root / snf-app / synnefo / db / models.py @ 483c9197
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# vim: ts=4 sts=4 et ai sw=4 fileencoding=utf-8
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# Copyright 2011 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and documentation are
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# those of the authors and should not be interpreted as representing official
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# policies, either expressed or implied, of GRNET S.A.
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from django.conf import settings |
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from django.db import models |
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import datetime |
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class SynnefoUser(models.Model): |
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#TODO: Amend this when we have groups
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ACCOUNT_TYPE = ( |
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('STUDENT', 'Student'), |
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('PROFESSOR', 'Professor'), |
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('USER', 'Generic User'), |
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('HELPDESK', 'Helpdesk User'), |
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('ADMIN', 'Admin User') |
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) |
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ACCOUNT_STATE = ( |
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('ACTIVE', 'Active'), |
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('DELETED', 'Deleted'), |
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('SUSPENDED', 'Suspended') |
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) |
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name = models.CharField('Synnefo Username', max_length=255, default='') |
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realname = models.CharField('Real Name', max_length=255, default='') |
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uniq = models.CharField('External Unique ID', max_length=255,null=True) |
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credit = models.IntegerField('Credit Balance')
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auth_token = models.CharField('Authentication Token', max_length=32, null=True) |
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auth_token_created = models.DateTimeField('Time of auth token creation', auto_now_add=True, null = True) |
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auth_token_expires = models.DateTimeField('Time of auth token expiration', auto_now_add=True, null = True) |
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tmp_auth_token = models.CharField('Temporary authentication token', max_length=32, null=True) |
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tmp_auth_token_expires = models.DateTimeField('Time of temporary auth token expiration', auto_now_add=True, null = True) |
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type = models.CharField('Account type', choices=ACCOUNT_TYPE,
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max_length=30)
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state = models.CharField('Account state', choices=ACCOUNT_STATE,
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max_length=30, default='ACTIVE') |
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created = models.DateTimeField('Time of creation', auto_now_add=True) |
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updated = models.DateTimeField('Time of last update', auto_now=True) |
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max_invitations = models.IntegerField('Max number of invitations',
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null=True)
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class Meta: |
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verbose_name = u'Synnefo User'
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def __unicode__(self): |
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return self.name |
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def get_limit(self, limit_name): |
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"""Returns the limit value for the specified limit"""
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limit_objs = Limit.objects.filter(name=limit_name, user=self)
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if len(limit_objs) == 1: |
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return limit_objs[0].value |
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return 0 |
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def _get_credit_quota(self): |
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"""Internal getter function for credit quota"""
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return self.get_limit('QUOTA_CREDIT') |
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credit_quota = property(_get_credit_quota)
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def _get_monthly_rate(self): |
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"""Internal getter function for monthly credit issue rate"""
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return self.get_limit('MONTHLY_RATE') |
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monthly_rate = property(_get_monthly_rate)
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def _get_min_credits(self): |
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"""Internal getter function for maximum number of violations"""
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return self.get_limit('MIN_CREDITS') |
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min_credits = property(_get_min_credits)
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class Image(models.Model): |
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# This is WIP, FIXME
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IMAGE_STATES = ( |
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('ACTIVE', 'Active'), |
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('SAVING', 'Saving'), |
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('DELETED', 'Deleted') |
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) |
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# The list of supported Image formats
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FORMATS = ( |
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('dump', 'ext3 dump'), |
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('extdump', 'Raw ext2/3/4 dump'), |
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('lvm', 'lvm snapshot'), |
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('ntfsclone', 'Windows Image produced by ntfsclone'), |
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('ntfsdump', 'Raw NTFS dump') |
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) |
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name = models.CharField('Image name', max_length=255) |
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state = models.CharField('Current Image State', choices=IMAGE_STATES,
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max_length=30)
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owner = models.ForeignKey(SynnefoUser, blank=True, null=True) |
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created = models.DateTimeField('Time of creation', auto_now_add=True) |
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updated = models.DateTimeField('Time of last update', auto_now=True) |
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sourcevm = models.ForeignKey("VirtualMachine", null=True) |
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backend_id = models.CharField(max_length=50, default='debian_base') |
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format = models.CharField(choices=FORMATS, max_length=30, default='dump') |
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public = models.BooleanField(default=False)
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class Meta: |
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verbose_name = u'Image'
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def __unicode__(self): |
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return u'%s' % ( self.name, ) |
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class ImageMetadata(models.Model): |
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meta_key = models.CharField('Image metadata key name', max_length=50) |
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meta_value = models.CharField('Image metadata value', max_length=500) |
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image = models.ForeignKey(Image, related_name='metadata')
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class Meta: |
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unique_together = (('meta_key', 'image'),) |
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verbose_name = u'Key-value pair of Image metadata.'
