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#!/usr/bin/env python3
import logging
import subprocess
import time
import argparse
import ipaddress
from json import dumps
from requests import get
from requests.exceptions import MissingSchema, InvalidSchema, InvalidURL, ConnectionError, ConnectTimeout
def validate_url(url):
'''Helper function to perform --urlves input param validation'''
logger = logging.getLogger("urllib3")
logger.setLevel(logging.WARNING)
try:
get(url, timeout=0.001)
except (MissingSchema, InvalidSchema, InvalidURL):
raise argparse.ArgumentTypeError(f'{url} is not a valid URL')
except (ConnectionError, ConnectTimeout):
pass
return url
def validate_ip(ip):
'''Helper function to validate input param is a vaild IP address'''
try:
ip_valid = ipaddress.ip_address(ip)
except ValueError:
raise argparse.ArgumentTypeError(f'{ip} is not a valid IP address')
else:
return ip_valid
def get_parser():
'''Process input arguments'''
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers(title='Subcommands', dest='subcommand')
# Build command parser
subparsers.add_parser('build', help='Build simulator image')
# Bootstrap command parser
parser_bootstrap = subparsers.add_parser('bootstrap', help='Bootstrap the system')
parser_bootstrap.add_argument('--count', help='Instance count to bootstrap', type=int, metavar='INT', default=1)
parser_bootstrap.add_argument('--urlves', help='URL of the VES collector', type=validate_url, metavar='URL', required=True)
parser_bootstrap.add_argument('--ipfileserver', help='Visible IP of the file server (SFTP/FTPS) to be included in the VES event',
type=validate_ip, metavar='IP', required=True)
parser_bootstrap.add_argument('--typefileserver', help='Type of the file server (SFTP/FTPS) to be included in the VES event',
type=str, choices=['sftp', 'ftps'], required=True)
parser_bootstrap.add_argument('--ipstart', help='IP address range beginning', type=validate_ip, metavar='IP', required=True)
# Start command parser
parser_start = subparsers.add_parser('start', help='Start instances')
parser_start.add_argument('--count', help='Instance count to start', type=int, metavar='INT', default=1)
# Stop command parser
parser_stop = subparsers.add_parser('stop', help='Stop instances')
parser_stop.add_argument('--count', help='Instance count to stop', type=int, metavar='INT', default=1)
# Trigger command parser
parser_trigger = subparsers.add_parser('trigger', help='Trigger one single VES event from each simulator')
parser_trigger.add_argument('--count', help='Instance count to trigger', type=int, metavar='INT', default=1)
# Trigger-custom command parser
parser_triggerstart = subparsers.add_parser('trigger_custom', help='Trigger one single VES event from specific simulators')
parser_triggerstart.add_argument('--triggerstart', help='First simulator id to trigger', type=int,
metavar='INT', required=True)
parser_triggerstart.add_argument('--triggerend', help='Last simulator id to trigger', type=int,
metavar='INT', required=True)
# Status command parser
parser_status = subparsers.add_parser('status', help='Status')
parser_status.add_argument('--count', help='Instance count to show status for', type=int, metavar='INT', default=1)
# Clean command parser
subparsers.add_parser('clean', help='Clean work-dirs')
# General options parser
parser.add_argument('--verbose', help='Verbosity level', choices=['info', 'debug'],
type=str, default='debug')
return parser
class MassPnfSim():
log_lvl = logging.INFO
def __init__(self, args):
self.args = args
self.logger = logging.getLogger(__name__)
self.logger.setLevel(self.log_lvl)
def bootstrap(self):
self.logger.info("Bootstrapping PNF instances")
start_port = 2000
ftps_pasv_port_start = 8000
ftps_pasv_port_num_of_ports = 10
ftps_pasv_port_end = ftps_pasv_port_start + ftps_pasv_port_num_of_ports
for i in range(self.args.count):
self.logger.info(f"PNF simulator instance: {i}")
