def _enable_console(mode):
"""Request ironicclient to enable/disable node console."""
try:
self.ironicclient.call('node.set_console_mode', node_uuid,
mode)
except (
ironic_exc.InternalServerError, # Validations
ironic_exc.BadRequest) as e: # Maintenance
LOG.error(
'Failed to set console mode to "%(mode)s" '
'for node %(node)s: %(reason)s', {
'mode': mode,
'node': node_uuid,
'reason': e
})
raise exception.ConsoleNotAvailable()
# Waiting for the console state to change (disabled/enabled)
try:
timer = loopingcall.BackOffLoopingCall(_wait_state, state=mode)
return timer.start(starting_interval=1, timeout=10,
jitter=0.5).wait()
except loopingcall.LoopingCallTimeOut:
LOG.error(
'Timeout while waiting for console mode to be '
'set to "%(mode)s" on node %(node)s', {
'mode': mode,
'node': node_uuid
})
raise exception.ConsoleNotAvailable()
def _get_console():
"""Request ironicclient to acquire node console."""
try:
return self.ironicclient.call('node.get_console', node_uuid)
except (ironic_exc.InternalServerError,
ironic_exc.BadRequest) as e:
LOG.error(
'Failed to acquire console information for '
'node %(server)s: %(reason)s', {
'server': node_uuid,
'reason': e
})
raise exception.ConsoleNotAvailable()
def get_serial_console_by_server(self, context, server):
node = self._validate_server_and_node(server)
node_uuid = node.uuid
def _get_console():
"""Request ironicclient to acquire node console."""
try:
return self.ironicclient.call('node.get_console', node_uuid)
except (ironic_exc.InternalServerError,
ironic_exc.BadRequest) as e:
LOG.error(
'Failed to acquire console information for '
'node %(server)s: %(reason)s', {
'server': node_uuid,
'reason': e
})
raise exception.ConsoleNotAvailable()
def _wait_state(state):
"""Wait for the expected console mode to be set on node."""
console = _get_console()
if console['console_enabled'] == state:
raise loopingcall.LoopingCallDone(retvalue=console)
_log_ironic_polling('set console mode', node, server)
# Return False to start backing off
return False
def _enable_console(mode):
"""Request ironicclient to enable/disable node console."""
try:
self.ironicclient.call('node.set_console_mode', node_uuid,
mode)
except (
ironic_exc.InternalServerError, # Validations
ironic_exc.BadRequest) as e: # Maintenance
LOG.error(
'Failed to set console mode to "%(mode)s" '
'for node %(node)s: %(reason)s', {
'mode': mode,
'node': node_uuid,
'reason': e
})
raise exception.ConsoleNotAvailable()
# Waiting for the console state to change (disabled/enabled)
try:
timer = loopingcall.BackOffLoopingCall(_wait_state, state=mode)
return timer.start(starting_interval=1, timeout=10,
jitter=0.5).wait()
except loopingcall.LoopingCallTimeOut:
LOG.error(
'Timeout while waiting for console mode to be '
'set to "%(mode)s" on node %(node)s', {
'mode': mode,
'node': node_uuid
})
raise exception.ConsoleNotAvailable()
# Acquire the console
console = _get_console()
# NOTE: Resetting console is a workaround to force acquiring
# console when it has already been acquired by another user/operator.
# IPMI serial console does not support multi session, so
# resetting console will deactivate any active one without
# warning the operator.
if console['console_enabled']:
try:
# Disable console
_enable_console(False)
# Then re-enable it
console = _enable_console(True)
except exception.ConsoleNotAvailable:
# NOTE: We try to do recover on failure.
# But if recover fails, the console may remain in
# "disabled" state and cause any new connection
# will be refused.
console = _enable_console(True)
if console['console_enabled']:
if console['console_info']['type'] != 'shellinabox':
raise exception.ConsoleTypeUnavailable(
console_type=console['console_info']['type'])
return {'node': node, 'console_info': console['console_info']}
else:
LOG.debug('Console is disabled for node %s', node_uuid)
raise exception.ConsoleNotAvailable()