Merge "Add Quick-Booking Workflow"

1 files changed, 272 insertions, 0 deletions

diff --git a/src/booking/quick_deployer.py b/src/booking/quick_deployer.py
new file mode 100644
index 0000000..9bc8c66
--- /dev/null
+++ b/src/booking/quick_deployer.py
@@ -0,0 +1,272 @@
+##############################################################################
+# 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
+##############################################################################
+
+
+import json
+import uuid
+import re
+from django.db.models import Q
+from django.contrib.auth.models import User
+from datetime import timedelta
+from django.utils import timezone
+from account.models import Lab
+
+from resource_inventory.models import (
+    Installer,
+    Image,
+    GenericResourceBundle,
+    ConfigBundle,
+    Vlan,
+    Host,
+    HostProfile,
+    HostConfiguration,
+    GenericResource,
+    GenericHost,
+    GenericInterface,
+    OPNFVRole,
+    OPNFVConfig
+)
+from resource_inventory.resource_manager import ResourceManager
+from booking.models import Booking
+from dashboard.exceptions import (
+    InvalidHostnameException,
+    ResourceAvailabilityException,
+    ModelValidationException
+)
+from api.models import JobFactory
+
+
+# model validity exceptions
+class IncompatibleInstallerForOS(Exception):
+    pass
+
+
+class IncompatibleScenarioForInstaller(Exception):
+    pass
+
+
+class IncompatibleImageForHost(Exception):
+    pass
+
+
+class ImageOwnershipInvalid(Exception):
+    pass
+
+
+class ImageNotAvailableAtLab(Exception):
+    pass
+
+
+class LabDNE(Exception):
+    pass
+
+
+class HostProfileDNE(Exception):
+    pass
+
+
+class HostNotAvailable(Exception):
+    pass
+
+
+class NoLabSelectedError(Exception):
+    pass
+
+
+class OPNFVRoleDNE(Exception):
+    pass
+
+
+class NoRemainingPublicNetwork(Exception):
+    pass
+
+
+def create_from_form(form, request):
+    quick_booking_id = str(uuid.uuid4())
+
+    host_field = form.cleaned_data['filter_field']
+    host_json = json.loads(host_field)
+    purpose_field = form.cleaned_data['purpose']
+    project_field = form.cleaned_data['project']
+    users_field = form.cleaned_data['users']
+    host_name = form.cleaned_data['hostname']
+    length = form.cleaned_data['length']
+
+    image = form.cleaned_data['image']
+    scenario = form.cleaned_data['scenario']
+    installer = form.cleaned_data['installer']
+
+    # get all initial info we need to validate
+    lab_dict = host_json['labs'][0]
+    lab_id = list(lab_dict.keys())[0]
+    lab_user_id = int(lab_id.split("_")[-1])
+    lab = Lab.objects.get(lab_user__id=lab_user_id)
+
+    host_dict = host_json['hosts'][0]
+    profile_id = list(host_dict.keys())[0]
+    profile_id = int(profile_id.split("_")[-1])
+    profile = HostProfile.objects.get(id=profile_id)
+
+    # check validity of field data before trying to apply to models
+    if not lab:
+        raise LabDNE("Lab with provided ID does not exist")
+    if not profile:
+        raise HostProfileDNE("Host type with provided ID does not exist")
+
+    # check that hostname is valid
+    if not re.match(r"(?=^.{1,253}$)(^([A-Za-z0-9-_]{1,62}\.)*[A-Za-z0-9-_]{1,63})$", host_name):
+        raise InvalidHostnameException("Hostname must comply to RFC 952 and all extensions to it until this point")
+    # check that image os is compatible with installer
+    if installer in image.os.sup_installers.all():
+        #if installer not here, we can omit that and not check for scenario
+        if not scenario:
+            raise IncompatibleScenarioForInstaller("An OPNFV Installer needs a scenario to be chosen to work properly")
+        if scenario not in installer.sup_scenarios.all():
+            raise IncompatibleScenarioForInstaller("The chosen installer does not support the chosen scenario")
+    if image.from_lab != lab:
+        raise ImageNotAvailableAtLab("The chosen image is not available at the chosen hosting lab")
+    if image.host_type != profile:
+        raise IncompatibleImageForHost("The chosen image is not available for the chosen host type")
+    if not image.public and image.owner != request.user:
+        raise ImageOwnershipInvalid("You are not the owner of the chosen private image")
+
+    # check if host type is available
+    #ResourceManager.getInstance().acquireHost(ghost, lab.name)
+    available_host_types = ResourceManager.getInstance().getAvailableHostTypes(lab)
+    if not profile in available_host_types:
+        # TODO: handle deleting generic resource in this instance along with grb
+        raise HostNotAvailable("Could not book selected host due to changed availability. Try again later")
+
+    # check if any hosts with profile at lab are still available
