45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
from __future__ import absolute_import
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import os
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import datetime
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import platform
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import psutil
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from django.db import models, IntegrityError, transaction
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from django.db import close_connection
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from django.utils.translation import ugettext_lazy as _
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from django.utils.translation import ugettext
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class NodeManager(models.Manager):
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def myself(self):
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node, created = self.model.objects.get_or_create(hostname=platform.node(), defaults={'memory_usage': 100})
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node.refresh()
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return node
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class Node(models.Model):
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hostname = models.CharField(max_length=255, verbose_name=_(u'hostname'))
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cpuload = models.PositiveIntegerField(blank=True, default=0, verbose_name=_(u'cpu load'))
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heartbeat = models.DateTimeField(blank=True, default=datetime.datetime.now(), verbose_name=_(u'last heartbeat check'))
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memory_usage = models.FloatField(blank=True, verbose_name=_(u'memory usage'))
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objects = NodeManager()
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def __unicode__(self):
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return self.hostname
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def refresh(self):
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self.cpuload = psutil.cpu_percent()
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self.memory_usage = psutil.phymem_usage().percent
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self.save()
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def save(self, *args, **kwargs):
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self.heartbeat = datetime.datetime.now()
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return super(Node, self).save(*args, **kwargs)
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class Meta:
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verbose_name = _(u'node')
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verbose_name_plural = _(u'nodes')
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