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def __unicode__(self): |
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return u'%s, %s for %s' % (self.meta_key, self.meta_value, self.image.name) |
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class Limit(models.Model): |
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LIMITS = ( |
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('QUOTA_CREDIT', 'Maximum amount of credits per user'), |
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('MIN_CREDITS', 'Minimum amount of credits per user'), |
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('MONTHLY_RATE', 'Monthly credit issue rate') |
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) |
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user = models.ForeignKey(SynnefoUser) |
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name = models.CharField('Limit key name', choices=LIMITS, max_length=30, null=False) |
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value = models.IntegerField('Limit current value')
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class Meta: |
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verbose_name = u'Enforced limit for user'
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def __unicode__(self): |
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return u'Limit %s for user %s: %d' % (self.value, self.user, self.value) |
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class Flavor(models.Model): |
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cpu = models.IntegerField('Number of CPUs', default=0) |
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ram = models.IntegerField('RAM size in MiB', default=0) |
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disk = models.IntegerField('Disk size in GiB', default=0) |
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disk_template = models.CharField('Disk template', max_length=32, |
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default=settings.DEFAULT_GANETI_DISK_TEMPLATE) |
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deleted = models.BooleanField('Deleted', default=False) |
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class Meta: |
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verbose_name = u'Virtual machine flavor'
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unique_together = ("cpu","ram","disk") |
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def _get_name(self): |
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"""Returns flavor name (generated)"""
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return u'C%dR%dD%d' % (self.cpu, self.ram, self.disk) |
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def _current_cost(self, active): |
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"""Returns active/inactive cost value
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set active = True to get active cost and False for the inactive.
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"""
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fch_list = FlavorCost.objects.filter(flavor=self).order_by('-effective_from') |
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if len(fch_list) > 0: |
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if active:
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return fch_list[0].cost_active |
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else:
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return fch_list[0].cost_inactive |
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return 0 |
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def _current_cost_active(self): |
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"""Returns current active cost (property method)"""
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return self._current_cost(True) |
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def _current_cost_inactive(self): |
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"""Returns current inactive cost (property method)"""
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return self._current_cost(False) |
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name = property(_get_name)
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current_cost_active = property(_current_cost_active)
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current_cost_inactive = property(_current_cost_inactive)
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def __unicode__(self): |
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return self.name |
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class FlavorCost(models.Model): |
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cost_active = models.PositiveIntegerField('Active Cost')
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cost_inactive = models.PositiveIntegerField('Inactive Cost')
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effective_from = models.DateTimeField() |
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flavor = models.ForeignKey(Flavor) |
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class Meta: |
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verbose_name = u'Pricing history for flavors'
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def __unicode__(self): |
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return u'Costs (up, down)=(%d, %d) for %s since %s' % \ |
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(int(self.cost_active), int(self.cost_inactive), |
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self.flavor.name, self.effective_from) |
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class VirtualMachine(models.Model): |
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# The list of possible actions for a VM
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ACTIONS = ( |
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('CREATE', 'Create VM'), |
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('START', 'Start VM'), |
