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#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
This script generates a juju deployer bundle based on
scenario name, and lab config file.
Parameters:
-s, --scenario : scenario name
-l, --lab : lab config file
"""
from optparse import OptionParser
from jinja2 import Environment, FileSystemLoader
from distutils.version import LooseVersion, StrictVersion
import os
import subprocess
import random
import yaml
import sys
#
# Parse parameters
#
parser = OptionParser()
parser.add_option("-s", "--scenario", dest="scenario", help="scenario name")
parser.add_option("-l", "--lab", dest="lab", help="lab config file")
(options, args) = parser.parse_args()
scenario = options.scenario
labconfig_file = options.lab
#
# Set Path and configs path
#
scenarioconfig_file = 'default_deployment_config.yaml'
TPL_DIR = os.path.dirname(os.path.abspath(__file__))+'/config_tpl/juju2/bundlek8_tpl'
#
# 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)
#
# Templates functions
#
def unit_qty():
"""Return quantity of units to deploy"""
global config
if config['os']['ha']['mode'] == 'ha':
return config['os']['ha']['cluster_size']
else:
return 1
def unit_ceph_qty():
"""Return size of the ceph cluster"""
global config
if config['os']['ha']['mode'] == 'ha':
return config['os']['ha']['cluster_size']
else:
if config['opnfv']['units'] >= 3:
return config['os']['ha']['cluster_size']
else:
return 2
def unit_scaleio_qty():
"""Return size of the scaleio cluster"""
return 3
def to_select(qty=False):
"""Return a random list of machines numbers to deploy"""
global config
if not qty:
qty = config['os']['ha']['cluster_size'] if \
config['os']['ha']['mode'] == 'ha' else 1
if config['os']['hyperconverged']:
return random.sample(range(0, config['opnfv']['units']), qty)
else:
return random.sample(range(0, qty), qty)
def get_password(key, length=16, special=False):
"""Return a new random password or a already created one"""
global passwords_store
if key not in passwords_store.keys():
alphabet = "abcdefghijklmnopqrstuvwxyz"
upperalphabet = alphabet.upper()
char_list = alphabet + upperalphabet + '0123456789'
pwlist = []
if special:
char_list += "+-,;./:?!*"
for i in range(length):
pwlist.append(char_list[random.randrange(len(char_list))])
random.shuffle(pwlist)
passwords_store[key] = "".join(pwlist)
return passwords_store[key]
#
# Config import
#
# Load scenario Config
config = load_yaml(scenarioconfig_file)
# Load lab Config
config.update(load_yaml(labconfig_file))
# We transform array to hash for an easier work
config['opnfv']['spaces_dict'] = dict()
for space in config['opnfv']['spaces']:
config['opnfv']['spaces_dict'][space['type']] = space
config['opnfv']['storage_dict'] = dict()
for storage in config['opnfv']['storage']:
config['opnfv']['storage_dict'][storage['type']] = storage
#
# Parse scenario name
#
# Set default scenario name
if not scenario:
scenario = "k8-nosdn-baremetal-core"
# Parse scenario name
try:
sc = scenario.split('-')
(sdn, features, hamode) = sc[1:4]
features = features.split('_')
if len(sc) > 4:
extra = sc[4].split('_')
else:
extra = []
except ValueError as err:
print('Error: Bad scenario name syntax, use '
'"k8-nosdn-baremetal-core" format')
sys.exit(1)
#
# Update config with scenario name
#
if 'dpdk' in features:
config['os']['network']['dpdk'] = True
if 'lb' in features:
config['k8']['feature']['loadbalancer'] = True
# change ha mode
config['k8']['network']['controller'] = sdn
# Set beta option from extra
if 'hugepages' in extra:
config['os']['beta']['huge_pages'] = True
if 'lb' in extra:
config['k8']['feature']['loadbalancer'] = True
if 'mitaka' in extra:
config['os']['release'] = 'mitaka'
if 'xenial' in extra:
config['ubuntu']['release'] = 'xenial'
#
# 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('bundle.yaml')
# Add functions
env.globals.update(get_password=get_password)
env.globals.update(unit_qty=unit_qty)
env.globals.update(unit_ceph_qty=unit_ceph_qty)
env.globals.update(unit_scaleio_qty=unit_scaleio_qty)
env.globals.update(to_select=to_select)
# 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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