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#!/usr/bin/python
#
# Copyright (c) 2016 Cisco and/or its affiliates.
# 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.
import requests
import xml.etree.ElementTree as et
import re
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
BASEDN = "sys/rack-unit-1"
###
### Helper function - iterate through a list in pairs
###
def chunks(lst, chunksize):
"""Yield successive n-sized chunks from l."""
for i in range(0, len(lst), chunksize):
yield lst[i:i+chunksize]
###
### Helper function: Perform an XML request to CIMC
###
def xml_req(ip, xml, debug=False):
if debug:
print "DEBUG: XML-REQUEST:"
et.dump(xml)
headers = {'Content-Type': 'text/xml'}
req = requests.post('https://' + ip + '/nuova', headers=headers,
verify=False, data=et.tostring(xml))
resp = et.fromstring(req.content)
if debug:
print "DEBUG: XML-RESPONSE:"
et.dump(resp)
if resp.tag == 'error':
if debug:
print "XML response contains error:"
et.dump(error)
raise RuntimeError('XML response contains error')
return resp
###
### Authenticate (Log-In) to CIMC and obtain a cookie
###
def login(ip, username, password):
reqxml = et.Element('aaaLogin',
attrib={'inName':username, 'inPassword':password})
respxml = xml_req(ip, reqxml)
try:
cookie = respxml.attrib['outCookie']
except:
print "Cannot find cookie in CIMC server response."
print "CIMC server output:"
et.dump(respxml)
raise
return cookie
###
### Log out from CIMC.
###
### Note: There is a maximum session limit in CIMC and sessions to take a long
### time (10 minutes) to time out. Therefore, calling this function during
### testing is essential, otherwise one will quickly exhaust all available
### sessions.
###
def logout(ip, cookie):
reqxml = et.Element('aaaLogout', attrib={'cookie': cookie,
'inCookie': cookie})
xml_req(ip, reqxml)
###
### Power off the host
###
def powerOff(ip, cookie, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': BASEDN})
inconfig = et.SubElement(reqxml, 'inConfig')
et.SubElement(inconfig, 'computeRackUnit',
attrib={'adminPower': 'down', 'dn': BASEDN})
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Power on the host
###
def powerOn(ip, cookie, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': BASEDN})
inconfig = et.SubElement(reqxml, 'inConfig')
et.SubElement(inconfig, 'computeRackUnit',
attrib={'adminPower': 'up', 'dn': BASEDN})
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Restore BIOS to default settings
###
def restoreBiosDefaultSettings(ip, cookie, debug=False):
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'biosPlatformDefaults'})
respxml = xml_req(ip, reqxml, debug)
configs = respxml.find('outConfigs')
defaults = configs.find('biosPlatformDefaults')
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'dn': "{}/bios/bios-settings".format(BASEDN)})
inconfig = et.SubElement(reqxml, 'inConfig')
biosset = et.SubElement(inconfig, 'biosSettings')
biosset.extend(defaults)
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Apply specified BIOS settings.
###
### These must be a list of strings in XML format. Not currently very
### user friendly. Format can either be obtained from CIMC
### documention, or by setting them manually and then fetching
### BIOS settings via CIMC XML API.
###
def setBiosSettings(ip, cookie, settings, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'dn': "{}/bios/bios-settings".format(BASEDN)})
inconfig = et.SubElement(reqxml, 'inConfig')
biosset = et.SubElement(inconfig, 'biosSettings')
print "Applying settings:"
print settings
for s in settings:
x = et.fromstring(s)
et.dump(x)
biosset.append(et.fromstring(s))
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Delete any existing virtual drives
