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from resource_inventory.models import (
ResourceTemplate,
Image,
Server,
ResourceBundle,
ResourceProfile,
InterfaceProfile,
PhysicalNetwork
)
import json
from django.contrib.auth.models import User
from account.models import Lab
from resource_inventory.resource_manager import ResourceManager
from resource_inventory.pdf_templater import PDFTemplater
from booking.quick_deployer import update_template
from datetime import timedelta
from django.utils import timezone
from booking.models import Booking
from notifier.manager import NotificationHandler
from api.models import JobFactory
from api.models import JobStatus
def print_div():
print("====================================================================")
def book_host(owner_username, host_labid, lab_username, hostname, image_id, template_name, length_days=21, collaborator_usernames=[], purpose="internal", project="LaaS"):
"""
creates a quick booking using the given host
"""
lab = Lab.objects.get(lab_user__username=lab_username)
host = Server.objects.filter(lab=lab).get(labid=host_labid)
if host.booked:
print("Can't book host, already marked as booked")
return
else:
host.booked = True
host.save()
template = ResourceTemplate.objects.filter(public=True).get(name=template_name)
image = Image.objects.get(id=image_id)
owner = User.objects.get(username=owner_username)
new_template = update_template(template, image, hostname, owner)
rmanager = ResourceManager.getInstance()
vlan_map = rmanager.get_vlans(new_template)
# only a single host so can reuse var for iter here
resource_bundle = ResourceBundle.objects.create(template=new_template)
res_configs = new_template.getConfigs()
for config in res_configs:
try:
host.bundle = resource_bundle
host.config = config
rmanager.configureNetworking(resource_bundle, host, vlan_map)
host.save()
except Exception:
host.booked = False
host.save()
print("Failed to book host due to error configuring it")
return
new_template.save()
booking = Booking.objects.create(
purpose=purpose,
project=project,
lab=lab,
owner=owner,
start=timezone.now(),
end=timezone.now() + timedelta(days=int(length_days)),
resource=resource_bundle,
opnfv_config=None
)
booking.pdf = PDFTemplater.makePDF(booking)
booking.save()
for collaborator_username in collaborator_usernames:
try:
user = User.objects.get(username=collaborator_username)
booking.collaborators.add(user)
except Exception:
print("couldn't add user with username ", collaborator_username)
booking.save()
JobFactory.makeCompleteJob(booking)
NotificationHandler.notify_new_booking(booking)
def mark_working(host_labid, lab_username, working=True):
lab = Lab.objects.get(lab_user__username=lab_username)
server = Server.objects.filter(lab=lab).get(labid=host_labid)
print("changing server working status from ", server.working, "to", working)
server.working = working
server.save()
def mark_booked(host_labid, lab_username, booked=True):
lab = Lab.objects.get(lab_user__username=lab_username)
server = Server.objects.filter(lab=lab).get(labid=host_labid)
print("changing server booked status from ", server.booked, "to", booked)
server.booked = booked
server.save()
# returns host filtered by lab and then unique id within lab
def get_host(host_labid, lab_username):
lab = Lab.objects.get(lab_user__username=lab_username)
return Server.objects.filter(lab=lab).get(labid=host_labid)
def get_info(host_labid, lab_username):
info = {}
host = get_host(host_labid, lab_username)
info['host_labid'] = host_labid
info['booked'] = host.booked
info['working'] = host.working
info['profile'] = str(host.profile)
if host.bundle:
binfo = {}
info['bundle'] = binfo
if host.config:
cinfo = {}
info['config'] = cinfo
return info
def map_cntt_interfaces(labid: str):
"""
Use this during cntt migrations, call it with a host labid and it will change profiles for this host
as well as mapping its interfaces across. interface ens1f2 should have the mac address of interface eno50
as an invariant before calling this function
"""
host = get_host(labid, "unh_iol")
host.profile = ResourceProfile.objects.get(name="HPE x86 CNTT")
host.save()
host = get_host(labid, "unh_iol")
for iface in host.interfaces.all():
new_ifprofile = None
if iface.profile.name == "ens1f2":
new_ifprofile = InterfaceProfile.objects.get(host=host.profile, name="eno50")
else:
new_ifprofile = InterfaceProfile.objects.get(host=host.profile, name=iface.profile.name)
iface.profile = new_ifprofile
iface.save()
def detect_leaked_hosts(labid="unh_iol"):
"""
Use this to try to detect leaked hosts.
These hosts may still be in the process of unprovisioning,
but if they are not (or unprovisioning is frozen) then
these hosts are instead leaked
"""
working_servers = Server.objects.filter(working=True, lab__lab_user__username=labid)
booked = working_servers.filter(booked=True)
filtered = booked
print_div()
print("In use now:")
for booking in Booking.objects.filter(end__gte=timezone.now()):
res_for_booking = booking.resource.get_resources()
print(res_for_booking)
for resource in res_for_booking:
filtered = filtered.exclude(id=resource.id)
print_div()
print("Possibly leaked:")
for host in filtered:
print(host)
print_div()
return filtered
def booking_for_host(host_labid: str, labid="unh_iol"):
server = Server.objects.get(lab__lab_user__username=labid, labid=host_labid)
booking = server.bundle.booking_set.first()
print_div()
print(booking)
print("id:", booking.id)
print("owner:", booking.owner)
print("job (id):", booking.job, "(" + str(booking.job.id) + ")")
print_div()
return booking
def force_release_booking(booking_id):
booking = Booking.objects.get(id=booking_id)
job = booking.job
tasks = job.get_tasklist()
for task in tasks:
task.status = JobStatus.DONE
task.save()
def get_network_metadata(booking_id: int):
booking = Booking.objects.get(id=booking_id)
bundle = booking.resource
pnets = PhysicalNetwork.objects.filter(bundle=bundle).all()
metadata = {}
for pnet in pnets:
net = pnet.generic_network
mdata = {"vlan_id": pnet.vlan_id, "netname": net.name, "public": net.is_public}
metadata[net.name] = mdata
return metadata
def print_dict_pretty(a_dict):
print(json.dumps(a_dict, sort_keys=True, indent=4))
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