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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# kpov_random_helpers should be imported by add_assignment.py
# Poglej nek film na nekem določenem URL.
# (?md5 vsota filma?)
# Nastavi nek računalnik tako, da bo izvajal NAT.
#TODO: finish this
instructions = {
'si':u"""
Postavi dva navidezna računalnika - SimpleArbiter z diskom simpleArbiter
ter NATServer. NATServer naj ima dva omrežna vmesnika - z enim naj bo povezan
na simpleArbiter, z drugim pa na Internet. Na NATServer z ukazom ifconfig in z datoteko /etc/network/interfaces skonfiguriraj omrene
vmesnike tako da bo en vmesnik povezan v WAN (Internet) in en vmesnik na LAN (simpleArbiter). SimpleArbiter skonfiguriraj tako, da
bo za privzeti prehod uporabljal NATServer. Nastavi DNS (etc/resolv.conf). e e ni, omogoi posredovanje IP naslovov. Nastavi NAT
z uporabo paketa iptables. Na simpleArbiter z vlc preberi naslov, na katerem si lahko ogledaš kratek filmček.
"""
}
computers = {
'maliNetworkManager': {
'disks': [
{ 'name': 'maliNetworkManager',
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'maliBrezNetworkManager': {
'disks': [
{ 'name': 'maliBrezNetworkManager',
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'SimpleArbiter': {
'disks': [
{ 'name': 'simpleArbiterDhcp',
# attempt automount
},
#{ 'name': 'CDROM',
# 'options': {'readonly': True},
# 'parts': [{'dev': 'b1', 'path': '/cdrom'}],
#},
],
'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}],
'flavor': 'm1.tiny',
'config_drive': False
}
}
networks = { 'net1': {'public': False}, 'test-net': {'public': True} }
#ne potrebujemo dnsjev in ip za malibreznewtork manager?
params_meta = {
# 'IP_NM': {'descriptions': {'si': 'Naslov maliNetworkManager'}, 'w': False, 'public':True, 'type': 'IP', 'generated': True},
# 'DNS_NM': {'descriptions': {'si': 'DNS za maliNetworkManager'}, 'w': False, 'public':True, 'type': 'IP', 'generated': True},
'IP_simple': {'descriptions': {'si': 'Naslov SimpleArbiter'}, 'w': False, 'public': True, 'type': 'IP', 'generated': True},
'IP_NAT': {'descriptions': {'si': 'Naslov NAT'} 'w': False, 'public': True, 'type': 'IP', 'generated': True },
# 'DNS_static': {'descriptions': {'si': 'DNS za maliBrezNetworkManager'}, 'w': False, 'public': True, 'type': 'IP', 'generated': True},
}
def task(IP_NM, DNS_NM, IP_static, DNS_static):
import pxssh
import pexpect
results = dict()
peer_user = 'student'
peer_passwd = 'vaje'
sA = pxssh.pxssh()
sB = pxssh.pxssh()
sA.login(IP_NM, peer_user, peer_passwd)
sB.login(IP_static, peer_user, peer_passwd)
# sA
# make sure NM is not handling eth0
results['NM_nmcli'] = sA.run('nmcli d')
results['NM_nslookup'] = sA.run('nslookup www.arnes.si')
# sB
# check whether NM is handling eth0
results['static_nmcli'] = sB.run('nmcli d')
results['static_nslookup'] = sB.run('nslookup www.arnes.si')
sA.logout()
sB.logout()
return results
def gen_params(user_id, params_meta):
params = dict()
r = random.Random(user_id)
# IP_NM, DNS_NM, IP_static, DNS_static)
# dns_servers = ['193.2.1.66', '193.2.1.72', '8.8.8.8', '8.8.4.4', '208.67.222.222', '208.67.220.220']
net = kpov_random_helpers.IPv4_net_gen(r, 254, true, false)
# params['DNS_NM'] = r.choice(dns_servers)
params['IP_NAT'] = net
# params['IP_NM']
params['IP_simple'] = kpov_random_helpers.IPv4_addr_gen(r, net, 1)
# params['DNS_static'] = r.choice(dns_servers)
return params
def task_check(results, params):
import re
score = -9
if results['NM_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_NM'])) > -1:
score += 3
if results['static_nslookup'].find('Server:\t\t{0}\r'.format(params['DNS_static'])) > -1:
score += 3
if re.search(r'eth0 +802-.*connected', results['NM_nmcli']):
score += 2
if not re.search(r'eth0 +802-.*connected', results['static_nmcli']):
score += 2
score = 0
return score
def prepare_disks(templates, params):
# d = templates['simpleArbiterDhcp']
pass
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