starlingx/metal
Code Issues Proposed changes
99a871c7d9
metal/tools/rvmc/centos/docker/rvmc.py
Eric MacDonald d46c9c55a9 Redfish Virtual Media Controller enhancements 
Adding support for additional server that responds to a number of
redfish requests with the 204 (OK but with no response content).

This update fixes http 204 status handling to expect no response
content.

This update also adds support for servers that download image at
insertion time and have short connection timeout periods that cannot
be changed.

1. Image Insertion: add image download monitoring phase to image
   insertion.
   - to accommodate for servers that load the image during insertion

2. Image Eject: Modify to retry eject and poll for ejection complete.
   - to handle case where the eject is called while a server is aready
     downloading an image.

3. Power Control: Change host power control operation from a 10 second
   inline wait to a 10 x 1sec power state change verification loop
   - avoid server issue that leads to redfish client connection timeout
     due to inactivity. Also extended the power control timeout to
     handled servers that aer slow.

This update also adds the following work around to existing redfish
python library issue.

1. BMC Ping: Verify bmc is pingable before redfish client connect.
   - to avoid redfish client python library hang issue when bmc ip
     is unreachable.

This update also implements the following debug and robustness
improvements:

1. Switch from single to multi line progress to provide better progress
   detail.
2. Add redfish client request execution duration time to the http
   status logs.
3. Add ipv6 bool to control object to so only a single lookup is
   required.
4. Pair action stage logs with action verified log.
5. Fixed 2 logs that didn't have proper parameter format layout.
6. Various logging changes to assist in future issue debug.
7. Verify container continues to work with existing servers.

Change-Id: I9c90ac03ece220b12708594adea582b9f640cdf3
Closes-Bug: 1889086
Signed-off-by: Eric MacDonald <eric.macdonald@windriver.com>
2020-08-17 21:14:50 +00:00

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#!/usr/bin/python3
###############################################################################
#
# Copyright (c) 2019-2020 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
"""Redfish Virtual Media Controller"""
###############################################################################
#
# This Redfish Virtual Media Controller forces an install of a specified BMC's
# host using the Redfish Platform management protocol.
#
# To do so the following Redfish operations are performed
#
# Step 1: Client Connect ... Establish a client connection to the BMC
# Step 2: Root Query ... Learn Redfish Services offered by the BMC
# Step 3: Find CD/DVD ... Locate the virtual media CD/DVD device
# Step 4: Power Off Host ... Host power needs to be off
# Step 5: Eject Iso ... Eject iso if needed
# Step 6: Inject Iso ... Inject the URL based ISO image into CD/DVD
# Step 7: Force DVD Boot ... Set Net boot device to be CD/DVD
# Step 8: Power On Host ... Host will boot and install from DVD
#
# Note: All server starting state conditions such as the server running or
# being stuck in POST, say at the grub prompt due to previous host boot
# failure, the host needs to be in the powered off state for the ISO
# Insertion and Set DVD for Next Boot steps.
#
# Calling Sequence: Single Server Config
#
# > rvmc.py
#
# Config file assumed to be '/etc/rvmc.yaml' with the following format
#
# bmc_address: <bmc ip address>
# bmc_username: <the bmc username>
# bmc_password: <base64 encoded password>
# image: http://<ip>:<port>/<path>/bootimage.iso
#
# Real Example:
#
# bmc_address: 123.45.67.89
# bmc_username: root
# bmc_password: TGk2OW51eCo=
# image: http://[2620:10a:a001:a103::81]:8080/iso/sub_cloud_bootimage.iso
#
# Optional Arguments: Additional arguments inform the tool to look for a
# multi target config file and enable debug logs
#
# --target <list of one or more comma separated targets>
#
# Multi Server Config : Each BMC is represented by an arbitrary target name
# ------------------- under a primary label called virtual_media_iso.
#
# Config file assumed to be '/etc/rvmc.yaml' with the following format
#
# virtual_media_iso:
# dcloud1:
# bmc_address: <bmc ip address>
# bmc_username: <the bmc username>
# bmc_password: <base64 encoded>
# image: http://<ip>:<port>/<path>/bootimage.iso
# dcloud2:
# bmc_address: <bmc ip address>
# bmc_username: <the bmc username>
# bmc_password: <base64 encoded>
# image: http://<ip>:<port>/<path>/bootimage.iso
# dcloud3:
# bmc_address: <bmc ip address>
# bmc_username: <the bmc username>
# bmc_password: <base64 encoded>
# image: http://<ip>:<port>/<path>/bootimage.iso
#
# > rvmc.py --target dcloud1,dcloud2,dcloud3 --debug level
#
# --debug <0 .. 4>
#
# Note: 0 no debug info
# 1 = execution stage
# 2 + http request logs
# 3 + headers and payloads and misc other
# 4 + json output of all command responses
#
# > rvmc.py --target dcloud1,dcloud2,dcloud3 --debug <level>
#
###############################################################################
