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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# netmap-csv.py
#
# Copyright 2015 Neil Williams <codehelp@debian.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
import os
import sys
import csv
import glob
import yaml
import argparse
def main(args):
"""
Two different formats are needed. The network dict reflects how the
XMLRPC will output the data and is a closer match to the spreadsheet
so that updates are easier to check.
The devices dict is the output equivalent to the device dictionary
import, output as device-specific Jinja2 files.
e.g.
{% extends 'vland.yaml' %}
{% set interfaces = ['eth0', 'eth1'] %}
{% set sysfs = {
'eth0': "/sys/devices/pci0000:00/0000:00:19.0/net/eth0",
'eth1': "/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/eth1"} %}
{% set mac_addr = {'eth0': "f0:de:f1:46:8c:21", 'eth1': "00:24:d7:9b:c0:8c"} %}
{% set tags = {'eth0': ['1G', '10G'], 'eth1': ['1G']} %}
{% set map = {'eth0': {'192.168.0.2': 5}, 'eth1': {'192.168.0.2': 7}} %}
All output occurs in the ./output/ directory.
"""
parser = argparse.ArgumentParser(description='network map CSV import')
parser.add_argument(
'--input', metavar='FILE', type=str,
dest='filename', required=True,
help='CSV file')
args = parser.parse_args()
if not args.filename:
parser.print_help()
return 0
rows = []
network = {}
devices = {}
errors = []
if not os.path.exists('./output'):
os.mkdir('output')
with open(args.filename, 'r') as csvfile:
content = csv.DictReader(csvfile)
for row in content:
rows.append(row)
for row in rows:
for key, value in row.items():
if key == 'Switch Address' and value and 'Switch Port' in row:
try:
int(row['Switch Port'])
except (ValueError, TypeError):
print >> sys.stderr, "Failed to parse 'Switch Port': '%s' as a number" % row['Switch Port']
print >> sys.stderr, "Skipping %s" % row['Device']
errors.append(row)
break
network.setdefault('switches', {})
network['switches'].setdefault(str(value), [])
data = {'port': row['Switch Port']}
data['device'] = {
'interface': row['Device eth port'],
'mac': row['MAC Addr'],
'sysfs': row['sysfs path'],
'hostname': row['Device'].replace('*', '')
}
network['switches'][str(value)].append(data)
elif key == 'Device' and value:
try:
int(row['Switch Port'])
except (ValueError, TypeError):
print >> sys.stderr, "Failed to parse 'Switch Port': '%s' as a number" % row['Switch Port']
print >> sys.stderr, "Skipping %s" % row['Device']
errors.append(row)
break
name = row['Device'].replace('*', '')
devices.setdefault(name, {})
devices[name]['extends'] = '' # needs to be Device Type
devices[name].setdefault('interfaces', [])
iface = row['Device eth port']
devices[name]['interfaces'].append(iface)
devices[name].setdefault('sysfs', {})
devices[name]['sysfs'][iface] = row['sysfs path']
devices[name].setdefault('mac_addr', {})
devices[name]['mac_addr'][iface] = row['MAC Addr']
devices[name].setdefault('tags', {})
devices[name]['tags'][iface] = row['Link Speeds'].split(', ')
devices[name].setdefault('map', {})
devices[name]['map'].setdefault(iface, {})
devices[name]['map'][iface].update({
row['Switch Address']: int(row['Switch Port'])
})
if devices:
outputs = glob.glob('./output/*.jinja2')
for stale in outputs:
os.unlink(stale)
for key, value in devices.items():
with open('./output/%s.jinja2' % key, 'w') as device_output:
device_output.write("{%% extends '%s' %%}\n" % value['extends'])
device_output.write("{%% set interfaces = %s %%}\n" % value['interfaces'])
device_output.write("{%% set sysfs = %s %%}\n" % value['sysfs'])
device_output.write("{%% set mac_addr = %s %%}\n" % value['mac_addr'])
device_output.write("{%% set tags = %s %%}\n" % value['tags'])
device_output.write("{%% set map = %s %%}\n" % value['map'])
with open('./output/output.yaml', 'w') as output:
yaml.dump(network, output, default_flow_style=False)
if errors:
print "There were errors!"
return 1
return 0
if __name__ == '__main__':
import sys
sys.exit(main(sys.argv))
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