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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# TODO: dokoncaj!
# kpov_random_helpers should be imported by add_assignment.py
instructions = {
'si':u"""
Postavi štiri navidezne računalnike - simpleArbiter, DHCP_server,
BootableClientA ter BootableClientB. Na simpleArbiter preberi naslove IP_GW, IP_DHCP,
IP_B ter najdi datoteko A.
Na DHCP_server postavi DHCP strežnik s pomočjo ISC dhcp 3 na naslovu IP_DHCP.
SimpleArbiter naj dobi IP_GW. DHCP_server naj ga uporabi kot gateway.
Če se zaganja BootableClientB, naj se sistem zažene z live ISO in dobi svoj IP.
Če se zaganja katerikoli drug, naj se sistem zažene v datoteko z imenom A.
Tako BootableClientA kot BootableClientB naj bosta brez diskov.
"""
}
instructions_en= {
Set up 4 virtual computers - simpleArbiter, DHCP_server, BootableClientA and
BootableClientB. The simpleArbiter reads the address IP_GW, IP_DHCP and finds
the file A.
On the DHCP_server set up a DHCP server with the help of ISC dhcp 3 on the address IP_DHCP.
Get SimpleArbiter to find IP_GW. Make the DHCP_server use it as a gateway.
If there is BootableClientB loading, make the system start-up with a live ISO and make it get hit own IP.
If there is anyone else loading, make the system load the file with the name A.
Make BootableClientA and BootableClientB be without discs.
}
computers = {
'DHCPServer': {
'disks': [
{ 'name': 'DHCPServer',
},
{ 'name': 'bootable_iso',
'options':{'readonly': True},
'parts': [],
},
#{ 'name': 'CDROM',
# 'options':{'readonly': True},
# 'parts': [],# no parts, no mounting.
#}
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'BootableClientA': {
'disks': [
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'BootableClientB': {
'disks': [
],
'network_interfaces': [{'network': 'net1'}],
'flavor': 'm1.tiny',
'config_drive': False
},
'SimpleArbiter': {
'disks': [
{ 'name': 'simpleArbiterDhcp',
},
#{ '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} }
params_meta = {
'IP_DHCP': {'descriptions': {'si': 'IP DHCP streznika'}, 'w': False, 'public': True, 'type':'IP', 'generated': True},
'IP_GW': {'descriptions': {'si': 'IP SimpleArbiterja'}, 'w': False, 'public': True, 'type':'IP', 'generated': True},
'MAC_BOOT': {'descriptions': {'si': 'MAC racunalnika, ki se zazene z ISO'}, 'w': True, 'public': True, 'type':'MAC', 'generated': False},
'IP_BOOT': {'descriptions': {'si': 'IP racunalnika, ki se zazene z ISO'}, 'w': True, 'public': True, 'type':'IP', 'generated': False},
'BOOT_FNAME': {'descriptions': {'si': 'Ime datoteke'}, 'w': False, 'public': True, 'type': 'filename', 'generated': True},
}
def task(IP_DHCP, IP_GW, MAC_BOOT, BOOT_FNAME):
# check the IP
import socket
import os
results={}
try:
if IP_DHCP.count('.')!=3 or IP_GW.count('.')!=3:
results['IPcheck']=False
socket.inet_pton(socket.AF_INET,IP_DHCP)
socket.inet_pton(socket.AF_INET,IP_GW)
results['IPcheck']=True
# ping the DHCP server
if os.system("ping "+IP_DHCP)==0:
results[PingDHCP]=True
print("Povezava z DHCP strežnikom je OK")
# check whether the fname served by the dhcp server is
# correct
datoteka=open(BOOT_FNAME,"r")
array=[]
for line in datoteka:
array.append(line)
datoteka.close()
#greš skozi array preverit ce je vse ok
else:
print("Povezava s strežnikom ni OK")
results['PingDHCP']=False
except FileNotFoundError:
results['BootFname']=False
return "Datoteka ne obstaja"
except IOError:
results['BootFname']=False
return "I/O napaka"
except OSError:
results['IPcheck']=False
# check whether the fname served by the dhcp server is correct
# connect to the service in the special ISO
# check the MAC of the server on IP_BOOT
return results
def gen_params(user_id, params_meta):
params = dict()
r = random.Random(user_id)
net = kpov_random_helpers.IPv4_subnet_gen(r, '10.75.0.0/10', 24)
params['IP_DHCP'], params['IP_GW'] = kpov_random_helpers.IPv4_addr_gen(r, net, 2)
params['BOOT_FNAME'] = kpov_random_helpers.filename_gen(r)
# IP_NM, DNS_NM, IP_static, DNS_static)
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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