def clearconfig(): """ Clear the LIO configuration of the settings defined by the config object We could simply call the clear_existing method of rtsroot - but if the admin has defined additional non ceph iscsi exports they'd loose everything :param local_gw: (str) gateway name :return: (int) 0 = LIO configuration removed/not-required 4 = LUN removal problem encountered 8 = Gateway (target/tpgs) removal failed """ local_gw = this_host() # clear the current config, based on the config objects settings lio = LIO() gw = Gateway(config) # This will fail incoming IO, but wait on outstanding IO to # complete normally. We rely on the initiator multipath layer # to handle retries like a normal path failure. logger.info("Removing iSCSI target from LIO") gw.drop_target(local_gw) if gw.error: logger.error("rbd-target-gw failed to remove target objects") return 8 logger.info("Removing LUNs from LIO") lio.drop_lun_maps(config, False) if lio.error: logger.error("rbd-target-gw failed to remove LUN objects") return 4 logger.info("Active Ceph iSCSI gateway configuration removed") return 0
def delete(self): """ Clear the LIO configuration of the settings defined by the config object We could simply call the clear_existing method of rtsroot - but if the admin has defined additional non ceph iscsi exports they'd loose everything :return: (int) 0 = LIO configuration removed/not-required 4 = LUN removal problem encountered 8 = Gateway (target/tpgs) removal failed """ self.logger.debug("delete received, refreshing local state") self.config.refresh() if self.config.error: self.logger.critical("Problems accessing config object" " - {}".format(self.config.error_msg)) return 8 if "gateways" in self.config.config: if self.hostname not in self.config.config["gateways"]: self.logger.info("No gateway configuration to remove on this " "host ({})".format(self.hostname)) return 0 else: self.logger.info("Configuration object does not hold any gateway " "metadata - nothing to do") return 0 ret = 0 try: self.delete_targets() except CephiSCSIError: ret = 8 # unload disks not yet added to targets lio = LIO() lio.drop_lun_maps(self.config, False) if lio.error: self.logger.error("failed to remove LUN objects") if ret != 0: ret = 4 if ret == 0: self.logger.info("Active Ceph iSCSI gateway configuration removed") return ret
def ansible_main(): fields = {"mode": {"required": True, "type": "str", "choices": ["gateway", "disks"] } } module = AnsibleModule(argument_spec=fields, supports_check_mode=False) run_mode = module.params['mode'] changes_made = False logger.info("START - GATEWAY configuration PURGE started, run mode " "is {}".format(run_mode)) cfg = Config(logger) this_host = socket.gethostname().split('.')[0] perform_cleanup_tasks = is_cleanup_host(cfg) # # Purge gateway configuration, if the config has gateways if run_mode == 'gateway' and len(cfg.config['gateways'].keys()) > 0: lio = LIO() gateway = Gateway(cfg) if gateway.session_count() > 0: module.fail_json(msg="Unable to purge - gateway still has active " "sessions") gateway.drop_target(this_host) if gateway.error: module.fail_json(msg=gateway.error_msg) lio.drop_lun_maps(cfg, perform_cleanup_tasks) if lio.error: module.fail_json(msg=lio.error_msg) if gateway.changed or lio.changed: # each gateway removes it's own entry from the config cfg.del_item("gateways", this_host) if perform_cleanup_tasks: cfg.reset = True # drop all client definitions from the configuration object client_names = cfg.config["clients"].keys() for client in client_names: cfg.del_item("clients", client) cfg.del_item("gateways", "iqn") cfg.del_item("gateways", "created") cfg.del_item("gateways", "ip_list") cfg.commit() changes_made = True elif run_mode == 'disks' and len(cfg.config['disks'].keys()) > 0: # # Remove the disks on this host, that have been registered in the # config object # # if the owner field for a disk is set to this host, this host can # safely delete it # nb. owner gets set at rbd allocation and mapping time images_left = [] # delete_list will contain a list of pool/image names where the owner # is this host delete_list = [key.replace('.', '/', 1) for key in cfg.config['disks'] if cfg.config['disks'][key]['owner'] == this_host] if delete_list: images_left = delete_group(module, delete_list, cfg) # if the delete list still has entries we had problems deleting the # images if images_left: module.fail_json(msg="Problems deleting the following rbd's : " "{}".format(','.join(images_left))) changes_made = cfg.changed logger.debug("ending lock state variable {}".format(cfg.config_locked)) logger.info("END - GATEWAY configuration PURGE complete") module.exit_json(changed=changes_made, meta={"msg": "Purge of iSCSI settings ({}) " "complete".format(run_mode)})
def ansible_main(): fields = {"mode": {"required": True, "type": "str", "choices": ["gateway", "disks"] } } module = AnsibleModule(argument_spec=fields, supports_check_mode=False) run_mode = module.params['mode'] changes_made = False logger.info("START - GATEWAY configuration PURGE started, run mode " "is {}".format(run_mode)) cfg = Config(logger) this_host = socket.gethostname().split('.')[0] perform_cleanup_tasks = is_cleanup_host(cfg) # # Purge gateway configuration, if the config has gateways if run_mode == 'gateway' and len(cfg.config['gateways'].keys()) > 0: lio = LIO() gateway = Gateway(cfg) if gateway.session_count() > 0: module.fail_json(msg="Unable to purge - gateway still has active " "sessions") gateway.drop_target(this_host) if gateway.error: module.fail_json(msg=gateway.error_msg) lio.drop_lun_maps(cfg, perform_cleanup_tasks) if lio.error: module.fail_json(msg=lio.error_msg) if gateway.changed or lio.changed: # each gateway removes it's own entry from the config cfg.del_item("gateways", this_host) if perform_cleanup_tasks: cfg.reset = True # drop all client definitions from the configuration object client_names = cfg.config["clients"].keys() for client in client_names: cfg.del_item("clients", client) cfg.del_item("gateways", "iqn") cfg.del_item("gateways", "created") cfg.del_item("gateways", "ip_list") cfg.commit() changes_made = True elif run_mode == 'disks' and len(cfg.config['disks'].keys()) > 0: # # Remove the disks on this host, that have been registered in the # config object # # if the owner field for a disk is set to this host, this host can # safely delete it # nb. owner gets set at rbd allocation and mapping time images_left = [] # delete_list will contain a list of pool/image names where the owner # is this host delete_list = [key.replace('.', '/', 1) for key in cfg.config['disks'] if cfg.config['disks'][key]['owner'] == this_host] if delete_list: images_left = delete_group(module, delete_list, cfg) # if the delete list still has entries we had problems deleting the # images if images_left: module.fail_json(msg="Problems deleting the following rbd's : " "{}".format(','.join(images_left))) changes_made = cfg.changed logger.debug("ending lock state variable {}".format(cfg.config_locked)) logger.info("END - GATEWAY configuration PURGE complete") module.exit_json(changed=changes_made, meta={"msg": "Purge of iSCSI settings ({}) " "complete".format(run_mode)})