#
# Code structure: Note: any error causes error log, session close and exit
#
# parse command line arguments
#
# for each target
# create object
#
# for each object
# execute(object)
# _redfish_client_connect ... connect to bmc
# _redfish_root_query ... get base url tree
# _redfish_create_session ... authenticated session
# _redfish_get_managers ... get managers urls
# _redfish_get_systems_members .. get systems members info
# _redfish_get_vm_url ... get cd/dvd vm url
# _redfish_load_vm_actions ... get eject/insert action urls/info
# _redfish_poweroff_host ... tell bmc to power-off the host
# _redfish_eject_image ... eject current media if present
# _redfish_insert_image ... insert and verify insertion of iso
# _redfish_set_boot_override ... set boot from cd/dvd on next reset
# _redfish_poweron_host ... tell bmc to power-on the host
#
###############################################################################
import argparse
import base64
import datetime
import json
import os
import socket
import sys
import time
import yaml
# Import Redfish Python Library
# Module: https://pypi.org/project/redfish/
import redfish
FEATURE_NAME = 'Redfish Virtual Media Controller'
VERSION_MAJOR = 2
VERSION_MINOR = 1
POWER_ON = 'On'
POWER_OFF = "Off"
# The host system's mounted rvmc config file
CONFIG_FILE = '/etc/rvmc.yaml'
# Parse command line arguments
# ----------------------------
parser = argparse.ArgumentParser(description=FEATURE_NAME)
parser.add_argument("--target", type=str, required=False,
help="One or more bmc host descriptor targets ;\n"
"type: comma delimited target list")
parser.add_argument("--debug", type=int, required=False, default=0,
help="Optional debug level ; 1..4")
# get command line arguments
args = parser.parse_args()
# get debug level
debug = args.debug
# target list ; assumes none or comma delimited list
targets = []
if args.target and args.target != 'None':
targets = args.target.split(',')
def t():
"""
Return current time for log functions
"""
return datetime.datetime.now().replace(microsecond=0)
def ilog(string):
"""
Info Log Utility
"""
sys.stdout.write("\n%s Info : %s" % (t(), string))
def elog(string):
"""
Error Log Utility
"""
sys.stdout.write("\n%s Error : %s" % (t(), string))
def alog(string):
"""
Action Log Utility
"""
sys.stdout.write("\n%s Action: %s" % (t(), string))
def dlog1(string, level=1):
"""
Debug Log - Level
"""
if debug and level <= debug:
sys.stdout.write("\n%s Debug%d: %s" % (t(), level, string))
def dlog2(string):
"""
Debug Log - Level 2
"""
dlog1(string, 2)
def dlog3(string):
"""
Debug Log - Level 3
"""
dlog1(string, 3)
def dlog4(string):
"""
Debug Log - Level 4
"""
dlog1(string, 4)
def slog(stage):
"""Execution Stage Log"""
sys.stdout.write("\n%s Stage : %s" % (t(), stage))
def rvmc_exit(code):
"""Exit not tied to object ; early fault handling"""
sys.stdout.write("\n\n")
sys.exit(code)
ilog("%s version %d.%d\n" % (FEATURE_NAME, VERSION_MAJOR, VERSION_MINOR))
dlog1("Debug : %d" % debug)
if len(targets):
dlog1("Targets : %s" % (args.target))
# start with an empty object list
target_object_list = []
# Constants
# ---------
REDFISH_ROOT_PATH = '/redfish/v1'
PRIMARY_CONFIG_LABEL = 'virtual_media_iso' # Primary Config label
SUPPORTED_VIRTUAL_MEDIA_DEVICES = ['CD', 'DVD'] # Maybe add USB to list
# headers for each request type
HDR_CONTENT_TYPE = "'Content-Type': 'application/json'"
HDR_ACCEPT = "'Accept': 'application/json'"
# they all happen to be the same right now
GET_HEADERS = {HDR_CONTENT_TYPE, HDR_ACCEPT}
POST_HEADERS = {HDR_CONTENT_TYPE, HDR_ACCEPT}
PATCH_HEADERS = {HDR_CONTENT_TYPE, HDR_ACCEPT}
# HTTP request types ; only 3 are required by this tool
POST = 'POST'
GET = 'GET'
PATCH = 'PATCH'
# max number of polling retries while waiting for some long task to complete
MAX_POLL_COUNT = 200
# some servers timeout on inter comm gaps longer than 10 secs
RETRY_DELAY_SECS = 10
# 2 second delay constant
DELAY_2_SECS = 2
def is_ipv6_address(address):
"""
Check IPv6 Address.
:param address: the ip address to compare user name.
:type address: str.
:returns bool: True if address is an IPv6 address else False
"""
try:
socket.inet_pton(socket.AF_INET6, address)
dlog3("Address : %s is IPv6" % address)
except socket.error:
dlog3("Address : %s is IPv4" % address)
return False
return True
def supported_device(devices):
"""
Supported Device
:param devices: list of devices
:type : list
:returns True if a device in devices list is in the
SUPPORTED_VIRTUAL_MEDIA_DEVICES list.
Otherwise False is returned.
"""
for device in devices:
if device in SUPPORTED_VIRTUAL_MEDIA_DEVICES:
return True
return False
def parse_target(target_name, target_dict):
"""
Parse key value pairs in target and if successful create
a vmcObject and add it to the target_object_list.
:param target_name: arbitrary target label
:type target_name: str.
:param target_dict: dictionary of key value config file pairs
:type target_dict: dictionary
:returns nothing
"""
dlog3("Parse Target: %s:%s" % (target_name, target_dict))
pw = target_dict.get('bmc_password')
if pw is None:
elog("Failed get bmc password from config file")
return
try:
pw_dec = base64.b64decode(pw).decode('utf-8')
except Exception as ex:
elog("Failed to decode bmc password found in config file (%s)" % ex)
alog("Verify config file's bmc password is base64 encoded")
return
address = target_dict.get('bmc_address')
if address is None:
elog("Failed to decode bmc password found in %s" % CONFIG_FILE)
alog("Verify config file's bmc password is base64 encoded")
