def _start_lio(iqn, portal_port, device): try: storage = rtslib_fb.BlockStorageObject(name=iqn, dev=device) target = rtslib_fb.Target(rtslib_fb.FabricModule('iscsi'), iqn, mode='create') tpg = rtslib_fb.TPG(target, mode='create') # disable all authentication tpg.set_attribute('authentication', '0') tpg.set_attribute('demo_mode_write_protect', '0') tpg.set_attribute('generate_node_acls', '1') # lun=1 is hardcoded in ironic rtslib_fb.LUN(tpg, storage_object=storage, lun=1) tpg.enable = 1 except rtslib_fb.utils.RTSLibError as exc: msg = 'Failed to create a target: {}'.format(exc) raise errors.ISCSIError(msg) try: # bind to the default port on all interfaces listen_ip = netutils.wrap_ipv6(netutils.get_wildcard_address()) rtslib_fb.NetworkPortal(tpg, listen_ip, portal_port) except rtslib_fb.utils.RTSLibError as exc: msg = 'Failed to publish a target: {}'.format(exc) raise errors.ISCSIError(msg)
def create_filtered_volume(req, handler=None, name=None, filters=None, device=None, serial=None): filters = filters or [] handler = handler or "mp_filter_stack" if not name: raise TargetdError(GENERAL_TARGETD_ERROR, "No name specified.") err = _alnum(name, extras='_-') if err: raise TargetdError(GENERAL_TARGETD_ERROR, "%r: %s" % (name, err)) if not (device or serial): raise TargetdError(GENERAL_TARGETD_ERROR, "No device specified.") if serial and not device: device = _device_from_serial(serial) if not device or not os.path.exists(device): raise TargetdError(GENERAL_TARGETD_ERROR, "Device not found.") _validate_filters(filters) filterstack = '>'.join(filters) if filterstack: filterstack += '>' config_str = handler + '/>' + filterstack + device filtered_dev = rtslib.UserBackedStorageObject(name, config=config_str, size=_device_size(device)) log.debug("Created %s on %s" % (name, filterstack + device)) tcm_loop = rtslib.FabricModule("loopback") target = rtslib.Target(tcm_loop) tpg = rtslib.TPG(target, 1) lun = rtslib.LUN(tpg, 0, filtered_dev) log.debug("Created loopback target %s on %s" % (target.wwn, name)) for delay in range(1, 4): time.sleep(delay) dev = _device_from_wwn(filtered_dev.wwn) if dev: log.debug("Target %s is at %s" % (target.wwn, dev)) return dev
def create(backing_device, name, userid, password, iser_enabled, initiator_iqns=None, portals_ips=None, portals_port=3260): # List of IPS that will not raise an error when they fail binding. # Originally we will fail on all binding errors. ips_allow_fail = () try: rtsroot = rtslib_fb.root.RTSRoot() except rtslib_fb.utils.RTSLibError: print(_('Ensure that configfs is mounted at /sys/kernel/config.')) raise # Look to see if BlockStorageObject already exists for x in rtsroot.storage_objects: if x.name == name: # Already exists, use this one return so_new = rtslib_fb.BlockStorageObject(name=name, dev=backing_device) target_new = rtslib_fb.Target(rtslib_fb.FabricModule('iscsi'), name, 'create') tpg_new = rtslib_fb.TPG(target_new, mode='create') tpg_new.set_attribute('authentication', '1') lun_new = rtslib_fb.LUN(tpg_new, storage_object=so_new) if initiator_iqns: initiator_iqns = initiator_iqns.strip(' ') for i in initiator_iqns.split(','): acl_new = rtslib_fb.NodeACL(tpg_new, i, mode='create') acl_new.chap_userid = userid acl_new.chap_password = password rtslib_fb.MappedLUN(acl_new, lun_new.lun, lun_new.lun) tpg_new.enable = 1 # If no ips are given we'll bind to all IPv4 and v6 if not portals_ips: portals_ips = ('0.0.0.0', '::0') # TODO(emh): Binding to IPv6 fails sometimes -- let pass for now. ips_allow_fail = ('::0',) for ip in portals_ips: try:
def create(backing_device, name, userid, password, iser_enabled, initiator_iqns=None, portals_ips=None, portals_port=3260): # List of IPS that will not raise an error when they fail binding. # Originally we will fail on all binding errors. ips_allow_fail = () try: rtsroot = rtslib_fb.root.RTSRoot() except rtslib_fb.utils.RTSLibError: print(_('Ensure that configfs is mounted at /sys/kernel/config.')) raise # Look to see if BlockStorageObject already exists for x in rtsroot.storage_objects: if x.name == name: # Already exists, use this one return so_new = rtslib_fb.BlockStorageObject(name=name, dev=backing_device) target_new = rtslib_fb.Target(rtslib_fb.FabricModule('iscsi'), name, 'create') tpg_new = rtslib_fb.TPG(target_new, mode='create') tpg_new.set_attribute('authentication', '1') lun_new = rtslib_fb.LUN(tpg_new, storage_object=so_new) if initiator_iqns: initiator_iqns = initiator_iqns.strip(' ') for i in initiator_iqns.split(','): acl_new = rtslib_fb.NodeACL(tpg_new, i, mode='create') acl_new.chap_userid = userid acl_new.chap_password = password rtslib_fb.MappedLUN(acl_new, lun_new.lun, lun_new.lun) tpg_new.enable = 1 # If no ips are given we'll bind to all IPv4 and v6 if not portals_ips: portals_ips = ('0.0.0.0', '::0') # TODO(emh): Binding to IPv6 fails sometimes -- let pass for now. ips_allow_fail = ('::0', ) for ip in portals_ips: try: portal = rtslib_fb.NetworkPortal(tpg_new, ip, portals_port, mode='any') except rtslib_fb.utils.RTSLibError: raise_exc = ip not in ips_allow_fail msg_type = 'Error' if raise_exc else 'Warning' print( _('%(msg_type)s: creating NetworkPortal: ensure port ' '%(port)d on ip %(ip)s is not in use by another service.') % { 'msg_type': msg_type, 'port': portals_port, 'ip': ip }) if raise_exc: raise else: try: if iser_enabled == 'True': portal.iser = True except rtslib_fb.utils.RTSLibError: print( _('Error enabling iSER for NetworkPortal: please ensure ' 'that RDMA is supported on your iSCSI port %(port)d ' 'on ip %(ip)s.') % { 'port': portals_port, 'ip': ip }) raise
#!/usr/bin/env python import rtslib_fb import sys i = rtslib_fb.FabricModule("iscsi") targets = list(i.targets) t = targets[0] tpg = list(t.tpgs)[0] tpg.set_attribute("cache_dynamic_acls", 1) tpg.set_attribute("generate_node_acls", 1)
def create_base_user_backstores( name, config, size, userid, password, iser_enabled, initiator_iqns=None, portals_ips=None, portals_port=3260): ''' This function allow you to create a target base an userspace backstores, for example, user:rbd, user:glfs, user:qcow etc. you should install and run tcmu-runner first, see more information: https://github.com/open-iscsi/tcmu-runner ''' # List of IPS that will not raise an error when they fail binding. # Originally we will fail on all binding errors. ips_allow_fail = () try: rtsroot = rtslib_fb.root.RTSRoot() except rtslib_fb.utils.RTSLibError: print(_('Ensure that configfs is mounted at /sys/kernel/config.')) raise # Look to see if UserBackedStorageObject already exists for x in rtsroot.storage_objects: if x.name == name: # Already exists, use this one return # create an object of class UserBackedStorageObject: so_new so_new = rtslib_fb.UserBackedStorageObject(name=name, config=config, size=size) # create an object of class Target: target_new target_new = rtslib_fb.Target(rtslib_fb.FabricModule('iscsi'), name, 'create') # create an object of class TPG: tpg_new tpg_new = rtslib_fb.TPG(target_new, mode='create') tpg_new.set_attribute('authentication', '1') # create an object of class LUN: lun_new lun_new = rtslib_fb.LUN(tpg_new, storage_object=so_new) if initiator_iqns: initiator_iqns = initiator_iqns.strip(' ') for i in initiator_iqns.split(','): acl_new = rtslib_fb.NodeACL(tpg_new, i, mode='create') acl_new.chap_userid = userid acl_new.chap_password = password rtslib_fb.MappedLUN(acl_new, lun_new.lun, lun_new.lun) tpg_new.enable = 1 # If no ips are given we'll bind to all IPv4 and v6 if not portals_ips: portals_ips = ('0.0.0.0', '[::0]') # TODO(emh): Binding to IPv6 fails sometimes -- let pass for now. ips_allow_fail = ('[::0]',) for ip in portals_ips: try: # rtslib expects IPv6 addresses to be surrounded by brackets portal = rtslib_fb.NetworkPortal(tpg_new, _canonicalize_ip(ip), portals_port, mode='any') except rtslib_fb.utils.RTSLibError: raise_exc = ip not in ips_allow_fail msg_type = 'Error' if raise_exc else 'Warning' print(_('%(msg_type)s: creating NetworkPortal: ensure port ' '%(port)d on ip %(ip)s is not in use by another service.') % {'msg_type': msg_type, 'port': portals_port, 'ip': ip}) if raise_exc: raise else: try: if iser_enabled == 'True': portal.iser = True except rtslib_fb.utils.RTSLibError: print(_('Error enabling iSER for NetworkPortal: please ensure ' 'that RDMA is supported on your iSCSI port %(port)d ' 'on ip %(ip)s.') % {'port': portals_port, 'ip': ip}) raise