def update_lb(conf, tenant_id, lb_id, lb_body): lb_ref = db_api.loadbalancer_get(conf, lb_id, tenant_id=tenant_id) old_lb_ref = copy.deepcopy(lb_ref) db_api.pack_update(lb_ref, lb_body) lb_ref = db_api.loadbalancer_update(conf, lb_id, lb_ref) if (lb_ref['algorithm'] == old_lb_ref['algorithm'] and lb_ref['protocol'] == old_lb_ref['protocol']): LOG.debug("In LB %r algorithm and protocol have not changed, " "nothing to do on the device %r.", lb_ref['id'], lb_ref['device_id']) return sf_ref = db_api.serverfarm_get_all_by_lb_id(conf, lb_ref['id'])[0] if lb_ref['algorithm'] != old_lb_ref['algorithm']: predictor_ref = db_api.predictor_get_by_sf_id(conf, sf_ref['id']) db_api.predictor_update(conf, predictor_ref['id'], {'type': lb_ref['algorithm']}) vips = db_api.virtualserver_get_all_by_sf_id(conf, sf_ref['id']) if lb_ref['protocol'] != old_lb_ref['protocol']: vip_update_values = {'protocol': lb_ref['protocol']} for vip in vips: db_api.pack_update(vip, vip_update_values) db_api.virtualserver_update(conf, vip['id'], vip) servers = db_api.server_get_all_by_sf_id(conf, sf_ref['id']) probes = db_api.probe_get_all_by_sf_id(conf, sf_ref['id']) stickies = db_api.sticky_get_all_by_sf_id(conf, sf_ref['id']) device_ref = scheduler.reschedule(conf, lb_ref) if device_ref['id'] != lb_ref['device_id']: from_driver = drivers.get_device_driver(conf, lb_ref['device_id']) to_driver = drivers.get_device_driver(conf, device_ref['id']) lb_ref = db_api.loadbalancer_update(conf, lb_ref['id'], {'device_id': device_ref['id']}) else: from_driver = drivers.get_device_driver(conf, device_ref['id']) to_driver = from_driver with from_driver.request_context() as ctx: try: commands.delete_loadbalancer(ctx, sf_ref, vips, servers, probes, stickies) except Exception: with utils.save_and_reraise_exception(): db_api.loadbalancer_update(conf, lb_ref['id'], {'status': lb_status.ERROR}) with to_driver.request_context() as ctx: try: commands.create_loadbalancer(ctx, sf_ref, vips, servers, probes, stickies) except Exception: with utils.save_and_reraise_exception(): db_api.loadbalancer_update(conf, lb_ref['id'], {'status': lb_status.ERROR}) db_api.loadbalancer_update(conf, lb_ref['id'], {'status': lb_status.ACTIVE})
def add_probe_to_server_farm(ctx, server_farm, probe): try: ctx.device.add_probe_to_server_farm(server_farm, probe) yield except Exception: with utils.save_and_reraise_exception(): ctx.device.delete_probe_from_server_farm(server_farm, probe)
def create_vip(ctx, vip, server_farm): try: ctx.device.create_virtual_ip(vip, server_farm) db_api.virtualserver_update(ctx.conf, vip['id'], {'deployed': True}) yield except Exception: with utils.save_and_reraise_exception(): delete_vip(ctx, vip)
def create_probe(ctx, probe): try: ctx.device.create_probe(probe) db_api.probe_update(ctx.conf, probe['id'], {'deployed': True}) yield except Exception: with utils.save_and_reraise_exception(): delete_probe(ctx, probe)
def create_server_farm(ctx, sf_ref): try: predictor_ref = db_api.predictor_get_by_sf_id(ctx.conf, sf_ref['id']) ctx.device.create_server_farm(sf_ref, predictor_ref) db_api.serverfarm_update(ctx.conf, sf_ref['id'], {'deployed': True}) yield except Exception: with utils.save_and_reraise_exception(): delete_server_farm(ctx, sf_ref)
def add_rserver_to_server_farm(ctx, server_farm, rserver): try: if (rserver.get('parent_id') and rserver['parent_id'] != ""): #Nasty hack. We need to think how todo this more elegant rserver['name'] = rserver['parent_id'] ctx.device.add_real_server_to_server_farm(server_farm, rserver) yield except Exception: with utils.save_and_reraise_exception(): ctx.device.delete_real_server_from_server_farm(server_farm, rserver)
def create_lb(conf, params): node_values = params.pop('nodes', []) probe_values = params.pop('healthMonitor', []) vip_values = params.pop('virtualIps', []) lb_values = db_api.loadbalancer_pack_extra(params) lb_ref = db_api.loadbalancer_create(conf, lb_values) sf_ref = db_api.serverfarm_create(conf, {'lb_id': lb_ref['id']}) db_api.predictor_create(conf, {'sf_id': sf_ref['id'], 'type': lb_ref['algorithm']}) vip_update_values = {'protocol': lb_ref['protocol']} vips = [] for vip in vip_values: vip = db_api.virtualserver_pack_extra(vip) db_api.pack_update(vip, vip_update_values) vip['lb_id'] = lb_ref['id'] vip['sf_id'] = sf_ref['id'] vips.append(db_api.virtualserver_create(conf, vip)) servers = [] for server in node_values: server = db_api.server_pack_extra(server) server['sf_id'] = sf_ref['id'] servers.append(db_api.server_create(conf, server)) probes = [] for probe in probe_values: probe = db_api.probe_pack_extra(probe) probe['lb_id'] = lb_ref['id'] probe['sf_id'] = sf_ref['id'] probes.append(db_api.probe_create(conf, probe)) device_ref = scheduler.schedule(conf, lb_ref) db_api.loadbalancer_update(conf, lb_ref['id'], {'device_id': device_ref['id']}) device_driver = drivers.get_device_driver(conf, device_ref['id']) with device_driver.request_context() as ctx: try: commands.create_loadbalancer(ctx, sf_ref, vips, servers, probes, []) except Exception: with utils.save_and_reraise_exception(): db_api.loadbalancer_update(conf, lb_ref['id'], {'status': lb_status.ERROR, 'deployed': False}) db_api.loadbalancer_update(conf, lb_ref['id'], {'status': lb_status.ACTIVE, 'deployed': True}) return lb_ref['id']
def create_rserver(ctx, rs): try: # We can't create multiple RS with the same IP. So parent_id points to # RS which already deployed and has this IP LOG.debug("Creating rserver command execution with rserver: %s", rs) LOG.debug("RServer parent_id: %s", rs['parent_id']) if not rs['parent_id']: ctx.device.create_real_server(rs) rs['deployed'] = 'True' db_api.server_update(ctx.conf, rs['id'], rs) yield except Exception: with utils.save_and_reraise_exception(): ctx.device.delete_real_server(rs) rs['deployed'] = 'False' db_api.server_update(ctx.conf, rs['id'], rs)