ironic baremetal node status

参考：

https://docs.openstack.org/ironic/latest/contributor/states.html

enroll-manageable

ironic/api/controllers/v1/node.py
class NodeStatesController(rest.RestController):
    def provision(self, node_ident, target, configdrive=None,
              clean_steps=None, rescue_password=None):
            ......
            elif target in PROVISION_ACTION_STATES:
    pecan.request.rpcapi.do_provisioning_action(
        pecan.request.context, rpc_node.uuid, target, topic)
  
ironic/conductor/manager.py
class ConductorManager(base_manager.BaseConductorManager):
        ......
    #RPC方法启动某些供应状态转换。通过状态机启动配置状态更改.
    def do_provisioning_action(self, context, node_id, action):
            ......
            #如果action等于manager且provision状态为enroll，则执行验证节点
            if (action == states.VERBS['manage'] and
        node.provision_state == states.ENROLL):
    task.process_event(
        'manage',
        callback=self._spawn_worker,
        call_args=(self._do_node_verify, task),
        err_handler=utils.provisioning_error_handler)
    return
  
    #执行电源凭证验证的内部方法
    def _do_node_verify(self, task):
            ......
            else:
    try:
        power_state = task.driver.power.get_power_state(task)
  
ironic/drivers/modules/ipmitool.py
class IPMIPower(base.PowerInterface):
        ##获取任务节点的当前电源状态
        def get_power_state(self, task):
            driver_info = _parse_driver_info(task.node)#获取ipmitool访问节点所需的参数
            return _power_status(driver_info)
  
        def _parse_driver_info(node):
            ......#返回IPMI参数，当节点有了关于driver和相关认证等信息后，就可以通过manage请求，将状态转变为manageable状态
            return {
                 'address': address,
                 'dest_port': dest_port,
                 'username': username,
                 'password': password,
                 'port': port,
                 'uuid': node.uuid,
                 'priv_level': priv_level,
                 'local_address': local_address,
                 'transit_channel': transit_channel,
                 'transit_address': transit_address,
                 'target_channel': target_channel,
                 'target_address': target_address,
                 'protocol_version': protocol_version,
                 'force_boot_device': force_boot_device,
            }

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manageable-adopt

ironic/conductor/manager.py
class ConductorManager(base_manager.BaseConductorManager):
        def do_provisioning_action(self, context, node_id, action):
                #如果action等于adopt且provision状态为MANAGEABLE，则执行验证节点
                if (action == states.VERBS['adopt'] and
                        node.provision_state in (states.MANAGEABLE,
                    states.ADOPTFAIL)):
                    task.process_event(
                        'adopt',
                        callback=self._spawn_worker,
                        call_args=(self._do_adoption, task),
                        err_handler=utils.provisioning_error_handler)
                    return
        #采用执行驱动程序引导验证，然后触发节点接管，这个方法的目标是为节点设置条件在没有执行的情况下，作为一个活动节点来管理部署操作
        这种转换允许这些节点直接从可管理节点移动到活动节点
        def _do_adoption(self, task):
                try:
                    iwdi = images.is_whole_disk_image(task.context,
                                  task.node.instance_info)
                    driver_internal_info = node.driver_internal_info
                    driver_internal_info['is_whole_disk_image'] = iwdi
                    node.driver_internal_info = driver_internal_info
                    task.driver.boot.validate(task)
                   self._do_takeover(task)
                    LOG.info("Successfully adopted node %(node)s",
                            {'node': node.uuid})
                    task.process_event('done')

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manageable-clean

ironic/conductor/manager.py
class ConductorManager(base_manager.BaseConductorManager):
        def do_provisioning_action(self, context, node_id, action):
                ......
                ##如果action等于provide且provision状态为MANAGEABLE，则执行节点清理操作
                if (action == states.VERBS['provide'] and
                         node.provision_state == states.MANAGEABLE):
                    task.process_event(
                        'provide',
                        callback=self._spawn_worker,
                        call_args=(self._do_node_clean, task),
                        err_handler=utils.provisioning_error_handler)
                    return
        #内部RPC方法来执行节点的清理
        def _do_node_clean(self, task, clean_steps=None):
                #判断是否自动清理还是自定义清理
                clean_type = 'manual' if manual_clean else 'automated'
                #如果是自动清理关闭则直接不清理变为AVAILABLE状态
                if not manual_clean and not CONF.conductor.automated_clean:
                 # Skip cleaning, move to AVAILABLE.
                    node.clean_step = None
                    node.save()
                    task.process_event('done')
                 
                try:
                    #否则需要有效的电源和网络值来执行清理
                    task.driver.power.validate(task)
                    task.driver.network.validate(task)
                try:
                    #允许部署驱动程序再次设置ramdisk执行带内清理
                    prepare_result = task.driver.deploy.prepare_cleaning(task)
                if prepare_result == states.CLEANWAIT:
                    target_state = states.MANAGEABLE if manual_clean else None
                    task.process_event('wait', target_state=target_state)
                    return
                try:
                    #
                    utils.set_node_cleaning_steps(task)
                except (exception.InvalidParameterValue,
                        exception.NodeCleaningFailure) as e:
                    msg = (_('Cannot clean node %(node)s. Error: %(msg)s')
                             % {'node': node.uuid, 'msg': e})
                    #判断states的状态返回对应的结果
                    return utils.cleaning_error_handler(task, msg)
                steps = node.driver_internal_info.get('clean_steps', [])
                step_index = 0 if steps else None
                self._do_next_clean_step(task, step_index)

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