#!/usr/bin/env python r""" This module contains functions having to do with machine state: get_state, check_state, wait_state, etc. The 'State' is a composite of many pieces of data. Therefore, the functions in this module define state as an ordered dictionary. Here is an example of some test output showing machine state: default_state: default_state[chassis]: On default_state[boot_progress]: OSStart default_state[operating_system]: BootComplete default_state[host]: Running default_state[os_ping]: 1 default_state[os_login]: 1 default_state[os_run_cmd]: 1 Different users may very well have different needs when inquiring about state. Support for new pieces of state information may be added to this module as needed. By using the wait_state function, a caller can start a boot and then wait for a precisely defined state to indicate that the boot has succeeded. If the boot fails, they can see exactly why by looking at the current state as compared with the expected state. """ import gen_print as gp import gen_valid as gv import gen_robot_utils as gru import gen_cmd as gc import bmc_ssh_utils as bsu from robot.libraries.BuiltIn import BuiltIn from robot.utils import DotDict import re import os import sys import imp # NOTE: Avoid importing utils.robot because utils.robot imports state.py # (indirectly) which will cause failures. gru.my_import_resource("rest_client.robot") base_path = os.path.dirname(os.path.dirname( imp.find_module("gen_robot_print")[1])) + os.sep sys.path.append(base_path + "data/") # Previously, I had this coded: # import variables as var # However, we ran into a problem where a robot program did this... # Variables ../../lib/ras/variables.py # Prior to doing this... # Library ../lib/state.py # This caused the wrong variables.py file to be selected. Attempts to fix this # have failed so far. For the moment, we will hard-code the value we need from # the file. SYSTEM_STATE_URI = "/xyz/openbmc_project/state/" # The BMC code has recently been changed as far as what states are defined and # what the state values can be. This module now has a means of processing both # the old style state (i.e. OBMC_STATES_VERSION = 0) and the new style (i.e. # OBMC_STATES_VERSION = 1). # The caller can set environment variable OBMC_STATES_VERSION to dictate # whether we're processing old or new style states. If OBMC_STATES_VERSION is # not set it will default to 1. # As of the present moment, OBMC_STATES_VERSION of 0 is for cold that is so old # that it is no longer worthwhile to maintain. The OBMC_STATES_VERSION 0 code # is being removed but the OBMC_STATES_VERSION value will stay for now in the # event that it is needed in the future. OBMC_STATES_VERSION = int(os.environ.get('OBMC_STATES_VERSION', 1)) # When a user calls get_state w/o specifying req_states, default_req_states # is used as its value. default_req_states = ['rest', 'chassis', 'bmc', 'boot_progress', 'operating_system', 'host', 'os_ping', 'os_login', 'os_run_cmd'] # valid_req_states is a list of sub states supported by the get_state function. # valid_req_states, default_req_states and master_os_up_match are used by the # get_state function. valid_req_states = ['ping', 'packet_loss', 'uptime', 'epoch_seconds', 'rest', 'chassis', 'requested_chassis', 'bmc', 'requested_bmc', 'boot_progress', 'operating_system', 'host', 'requested_host', 'attempts_left', 'os_ping', 'os_login', 'os_run_cmd'] # valid_os_req_states and default_os_req_states are used by the os_get_state # function. # valid_os_req_states is a list of state information supported by the # get_os_state function. valid_os_req_states = ['os_ping', 'os_login', 'os_run_cmd'] # When a user calls get_os_state w/o specifying req_states, # default_os_req_states is used as its value. default_os_req_states = ['os_ping', 'os_login', 'os_run_cmd'] # Presently, some BMCs appear to not keep time very well. This environment # variable directs the get_state function to use either the BMC's epoch time # or the local epoch time. USE_BMC_EPOCH_TIME = int(os.environ.get('USE_BMC_EPOCH_TIME', 0)) # Useful state constant definition(s). # default_state is an initial value which may be of use to callers. default_state = DotDict([('rest', '1'), ('chassis', 'On'), ('bmc', 'Ready'), ('boot_progress', 'OSStart'), ('operating_system', 'BootComplete'), ('host', 'Running'), ('os_ping', '1'), ('os_login', '1'), ('os_run_cmd', '1')]) # A match state for checking that the system is at "standby". standby_match_state = DotDict([('rest', '^1$'), ('chassis', '^Off$'), ('bmc', '^Ready$'), ('boot_progress', '^Off|Unspecified$'), ('operating_system', '^Inactive$'), ('host', '^Off$')]) # A