| import hashlib |
| import os |
| import socket |
| import sys |
| import base64 |
| import time |
| from django.db.models import F, Q |
| from xos.config import Config |
| from observer.syncstep import SyncStep |
| from observer.ansible import run_template_ssh |
| from core.models import Service, Slice |
| from cord.models import VCPEService, VCPETenant, VOLTTenant |
| from hpc.models import HpcService, CDNPrefix |
| from util.logger import Logger, logging |
| |
| # hpclibrary will be in steps/.. |
| parentdir = os.path.join(os.path.dirname(__file__),"..") |
| sys.path.insert(0,parentdir) |
| |
| from broadbandshield import BBS |
| |
| logger = Logger(level=logging.INFO) |
| |
| class SyncVCPETenant(SyncStep): |
| provides=[VCPETenant] |
| observes=VCPETenant |
| requested_interval=0 |
| template_name = "sync_vcpetenant.yaml" |
| service_key_name = "/opt/xos/observers/vcpe/vcpe_private_key" |
| |
| def __init__(self, **args): |
| SyncStep.__init__(self, **args) |
| |
| def defer_sync(self, o, reason): |
| logger.info("defer object %s due to %s" % (str(o), reason)) |
| raise Exception("defer object %s due to %s" % (str(o), reason)) |
| |
| def fetch_pending(self, deleted): |
| if (not deleted): |
| objs = VCPETenant.get_tenant_objects().filter(Q(enacted__lt=F('updated')) | Q(enacted=None),Q(lazy_blocked=False)) |
| else: |
| objs = VCPETenant.get_deleted_tenant_objects() |
| |
| return objs |
| |
| def get_vcpe_service(self, o): |
| if not o.provider_service: |
| return None |
| |
| vcpes = VCPEService.get_service_objects().filter(id=o.provider_service.id) |
| if not vcpes: |
| return None |
| |
| return vcpes[0] |
| |
| def get_extra_attributes(self, o): |
| # This is a place to include extra attributes that aren't part of the |
| # object itself. In the case of vCPE, we need to know: |
| # 1) the addresses of dnsdemux, to setup dnsmasq in the vCPE |
| # 2) CDN prefixes, so we know what URLs to send to dnsdemux |
| # 3) BroadBandShield server addresses, for parental filtering |
| # 4) vlan_ids, for setting up networking in the vCPE VM |
| |
| vcpe_service = self.get_vcpe_service(o) |
| |
| dnsdemux_ip = None |
| if vcpe_service.backend_network_label: |
| # Connect to dnsdemux using the network specified by |
| # vcpe_service.backend_network_label |
| for service in HpcService.objects.all(): |
| for slice in service.slices.all(): |
| if "dnsdemux" in slice.name: |
| for sliver in slice.slivers.all(): |
| for ns in sliver.networkslivers.all(): |
| if ns.ip and ns.network.labels and (vcpe_service.backend_network_label in ns.network.labels): |
| dnsdemux_ip = ns.ip |
| if not dnsdemux_ip: |
| logger.info("failed to find a dnsdemux on network %s" % vcpe_service.backend_network_label) |
| else: |
| # Connect to dnsdemux using the sliver's public address |
| for service in HpcService.objects.all(): |
| for slice in service.slices.all(): |
| if "dnsdemux" in slice.name: |
| for sliver in slice.slivers.all(): |
| if dnsdemux_ip=="none": |
| try: |
| dnsdemux_ip = socket.gethostbyname(sliver.node.name) |
| except: |
| pass |
| if not dnsdemux_ip: |
| logger.info("failed to find a dnsdemux with a public address") |
| |
| dnsdemux_ip = dnsdemux_ip or "none" |
| |
| cdn_prefixes = [] |
| for prefix in CDNPrefix.objects.all(): |
| cdn_prefixes.append(prefix.prefix) |
| |
| # Broadbandshield can either be set up internally, using vcpe_service.bbs_slice, |
| # or it can be setup externally using vcpe_service.bbs_server. |
| |
| bbs_addrs = [] |
| if vcpe_service.bbs_slice: |
| if vcpe_service.backend_network_label: |
| for bbs_sliver in vcpe_service.bbs_slice.slivers.all(): |
| for ns in bbs_sliver.networkslivers.all(): |
| if ns.ip and ns.network.labels and (vcpe_service.backend_network_label in ns.network.labels): |
| bbs_addrs.append(ns.ip) |
| else: |
| logger.info("unsupported configuration -- bbs_slice is set, but backend_network_label is not") |
| if not bbs_addrs: |
| logger.info("failed to find any usable addresses on bbs_slice") |