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('STOP', 'Shutdown VM'), |
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('SUSPEND', 'Admin Suspend VM'), |
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('REBOOT', 'Reboot VM'), |
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('DESTROY', 'Destroy VM') |
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) |
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# The internal operating state of a VM
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OPER_STATES = ( |
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('BUILD', 'Queued for creation'), |
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('ERROR', 'Creation failed'), |
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('STOPPED', 'Stopped'), |
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('STARTED', 'Started'), |
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('DESTROYED', 'Destroyed') |
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) |
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# The list of possible operations on the backend
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BACKEND_OPCODES = ( |
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('OP_INSTANCE_CREATE', 'Create Instance'), |
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('OP_INSTANCE_REMOVE', 'Remove Instance'), |
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('OP_INSTANCE_STARTUP', 'Startup Instance'), |
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('OP_INSTANCE_SHUTDOWN', 'Shutdown Instance'), |
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('OP_INSTANCE_REBOOT', 'Reboot Instance'), |
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# These are listed here for completeness,
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# and are ignored for the time being
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('OP_INSTANCE_SET_PARAMS', 'Set Instance Parameters'), |
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('OP_INSTANCE_QUERY_DATA', 'Query Instance Data'), |
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('OP_INSTANCE_REINSTALL', 'Reinstall Instance'), |
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('OP_INSTANCE_ACTIVATE_DISKS', 'Activate Disks'), |
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('OP_INSTANCE_DEACTIVATE_DISKS', 'Deactivate Disks'), |
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('OP_INSTANCE_REPLACE_DISKS', 'Replace Disks'), |
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('OP_INSTANCE_MIGRATE', 'Migrate Instance'), |
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('OP_INSTANCE_CONSOLE', 'Get Instance Console'), |
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('OP_INSTANCE_RECREATE_DISKS', 'Recreate Disks'), |
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('OP_INSTANCE_FAILOVER', 'Failover Instance') |
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) |
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# A backend job may be in one of the following possible states
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BACKEND_STATUSES = ( |
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('queued', 'request queued'), |
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('waiting', 'request waiting for locks'), |
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('canceling', 'request being canceled'), |
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('running', 'request running'), |
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('canceled', 'request canceled'), |
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('success', 'request completed successfully'), |
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('error', 'request returned error') |
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) |
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# The operating state of a VM,
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# upon the successful completion of a backend operation.
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# IMPORTANT: Make sure all keys have a corresponding
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# entry in BACKEND_OPCODES if you update this field, see #1035, #1111.
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OPER_STATE_FROM_OPCODE = { |
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'OP_INSTANCE_CREATE': 'STARTED', |
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'OP_INSTANCE_REMOVE': 'DESTROYED', |
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'OP_INSTANCE_STARTUP': 'STARTED', |
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'OP_INSTANCE_SHUTDOWN': 'STOPPED', |
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'OP_INSTANCE_REBOOT': 'STARTED', |
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'OP_INSTANCE_SET_PARAMS': None, |
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'OP_INSTANCE_QUERY_DATA': None, |
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'OP_INSTANCE_REINSTALL' : None, |
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'OP_INSTANCE_ACTIVATE_DISKS' : None, |
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'OP_INSTANCE_DEACTIVATE_DISKS': None, |
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'OP_INSTANCE_REPLACE_DISKS' : None, |
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'OP_INSTANCE_MIGRATE': None, |
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'OP_INSTANCE_CONSOLE': None, |
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'OP_INSTANCE_RECREATE_DISKS': None, |
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'OP_INSTANCE_FAILOVER': None |
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} |
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# This dictionary contains the correspondence between
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# internal operating states and Server States as defined
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# by the Rackspace API.