match state for checking that the system is at "os running". os_running_match_state = DotDict([('chassis', '^On$'), ('bmc', '^Ready$'), ('boot_progress', 'FW Progress, Starting OS|OSStart'), ('operating_system', 'BootComplete'), ('host', '^Running$'), ('os_ping', '^1$'), ('os_login', '^1$'), ('os_run_cmd', '^1$')]) # A master dictionary to determine whether the os may be up. master_os_up_match = DotDict([('chassis', '^On$'), ('bmc', '^Ready$'), ('boot_progress', 'FW Progress, Starting OS|OSStart'), ('operating_system', 'BootComplete'), ('host', '^Running|Quiesced$')]) invalid_state_match = DotDict([('rest', '^$'), ('chassis', '^$'), ('bmc', '^$'), ('boot_progress', '^$'), ('operating_system', '^$'), ('host', '^$')]) def return_state_constant(state_name='default_state'): r""" Return the named state dictionary constant. """ return eval(state_name) def anchor_state(state): r""" Add regular expression anchors ("^" and "$") to the beginning and end of each item in the state dictionary passed in. Return the resulting dictionary. Description of Arguments: state A dictionary such as the one returned by the get_state() function. """ anchored_state = state.copy() for key, match_state_value in anchored_state.items(): anchored_state[key] = "^" + str(anchored_state[key]) + "$" return anchored_state def strip_anchor_state(state): r""" Strip regular expression anchors ("^" and "$") from the beginning and end of each item in the state dictionary passed in. Return the resulting dictionary. Description of Arguments: state A dictionary such as the one returned by the get_state() function. """ stripped_state = state.copy() for key, match_state_value in stripped_state.items(): stripped_state[key] = stripped_state[key].strip("^$") return stripped_state def compare_states(state, match_state, match_type='and'): r""" Compare 2 state dictionaries. Return True if they match and False if they don't. Note that the match_state dictionary does not need to have an entry corresponding to each entry in the state dictionary. But for each entry that it does have, the corresponding state entry will be checked for a match. Description of arguments: state A state dictionary such as the one returned by the get_state function. match_state A dictionary whose key/value pairs are "state field"/ "state value". The state value is interpreted as a regular expression. Every value in this dictionary is considered. When match_type is 'and', if each and every comparison matches, the two dictionaries are considered to be matching. If match_type is 'or', if any two of the elements compared match, the two dictionaries are considered to be matching. This value may also be any string accepted by return_state_constant (e.g. "standby_match_state"). In such a case this function will call return_state_constant to convert it to a proper dictionary as described above. match_type This may be 'and' or 'or'. """ error_message = gv.svalid_value(match_type, var_name="match_type", valid_values=['and', 'or']) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) try: match_state = return_state_constant(match_state) except TypeError: pass default_match = (match_type == 'and') for key, match_state_value in match_state.items(): # Blank match_state_value means "don't care". if match_state_value == "": continue try: match = (re.match(match_state_value, str(state[key])) is not None) except KeyError: match = False if match != default_match: return match return default_match def get_os_state(os_host="", os_username="", os_password="", req_states=default_os_req_states, os_up=True, quiet=None): r""" Get component states for the operating system such as ping, login, etc, put them into a dictionary and return them to the caller. Note that all substate values are strings. Description of arguments: os_host The DNS name or IP address of the operating system. This defaults to global ${OS_HOST}. os_username The username to be used to login to the OS. This defaults to global ${OS_USERNAME}. os_password The password to be used to login to the OS. This defaults to global ${OS_PASSWORD}. req_states This is a list of states whose values are being requested by the caller. os_up If the caller knows that the os can't possibly be up, it can improve performance by passing os_up=False. This function will then simply return default values for all requested os sub states. quiet Indicates whether status details (e.g. curl commands) should be written to the console. Defaults to either global value of ${QUIET} or to 1. """ quiet = int(gp.get_var_value(quiet, 0)) # Set parm defaults where necessary and validate all parms. if os_host == "": os_host = BuiltIn().get_variable_value("${OS_HOST}") error_message = gv.svalid_value(os_host, var_name="os_host", invalid_values=[None, ""]) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) if os_username == "": os_username = BuiltIn().get_variable_value("${OS_USERNAME}") error_message = gv.svalid_value(os_username, var_name="os_username", invalid_values=[None, ""]) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) if os_password == "": os_password = BuiltIn().get_variable_value("${OS_PASSWORD}") error_message = gv.svalid_value(os_password, var_name="os_password", invalid_values=[None, ""]) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) invalid_req_states = [sub_state for sub_state in req_states if sub_state not in valid_os_req_states] if len(invalid_req_states) > 0: error_message = "The following req_states are not supported:\n" +\ gp.sprint_var(invalid_req_states) BuiltIn().fail(gp.sprint_error(error_message)) # Initialize all substate values supported by this function. os_ping = 0 os_login = 0 os_run_cmd = 0 if os_up: if 'os_ping' in req_states: # See if the OS pings. rc, out_buf = gc.shell_cmd("ping -c 1 -w 2 " + os_host, print_output=0, show_err=0, ignore_err=1) if rc == 0: os_ping = 1 # Programming note: All attributes which do not require an ssh login # should have been processed by this point. master_req_login = ['os_login', 'os_run_cmd'] req_login = [sub_state for sub_state in req_states if sub_state in master_req_login] must_login = (len(req_login) > 0) if must_login: output, stderr, rc = bsu.os_execute_command("uptime", quiet=quiet, ignore_err=1, time_out=20) if rc == 0: os_login = 1 os_run_cmd = 1 else: gp.dprint_vars(output, stderr) gp.dprint_vars(rc, 1) os_state = DotDict() for sub_state in req_states: cmd_buf = "os_state['" + sub_state + "'] = str(" + sub_state + ")" exec(cmd_buf) return os_state def get_state(openbmc_host="", openbmc_username="", openbmc_password="", os_host="", os_username="", os_password="", req_states=default_req_states, quiet=None): r""" Get component states such as chassis state, bmc state, etc, put them into a dictionary and return them to the caller. Note that all substate values are strings. Description of arguments: openbmc_host The DNS name or IP address of the BMC. This defaults to global ${OPENBMC_HOST}. openbmc_username The username to be used to login to the BMC. This defaults to global ${OPENBMC_USERNAME}. openbmc_password The password to be used to login to the BMC. This defaults to global ${OPENBMC_PASSWORD}. os_host The DNS name or IP address of the operating system. This defaults to global ${OS_HOST}. os_username The username to be used to login to the OS. This defaults to global ${OS_USERNAME}. os_password The password to be used to login to the OS. This defaults to global ${OS_PASSWORD}. req_states This is a list of states whose values are being requested by the caller. quiet Indicates whether status details (e.g. curl commands) should be written to the console. Defaults to either global value of ${QUIET} or to 1. """ quiet = int(gp.get_var_value(quiet, 0)) # Set parm defaults where necessary and validate all parms. if openbmc_host == "": openbmc_host = BuiltIn().get_variable_value("${OPENBMC_HOST}") error_message = gv.svalid_value(openbmc_host, var_name="openbmc_host", invalid_values=[None, ""]) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) if openbmc_username == "": openbmc_username = BuiltIn().get_variable_value("${OPENBMC_USERNAME}") error_message = gv.svalid_value(openbmc_username, var_name="openbmc_username", invalid_values=[None, ""]) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) if openbmc_password == "": openbmc_password = BuiltIn().get_variable_value("${OPENBMC_PASSWORD}") error_message = gv.svalid_value(openbmc_password, var_name="openbmc_password", invalid_values=[None, ""]) if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) # NOTE: OS parms are optional. if os_host == "": os_host = BuiltIn().get_variable_value("${OS_HOST}") if os_host is None: os_host = "" if os_username is "": os_username = BuiltIn().get_variable_value("${OS_USERNAME}") if os_username is None: os_username = "" if os_password is "": os_password = BuiltIn().get_variable_value("${OS_PASSWORD}") if os_password is None: os_password = "" invalid_req_states = [sub_state for sub_state in req_states if sub_state not in valid_req_states] if len(invalid_req_states) > 0: error_message = "The following req_states are not supported:\n" +\ gp.sprint_var(invalid_req_states) BuiltIn().fail(gp.sprint_error(error_message)) # Initialize all substate values supported by this function. ping = 0 packet_loss = '' uptime = '' epoch_seconds = '' rest = '' chassis = '' requested_chassis = '' bmc = '' requested_bmc = '' boot_progress = '' operating_system = '' host = '' requested_host = '' attempts_left = '' # Get the component states. if 'ping' in req_states: # See if the OS pings. rc, out_buf = gc.shell_cmd("ping -c 1 -w 2 " + openbmc_host, print_output=0, show_err=0, ignore_err=1) if rc == 0: ping = 1 if 'packet_loss' in req_states: # See if the OS pings. cmd_buf = "ping -c 5 -w 5 " + openbmc_host +\ " | egrep 'packet loss' | sed -re 's/.* ([0-9]+)%.*/\\1/g'" rc, out_buf = gc.shell_cmd(cmd_buf, print_output=0, show_err=0, ignore_err=1) if rc == 0: packet_loss = out_buf.rstrip("\n") if 'uptime' in req_states: # Sometimes reading uptime results in a blank value. Call with # wait_until_keyword_succeeds to ensure a non-blank value is obtained. remote_cmd_buf = "read uptime filler 2>/dev/null < /proc/uptime" +\ " && [ ! -z \"${uptime}\" ] && echo ${uptime}" cmd_buf = ["BMC Execute Command", re.sub('\\$', '\\$', remote_cmd_buf), 'quiet=1', 'test_mode=0'] gp.print_issuing(cmd_buf, 0) gp.print_issuing(remote_cmd_buf, 0) try: stdout, stderr, rc =\ BuiltIn().wait_until_keyword_succeeds("10 sec", "0 sec", *cmd_buf) if rc == 0 and stderr == "": uptime = stdout except AssertionError as my_assertion_error: pass if 'epoch_seconds' in req_states: date_cmd_buf = "date -u +%s" if USE_BMC_EPOCH_TIME: cmd_buf = ["BMC Execute Command", date_cmd_buf, 'quiet=${1}'] if not quiet: gp.print_issuing(cmd_buf) status, ret_values = \ BuiltIn().run_keyword_and_ignore_error(*cmd_buf) if status == "PASS": stdout, stderr, rc = ret_values if rc == 0 and stderr == "": epoch_seconds = stdout.rstrip("\n") else: shell_rc, out_buf = gc.cmd_fnc_u(date_cmd_buf, quiet=quiet, print_output=0) if shell_rc == 0: epoch_seconds = out_buf.rstrip("\n") master_req_rest = ['rest', 'host', 'requested_host', 'operating_system', 'attempts_left', 'boot_progress', 'chassis', 'requested_chassis' 'bmc' 'requested_bmc'] req_rest = [sub_state for sub_state in req_states if sub_state in master_req_rest] need_rest = (len(req_rest) > 0) state = DotDict() if need_rest: cmd_buf = ["Read Properties", SYSTEM_STATE_URI + "enumerate", "quiet=${" + str(quiet) + "}"] gp.dprint_issuing(cmd_buf) status, ret_values = \ BuiltIn().run_keyword_and_ignore_error(*cmd_buf) if status == "PASS": state['rest'] = '1' else: state['rest'] = '0' if int(state['rest']): for url_path in ret_values: for attr_name in ret_values[url_path]: # Create a state key value based on the attr_name. try: ret_values[url_path][attr_name] = \ re.sub(r'.*\.', "", ret_values[url_path][attr_name]) except TypeError: pass # Do some key name manipulations. new_attr_name = re.sub(r'^Current|(State|Transition)$', "", attr_name) new_attr_name = re.sub(r'BMC', r'Bmc', new_attr_name) new_attr_name = re.sub(r'([A-Z][a-z])', r'_\1', new_attr_name) new_attr_name = new_attr_name.lower().lstrip("_") new_attr_name = re.sub(r'power', r'chassis', new_attr_name) if new_attr_name in req_states: state[new_attr_name] = ret_values[url_path][attr_name] for sub_state in req_states: if sub_state in state: continue if sub_state.startswith("os_"): # We pass "os_" requests on to get_os_state. continue cmd_buf = "state['" + sub_state + "'] = str(" + sub_state + ")" exec(cmd_buf) if os_host == "": # The caller has not specified an os_host so as far as we're concerned, # it doesn't exist. return state os_req_states = [sub_state for sub_state in req_states if sub_state.startswith('os_')] if len(os_req_states) > 0: # The caller has specified an os_host and they have requested # information on os substates. # Based on the information gathered on bmc, we'll try to make a # determination of whether the os is even up. We'll pass the result # of that assessment to get_os_state to enhance performance. os_up_match = DotDict() for sub_state in master_os_up_match: if sub_state in req_states: os_up_match[sub_state] = master_os_up_match[sub_state] os_up = compare_states(state, os_up_match) os_state = get_os_state(os_host=os_host, os_username=os_username, os_password=os_password, req_states=os_req_states, os_up=os_up, quiet=quiet) # Append os_state dictionary to ours. state.update(os_state) return state exit_wait_early_message = "" def set_exit_wait_early_message(value): r""" Set global exit_wait_early_message to the