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A prog2-höz tartozó friss repo anyagok itt elérhetőek: https://git.iit.bme.hu/

Commit 81cd77d5 by Őry Máté
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one: code formatting, documentation

parent 418e464e
Showing with 117 additions and 49 deletions
one/models.py
......@@ -7,16 +7,18 @@ from django.db import transaction
from django.db.models.signals import post_save
from django import forms
from django.utils.translation import ugettext_lazy as _
from one.util import keygen
from school.models import Person
from firewall.models import Host, Rule, Vlan
from firewall.tasks import reload_firewall_lock
from one.util import keygen
from school.models import Person
import subprocess, tempfile, os, stat, re
pwgen = User.objects.make_random_password
pwgen = User.objects.make_random_password
"""
User creation hook: create cloud details object
"""
def create_user_profile(sender, instance, created, **kwargs):
if created:
d = UserCloudDetails(user=instance)
......@@ -24,13 +26,22 @@ def create_user_profile(sender, instance, created, **kwargs):
d.save()
post_save.connect(create_user_profile, sender=User)
"""
Cloud related details of a user
"""
class UserCloudDetails(models.Model):
user = models.ForeignKey(User, null=False, blank=False, unique=True)
smb_password = models.CharField(max_length=20)
ssh_key = models.ForeignKey('SshKey', null=True)
ssh_private_key = models.TextField()
user = models.ForeignKey(User, null=False, blank=False, unique=True, verbose_name=_('user'))
smb_password = models.CharField(max_length=20,
verbose_name=_('Samba password'),
help_text=_('Generated password for accessing store from Windows.'))
ssh_key = models.ForeignKey('SshKey', null=True, verbose_name=_('SSH key (public)'),
help_text=_('Generated SSH public key for accessing store from Linux.'))
ssh_private_key = models.TextField(verbose_name=_('SSH key (private)'),
help_text=_('Generated SSH private key for accessing store from Linux.'))
"""
Delete old SSH key pair and generate new one.
"""
def reset_keys(self):
pri, pub = keygen()
self.ssh_private_key = pri
......@@ -41,9 +52,15 @@ class UserCloudDetails(models.Model):
self.ssh_key = SshKey(user=self.user, key=pub)
self.ssh_key.save()
"""
Generate new Samba password.
"""
def reset_smb(self):
self.smb_password = pwgen()
"""
Generate key pair and Samba password if needed.
"""
def clean(self):
super(UserCloudDetails, self).clean()
if not self.ssh_key:
......@@ -51,6 +68,9 @@ class UserCloudDetails(models.Model):
if not self.smb_password or len(self.smb_password) == 0:
self.reset_smb()
"""
Validate OpenSSH keys (length and type).
"""
class OpenSshKeyValidator(object):
valid_types = ['ssh-rsa', 'ssh-dsa']
......@@ -74,13 +94,16 @@ class OpenSshKeyValidator(object):
except:
raise ValidationError(_('Invalid OpenSSH public key.'))
"""
SSH public key (in OpenSSH format).
"""
class SshKey(models.Model):
user = models.ForeignKey(User, null=False, blank=False)
key = models.CharField(max_length=2000, verbose_name=_('SSH key'),
help_text=_('<a href="/info/ssh/">SSH public key in OpenSSH format</a> used for shell login '
'(2048+ bit RSA preferred). Example: <code>ssh-rsa AAAAB...QtQ== '
'john</code>.'), validators=[OpenSshKeyValidator()])
def __unicode__(self):
try:
keycomment = self.key.split(None, 2)[2]
......@@ -89,10 +112,15 @@ class SshKey(models.Model):
return u"%s (%s)" % (keycomment, self.user)
"""
Virtual disks automatically synchronized with OpenNebula.
"""
class Disk(models.Model):
name = models.CharField(max_length=100, unique=True, verbose_name=_('name'))
"""
Get and register virtual disks from OpenNebula.
"""
@classmethod
def update(cls):
import subprocess
......@@ -121,12 +149,17 @@ class Disk(models.Model):
class Meta:
ordering = ['name']
"""
Virtual networks automatically synchronized with OpenNebula.
"""
class Network(models.Model):
name = models.CharField(max_length=100, unique=True, verbose_name=_('name'))
nat = models.BooleanField()
public = models.BooleanField()
nat = models.BooleanField(verbose_name=_('NAT'), help_text=_('If network address translation is done.'))
public = models.BooleanField(verbose_name=_('public'), help_text=_('If internet gateway is available.'))
"""
Get and register virtual networks from OpenNebula.
"""
@classmethod
def update(cls):
import subprocess
......@@ -154,56 +187,84 @@ class Network(models.Model):
class Meta:
ordering = ['name']
"""
Instance types in OCCI configuration (manually synchronized).
"""
class InstanceType(models.Model):
name = models.CharField(max_length=100, unique=True,
verbose_name=_('name'))
CPU = models.IntegerField()
RAM = models.IntegerField()
CPU = models.IntegerField(help_text=_('CPU cores.'))
RAM = models.IntegerField(help_text=_('Mebibytes of memory.'))
def __unicode__(self):
return u"%s" % self.name
"""
Virtual machine template specifying OS, disk, type and network.
