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
231
|
##############################################################################
# Copyright (c) 2018 Parker Berberian, Sawyer Bergeron, and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
from django.template.loader import render_to_string
import booking
from dashboard.exceptions import (
ResourceExistenceException,
ResourceAvailabilityException,
ResourceProvisioningException,
ModelValidationException,
)
from resource_inventory.models import Host, HostConfiguration, ResourceBundle, HostProfile
class ResourceManager:
instance = None
def __init__(self):
pass
@staticmethod
def getInstance():
if ResourceManager.instance is None:
ResourceManager.instance = ResourceManager()
return ResourceManager.instance
def getAvailableHostTypes(self, lab):
hostset = Host.objects.filter(lab=lab).filter(booked=False).filter(working=True)
hostprofileset = HostProfile.objects.filter(host__in=hostset, labs=lab)
return set(hostprofileset)
def hostsAvailable(self, grb):
"""
This method will check if the given GenericResourceBundle
is available. No changes to the database
"""
# count up hosts
profile_count = {}
for host in grb.getHosts():
if host.profile not in profile_count:
profile_count[host.profile] = 0
profile_count[host.profile] += 1
# check that all required hosts are available
for profile in profile_count.keys():
available = Host.objects.filter(
booked=False,
lab=grb.lab,
profile=profile
).count()
needed = profile_count[profile]
if available < needed:
return False
return True
# public interface
def deleteResourceBundle(self, resourceBundle):
for host in Host.objects.filter(bundle=resourceBundle):
self.releaseHost(host)
resourceBundle.delete()
def convertResourceBundle(self, genericResourceBundle, lab=None, config=None):
"""
Takes in a GenericResourceBundle and 'converts' it into a ResourceBundle
"""
resource_bundle = ResourceBundle()
resource_bundle.template = genericResourceBundle
resource_bundle.save()
hosts = genericResourceBundle.getHosts()
# current supported case: user creating new booking
# currently unsupported: editing existing booking
physical_hosts = []
for host in hosts:
host_config = None
if config:
host_config = HostConfiguration.objects.get(bundle=config, host=host)
try:
physical_host = self.acquireHost(host, genericResourceBundle.lab.name)
except ResourceAvailabilityException:
self.fail_acquire(physical_hosts)
raise ResourceAvailabilityException("Could not provision hosts, not enough available")
try:
physical_host.bundle = resource_bundle
physical_host.template = host
physical_host.config = host_config
physical_hosts.append(physical_host)
self.configureNetworking(physical_host)
except Exception:
self.fail_acquire(physical_hosts)
raise ResourceProvisioningException("Network configuration failed.")
try:
physical_host.save()
except Exception:
self.fail_acquire(physical_hosts)
raise ModelValidationException("Saving hosts failed")
return resource_bundle
def configureNetworking(self, host):
generic_interfaces = list(host.template.generic_interfaces.all())
for int_num, physical_interface in enumerate(host.interfaces.all()):
generic_interface = generic_interfaces[int_num]
physical_interface.config.clear()
for vlan in generic_interface.vlans.all():
physical_interface.config.add(vlan)
# private interface
def acquireHost(self, genericHost, labName):
host_full_set = Host.objects.filter(lab__name__exact=labName, profile=genericHost.profile)
if not host_full_set.first():
raise ResourceExistenceException("No matching servers found")
host_set = host_full_set.filter(booked=False)
if not host_set.first():
raise ResourceAvailabilityException("No unbooked hosts match requested hosts")
host = host_set.first()
host.booked = True
host.template = genericHost
host.save()
return host
def releaseHost(self, host):
host.template = None
host.bundle = None
host.booked = False
host.save()
def fail_acquire(self, hosts):
for host in hosts:
self.releaseHost(host)
def makePDF(self, resource):
"""
fills the pod descriptor file template with info about the resource
"""
template = "dashboard/pdf.yaml"
info = {}
info['details'] = self.get_pdf_details(resource)
info['jumphost'] = self.get_pdf_jumphost(resource)
info['nodes'] = self.get_pdf_nodes(resource)
return render_to_string(template, context=info)
def get_pdf_details(self, resource):
details = {}
owner = "Anon"
email = "email@mail.com"
resource_lab = resource.template.lab
lab = resource_lab.name
location = resource_lab.location
pod_type = "development"
link = "https://wiki.opnfv.org/display/INF/Pharos+Laas"
try:
# try to get more specific info that may fail, we dont care if it does
booking_owner = booking.models.Booking.objects.get(resource=resource).owner
owner = booking_owner.username
email = booking_owner.userprofile.email_addr
except Exception:
pass
details['owner'] = owner
details['email'] = email
details['lab'] = lab
details['location'] = location
details['type'] = pod_type
details['link'] = link
return details
def get_pdf_jumphost(self, resource):
jumphost = Host.objects.get(bundle=resource, config__opnfvRole__name__iexact="jumphost")
return self.get_pdf_host(jumphost)
def get_pdf_nodes(self, resource):
pdf_nodes = []
nodes = Host.objects.filter(bundle=resource).exclude(config__opnfvRole__name__iexact="jumphost")
for node in nodes:
pdf_nodes.append(self.get_pdf_host(node))
return pdf_nodes
def get_pdf_host(self, host):
host_info = {}
host_info['name'] = host.template.resource.name
host_info['node'] = {}
host_info['node']['type'] = "baremetal"
host_info['node']['vendor'] = host.vendor
host_info['node']['model'] = host.model
host_info['node']['arch'] = host.profile.cpuprofile.first().architecture
host_info['node']['cpus'] = host.profile.cpuprofile.first().cpus
host_info['node']['cores'] = host.profile.cpuprofile.first().cores
cflags = host.profile.cpuprofile.first().cflags
if cflags and cflags.strip():
host_info['node']['cpu_cflags'] = cflags
host_info['node']['memory'] = str(host.profile.ramprofile.first().amount) + "G"
host_info['disks'] = []
for disk in host.profile.storageprofile.all():
disk_info = {}
disk_info['name'] = disk.name
disk_info['capacity'] = str(disk.size) + "G"
disk_info['type'] = disk.media_type
disk_info['interface'] = disk.interface
disk_info['rotation'] = disk.rotation
host_info['disks'].append(disk_info)
host_info['interfaces'] = []
for interface in host.interfaces.all():
iface_info = {}
iface_info['name'] = interface.name
iface_info['address'] = "unknown"
iface_info['mac_address'] = interface.mac_address
vlans = "|".join([str(vlan.vlan_id) for vlan in interface.config.all()])
iface_info['vlans'] = vlans
host_info['interfaces'].append(iface_info)
return host_info
|