indicated value. This is a mechanism by which the programmer can do an early exit from wait_until_keyword_succeeds() based on some special condition. Description of argument(s): value The value to assign to the global exit_wait_early_message. """ global exit_wait_early_message exit_wait_early_message = value def check_state(match_state, invert=0, print_string="", openbmc_host="", openbmc_username="", openbmc_password="", os_host="", os_username="", os_password="", quiet=None): r""" Check that the Open BMC machine's composite state matches the specified state. On success, this keyword returns the machine's composite state as a dictionary. Description of arguments: match_state A dictionary whose key/value pairs are "state field"/ "state value". The state value is interpreted as a regular expression. Example call from robot: ${match_state}= Create Dictionary chassis=^On$ ... bmc=^Ready$ ... boot_progress=^OSStart$ ${state}= Check State &{match_state} invert If this flag is set, this function will succeed if the states do NOT match. print_string This function will print this string to the console prior to getting the state. openbmc_host The DNS name or IP address of the BMC. This defaults to global ${OPENBMC_HOST}. openbmc_username The username to be used to login to the BMC. This defaults to global ${OPENBMC_USERNAME}. openbmc_password The password to be used to login to the BMC. This defaults to global ${OPENBMC_PASSWORD}. os_host The DNS name or IP address of the operating system. This defaults to global ${OS_HOST}. os_username The username to be used to login to the OS. This defaults to global ${OS_USERNAME}. os_password The password to be used to login to the OS. This defaults to global ${OS_PASSWORD}. quiet Indicates whether status details should be written to the console. Defaults to either global value of ${QUIET} or to 1. """ quiet = int(gp.get_var_value(quiet, 0)) gp.gp_print(print_string) try: match_state = return_state_constant(match_state) except TypeError: pass req_states = match_state.keys() # Initialize state. state = get_state(openbmc_host=openbmc_host, openbmc_username=openbmc_username, openbmc_password=openbmc_password, os_host=os_host, os_username=os_username, os_password=os_password, req_states=req_states, quiet=quiet) if not quiet: gp.print_var(state) if exit_wait_early_message != "": # The exit_wait_early_message has been set by a signal handler so we # will exit "successfully". It is incumbent upon the calling function # (e.g. wait_state) to check/clear this variable and to fail # appropriately. return state match = compare_states(state, match_state) if invert and match: fail_msg = "The current state of the machine matches the match" +\ " state:\n" + gp.sprint_varx("state", state) BuiltIn().fail("\n" + gp.sprint_error(fail_msg)) elif not invert and not match: fail_msg = "The current state of the machine does NOT match the" +\ " match state:\n" +\ gp.sprint_varx("state", state) BuiltIn().fail("\n" + gp.sprint_error(fail_msg)) return state def wait_state(match_state=(), wait_time="1 min", interval="1 second", invert=0, openbmc_host="", openbmc_username="", openbmc_password="", os_host="", os_username="", os_password="", quiet=None): r""" Wait for the Open BMC machine's composite state to match the specified state. On success, this keyword returns the machine's composite state as a dictionary. Description of arguments: match_state A dictionary whose key/value pairs are "state field"/ "state value". See check_state (above) for details. This value may also be any string accepted by return_state_constant (e.g. "standby_match_state"). In such a case this function will call return_state_constant to convert it to a proper dictionary as described above. wait_time The total amount of time to wait for the desired state. This value may be expressed in Robot Framework's time format (e.g. 1 minute, 2 min 3 s, 4.5). interval The amount of time between state checks. This value may be expressed in Robot Framework's time format (e.g. 1 minute, 2 min 3 s, 4.5). invert If this flag is set, this function will for the state of the machine to cease to match the match state. openbmc_host The DNS name or IP address of the BMC. This defaults to global ${OPENBMC_HOST}. openbmc_username The username to be used to login to the BMC. This defaults to global ${OPENBMC_USERNAME}. openbmc_password The password to be used to login to the BMC. This defaults to global ${OPENBMC_PASSWORD}. os_host The DNS name or IP address of the operating system. This defaults to global ${OS_HOST}. os_username The