Tony Mack | e4be32f | 2014-03-11 20:45:25 -0400 | [diff] [blame^] | 1 | import os |
| 2 | import base64 |
| 3 | from collections import defaultdict |
| 4 | from netaddr import IPAddress, IPNetwork |
| 5 | from django.db.models import F, Q |
| 6 | from planetstack.config import Config |
| 7 | from observer.openstacksyncstep import OpenStackSyncStep |
| 8 | from core.models.site import SiteDeployments |
| 9 | from core.models.slice import Slice, SliceDeployments |
| 10 | from util.logger import Logger, logging |
| 11 | |
| 12 | logger = Logger(level=logging.INFO) |
| 13 | |
| 14 | class SyncSliceDeployments(OpenStackSyncStep): |
| 15 | provides=[Slice, SliceDeployments] |
| 16 | requested_interval=0 |
| 17 | |
| 18 | def fetch_pending(self): |
| 19 | # slice deployments are not visible to users. We must ensure |
| 20 | # slices are deployed at all deploymets available to their site. |
| 21 | site_deployments = SiteDeployment.objects.all() |
| 22 | site_deploy_lookup = defaultdict(list) |
| 23 | for site_deployment in site_deployments: |
| 24 | site_deploy_lookup[site_deployment.site].append(site_deployment.deployment) |
| 25 | |
| 26 | slice_deployments = SliceDeployment.objects.all() |
| 27 | slice_deploy_lookup = defaultdict(list) |
| 28 | for slice_deployment in slice_deployments: |
| 29 | slice_deploy_lookup[slice_deployment.slice].append(slice_deployment.deployment) |
| 30 | |
| 31 | for slice in Slice.objects.all(): |
| 32 | expected_deployments = site_deploy_lookup[slice.site] |
| 33 | for expected_deployment in expected_deployments: |
| 34 | if slice not in slice_deploy_lookup or \ |
| 35 | expected_deployment not in slice_deploy_lookup[slice]: |
| 36 | sd = SliceDeployments(slice=slice, deployment=expected_deployment) |
| 37 | sd.save() |
| 38 | |
| 39 | # now we can return all slice deployments that need to be enacted |
| 40 | return SliceDeployments.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None)) |
| 41 | |
| 42 | def get_next_subnet(self, deployment=None): |
| 43 | # limit ourself to 10.0.x.x for now |
| 44 | valid_subnet = lambda net: net.startswith('10.0') |
| 45 | driver = self.driver.admin_driver(deployment=deployment) |
| 46 | subnets = driver.shell.quantum.list_subnets()['subnets'] |
| 47 | ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \ |
| 48 | if valid_subnet(subnet['cidr'])] |
| 49 | ints.sort() |
| 50 | last_ip = IPAddress(ints[-1]) |
| 51 | last_network = IPNetwork(str(last_ip) + "/24") |
| 52 | next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24") |
| 53 | return next_network |
| 54 | |
| 55 | def sync_record(self, slice_deployment): |
| 56 | logger.info("sync'ing slice deployment %s" % slice_deployment) |
| 57 | if not slice_deployment.tenant_id: |
| 58 | nova_fields = {'tenant_name': slice_deployment.slice.name, |
| 59 | 'description': slice_deployment.slice.description, |
| 60 | 'enabled': slice_deployment.slice.enabled} |
| 61 | driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name) |
| 62 | tenant = driver.create_tenant(**nova_fields) |
| 63 | slice_deployment.tenant_id = tenant.id |
| 64 | |
| 65 | # XXX give caller an admin role at the tenant they've created |
| 66 | driver.add_user_role(slice_deployment.slice.creator.kuser_id, tenant.id, 'admin') |
| 67 | |
| 68 | # refresh credentials using this tenant |
| 69 | client_driver = self.driver.client_driver(tenant=tenant.name, |
| 70 | deployment=slice_deployment.deployment.name) |
| 71 | |
| 72 | # create network |
| 73 | network = client_driver.create_network(slice.name) |
| 74 | slice_deployment.network_id = network['id'] |
| 75 | |
| 76 | # create router |
| 77 | router = client_driver.create_router(slice.name) |
| 78 | slice_deployment.router_id = router['id'] |
| 79 | |
| 80 | # create subnet for slice's private network |
| 81 | next_subnet = self.get_next_subnet(deployment=slice_deployment.deployment.name) |
| 82 | cidr = str(next_subnet.cidr) |
| 83 | ip_version = next_subnet.version |
| 84 | start = str(next_subnet[2]) |
| 85 | end = str(next_subnet[-2]) |
| 86 | subnet = client_driver.create_subnet(name=slice.name, |
| 87 | network_id = network['id'], |
| 88 | cidr_ip = cidr, |
| 89 | ip_version = ip_version, |
| 90 | start = start, |
| 91 | end = end) |
| 92 | slice_deployment.subnet_id = subnet['id'] |
| 93 | # add subnet as interface to slice's router |
| 94 | client_driver.add_router_interface(router['id'], subnet['id']) |
| 95 | # add external route |
| 96 | client_driver.add_external_route(subnet) |
| 97 | |
| 98 | |
| 99 | if slice_deployment.id and slice_deployment.tenant_id: |
| 100 | driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name) |
| 101 | driver.update_tenant(slice_deployment.tenant_id, |
| 102 | description=slice_deployment.slice.description, |
| 103 | enabled=slice_deployment.slice.enabled) |
| 104 | |
| 105 | slice_deployment.save() |