/usr/lib/python2.7/dist-packages/metadataserver/migrations/0003_populate_hardware_details.py is in python-django-maas 1.5.4+bzr2294-0ubuntu1.2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 | """Migration for populating new Node fields related to constraints
A shared helper function is used that both the real Node model in maasserver
and the stubs used by south can work with. This saves writing the logic to
populate cpu_count and memory in two places. On migration it is likely that
tags do not exist yet.
If for whatever reason previously stored lshw output is not well formed XML,
the fields in Node are not populated.
"""
import math
from django.core.exceptions import ValidationError
from lxml import etree
from south.v2 import DataMigration
_xpath_processor_count = """\
count(//node[@id='core']/
node[@class='processor'][not(@disabled)])
"""
# Some machines have a <size> element in their memory <node> with the total
# amount of memory, and other machines declare the size of the memory in
# individual memory banks. This expression is mean to cope with both.
_xpath_memory_bytes = """\
sum(//node[@id='memory']/size[@units='bytes'] |
//node[starts-with(@id, 'memory:')]
/node[starts-with(@id, 'bank:')]/size[@units='bytes'])
div 1024 div 1024
"""
_xpath_storage_bytes = """\
sum(//node[starts-with(@id, 'volume:')]/size[@units='bytes'])
div 1024 div 1024
"""
def update_hardware_details(node, xmlbytes, tag_manager):
"""Set node hardware_details from lshw output and update related fields.
This previously resided in `maasserver.models.node`, but has been
copied into this migration so that it can be modified in its
original location without breaking this migration.
"""
try:
doc = etree.XML(xmlbytes)
except etree.XMLSyntaxError as e:
raise ValidationError(
{'hardware_details': ['Invalid XML: %s' % (e,)]})
node.hardware_details = xmlbytes
# Same document, many queries: use XPathEvaluator.
evaluator = etree.XPathEvaluator(doc)
cpu_count = evaluator(_xpath_processor_count)
memory = evaluator(_xpath_memory_bytes)
if not memory or math.isnan(memory):
memory = 0
storage = evaluator(_xpath_storage_bytes)
if not storage or math.isnan(storage):
storage = 0
node.cpu_count = cpu_count or 0
node.memory = memory
node.storage = storage
for tag in tag_manager.all():
if not tag.definition:
continue
has_tag = evaluator(tag.definition)
if has_tag:
node.tags.add(tag)
else:
node.tags.remove(tag)
node.save()
class Migration(DataMigration):
_lshw_name = "01-lshw.out"
def forwards(self, orm):
"""Move lshw text blob in metadataserver to xml field in Node"""
Tag = orm['maasserver.tag']
for commission_result in orm.NodeCommissionResult.objects.filter(
name=self._lshw_name):
node = commission_result.node
data = commission_result.data
try:
update_hardware_details(node, data, Tag.objects)
except ValidationError:
pass
else:
node.save()
def backwards(self, orm):
"""Move xml field in Node to lshw text blob in metadataserver"""
Node = orm['maasserver.Node']
for node in Node.objects.all():
lshw_output = node.hardware_details
if lshw_output:
orm.NodeCommissionResult.objects.store_data(
node, self._lshw_name, lshw_output)
models = {
'auth.group': {
'Meta': {'object_name': 'Group'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
},
'auth.permission': {
'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'auth.user': {
'Meta': {'object_name': 'User'},
'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'email': ('django.db.models.fields.EmailField', [], {'unique': 'True', 'max_length': '75', 'blank': 'True'}),
'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
},
'contenttypes.contenttype': {
'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
},
u'maasserver.node': {
'Meta': {'object_name': 'Node'},
'after_commissioning_action': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'architecture': ('django.db.models.fields.CharField', [], {'default': "u'i386/generic'", 'max_length': '31'}),
'cpu_count': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'created': ('django.db.models.fields.DateTimeField', [], {}),
'distro_series': ('django.db.models.fields.CharField', [], {'default': 'None', 'max_length': '10', 'null': 'True', 'blank': 'True'}),
'error': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '255', 'blank': 'True'}),
'hardware_details': ('maasserver.fields.XMLField', [], {'default': 'None', 'null': 'True', 'blank': 'True'}),
'hostname': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '255', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'memory': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'netboot': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'nodegroup': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['maasserver.NodeGroup']", 'null': 'True'}),