return
####################################################################
#
# Add url encoding [] for ipv6 addresses only.
#
# Note: The imported redfish library produces a python exception
# on the session close if the ipv4 address has [] around it.
#
# I debugged the issue and know what it is and how to fix it
# but requires an upstream change that is not worth doing.
#
# URL Encoding for IPv6 only is an easy solution.
#
######################################################################
if is_ipv6_address(address) is True:
bmc_ipv6 = True
address = '[' + address + ']'
else:
bmc_ipv6 = False
# Create object and add it to the target object list
try:
vmc_obj = VmcObject(target_name,
address,
target_dict.get('bmc_username'),
pw,
str(pw_dec),
target_dict.get('image'))
if vmc_obj:
vmc_obj.ipv6 = bmc_ipv6
target_object_list.append(vmc_obj)
else:
elog("Unable to create control object for target:%s ; "
"skipping ..." % target_dict)
except Exception as ex:
elog("Unable to parse configuration for '%s' (%s)"
"in config file." % (target_dict, ex))
alog("Check presence and spelling of configuration"
" members under '%s' for target '%s'." %
(PRIMARY_CONFIG_LABEL, target_dict))
return
class VmcObject(object):
"""
Virtual Media Controller Class Object. One for each BMC
"""
def __init__(self,
hostname,
address,
username,
password,
password_decoded,
image):
self.target = hostname
self.uri = "https://" + address
self.url = REDFISH_ROOT_PATH
self.un = username.rstrip()
self.ip = address.rstrip()
self.pw_encoded = password.rstrip()
self.pw = password_decoded
self.img = image.rstrip()
self.ipv6 = False
self.redfish_obj = None # redfish client connection object
self.session = False # True when session for this BMC is created
self.response = None # holds response from last http request
self.response_json = None # json formatted version of above response
self.response_dict = None # dictionary version of aboe response
# redfish root query response
self.root_query_info = None # json version of the full root query
# Managers Info
self.managers_group_url = None
self.manager_members_list = []
# Virtual Media Info
self.vm_url = None
self.vm_eject_url = None
self.vm_group_url = None
self.vm_group = None
self.vm_label = None
self.vm_version = None
self.vm_actions = {}
self.vm_members_array = []
self.vm_media_types = []
# systems info
self.systems_group_url = None
self.systems_member_url = None
self.systems_members_list = []
self.systems_members = 0
self.power_state = None
# boot control info
self.boot_control_dict = {}
# systems reset info
self.reset_command_url = None
self.reset_action_dict = {}
# parsed target object info
if self.target is not None:
dlog1("Target : %s" % self.target)
dlog1("BMC IP : %s" % self.ip)
dlog1("Username : %s" % self.un)
dlog1("Password : %s" % self.pw_encoded)
dlog1("Image : %s" % self.img)
def make_request(self, operation=None, path=None, payload=None):
"""
Issue a Redfish http request,
Check response,
Convert response to dictionary format
Convert response to json format
:param operation: HTTP GET, POST or PATCH operation
:type operation: str.
:param path: url to perform request to
:type path: str
:param payload: POST or PATCH payload data
:type payload: dictionary
:returns True if request succeeded (200,202(accepted),204(no content)
"""
self.response = None
if path is not None:
url = path
else:
url = self.url
before_request_time = datetime.datetime.now().replace(microsecond=0)
try:
dlog3("Request : %s %s" % (operation, url))
if operation == GET:
dlog3("Headers : %s : %s" % (operation, GET_HEADERS))
self.response = self.redfish_obj.get(url, headers=GET_HEADERS)
elif operation == POST:
dlog3("Headers : %s : %s" % (operation, POST_HEADERS))
dlog3("Payload : %s" % payload)
self.response = self.redfish_obj.post(url,
body=payload,
headers=POST_HEADERS)
elif operation == PATCH:
dlog3("Headers : %s : %s" % (operation, PATCH_HEADERS))
dlog3("Payload : %s" % payload)
self.response = self.redfish_obj.patch(url,
body=payload,
headers=PATCH_HEADERS)
else:
elog("Unsupported operation: %s" % operation)
return False
except Exception as ex:
elog("Failed operation on '%s' (%s)" % (url, ex))
if self.response is not None:
after_request_time = datetime.datetime.now().replace(microsecond=0)
delta = after_request_time - before_request_time
# if we got a response, check its status
if self.check_ok_status(url, operation, delta.seconds) is False:
self._exit(1)
# handle 204 success with no content ; clear last response
if self.response.status == 204:
self.response = ""
return True
try:
if self.resp_dict() is True:
if self.format() is True:
dlog4("Response:\n%s\n" % self.response_json)
return True
else:
elog("Failed to parse BMC %s response '%s'" %
(operation, url))
except Exception as ex:
elog("Failed to parse BMC %s response '%s' (%s)" %
(operation, url, ex))
elog("Response:\n%s\n" % self.response)
else:
elog("No response from %s:%s" % (operation, url))
return False
def resp_dict(self):
"""
Create Response Dictionary
"""
if self.response.read:
self.response_dict = None
try:
self.response_dict = json.loads(self.response.read)
return True
except Exception as ex:
elog("Got exception key valuing response ; (%s)" % ex)
elog("Response: " % self.response.read)
else:
elog("No response from last command")
return False
def format(self):
"""
Format Response as Json
"""
self.response_json = None
try:
if self.resp_dict() is True:
self.response_json = json.dumps(self.response_dict,
indent=4,
sort_keys=True)
return True
else:
return False
except Exception as ex:
elog("Got exception formatting response ; (%s)\n" % ex)
return False
def get_key_value(self, key1, key2=None):
"""
Get key1 value if no key2 is specified.
Get key2 value from key1 value if key2 is specified.
:param : key1 value is returned if no key2 is provided.
:type : str.
:param : key2 value is optional but if provided its value is returned
:type : str
:returns key1 value or key2 value if key2 is specified
"""
value1 = self.response_dict.get(key1)
if key2 is None:
return value1
return value1.get(key2)
def check_ok_status(self, function, operation, seconds):
"""
Status
:param function: description of operation
:type : str
:param operation: http GET, POST or PATCH
:type : str
:returns True if response status is OK. Otherwise False.