+    hostset = Host.objects.filter(lab=lab, profile=profile).filter(booked=False).filter(working=True)
+    if not hostset.first():
+        raise HostNotAvailable("Couldn't find any matching unbooked hosts")
+
+    # generate GenericResourceBundle
+    if len(host_json['labs']) != 1:
+        raise NoLabSelectedError("No lab was selected")
+
+    grbundle = GenericResourceBundle(owner=request.user)
+    grbundle.lab = lab
+    grbundle.name = "grbundle for quick booking with uid " + quick_booking_id
+    grbundle.description = "grbundle created for quick-deploy booking"
+    grbundle.save()
+
+    # generate GenericResource, GenericHost
+    gresource = GenericResource(bundle=grbundle, name=host_name)
+    gresource.save()
+
+    ghost = GenericHost()
+    ghost.resource = gresource
+    ghost.profile = profile
+    ghost.save()
+
+    # generate config bundle
+    cbundle = ConfigBundle()
+    cbundle.owner = request.user
+    cbundle.name = "configbundle for quick booking  with uid " + quick_booking_id
+    cbundle.description = "configbundle created for quick-deploy booking"
+    cbundle.bundle = grbundle
+    cbundle.save()
+
+    # generate OPNFVConfig pointing to cbundle
+    if installer:
+        opnfvconfig = OPNFVConfig()
+        opnfvconfig.scenario = scenario
+        opnfvconfig.installer = installer
+        opnfvconfig.bundle = cbundle
+        opnfvconfig.save()
+
+    # generate HostConfiguration pointing to cbundle
+    hconf = HostConfiguration()
+    hconf.host = ghost
+    hconf.image = image
+    hconf.opnfvRole = OPNFVRole.objects.get(name="Jumphost")
+    if not hconf.opnfvRole:
+        raise OPNFVRoleDNE("No jumphost role was found")
+    hconf.bundle = cbundle
+    hconf.save()
+
+    # construct generic interfaces
+    for interface_profile in profile.interfaceprofile.all():
+        generic_interface = GenericInterface.objects.create(profile=interface_profile, host=ghost)
+        generic_interface.save()
+    ghost.save()
+
+    # get vlan, assign to first interface
+    publicnetwork = lab.vlan_manager.get_public_vlan()
+    publicvlan = publicnetwork.vlan
+    if not publicnetwork:
+        raise NoRemainingPublicNetwork("No public networks were available for your pod")
+    lab.vlan_manager.reserve_public_vlan(publicvlan)
+
+    vlan = Vlan.objects.create(vlan_id=publicvlan, tagged=False, public=True)
+    vlan.save()
+    ghost.generic_interfaces.first().vlans.add(vlan)
+    ghost.generic_interfaces.first().save()
+
+    # generate resource bundle
+    try:
+        resource_bundle = ResourceManager.getInstance().convertResourceBundle(grbundle, config=cbundle)
+    except ResourceAvailabilityException:
+        raise ResourceAvailabilityException("Requested resources not available")
+    except ModelValidationException:
+        raise ModelValidationException("Encountered error while saving grbundle")
+
+    # generate booking
+    booking = Booking()
+    booking.purpose = purpose_field
+    booking.project = project_field
+    booking.lab = lab
+    booking.owner = request.user
+    booking.start = timezone.now()
+    booking.end = timezone.now() + timedelta(days=int(length))
+    booking.resource = resource_bundle
+    booking.pdf = ResourceManager().makePDF(booking.resource)
+    booking.save()
+    print("users field:")
+    print(users_field)
+    print(type(users_field))
+    #users_field = json.loads(users_field)
+    users_field = users_field[2:-2]
+    if users_field: #may be empty after split, if no collaborators entered
+        users_field = json.loads(users_field)
+        for collaborator in users_field:
+            user = User.objects.get(id=collaborator['id'])
+            booking.collaborators.add(user)
+        booking.save()
+
+    # generate job
+    JobFactory.makeCompleteJob(booking)
+
+
+def drop_filter(user):
+    installer_filter = {}
+    for image in Image.objects.all():
+        installer_filter[image.id] = {}
+        for installer in image.os.sup_installers.all():
+            installer_filter[image.id][installer.id] = 1
+
+    scenario_filter = {}
+    for installer in Installer.objects.all():
+        scenario_filter[installer.id] = {}
+        for scenario in installer.sup_scenarios.all():
+            scenario_filter[installer.id][scenario.id] = 1
+
+    images = Image.objects.filter(Q(public=True) | Q(owner=user))
+    image_filter = {}
+    for image in images:
+        image_filter[image.id] = {}
+        image_filter[image.id]['lab'] = 'lab_' + str(image.from_lab.lab_user.id)
+        image_filter[image.id]['host_profile'] = 'host_' + str(image.host_type.id)
+        image_filter[image.id]['name'] = image.name
+
+    return {'installer_filter': json.dumps(installer_filter),
+            'scenario_filter': json.dumps(scenario_filter),
+            'image_filter': json.dumps(image_filter)}