###
### WARNING: THIS WILL ERASE ALL DATA ON ALL DISKS, WITHOUT ANY CONFIRMATION
### QUESTION.
###
### The server must be POWERED ON for this to succeed.
###
def deleteAllVirtualDrives(ip, cookie, debug=False):
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'storageController'})
respxml = xml_req(ip, reqxml, debug)
configs = respxml.find('outConfigs')
for sc in configs.iter('storageController'):
if debug:
print "DEBUG: SC DN {} ID {}".format(sc.attrib['dn'],
sc.attrib['id'])
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'dn': sc.attrib['dn']})
inconfig = et.SubElement(reqxml, 'inConfig')
et.SubElement(inconfig, 'storageController',
attrib={'adminAction': 'delete-all-vds-reset-pds',
'dn': sc.attrib['dn']})
xml_req(ip, reqxml, debug)
###
### Create a single RAID-10 across all drives.
###
### The server must be POWERED ON for this to succeed.
###
def createRaid10_all(ip, cookie, debug=False):
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'storageController'})
respxml = xml_req(ip, reqxml, debug)
configs = respxml.find('outConfigs')
for sc in configs.iter('storageController'):
if debug:
print "DEBUG: SC DN {} ID {}".format(sc.attrib['dn'],
sc.attrib['id'])
#
# Find disk size and number of disks
#
disks = []
total_size = 0
for pd in sc.iter('storageLocalDisk'):
if debug:
print "DEBUG: PD {} size {}".format(pd.attrib['id'],
pd.attrib['coercedSize'])
disks.append(pd.attrib['id'])
total_size += int(pd.attrib['coercedSize'].split(' ')[0])
#
# Create a RAID10 array of all available disks, as in:
# [1,2][3,4][5,6][7,8][9,10][11,12][13,14][15,16][17,18]
#
raid_size = total_size/2
raid_span = ''
for p in list(chunks(disks, 2)):
raid_span += "[{},{}]".format(p[0], p[1])
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'dn': sc.attrib['dn']})
inconfig = et.SubElement(reqxml, 'inConfig')
et.SubElement(inconfig,
'storageVirtualDriveCreatorUsingUnusedPhysicalDrive',
attrib={'virtualDriveName': 'raid10-all',
'size': str(raid_size)+' MB',
'raidLevel': '10', 'driveGroup': raid_span,
'adminState': 'trigger'})
xml_req(ip, reqxml, debug)
###
### Create a single RAID across from empty drives as provided.
###
### The server must be POWERED ON for this to succeed.
###
def createRaid(ip, cookie, name, raidlevel, size, drives, debug=False):
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'storageController'})
respxml = xml_req(ip, reqxml, debug)
configs = respxml.find('outConfigs')
for sc in configs.iter('storageController'):
if debug:
print "DEBUG: SC DN {} ID {}".format(sc.attrib['dn'],
sc.attrib['id'])
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'dn': sc.attrib['dn']})
inconfig = et.SubElement(reqxml, 'inConfig')
et.SubElement(inconfig,
'storageVirtualDriveCreatorUsingUnusedPhysicalDrive',
attrib={'virtualDriveName': name,
'size': str(size)+' MB',
'raidLevel': raidlevel,
'driveGroup': drives,
'adminState': 'trigger'})
xml_req(ip, reqxml, debug)
###
### Enable Serial-Over-LAN (SOL) console and redirect BIOS output to
### serial console
###
def enableConsoleRedir(ip, cookie, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': "{}/bios/bios-settings".format(BASEDN)})
inconfig = et.SubElement(reqxml, 'inConfig')
bs = et.SubElement(inconfig, 'biosSettings',
attrib={'dn': "{}/bios/bios-settings".format(BASEDN)})
et.SubElement(bs,
'biosVfConsoleRedirection',
attrib={'vpConsoleRedirection': 'com-0',
'vpBaudRate': '115200'})
respxml = xml_req(ip, reqxml, debug)
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': BASEDN+'/sol-if'})
inconfig = et.SubElement(reqxml, 'inConfig')
et.SubElement(inconfig, 'solIf',
attrib={'dn': BASEDN+'/sol-if', 'adminState': 'enable',
'speed': '115200', 'comport': 'com0'})
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Boot into UEFI bootloader (we may use this to "park" the host in
### powered-on state)
###
def bootIntoUefi(ip, cookie, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': BASEDN+'/boot-policy'})
inconfig = et.SubElement(reqxml, 'inConfig')
bootDef = et.SubElement(inconfig, 'lsbootDef',
attrib={'dn': BASEDN+'/boot-policy',
'rebootOnUpdate': 'yes'})
et.SubElement(bootDef, 'lsbootEfi',
attrib={'rn': 'efi-read-only', 'order': '1',
'type': 'efi'})
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Boot via PXE. Reboot immediately.