"""
# Accept applicable 400 series error from an Eject Request POST.
# This error is dealt with by the eject handler.
if self.response.status in [400, 403, 404] and \
function == self.vm_eject_url and \
operation == POST:
return True
if self.response.status not in [200, 202, 204]:
try:
elog("HTTP Status : %d ; %s %s failed after %i seconds\n%s\n" %
(self.response.status,
operation, function, seconds,
json.dumps(self.response.dict,
indent=4, sort_keys=True)))
return False
except Exception as ex:
elog("check status exception ; %s" % ex)
dlog2("HTTP Status : %s %s Ok (%d) (took %i seconds)" %
(operation, function, self.response.status, seconds))
return True
def _exit(self, code):
"""
Exit the tool but not before closing an open Redfish
client connection.
:param code: the exit code
:type code: int
"""
if self.redfish_obj is not None and self.session is True:
try:
self.redfish_obj.logout()
self.redfish_obj = None
self.session = False
dlog1("Session : Closed")
except Exception as ex:
elog("Session close failed ; %s" % ex)
alog("Check BMC username and password in config file")
if code:
sys.stdout.write("\n-------------------------------------------\n")
# If exit with reason code then print that reason code and dump
# the redfish query data that was learned up to that point
elog("Code : %s" % code)
# Other info
ilog("IPv6 : %s" % self.ipv6)
# Root Query Info
ilog("Root Query: %s" % self.root_query_info)
# Managers Info
ilog("Manager URL: %s" % self.managers_group_url)
ilog("Manager Members List: %s" % self.manager_members_list)
# Systems Info
ilog("Systems Group URL: %s" % self.systems_group_url)
ilog("Systems Member URL: %s" % self.systems_member_url)
ilog("Systems Members: %d" % self.systems_members)
ilog("Systems Members List: %s" % self.systems_members_list)
ilog("Power State: %s" % self.power_state)
ilog("Reset Actions: %s" % self.reset_action_dict)
ilog("Reset Command URL: %s" % self.reset_command_url)
ilog("Boot Control Dict: %s" % self.boot_control_dict)
ilog("VM Members Array: %s" % self.vm_members_array)
ilog("VM Group URL: %s" % self.vm_group_url)
ilog("VM Group: %s" % self.vm_group)
ilog("VM URL: %s" % self.vm_url)
ilog("VM Label: %s" % self.vm_label)
ilog("VM Version: %s" % self.vm_version)
ilog("VM Actions: %s" % self.vm_actions)
ilog("VM Media Types: %s" % self.vm_media_types)
ilog("Last Response raw: %s" % self.response)
ilog("Last Response json: %s" % self.response_json)
rvmc_exit(code)
###########################################################################
#
# P R I V A T E S T A G E M E M B E R F U N C T I O N S
#
###########################################################################
###########################################################################
# Redfish Client Connect
###########################################################################
def _redfish_client_connect(self):
"""
Connect to target Redfish service.
"""
stage = 'Redfish Client Connection'
slog(stage)
# Verify ping response
ping_ok = False
ping_count = 0
MAX_PING_COUNT = 10
while ping_count < MAX_PING_COUNT and ping_ok is False:
response = 0
if self.ipv6 is True:
response = os.system("ping -6 -c 1 " +
self.ip[1:-1] + " > /dev/null 2>&1")
else:
response = os.system("ping -c 1 " +
self.ip + " > /dev/null 2>&1")
if response == 0:
ping_ok = True
else:
ping_count = ping_count + 1
ilog("BMC Ping : retry (%i of %i)" %
(ping_count, MAX_PING_COUNT))
time.sleep(2)
if ping_ok is False:
elog("Unable to ping '%s' (%i)" % (self.ip, ping_count))
alog("Check BMC ip address is pingable")
self._exit(1)
else:
ilog("BMC Ping Ok : %s (%i)" % (self.ip, ping_count))
# try to connect
connect_error = False
try:
# One time Redfish Client Object Create
self.redfish_obj = \
redfish.redfish_client(base_url=self.uri,
username=self.un,
password=self.pw,
default_prefix=REDFISH_ROOT_PATH)
if self.redfish_obj is None:
connect_error = True
elog("Unable to establish %s to BMC at %s" %
(stage, self.uri))
except Exception as ex:
connect_error = True
elog("Unable to establish %s to BMC at %s (%s)" %
(stage, self.uri, ex))
if connect_error is True:
alog("Check BMC ip address is pingable and supports Redfish")
self._exit(1)
###########################################################################
# Redfish Root Query
###########################################################################
def _redfish_root_query(self):
"""
Redfish Root Query
"""
stage = 'Root Query'
slog(stage)
if self.make_request(operation=GET, path=None) is False:
elog("Failed %s GET request")
self._exit(1)
if self.response_json:
self.root_query_info = self.response_json
# extract the systems get url needed to learn reset
# actions for the eventual reset.
#
# "Systems": { "@odata.id": "/redfish/v1/Systems/" },
#
# See Reset section below ; following iso insertion where
# systems_group_url is used.
self.systems_group_url = self.get_key_value('Systems', '@odata.id')
###########################################################################
# Create Redfish Communication Session
###########################################################################
def _redfish_create_session(self):
"""
Create Redfish Communication Session
"""
stage = 'Create Communication Session'
slog(stage)
try:
self.redfish_obj.login(auth="session")
dlog1("Session : Open")
self.session = True
except Exception as ex:
elog("Failed to Create session ; %s" % ex)
self._exit(1)
###########################################################################
# Query Redfish Managers
###########################################################################
def _redfish_get_managers(self):
"""
Query Redfish Managers
"""
stage = 'Get Managers'
slog(stage)
