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# Copyright 2020 Hewlett Packard Enterprise Development LP
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# -*- coding: utf-8 -*-
"""
An example of setting an ISCSI boot instance for HPE iLO systems
"""
import sys
import json
from redfish import RedfishClient
from redfish.rest.v1 import ServerDownOrUnreachableError
from get_resource_directory import get_resource_directory
def set_bios_iscsi(_redfishobj, iscsi_properties):
iscsi_uri = None
iscsi_data = None
resource_instances = get_resource_directory(_redfishobj)
if DISABLE_RESOURCE_DIR or not resource_instances:
#if we do not have a resource directory or want to force it's non use to find the
#relevant URI
systems_uri = _redfishobj.root.obj['Systems']['@odata.id']
systems_response = _redfishobj.get(systems_uri)
systems_members_uri = next(iter(systems_response.obj['Members']))['@odata.id']
systems_members_response = _redfishobj.get(systems_members_uri)
bios_uri = systems_members_response.obj['Bios']['@odata.id']
bios_response = _redfishobj.get(bios_uri)
iscsi_uri = bios_response.obj.Oem.Hpe.Links['iScsi']['@odata.id']
iscsi_data = _redfishobj.get(iscsi_uri)
else:
#Use Resource directory to find the relevant URI
for instance in resource_instances:
if '#HpeiSCSISoftwareInitiator.' in instance['@odata.type']:
iscsi_uri = instance['@odata.id']
iscsi_data = _redfishobj.get(iscsi_uri)
if iscsi_data:
for indx, inst in enumerate(iscsi_data.obj['iSCSISources']):
if iscsi_properties['iSCSIBootInstance'] == indx:
iscsi_data.dict['iSCSISources'][indx].update(iscsi_properties)
resp = _redfishobj.patch(iscsi_uri, {'iSCSISources' : iscsi_data.dict['iSCSISources']})
#If iLO responds with soemthing outside of 200 or 201 then lets check the
#iLO extended info error message to see what went wrong
if resp.status == 400:
try:
print(json.dumps(resp.obj['error']['@Message.ExtendedInfo'], \
indent=4, sort_keys=True))
except Exception as excp:
print(json.dumps(resp.ori, indent=4, sort_keys=True))
sys.stderr.write("A response error occurred, unable to access iLO " \
"Extended Message Info...")
elif resp.status != 200:
sys.stderr.write("An http response of \'%s\' was returned.\n" % resp.status)
else:
print("Success! A system reboot will be required to complete the change.\n")
print(json.dumps(resp.dict, indent=4, sort_keys=True))
break
if __name__ == "__main__":
# When running on the server locally use the following commented values
#SYSTEM_URL = None
#LOGIN_ACCOUNT = None
#LOGIN_PASSWORD = None
# When running remotely connect using the secured (https://) address,
# account name, and password to send https requests
# SYSTEM_URL acceptable examples:
# "https://10.0.0.100"
# "https://ilo.hostname"
SYSTEM_URL = "https://10.0.0.100"
LOGIN_ACCOUNT = "admin"
LOGIN_PASSWORD = "password"
#iscsi properties
ISCSI_PROPERTIES = {"iSCSIBootInstance": 2, \
"iSCSITargetName": "Target", \
"iSCSIAttemptName": "Empty", \
"iSCSIConnectRetry": 5}
# flag to force disable resource directory. Resource directory and associated operations are
# intended for HPE servers.
DISABLE_RESOURCE_DIR = False
try:
# Create a Redfish client object
REDFISHOBJ = RedfishClient(base_url=SYSTEM_URL, username=LOGIN_ACCOUNT, \
password=LOGIN_PASSWORD)
# Login with the Redfish client
REDFISHOBJ.login()
except ServerDownOrUnreachableError as excp:
sys.stderr.write("ERROR: server not reachable or does not support RedFish.\n")
sys.exit()
set_bios_iscsi(REDFISHOBJ, ISCSI_PROPERTIES)
REDFISHOBJ.logout()
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