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RSAPI_STATE_FROM_OPER_STATE = { |
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"BUILD": "BUILD", |
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"ERROR": "ERROR", |
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"STOPPED": "STOPPED", |
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"STARTED": "ACTIVE", |
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"DESTROYED": "DELETED" |
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} |
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name = models.CharField('Virtual Machine Name', max_length=255) |
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owner = models.ForeignKey(SynnefoUser) |
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created = models.DateTimeField(auto_now_add=True)
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updated = models.DateTimeField(auto_now=True)
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charged = models.DateTimeField(default=datetime.datetime.now()) |
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sourceimage = models.ForeignKey("Image", null=False) |
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hostid = models.CharField(max_length=100)
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flavor = models.ForeignKey(Flavor) |
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deleted = models.BooleanField('Deleted', default=False) |
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suspended = models.BooleanField('Administratively Suspended', default=False) |
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# VM State
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# The following fields are volatile data, in the sense
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# that they need not be persistent in the DB, but rather
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# get generated at runtime by quering Ganeti and applying
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# updates received from Ganeti.
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# In the future they could be moved to a separate caching layer
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# and removed from the database.
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# [vkoukis] after discussion with [faidon].
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action = models.CharField(choices=ACTIONS, max_length=30, null=True) |
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operstate = models.CharField(choices=OPER_STATES, max_length=30, null=True) |
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backendjobid = models.PositiveIntegerField(null=True)
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backendopcode = models.CharField(choices=BACKEND_OPCODES, max_length=30,
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null=True)
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backendjobstatus = models.CharField(choices=BACKEND_STATUSES, max_length=30,
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null=True)
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backendlogmsg = models.TextField(null=True)
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buildpercentage = models.IntegerField(default=0)
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|
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# Error classes
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class InvalidBackendIdError(Exception): |
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def __init__(self, value): |
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self.value = value
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def __str__(self): |
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return repr(self.value) |
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class InvalidBackendMsgError(Exception): |
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def __init__(self, opcode, status): |
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self.opcode = opcode
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self.status = status
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def __str__(self): |
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return repr("<opcode: %s, status: %s>" % (str(self.opcode), |
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str(self.status))) |
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class InvalidActionError(Exception): |
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def __init__(self, action): |
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self._action = action
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def __str__(self): |
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return repr(str(self._action)) |
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class DeletedError(Exception): |
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pass
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class BuildingError(Exception): |
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pass
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#class IllegalState(Exception):
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# pass
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def __init__(self, *args, **kw): |
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"""Initialize state for just created VM instances."""
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super(VirtualMachine, self).__init__(*args, **kw) |
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# This gets called BEFORE an instance gets save()d for
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# the first time.
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if not self.pk: |
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self.action = None |
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self.backendjobid = None |
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self.backendjobstatus = None |
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self.backendopcode = None |
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self.backendlogmsg = None |
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self.operstate = 'BUILD' |
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|
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def _get_backend_id(self): |
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"""Returns the backend id for this VM by prepending backend-prefix."""
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if not self.id: |
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raise VirtualMachine.InvalidBackendIdError("self.id is None") |
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return '%s%s' % (settings.BACKEND_PREFIX_ID, str(self.id)) |
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backend_id = property(_get_backend_id)
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|
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class Meta: |
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verbose_name = u'Virtual machine instance'
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get_latest_by = 'created'
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|
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def __unicode__(self): |
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return self.name |
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|
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|
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class VirtualMachineGroup(models.Model): |
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"""Groups of VMs for SynnefoUsers"""
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name = models.CharField(max_length=255)
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created = models.DateTimeField('Time of creation', auto_now_add=True) |
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updated = models.DateTimeField('Time of last update', auto_now=True) |
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owner = models.ForeignKey(SynnefoUser) |
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machines = models.ManyToManyField(VirtualMachine) |
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|
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class Meta: |
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verbose_name = u'Virtual Machine Group'
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verbose_name_plural = 'Virtual Machine Groups'
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ordering = ['name']
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|
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def __unicode__(self): |
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return self.name |
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|
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|
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class VirtualMachineMetadata(models.Model): |
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meta_key = models.CharField(max_length=50)
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meta_value = models.CharField(max_length=500)
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vm = models.ForeignKey(VirtualMachine, related_name='metadata')
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|
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class Meta: |
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unique_together = (('meta_key', 'vm'),) |
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verbose_name = u'Key-value pair of metadata for a VM.'
