysql-1,則運行mysql
for j in app_name:
if j in hostname.lower():
app = j
break
else:
app = "undefined"
c = ","
###連接並寫入
line = hostname + c + ipv4 + c + str(mem) + c + str(num_cpu) + c + str(OS) + c + str(disk_data) + c + app
ret_file.write(line + "\n")
except Exception,e:
print "Exception:\n",e
finally:
ret_file.close()
執行salt \* grains.items,發現"lsb_distrib_id"代替了原來的"lsb_distrib_release",所以上面用了"lsb_distrib_id"
[root@linux-node0 ~]# python 11.py
linux-node0
ipv4: ['127.0.0.1', '192.168.1.30', '192.168.1.38']
mem_total: 1
num_cpus: 1
osfullname: CentOS Linux
release: CentOS Linux
diskusage: 16
linux-node1
ipv4: ['127.0.0.1', '192.168.1.31', '192.168.122.1']
mem_total: 3
num_cpus: 1
osfullname: CentOS Linux
release: CentOS Linux
diskusage: 16
執行後在同一目錄下生成ret.csv文件,打開如下:
通過Python利用saltstack進行生成服務器資產清單