'owner': ('django.db.models.fields.related.ForeignKey', [], {'default': 'None', 'to': "orm['auth.User']", 'null': 'True', 'blank': 'True'}),
'power_parameters': ('maasserver.fields.JSONObjectField', [], {'default': "u''", 'blank': 'True'}),
'power_type': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '10', 'blank': 'True'}),
'status': ('django.db.models.fields.IntegerField', [], {'default': '0', 'max_length': '10'}),
'system_id': ('django.db.models.fields.CharField', [], {'default': "u'node-dc867442-0ca0-11e2-9ff0-fa163e46ecd0'", 'unique': 'True', 'max_length': '41'}),
'tags': ('django.db.models.fields.related.ManyToManyField', [], {'to': u"orm['maasserver.Tag']", 'symmetrical': 'False'}),
'token': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['piston.Token']", 'null': 'True'}),
'updated': ('django.db.models.fields.DateTimeField', [], {})
},
u'maasserver.nodegroup': {
'Meta': {'object_name': 'NodeGroup'},
'api_key': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '18'}),
'api_token': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['piston.Token']", 'unique': 'True'}),
'created': ('django.db.models.fields.DateTimeField', [], {}),
'dhcp_key': ('django.db.models.fields.CharField', [], {'default': "u''", 'max_length': '255', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '80', 'blank': 'True'}),
'status': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'updated': ('django.db.models.fields.DateTimeField', [], {}),
'uuid': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '36'})
},
u'maasserver.tag': {
'Meta': {'object_name': 'Tag'},
'comment': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'created': ('django.db.models.fields.DateTimeField', [], {}),
'definition': ('django.db.models.fields.TextField', [], {}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '256'}),
'updated': ('django.db.models.fields.DateTimeField', [], {})
},
u'metadataserver.nodecommissionresult': {
'Meta': {'unique_together': "((u'node', u'name'),)", 'object_name': 'NodeCommissionResult'},
'data': ('django.db.models.fields.CharField', [], {'max_length': '1048576'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'node': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['maasserver.Node']"})
},
u'metadataserver.nodekey': {
'Meta': {'object_name': 'NodeKey'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'key': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '18'}),
'node': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['maasserver.Node']", 'unique': 'True'}),
'token': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['piston.Token']", 'unique': 'True'})
},
u'metadataserver.nodeuserdata': {
'Meta': {'object_name': 'NodeUserData'},
'data': ('metadataserver.fields.BinaryField', [], {}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'node': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['maasserver.Node']", 'unique': 'True'})
},
'piston.consumer': {
'Meta': {'object_name': 'Consumer'},
'description': ('django.db.models.fields.TextField', [], {}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'key': ('django.db.models.fields.CharField', [], {'max_length': '18'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '255'}),
'secret': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
'status': ('django.db.models.fields.CharField', [], {'default': "'pending'", 'max_length': '16'}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'consumers'", 'null': 'True', 'to': "orm['auth.User']"})
},
'piston.token': {
'Meta': {'object_name': 'Token'},
'callback': ('django.db.models.fields.CharField', [], {'max_length': '255', 'null': 'True', 'blank': 'True'}),
'callback_confirmed': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'consumer': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['piston.Consumer']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'is_approved': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'key': ('django.db.models.fields.CharField', [], {'max_length': '18'}),
'secret': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
'timestamp': ('django.db.models.fields.IntegerField', [], {'default': '1349189580L'}),
'token_type': ('django.db.models.fields.IntegerField', [], {}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'tokens'", 'null': 'True', 'to': "orm['auth.User']"}),
'verifier': ('django.db.models.fields.CharField', [], {'max_length': '10'})
}
}
complete_apps = ['metadataserver']
symmetrical = True
|