###
def bootPXE(ip, cookie, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': BASEDN+'/boot-policy'})
inconfig = et.SubElement(reqxml, 'inConfig')
bootDef = et.SubElement(inconfig, 'lsbootDef',
attrib={'dn': BASEDN+'/boot-policy',
'rebootOnUpdate': 'yes'})
et.SubElement(bootDef, 'lsbootLan',
attrib={'rn': 'lan-read-only', 'order': '1',
'type': 'lan', 'prot': 'pxe'})
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Boot via Local HDD first, then via PXE. Do not reboot immediately.
###
def bootHDDPXE(ip, cookie, debug=False):
reqxml = et.Element('configConfMo',
attrib={'cookie': cookie, 'inHierarchical': 'false',
'dn': BASEDN+'/boot-policy'})
inconfig = et.SubElement(reqxml, 'inConfig')
bootDef = et.SubElement(inconfig, 'lsbootDef',
attrib={'dn': BASEDN+'/boot-policy',
'rebootOnUpdate': 'no'})
storage = et.SubElement(bootDef, 'lsbootStorage',
attrib={'rn': 'storage-read-write',
'access': 'read-write',
'order': '1', 'type': 'storage'})
et.SubElement(storage, 'lsbootLocalStorage',
attrib={'rn': 'local-storage'})
et.SubElement(bootDef, 'lsbootLan',
attrib={'rn': 'lan-read-only', 'order': '2',
'type': 'lan', 'prot': 'pxe'})
respxml = xml_req(ip, reqxml, debug)
return respxml
###
### Return LOM port 1 MAC address
###
def getLOMMacAddress(ip, cookie, debug=False):
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'networkAdapterUnit'})
respxml = xml_req(ip, reqxml, debug)
reqxml = et.Element('configResolveDn',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'dn': BASEDN+'/network-adapter-L/eth-1'})
respxml = xml_req(ip, reqxml, debug)
oc = respxml.find('outConfig')
netw = oc.find('networkAdapterEthIf')
if debug:
print "DEBUG: MAC address is {}".format(netw.get('mac'))
return netw.get('mac')
###
### Return all port MAC addresses
###
def getMacAddresses(ip, cookie, debug=False):
maclist = {}
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'networkAdapterUnit'})
respxml = xml_req(ip, reqxml, debug)
oc = respxml.find('outConfigs')
for adapter in oc.iter('networkAdapterUnit'):
if debug:
print "DEBUG: ADAPTER SLOT {} MODEL {}".format(adapter.attrib['slot'],
adapter.attrib['model'])
slot = adapter.attrib['slot']
maclist[slot] = {}
for port in adapter.iter('networkAdapterEthIf'):
if debug:
print "DEBUG: SLOT {} PORT {} MAC {}".format(slot,
port.attrib['id'],
port.attrib['mac'])
maclist[slot][port.attrib['id']] = port.attrib['mac'].lower()
reqxml = et.Element('configResolveClass',
attrib={'cookie': cookie, 'inHierarchical': 'true',
'classId': 'adaptorUnit'})
respxml = xml_req(ip, reqxml, debug)
oc = respxml.find('outConfigs')
for adapter in oc.iter('adaptorUnit'):
if debug:
print "DEBUG: VIC ADAPTER SLOT {} MODEL {}".format(adapter.attrib['pciSlot'],
adapter.attrib['model'])
slot = adapter.attrib['pciSlot']
maclist[slot] = {}
for port in adapter.iter('adaptorHostEthIf'):
portnum = int(re.sub('eth([0-9]+)', '\\1', port.attrib['name']))+1
if debug:
print "DEBUG: VIC SLOT {} PORT {} MAC {}".format(slot,
portnum,
port.attrib['mac'])
maclist[slot][portnum] = port.attrib['mac'].lower()
return maclist
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