| elif vcpe.bbs_server: |
| bbs_addrs.append(vcpe.bbs_server) |
| else: |
| logger.info("neither bbs_slice nor bbs_server is configured in the vCPE") |
| |
| vlan_ids = [] |
| if o.volt: |
| vlan_ids.append(o.volt.vlan_id) |
| |
| return {"vlan_ids": vlan_ids, |
| "dnsdemux_ip": dnsdemux_ip, |
| "cdn_prefixes": cdn_prefixes, |
| "bbs_addrs": bbs_addrs} |
| |
| def get_sliver(self, o): |
| # We need to know what slivers is associated with the object. |
| # For vCPE this is easy, as VCPETenant has a sliver field. |
| |
| return o.sliver |
| |
| def sync_record(self, o): |
| logger.info("sync'ing VCPETenant %s" % str(o)) |
| |
| sliver = self.get_sliver(o) |
| if not sliver: |
| self.defer_sync(o, "waiting on sliver") |
| return |
| |
| service = self.get_vcpe_service(o) |
| if not service: |
| # Ansible uses the service's keypair in order to SSH into the |
| # instance. It would be bad if the slice had no service. |
| |
| raise Exception("Slice %s is not associated with a service" % sliver.slice.name) |
| |
| # Make sure the slice is configured properly |
| if (service != o.sliver.slice.service): |
| raise Exception("Slice %s is associated with some service that is not %s" % (str(sliver.slice), str(service))) |
| |
| if not os.path.exists(self.service_key_name): |
| raise Exception("Service key %s does not exist" % self.service_key_name) |
| |
| service_key = file(self.service_key_name).read() |
| |
| fields = { "sliver_name": sliver.name, |
| "hostname": sliver.node.name, |
| "instance_id": sliver.instance_id, |
| "private_key": service_key, |
| "ansible_tag": "vcpe_tenant_" + str(o.id) |
| } |
| |
| # for attributes that come from VCPETenant |
| if hasattr(o, "sync_attributes"): |
| for attribute_name in o.sync_attributes: |
| fields[attribute_name] = getattr(o, attribute_name) |
| |
| # only enable filtering if we have a subscriber object (see below) |
| url_filter_enable = False |
| |
| # for attributes that come from CordSubscriberRoot |
| if o.volt and o.volt.subscriber and hasattr(o.volt.subscriber, "sync_attributes"): |
| for attribute_name in o.volt.subscriber.sync_attributes: |
| fields[attribute_name] = getattr(o.volt.subscriber, attribute_name) |
| url_filter_enable = o.volt.subscriber.url_filter_enable |
| url_filter_level = o.volt.subscriber.url_filter_level |
| url_filter_users = o.volt.subscriber.users |
| |
| fields.update(self.get_extra_attributes(o)) |
| |
| # disable url_filter if there are no bbs_addrs |
| if url_filter_enable and (not fields.get("bbs_addrs",[])): |
| logger.info("disabling url_filter because there are no bbs_addrs") |
| url_filter_enable = False |
| |
| ansible_hash = hashlib.md5(repr(sorted(fields.items()))).hexdigest() |
| quick_update = (o.last_ansible_hash == ansible_hash) |
| |
| if quick_update: |
| logger.info("quick_update triggered; skipping ansible recipe") |
| else: |
| tStart = time.time() |
| run_template_ssh(self.template_name, fields) |
| logger.info("playbook execution time %d" % int(time.time()-tStart)) |
| |
| if url_filter_enable: |
| bbs_hostname = None |
| if service.bbs_api_hostname and service.bbs_api_port: |
| bbs_hostname = service.bbs_api_hostname |
| else: |
| # TODO: extract from slice |
| bbs_hostname = "cordcompute01.onlab.us" |
| |
| if service.bbs_api_port: |
| bbs_port = service.bbs_api_port |
| else: |
| bbs_port = 8018 |
| |
| if not bbs_hostname: |
| logger.info("broadbandshield is not configured") |
| else: |
| tStart = time.time() |
| bbs = BBS(o.bbs_account, "123", bbs_hostname, bbs_port) |
| bbs.sync(url_filter_level, url_filter_users) |
| |
| if o.hpc_client_ip: |
| logger.info("associate account %s with ip %s" % (o.bbs_account, o.hpc_client_ip)) |
| bbs.associate(o.hpc_client_ip) |
| else: |
| logger.info("no hpc_client_ip to associate") |
| |
| logger.info("bbs update time %d" % int(time.time()-tStart)) |
| |
| o.last_ansible_hash = ansible_hash |
| o.save() |
| |
| def delete_record(self, m): |
| pass |
| |