username to be used to login to the OS. This defaults to global ${OS_USERNAME}. os_password The password to be used to login to the OS. This defaults to global ${OS_PASSWORD}. quiet Indicates whether status details should be written to the console. Defaults to either global value of ${QUIET} or to 1. """ quiet = int(gp.get_var_value(quiet, 0)) try: match_state = return_state_constant(match_state) except TypeError: pass if not quiet: if invert: alt_text = "cease to " else: alt_text = "" gp.print_timen("Checking every " + str(interval) + " for up to " + str(wait_time) + " for the state of the machine to " + alt_text + "match the state shown below.") gp.print_var(match_state) if quiet: print_string = "" else: print_string = "#" debug = int(BuiltIn().get_variable_value("${debug}", "0")) if debug: # In debug we print state so no need to print the "#". print_string = "" check_state_quiet = 1 - debug cmd_buf = ["Check State", match_state, "invert=${" + str(invert) + "}", "print_string=" + print_string, "openbmc_host=" + openbmc_host, "openbmc_username=" + openbmc_username, "openbmc_password=" + openbmc_password, "os_host=" + os_host, "os_username=" + os_username, "os_password=" + os_password, "quiet=${" + str(check_state_quiet) + "}"] gp.dprint_issuing(cmd_buf) try: state = BuiltIn().wait_until_keyword_succeeds(wait_time, interval, *cmd_buf) except AssertionError as my_assertion_error: gp.printn() message = my_assertion_error.args[0] BuiltIn().fail(message) if exit_wait_early_message: # The global exit_wait_early_message was set by a signal handler # indicating that we should fail. message = exit_wait_early_message # Clear the exit_wait_early_message variable for future use. set_exit_wait_early_message("") BuiltIn().fail(gp.sprint_error(message)) if not quiet: gp.printn() if invert: gp.print_timen("The states no longer match:") else: gp.print_timen("The states match:") gp.print_var(state) return state def wait_for_comm_cycle(start_boot_seconds, quiet=None): r""" Wait for communications to the BMC to stop working and then resume working. This function is useful when you have initiated some kind of reboot. Description of arguments: start_boot_seconds The time that the boot test started. The format is the epoch time in seconds, i.e. the number of seconds since 1970-01-01 00:00:00 UTC. This value should be obtained from the BMC so that it is not dependent on any kind of synchronization between this machine and the target BMC This will allow this program to work correctly even in a simulated environment. This value should be obtained by the caller prior to initiating a reboot. It can be obtained as follows: state = st.get_state(req_states=['epoch_seconds']) """ quiet = int(gp.get_var_value(quiet, 0)) # Validate parms. error_message = gv.svalid_integer(start_boot_seconds, var_name="start_boot_seconds") if error_message != "": BuiltIn().fail(gp.sprint_error(error_message)) match_state = anchor_state(DotDict([('packet_loss', '100')])) # Wait for 100% packet loss trying to ping machine. wait_state(match_state, wait_time="8 mins", interval="0 seconds") match_state['packet_loss'] = '^0$' # Wait for 0% packet loss trying to ping machine. wait_state(match_state, wait_time="8 mins", interval="0 seconds") # Get the uptime and epoch seconds for comparisons. We want to be sure # that the uptime is less than the elapsed boot time. Further proof that # a reboot has indeed occurred (vs random network instability giving a # false positive. We also use wait_state because the BMC may take a short # while to be ready to process SSH requests. match_state = DotDict([('uptime', '^[0-9\\.]+$'), ('epoch_seconds', '^[0-9]+$')]) state = wait_state(match_state, wait_time="2 mins", interval="1 second") elapsed_boot_time = int(state['epoch_seconds']) - start_boot_seconds gp.qprint_var(elapsed_boot_time) if state['uptime'] == "": error_message = "Unable to obtain uptime from the BMC. BMC is not" +\ " communicating." BuiltIn().fail(gp.sprint_error(error_message)) if int(float(state['uptime'])) < elapsed_boot_time: uptime = state['uptime'] gp.qprint_var(uptime) gp.qprint_timen("The uptime is less than the elapsed boot time," + " as expected.") else: error_message = "The uptime is greater than the elapsed boot time," +\ " which is unexpected:\n" +\ gp.sprint_var(start_boot_seconds) +\ gp.sprint_var(state) BuiltIn().fail(gp.sprint_error(error_message)) gp.qprint_timen("Verifying that REST API interface is working.") match_state = DotDict([('rest', '^1$')]) state = wait_state(match_state, wait_time="5 mins", interval="2 seconds")