# Virtual Media support is located through the
# Managers link of the root query response.
#
# This section learns that Managers URL Link from the
# Root Query Result:
#
# Expecting something like this ...
#
# {
# ...
# "Managers":
# {
# "@odata.id": "/redfish/v1/Managers/"
# },
# ...
# }
# Get Managers Link from the last Get response currently
# in self.response_json
self.managers_group_url = self.get_key_value('Managers', '@odata.id')
if self.managers_group_url is None:
elog("Failed to learn BMC RedFish Managers link")
self._exit(1)
# Managers Query (/redfish/v1/Managers/)
if self.make_request(operation=GET,
path=self.managers_group_url) is False:
elog("Failed GET Managers from %s" % self.managers_group_url)
self._exit(1)
# Look for the Managers 'Members' URL Link list from the Managers Query
#
# Expect something like this ...
#
# {
# ...
# "Members":
# [
# { "@odata.id": "/redfish/v1/Managers/1/" }
# ],
# ...
# }
# Support multiple Managers in the list
self.manager_members_list = self.get_key_value('Members')
######################################################################
# Get Systems Members
######################################################################
def _redfish_get_systems_members(self):
"""
Get Systems Members
"""
stage = 'Get Systems'
slog(stage)
# Query Systems Group URL for list of Systems Members
if self.make_request(operation=GET,
path=self.systems_group_url) is False:
elog("Unable to %s Members from %s" %
(stage, self.systems_group_url))
self._exit(1)
self.systems_members_list = self.get_key_value('Members')
dlog3("Systems Members List: %s" % self.systems_members_list)
if self.systems_members_list is None:
elog("Systems Members URL GET Response\n%s" % self.response_json)
self._exit(1)
self.systems_members = len(self.systems_members_list)
if self.systems_members == 0:
elog("BMC not publishing any System Members:\n%s" %
self.response_json)
self._exit(1)
######################################################################
# Power On or Off Host
######################################################################
def _redfish_powerctl_host(self, state):
"""
Power On or Off the Host
"""
stage = 'Power ' + state + ' Host'
slog(stage)
if self.power_state == state:
# already in required state
return
# Walk the Systems Members list looking for Action support.
#
# "Members": [ { "@odata.id": "/redfish/v1/Systems/1/" } ],
#
# Loop over Systems Members List looking for Reset Actions Dictionary
info = 'Redfish Systems Actions Member'
self.systems_member_url = None
for member in range(self.systems_members):
systems_member = self.systems_members_list[member]
if systems_member:
self.systems_member_url = systems_member.get('@odata.id')
if self.systems_member_url is None:
elog("Unable to get %s URL:\n%s\n" %
(info, self.response_json))
self._exit(1)
if self.make_request(operation=GET,
path=self.systems_member_url) is False:
elog("Unable to get %s from %s" %
(info, self.systems_member_url))
self._exit(1)
# Look for Reset Actions Dictionary
self.reset_action_dict = \
self.get_key_value('Actions', '#ComputerSystem.Reset')
if self.reset_action_dict is None:
# try other URL
self.systems_member_url = None
continue
else:
# Got the Reset Actions Dictionary
# get powerState
self.power_state = self.get_key_value('PowerState')
# Ensure we don't issue current state command
if state in [POWER_OFF, POWER_ON]:
# This is a Power ON or Off command
if self.power_state == state:
dlog2("Power already %s" % state)
# ... AND we are already in that state then
# we are done. Issuing a power command while
# in the same state will error out.
# So don't do it.
return
break
info = 'Systems Reset Action Dictionary'
if self.reset_action_dict is None:
elog("BMC not publishing %s:\n%s\n" %
(info, self.response_json))
self._exit(1)
##############################################################
# Reset Actions Dictionary. This is what we are looking for #
##############################################################
#
# Look for Reset Actions label
#
# "Actions":
# {
# "#ComputerSystem.Reset":
# {
# "ResetType@Redfish.AllowableValues": [
# "On",
# "ForceOff",
# "ForceRestart",
# "Nmi",
# "PushPowerButton"
# ],
# "target":"/redfish/v1/Systems/1/Actions/ComputerSystem.Reset/"
# }
# }
#
# Need to get 2 pieces of information out of the Actions output
#
# 1. the Redfish Systems Reset Action Target
# 2. the Redfish Systems Reset Action List
#
###############################################################
info = 'Systems Reset Action Target'
self.reset_command_url = self.reset_action_dict.get('target')
if self.reset_command_url is None:
elog("Unable to get Reset Command URL (members:%d)\n%s" %
(self.systems_members, self.reset_action_dict))
self._exit(1)
# With the reset target url in hand, all that is needed now
# is the reset command this target supports
#
# The reset command list looks like this.
#
# "ResetType@Redfish.AllowableValues": [
# "On",
# "ForceOff",
# "ForceRestart",
# "Nmi",
# "PushPowerButton"
# ],
#
# Some targets support GracefulRestart and/or ForceRestart
info = 'Allowable Reset Actions'
reset_command_list = \
self.reset_action_dict.get('ResetType@Redfish.AllowableValues')
if reset_command_list is None:
elog("BMC is not publishing any %s" % info)
self._exit(1)
dlog3("ResetActions: %s" % reset_command_list)
# load the appropriate acceptable command list
if state == POWER_OFF:
acceptable_commands = ['ForceOff', 'GracefulShutdown']
elif state == POWER_ON:
acceptable_commands = ['ForceOn', 'On']
else:
acceptable_commands = ['ForceRestart', 'GracefulRestart']
# Look for the best command for the power state requested.
command = None
for acceptable_command in acceptable_commands:
for reset_command in reset_command_list:
if reset_command == acceptable_command:
command = reset_command
break
else:
continue
break
if command is None:
elog("Failed to find acceptable Power %s command in:\n%s" %
(state, reset_command_list))
self._exit(1)
