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#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
This script generates a maas deployer config based on lab config file.
Parameters:
-l, --lab : lab config file
"""
from optparse import OptionParser
from jinja2 import Environment, FileSystemLoader
import os
import yaml
from pprint import pprint as pp
import socket
import fcntl
import struct
#
# Parse parameters
#
parser = OptionParser()
parser.add_option("-l", "--lab", dest="lab", help="lab config file")
(options, args) = parser.parse_args()
labconfig_file = options.lab
#
# Set Path and configs path
#
# Capture our current directory
TPL_DIR = os.path.dirname(os.path.abspath(__file__))+'/config_tpl/maas_tpl'
HOME = os.environ['HOME']
USER = os.environ['USER']
#
# Prepare variables
#
# Prepare a storage for passwords
passwords_store = dict()
#
# Local Functions
#
def load_yaml(filepath):
"""Load YAML file"""
with open(filepath, 'r') as stream:
try:
return yaml.load(stream)
except yaml.YAMLError as exc:
print(exc)
def get_ip_address(ifname):
"""Get local IP"""
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
return socket.inet_ntoa(fcntl.ioctl(
s.fileno(),
0x8915, # SIOCGIFADDR
struct.pack('256s', bytes(ifname.encode('utf-8')[:15]))
)[20:24])
#
# Config import
#
# Load scenario Config
config = load_yaml(labconfig_file)
config['opnfv']['spaces_dict'] = dict()
for space in config['opnfv']['spaces']:
config['opnfv']['spaces_dict'][space['type']] = space
config['os'] = {'home': HOME,
'user': USER,
'brAdmIP': get_ip_address(config['opnfv']['spaces_dict']
['admin']['bridge'])}
# pp(config)
#
# Transform template to bundle.yaml according to config
#
# Create the jinja2 environment.
env = Environment(loader=FileSystemLoader(TPL_DIR),
trim_blocks=True)
template = env.get_template('deployment.yaml')
# Render the template
output = template.render(**config)
# Check output syntax
try:
yaml.load(output)
except yaml.YAMLError as exc:
print(exc)
# print output
print(output)
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