gen_inventory.py
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#!/usr/bin/python
# -*- coding: UTF-8 -*-
""""
generate ansible inventory files from auto-deploy: http://git.yoho.cn/yohoops/auto_deploy/tree/master/scripts/iptable
"""
import json
import os
from subprocess import call
from jinja2 import Environment, FileSystemLoader
import collections
import time
import sys
# clone deploy project to local
HOME = os.path.expanduser("~")
PATH = os.path.join(HOME, ".tmp/auto_deploy")
if os.path.isdir(PATH):
call("echo 'start to remove local git files'", shell=True)
call("rm -rf %s" % PATH, shell=True)
call("mkdir -p %s" % PATH, shell=True)
call("git clone --recursive git@git.yoho.cn:yohoops/auto_deploy.git %s" % PATH, shell=True)
# get iptables info from git files.
azs_mappings = {"qcloud": "az1", "aws": "aws"}
host_group = {"yoho_gateway": "java-gateway",
"yoho_users": "java-users",
"yohobuy_resources": "java-resources",
"yohobuy_order" : "java-order",
"yohobuy_promotion": "java-promotion",
"yohobuy_product": "java-product",
"yoho_message": "java-message",
"yoho_sns": "java-sns",
"yohobuy_brower": "java-brower",
"uic": "java-uic",
"yohobuy_wechat": "java-wechat",
"yoho_erp_gateway": "java-erpgateway",
"yohobuy_activity": "java-activity",
"yohobuy_bigdata": "java-bigdata",
"yohobuy_risk": "java-risk",
"yohobuy_union": "java-union",
"yoho_search_service": "search-service",
"ufo_platform": "java-ufo-platform",
"yohoufo_fore": "java-ufo-fore",
"yoho_social": "java-social",
"platform_cms": "java-platform-cms"
}
# all available zone groups
all_groups = {}
for _az in azs_mappings.keys():
groups = {}
all_groups[azs_mappings[_az]] = groups
file = open(os.path.join(PATH, "scripts/iptable/", _az, "app-iptable.sh"), 'r')
for line in file:
for deploy_prj_name in host_group.keys():
if line.strip().startswith(deploy_prj_name + "_" + _az):
g_hosts = []
groups[host_group[deploy_prj_name]] = g_hosts
i_1 = line.index("(")
i_2 = line.index(")")
sub = line[i_1 + 1 : i_2]
for user_ip in sub.split("master@"):
if user_ip.strip() != '':
g_hosts.append(user_ip.strip())
file.close()
print("get all inventory info success. \n")
print(all_groups)
# generate az inventory files
temp_dir = os.path.join(os.getcwd(), "scripts", "inventory", "templates")
env = Environment(loader=FileSystemLoader(temp_dir))
print("load jinj2 template env at dir: %s" %temp_dir)
for _az in azs_mappings.keys():
az = azs_mappings[_az]
# backup old file and open new file
hosts = os.path.join("./inventories", az, "hosts")
#call("mv %s %s" % (hosts, os.path.join("./inventories", az, "hosts.bak")), shell=True)
file = open(hosts, 'w')
# write template, sort the dict by key
sorted_dict = collections.OrderedDict(sorted(all_groups[az].items(), key=lambda t: t[0]))
#add time
ntime = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))
template = env.get_template(os.path.basename('inventory-%s.j2' % az))
file.write(template.render(groups = sorted_dict , time_now = ntime))
file.close()
print "success generate ansible inventory files ! ."