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##############################################################################
# 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
class ResourceManager:
instance = None
def __init__(self):
pass
@staticmethod
def getInstance():
if ResourceManager.instance is None:
ResourceManager.instance = ResourceManager()
return ResourceManager.instance
# 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:
self.fail_acquire(physical_hosts)
raise ResourceProvisioningException("Network configuration failed.")
try:
physical_host.save()
except:
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
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