"""
class Template(models.Model):
name = models.CharField(max_length=100, unique=True,
verbose_name=_('név'))
access_type = models.CharField(max_length=10, choices=[('rdp', 'rdp'), ('nx', 'nx'), ('ssh', 'ssh')])
disk = models.ForeignKey(Disk)
instance_type = models.ForeignKey(InstanceType)
network = models.ForeignKey(Network)
owner = models.ForeignKey(User)
created_at = models.DateTimeField(auto_now_add=True)
verbose_name=_('name'))
access_type = models.CharField(max_length=10,
choices=[('rdp', 'rdp'), ('nx', 'nx'), ('ssh', 'ssh')],
verbose_name=_('access method'))
disk = models.ForeignKey(Disk, verbose_name=_('disk'))
instance_type = models.ForeignKey(InstanceType, verbose_name=_('instance type'))
network = models.ForeignKey(Network, verbose_name=_('network'))
owner = models.ForeignKey(User, verbose_name=_('owner'))
created_at = models.DateTimeField(auto_now_add=True, verbose_name=_('created at'))
def __unicode__(self):
return self.name
class Meta:
verbose_name = _('sablon')
verbose_name_plural = _('sablonok')
verbose_name = _('template')
verbose_name_plural = _('templates')
"""
Virtual machine instance.
"""
class Instance(models.Model):
name = models.CharField(max_length=100, unique=True,
verbose_name=_('név'), null=True, blank=True)
ip = models.IPAddressField(blank=True, null=True)
template = models.ForeignKey(Template)
owner = models.ForeignKey(User)
created_at = models.DateTimeField(auto_now_add=True)
state = models.CharField(max_length=20, choices=[('DEPLOYABLE', 'DEPLOYABLE'), ('PENDING', 'PENDING'), ('DONE', 'DONE'), ('ACTIVE', 'ACTIVE'),('UNKNOWN', 'UNKNOWN'), ('SUSPENDED', 'SUSPENDED'), ('FAILED', 'FAILED')], default='DEPLOYABLE')
active_since = models.DateTimeField(null=True, blank=True)
firewall_host = models.ForeignKey(Host, blank=True, null=True)
pw = models.CharField(max_length=20)
one_id = models.IntegerField(unique=True, blank=True, null=True)
ip = models.IPAddressField(blank=True, null=True, verbose_name=_('IP address'))
template = models.ForeignKey(Template, verbose_name=_('template'))
owner = models.ForeignKey(User, verbose_name=_('owner'))
created_at = models.DateTimeField(auto_now_add=True, verbose_name=_('created_at'))
state = models.CharField(max_length=20,
choices=[('DEPLOYABLE', _('deployable')),
('PENDING', _('pending')),
('DONE', _('done')),
('ACTIVE', _('active')),
('UNKNOWN', _('unknown')),
('SUSPENDED', _('suspended')),
('FAILED', _('failed'))], default='DEPLOYABLE')
active_since = models.DateTimeField(null=True, blank=True,
verbose_name=_('active since'),
help_text=_('Time stamp of successful boot report.'))
firewall_host = models.ForeignKey(Host, blank=True, null=True, verbose_name=_('host in firewall'))
pw = models.CharField(max_length=20, verbose_name=_('password'), help_text=_('Original password of instance'))
one_id = models.IntegerField(unique=True, blank=True, null=True, verbose_name=_('OpenNebula ID'))
"""
Get public port number for default access method.
"""
def get_port(self):
proto = self.template.access_type
if self.template.network.nat:
return {"rdp": 23000, "nx": 22000, "ssh": 22000}[proto] + int(self.ip.split('.')[3])
else:
return {"rdp": 3389, "nx": 22, "ssh": 22}[proto]
"""
Get public hostname.
"""
def get_connect_host(self):
if self.template.network.nat:
return 'cloud'
else:
return self.ip
"""
Get access parameters in URI format.
"""
def get_connect_uri(self):
try:
proto = self.template.access_type
......@@ -217,6 +278,10 @@ class Instance(models.Model):
def __unicode__(self):
return self.name
"""
Get and update VM state from OpenNebula.
"""
def update_state(self):
import subprocess
......@@ -241,11 +306,14 @@ class Instance(models.Model):
self.save()
return x
"""
Get age of VM in seconds.
"""
def get_age(self):
from datetime import datetime
age = 0
try:
age = (datetime.now().replace(tzinfo=None)
age = (datetime.now().replace(tzinfo=None)
- self.active_since.replace(tzinfo=None)).seconds
except:
pass
......@@ -253,8 +321,11 @@ class Instance(models.Model):
@models.permalink
def get_absolute_url(self):
return ('vm_show', None, {'iid':self.id,})
return ('vm_show', None, {'iid':self.id})
"""
Submit a new instance to OpenNebula.
"""
@classmethod
def submit(cls, template, owner):
from django.template.defaultfilters import escape
......@@ -296,10 +367,9 @@ class Instance(models.Model):
"net": template.network.id,
"pw": escape(inst.pw),
"smbpw": escape(details.smb_password),
"sshkey": escape(details.ssh_private_key),
"neptun": escape(owner.username),
"booturl": "http://cloud.ik.bme.hu/b/%s/" % token,
}
"sshkey": escape(details.ssh_private_key),
"neptun": escape(owner.username),
"booturl": "http://cloud.ik.bme.hu/b/%s/" % token, }
f.write(tpl)
f.close()
import subprocess
......@@ -332,6 +402,9 @@ class Instance(models.Model):
reload_firewall_lock()
return inst
"""
Delete host in OpenNebula.
"""
def delete(self):
proc = subprocess.Popen(["/opt/occi.sh", "compute",
"delete", "%d"%self.one_id], stdout=subprocess.PIPE)
......@@ -343,8 +416,3 @@ class Instance(models.Model):
class Meta:
verbose_name = _('instance')
verbose_name_plural = _('instances')
# vim: et sw=4 ai fenc=utf8 smarttab :
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