# All that is left to do is POST the reset command
# to the reset_command_url.
payload = {'ResetType': command}
if self.make_request(operation=POST,
payload=payload,
path=self.reset_command_url) is False:
elog("Failed to Power %s Host" % state)
self._exit(1)
if state not in [POWER_OFF, POWER_ON]:
# no need to refresh power state if
# this was not a power command
return
# poll for requested power state.
poll_count = 0
MAX_STATE_POLL_COUNT = 60 # some servers take longer than 10 seconds
while poll_count < MAX_STATE_POLL_COUNT and self.power_state != state:
time.sleep(1)
poll_count = poll_count + 1
# get systems info
if self.make_request(operation=GET,
path=self.systems_member_url) is False:
elog("Failed to Get System State (%i of %i)" %
(poll_count, MAX_STATE_POLL_COUNT))
else:
# get powerState
self.power_state = self.get_key_value('PowerState')
if self.power_state != state:
dlog1("waiting for power %s (%s) (%d)" %
(state, self.power_state, poll_count))
if self.power_state != state:
elog("Failed to Set System Power State to %s (%s)" %
(self.power_state, self.systems_member_url))
self._exit(1)
else:
ilog("%s verified (%d)" % (stage, poll_count))
######################################################################
# Get CD/DVD Virtual Media URL
######################################################################
def _redfish_get_vm_url(self):
"""
Get CD/DVD Virtual Media URL from one of the Manager Members list
"""
stage = 'Get CD/DVD Virtual Media'
slog(stage)
if self.manager_members_list is None:
elog("Unable to index Managers Members from %s" %
self.managers_group_url)
self._exit(1)
members = len(self.manager_members_list)
if members == 0:
elog("BMC is not publishing any redfish Manager Members")
self._exit(1)
# Issue a Get from each 'Manager Member URL Link looking
# for supported virtual devices.
for member in range(members):
member_url = None
this_member = self.manager_members_list[member]
if this_member:
member_url = this_member.get('@odata.id')
if member_url is None:
continue
if self.make_request(operation=GET, path=member_url) is False:
elog("Unable to get Manager Member from %s" % member_url)
self._exit(1)
########################################################
# Query Virtual Media #
########################################################
# Look for Virtual Media Support by this Manager Member
#
# Expect something like this ...
#
# {
# ...
# "VirtualMedia":
# {
# "@odata.id": "/redfish/v1/Managers/1/VirtualMedia/"
# }
# ...
# }
self.vm_group_url = None
self.vm_group = self.get_key_value('VirtualMedia')
if self.vm_group is None:
if (member + 1) == members:
elog("Virtual Media not supported by target BMC")
self._exit(1)
else:
dlog3("Virtual Media not supported by member %d" % member)
continue
else:
try:
self.vm_group_url = self.vm_group.get('@odata.id')
except Exception:
elog("Unable to get Virtual Media Group from %s" %
self.vm_group_url)
self._exit(1)
# Query this member's Virtual Media Service Group
if self.make_request(
operation=GET, path=self.vm_group_url) is False:
elog("Failed to GET Virtual Media Service group from %s" %
self.vm_group_url)
continue
# Look for Virtual Media Device URL Links
#
# Expect something like this ...
#
# {
# ...
# "Members":
# [
# { "@odata.id": "/redfish/v1/Managers/1/VirtualMedia/1/" },
# { "@odata.id": "/redfish/v1/Managers/1/VirtualMedia/2/" }
# ],
# ...
# }
self.vm_members_array = []
try:
self.vm_members_array = self.get_key_value('Members')
vm_members = len(self.vm_members_array)
except Exception:
vm_members = 0
if vm_members == 0:
elog("No Virtual Media members found at %s" %
self.vm_group_url)
self._exit(1)
# Loop over each member's URL looking for the CD or DVD device
# Consider trying the USB device as well if BMC supports that.
for vm_member in range(vm_members):
# Look for Virtual Media Device URL
this_member = self.vm_members_array[vm_member]
if this_member:
self.vm_url = this_member.get('@odata.id')
if self.make_request(operation=GET, path=self.vm_url) is False:
elog("Failed to GET Virtual Media Service group from %s" %
self.vm_group_url)
continue
# Query Virtual Media Device Type looking for supported device
self.vm_media_types = self.get_key_value('MediaTypes')
if self.vm_media_types is None:
dlog3("No Virtual MediaTypes found at %s ; "
"trying other members" % self.vm_url)
break
dlog4("Virtual Media Service:\n%s" % self.response_json)
if supported_device(self.vm_media_types) is True:
dlog3("Supported Virtual Media found at %s ; %s" %
(self.vm_url, self.vm_media_types))
break
else:
dlog3("Virtual Media %s does not support CD/DVD ; "
"trying other members" % self.vm_url)
self.vm_url = None
if self.vm_url is None:
elog("Failed to find CD or DVD Virtual media type")
self._exit(1)
######################################################################
# Load Selected Virtual Media Version and Actions
######################################################################
def _redfish_load_vm_actions(self):
"""
Load Selected Virtual Media Version and Actions
"""
stage = 'Load Selected Virtual Media Version and Actions'
slog(stage)
if self.vm_url is None:
elog("Failed to find CD or DVD Virtual media type")
self._exit(1)