# The IP ranges are in distance of 16 compared to each other.
# This is matching the /28 subnet mask used in the dockerfile inside.
instance_ip_offset = i * 16
ip_properties = [
'subnet',
'gw',
'PnfSim',
'ftps',
'sftp'
]
ip_offset = 0
ip = {}
for prop in ip_properties:
ip.update({prop: str(self.args.ipstart + ip_offset + instance_ip_offset)})
ip_offset += 1
self.logger.debug(f'Instance #{i} properties:\n {dumps(ip, indent=4)}')
PortSftp = start_port + 1
PortFtps = start_port + 2
start_port += 2
foldername = f"pnf-sim-lw-{i}"
completed = subprocess.run('mkdir ' + foldername, shell=True)
self.logger.info(f'\tCreating folder: {completed.stdout}')
completed = subprocess.run(
'cp -r pnf-sim-lightweight/* ' +
foldername,
shell=True)
self.logger.info(f'\tCloning folder: {completed.stdout}')
composercmd = " ".join([
"./simulator.sh compose",
ip['gw'],
ip['subnet'],
str(i),
self.args.urlves,
ip['PnfSim'],
str(self.args.ipfileserver),
self.args.typefileserver,
str(PortSftp),
str(PortFtps),
ip['ftps'],
ip['sftp'],
str(ftps_pasv_port_start),
str(ftps_pasv_port_end)
])
self.logger.debug(f"Script cmdline: {composercmd}")
completed = subprocess.run(
'set -x; cd ' +
foldername +
'; ' +
composercmd,
shell=True)
self.logger.info(f'Cloning: {completed.stdout}')
ftps_pasv_port_start += ftps_pasv_port_num_of_ports + 1
ftps_pasv_port_end += ftps_pasv_port_num_of_ports + 1
self.logger.info(f'Done setting up instance #{i}')
def build(self):
self.logger.info("Building simulator image")
completed = subprocess.run('set -x; cd pnf-sim-lightweight; ./simulator.sh build ', shell=True)
self.logger.info(f"Build docker image: {completed.stdout}")
def clean(self):
completed = subprocess.run('rm -rf ./pnf-sim-lw-*', shell=True)
self.logger.info(f'Deleting: {completed.stdout}')
def start(self):
for i in range(self.args.count):
foldername = f"pnf-sim-lw-{i}"
completed = subprocess.run(
'set -x ; cd ' +
foldername +
"; bash -x ./simulator.sh start",
shell=True)
self.logger.info(f'Starting: {completed.stdout}')
time.sleep(5)
def status(self):
for i in range(self.args.count):
foldername = f"pnf-sim-lw-{i}"
completed = subprocess.run(
'cd ' +
foldername +
"; ./simulator.sh status",
shell=True)
self.logger.info(f'Status: {completed.stdout}')
def stop(self):
for i in range(self.args.count):
foldername = f"pnf-sim-lw-{i}"
completed = subprocess.run(
'cd ' +
foldername +
f"; ./simulator.sh stop {i}",
shell=True)
self.logger.info(f'Stopping: {completed.stdout}')
def trigger(self):
self.logger.info("Triggering VES sending:")
for i in range(self.args.count):
foldername = f"pnf-sim-lw-{i}"
completed = subprocess.run(
'cd ' +
foldername +
"; ./simulator.sh trigger-simulator",
shell=True)
self.logger.info(f'Status: {completed.stdout}')
def trigger_custom(self):
self.logger.info("Triggering VES sending by a range of simulators:")
for i in range(self.args.triggerstart, self.args.triggerend+1):
foldername = f"pnf-sim-lw-{i}"
self.logger.info(f"Instance being processed: {i}")
completed = subprocess.run(
'cd ' +
foldername +
"; ./simulator.sh trigger-simulator",
shell=True)
self.logger.info(f'Status: {completed.stdout}')
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