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|
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def __unicode__(self): |
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return u'%s, %s for %s' % (self.meta_key, self.meta_value, self.vm.name) |
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|
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|
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class Debit(models.Model): |
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when = models.DateTimeField() |
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user = models.ForeignKey(SynnefoUser) |
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vm = models.ForeignKey(VirtualMachine) |
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description = models.TextField() |
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|
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class Meta: |
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verbose_name = u'Accounting log'
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|
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def __unicode__(self): |
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return u'%s - %s - %s - %s' % (self.user.id, self.vm.name, |
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str(self.when), self.description) |
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|
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|
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class Disk(models.Model): |
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name = models.CharField(max_length=255)
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created = models.DateTimeField('Time of creation', auto_now_add=True) |
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updated = models.DateTimeField('Time of last update', auto_now=True) |
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size = models.PositiveIntegerField('Disk size in GBs')
|
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vm = models.ForeignKey(VirtualMachine, blank=True, null=True) |
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owner = models.ForeignKey(SynnefoUser, blank=True, null=True) |
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|
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class Meta: |
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verbose_name = u'Disk instance'
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|
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def __unicode__(self): |
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return self.name |
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|
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|
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class Network(models.Model): |
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NETWORK_STATES = ( |
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('ACTIVE', 'Active'), |
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('DELETED', 'Deleted') |
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) |
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|
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name = models.CharField(max_length=255)
|
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created = models.DateTimeField(auto_now_add=True)
|
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updated = models.DateTimeField(auto_now=True)
|
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owner = models.ForeignKey(SynnefoUser, null=True)
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state = models.CharField(choices=NETWORK_STATES, max_length=30)
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public = models.BooleanField(default=False)
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link = models.ForeignKey('NetworkLink', related_name='+') |
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machines = models.ManyToManyField(VirtualMachine, |
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through='NetworkInterface')
|
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|
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def __unicode__(self): |
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return self.name |
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|
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|
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class Invitations(models.Model): |
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source = models.ForeignKey(SynnefoUser, related_name="source")
|
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target = models.ForeignKey(SynnefoUser, related_name="target")
|
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accepted = models.BooleanField('Is the invitation accepted?', default=False) |
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created = models.DateTimeField(auto_now_add=True)
|
488 |
updated = models.DateTimeField(auto_now=True)
|
489 |
level = models.IntegerField('Invitation depth level', null=True) |
490 |
|
491 |
class Meta: |
492 |
verbose_name = u'Invitation'
|
493 |
|
494 |
def __unicode__(self): |
495 |
return "From: %s, To: %s" % (self.source, self.target) |
496 |
|
497 |
|
498 |
class NetworkInterface(models.Model): |
499 |
FIREWALL_PROFILES = ( |
500 |
('ENABLED', 'Enabled'), |
501 |
('DISABLED', 'Disabled'), |
502 |
('PROTECTED', 'Protected') |
503 |
) |
504 |
|
505 |
machine = models.ForeignKey(VirtualMachine, related_name='nics')
|
506 |
network = models.ForeignKey(Network, related_name='nics')
|
507 |
created = models.DateTimeField(auto_now_add=True)
|
508 |
updated = models.DateTimeField(auto_now=True)
|
509 |
index = models.IntegerField(null=True)
|
510 |
mac = models.CharField(max_length=17, null=True) |
511 |
ipv4 = models.CharField(max_length=15, null=True) |
512 |
ipv6 = models.CharField(max_length=100, null=True) |
513 |
firewall_profile = models.CharField(choices=FIREWALL_PROFILES, |
514 |
max_length=30, null=True) |
515 |
|
516 |
def __unicode__(self): |
517 |
return '%s@%s' % (self.machine.name, self.network.name) |
518 |
|
519 |
|
520 |
class NetworkLink(models.Model): |
521 |
network = models.ForeignKey(Network, null=True, related_name='+') |
522 |
index = models.IntegerField() |
523 |
name = models.CharField(max_length=255)
|
524 |
available = models.BooleanField(default=True)
|
525 |
|
526 |
def __unicode__(self): |
527 |
return self.name |