# Extract Virtual Media Version and Insert/Eject Actions
#
# Looks something like this. First half of odata.type is the VM label
#
# {
# ...
# "@odata.type": "#VirtualMedia.v1_2_0.VirtualMedia",
# "Actions": {
# "#VirtualMedia.EjectMedia":
# {
# "target" :
# ".../Managers/1/VirtualMedia/2/Actions/VirtualMedia.EjectMedia/"
# },
# "#VirtualMedia.InsertMedia":
# {
# "target":
# ".../Managers/1/VirtualMedia/2/Actions/VirtualMedia.InsertMedia/"
# }
# ...
# },
vm_data_type = self.get_key_value('@odata.type')
if vm_data_type:
self.vm_label = vm_data_type.split('.')[0]
self.vm_version = vm_data_type.split('.')[1]
self.vm_actions = self.get_key_value('Actions')
dlog1("VM Version : %s" % self.vm_version)
dlog1("VM Label : %s" % self.vm_label)
dlog3("VM Actions :\n%s\n" % self.vm_actions)
######################################################################
# Power Off Host
######################################################################
def _redfish_poweroff_host(self):
"""
Power Off the Host
"""
self._redfish_powerctl_host(POWER_OFF)
######################################################################
# Eject Current Image
######################################################################
def _redfish_eject_image(self):
"""
Eject Current Image
"""
stage = 'Eject Current Image'
slog(stage)
if self.make_request(operation=GET, path=self.vm_url) is False:
elog("Virtual media status query failed (%s)" % self.vm_url)
self._exit(1)
if self.get_key_value('Inserted') is False:
return
# Ensure there is no image inserted and handle the case where
# one might be in the process of loading.
MAX_EJECT_RETRY_COUNT = 10
eject_retry_count = 0
ejecting = True
eject_media_label = '#VirtualMedia.EjectMedia'
while eject_retry_count < MAX_EJECT_RETRY_COUNT and ejecting:
eject_retry_count = eject_retry_count + 1
vm_eject = self.vm_actions.get(eject_media_label)
if not vm_eject:
elog("Failed to get eject target (%s)" % eject_media_label)
self._exit(1)
self.vm_eject_url = vm_eject.get('target')
if self.vm_eject_url:
if self.get_key_value('Image'):
ilog("Eject Request Image %s" %
(self.get_key_value('Image')))
else:
dlog1("Eject Request")
if self.make_request(operation=POST,
payload={},
path=self.vm_eject_url) is False:
elog("Eject request failed (%s)" % self.vm_eject_url)
# accept this and continue to poll
time.sleep(DELAY_2_SECS)
poll_count = 0
while poll_count < MAX_POLL_COUNT and ejecting:
# verify the image is not in inserted
poll_count = poll_count + 1
vm_eject = self.vm_actions.get(eject_media_label)
if self.make_request(operation=GET,
path=self.vm_url) is True:
if self.get_key_value('Inserted') is False:
ilog("Ejected")
ejecting = False
elif self.get_key_value('Image'):
# if image is present then its ready to
# retry the eject, break out of poll loop
dlog1("Image Present ; %s" %
self.get_key_value('Image'))
break
else:
dlog1("Eject Wait ; Image: %s" %
self.get_key_value('Image'))
time.sleep(RETRY_DELAY_SECS)
else:
elog("Failed to query vm state (%s)" % self.vm_url)
self._exit(1)
if ejecting is True:
elog("%s wait timeout" % stage)
self._exit(1)
######################################################################
# Insert Image into Virtual Media CD/DVD
######################################################################
def _redfish_insert_image(self):
"""
Insert Image into Virtual Media CD/DVD
"""
stage = 'Insert Image into Virtual Media CD/DVD'
slog(stage)
vm_insert_url = None
vm_insert_act = self.vm_actions.get('#VirtualMedia.InsertMedia')
if vm_insert_act:
vm_insert_url = vm_insert_act.get('target')
if vm_insert_url is None:
elog("Unable to get Virtual Media Insertion URL\n%s\n" %
self.response_json)
self._exit(1)
payload = {'Image': self.img,
'Inserted': True,
'WriteProtected': True}
if self.make_request(operation=POST,
payload=payload,
path=vm_insert_url) is False:
elog("Failed to Insert Media")
self._exit(1)
# Handle case where the BMC loads the iso image during the insertion.
# In that case the 'Inserted' is True but the Image is not immediately
# mounted.
poll_count = 0
ImageInserting = True
while poll_count < MAX_POLL_COUNT and ImageInserting:
if self.make_request(operation=GET, path=self.vm_url) is False:
elog("Unable to verify Image insertion (%s)" % self.vm_url)
self._exit(1)
if self.get_key_value('Image') == self.img:
ilog("Image Insertion (took %i seconds)" %
(poll_count * RETRY_DELAY_SECS))
ImageInserting = False
else:
time.sleep(RETRY_DELAY_SECS)
poll_count = poll_count + 1
dlog1("Image Insertion Wait ; %3d secs (%3d of %3d)" %
(poll_count * RETRY_DELAY_SECS,
poll_count, MAX_POLL_COUNT))
if ImageInserting is True:
elog("Image insertion timeout")
self._exit(1)
else:
ilog("%s verified (took %i seconds)" %
(stage, poll_count * RETRY_DELAY_SECS))
if self.get_key_value('Image') != self.img:
elog("Insertion verification failed.")
ilog("Expected Image: %s" % self.img)
ilog("Detected Image: %s" % self.get_key_value('Image'))
self._exit(1)
# Verify Insertion
#
# Looking for the following values
#
dlog3("Image URI : %s" % self.get_key_value('Image'))
dlog3("ImageName : %s" % self.get_key_value('ImageName'))
dlog3("Inserted : %s" % self.get_key_value('Inserted'))
dlog3("Protected : %s" % self.get_key_value('WriteProtected'))
######################################################################
# Set Next Boot Override to CD/DVD
######################################################################
def _redfish_set_boot_override(self):
"""
Set Next Boot Override to CD/DVD
"""
stage = 'Set Next Boot Override to CD/DVD'
slog(stage)
# Walk the Systems Members list looking for Boot support.
#
# "Members": [ { "@odata.id": "/redfish/v1/Systems/1/" } ],
#
# Loop over Systems Members List looking for Boot Dictionary
info = 'Systems Boot Member'
for member in range(self.systems_members):
self.systems_member_url = None
systems_member = self.systems_members_list[member]
if systems_member:
self.systems_member_url = systems_member.get('@odata.id')
if self.systems_member_url is None:
elog("Unable to get %s from %s" %
(info, self.systems_members_list))
self._exit(1)
if self.make_request(operation=GET,
path=self.systems_member_url) is False:
elog("Unable to get %s from %s" %
(info, self.systems_member_url))
self._exit(1)
# Look for Reset Actions Dictionary
self.boot_control_dict = self.get_key_value('Boot')
if self.boot_control_dict is None:
continue
if self.boot_control_dict is None:
elog("Unable to get %s from %s" % (info, self.systems_member_url))
self._exit(1)
else:
allowable_label = 'BootSourceOverrideMode@Redfish.AllowableValues'
mode_list = self.get_key_value('Boot', allowable_label)
if mode_list is None:
payload = {"Boot": {"BootSourceOverrideEnabled": "Once",
"BootSourceOverrideTarget": "Cd"}}
else:
dlog1("Boot Override Modes: %s" % mode_list)
# Prioritize UEFI over Legacy
if "UEFI" in mode_list:
payload = {"Boot": {"BootSourceOverrideEnabled": "Once",
"BootSourceOverrideMode": "UEFI",
"BootSourceOverrideTarget": "Cd"}}
elif "Legacy" in mode_list:
payload = {"Boot": {"BootSourceOverrideEnabled": "Once",
"BootSourceOverrideMode": "Legacy",
"BootSourceOverrideTarget": "Cd"}}
else:
elog("BootSourceOverrideModes %s not supported" %
mode_list)
self._exit(0)
dlog2("Boot Override Payload: %s" % payload)
if self.make_request(operation=PATCH,
path=self.systems_member_url,
payload=payload) is False:
elog("Unable to Set Boot Override (%s)" % self.vm_url)
self._exit(1)
if self.make_request(operation=GET,
path=self.systems_member_url) is False:
elog("Unable to verify Set Boot Override (%s)" % self.vm_url)
self._exit(1)
else:
enabled = self.get_key_value('Boot', 'BootSourceOverrideEnabled')
device = self.get_key_value('Boot', 'BootSourceOverrideTarget')
mode = self.get_key_value('Boot', 'BootSourceOverrideMode')
if enabled == "Once" and \
supported_device(self.vm_media_types) is True:
ilog("%s verified [%s:%s:%s]" %
(stage, enabled, device, mode))
else:
elog("Unable to verify Set Boot Override [%s:%s:%s]" %
(enabled, device, mode))
self._exit(1)
######################################################################
# Power On Host
######################################################################
def _redfish_poweron_host(self):
"""
Power On or Off the Host
"""
self._redfish_powerctl_host(POWER_ON)
def execute(self):
"""The main controller function that executes the iso insertion
algorithm for the specified target object (self)"""
self._redfish_client_connect()
self._redfish_root_query()
self._redfish_create_session()
self._redfish_get_managers()
self._redfish_get_systems_members()
self._redfish_get_vm_url()
self._redfish_load_vm_actions()
self._redfish_eject_image()
self._redfish_poweroff_host()
self._redfish_insert_image()
self._redfish_set_boot_override()
self._redfish_poweron_host()
ilog("Done")
if self.redfish_obj is not None and self.session is True:
self.redfish_obj.logout()
dlog1("Session : Closed")
##############################################################################
#
# Load BMC target info from Config File.
# For each BMC target create target object through parse_target.
# Add each created target object to target_object_list.
# Insert BMC iso for each object in target_object_list through self.execute
#
##############################################################################
# Find, Open and Read callers config file
# ---------------------------------------
cfg = None
if not os.path.exists(CONFIG_FILE):
elog("Unable to find specified config file: %s" % CONFIG_FILE)
alog("Check config file spelling and presence\n\n")
rvmc_exit(1)
try:
with open(CONFIG_FILE, 'r') as yaml_config:
dlog1("Config File : %s" % CONFIG_FILE)
cfg = yaml.safe_load(yaml_config)
dlog3("Config Data : %s" % cfg)
except Exception as ex:
elog("Unable to open specified config file: %s (%s)" %
(CONFIG_FILE, ex))
alog("Check config file access and permissions.\n\n")
rvmc_exit(1)
# Parse the config file
# ----------------------
found = False # assume nothing is found to start
# loop over all the sections looking for the primary config label
for section in cfg:
if section == PRIMARY_CONFIG_LABEL:
# ... once found then loop over all the targets
dlog2("VM Iso Label: %s" % cfg[section])
found = True
if targets:
dlog2("Using specified target(s): %s" % targets)
else:
for target in cfg[section]:
targets.append(target)
dlog1("Targets : %s" % targets)
for target in targets:
try:
parse_target(target, cfg[section][target])
except Exception as ex:
elog("Failed to parse info from '%s' target %s" % (target, ex))
alog("Verify %s file has %s target and such target "
"is properly formatted" %
(CONFIG_FILE, target))
continue
# 'found' would still be false if the config file is for a single target
if found is False:
dlog3("Try single")
parse_target(None, cfg)
if len(target_object_list):
# Load the Iso for all loaded objects
for targetObj in target_object_list:
if targetObj.target is not None:
ilog("BMC Target : %s" % targetObj.target)
if debug == 0:
ilog("BMC IP Addr : %s" % targetObj.ip)
ilog("Host Image : %s" % targetObj.img)
targetObj.execute()
else:
elog("Operation aborted ; no valid bmc information found")
if CONFIG_FILE and cfg:
ilog("Config File :\n%s" % cfg)
rvmc_exit(1)
rvmc_exit(0)
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