Python Network.post_with_digest方法代碼示例

# 需要導入模塊: from app.util.network import Network [as 別名]
# 或者: from app.util.network.Network import post_with_digest [as 別名]
class BuildRunner(object):
    """
    BuildRunner is a procedure-oriented class intended to be used in the context of a script. This class provides
    functionality to synchronously execute a build on the ClusterRunner, wait for it to complete, and collect the
    build results.

    Example usage pattern:
    >>> runner = BuildRunner('http://mymaster.net:123', {'type':'git', 'url':'https://github.com/box/StatusWolf.git'})
    >>> runner.run()
    """

    API_VERSION = 'v1'

    def __init__(self, master_url, request_params, secret):
        """
        :param master_url: The url of the master which the build will be executed on
        :type master_url: str
        :param request_params: A dict of request params that will be json-encoded and sent in the build request
        :type request_params: dict
        :type secret: str
        """
        self._master_url = self._ensure_url_has_scheme(master_url)
        self._request_params = request_params
        self._secret = secret
        self._build_id = None
        self._network = Network()
        self._logger = get_logger(__name__)
        self._last_build_status_details = None
        self._master_api = UrlBuilder(master_url, self.API_VERSION)
        self._cluster_master_api_client = ClusterMasterAPIClient(master_url)

    def run(self):
        """
        Send the build request to the master, wait for the build to finish, then download the build artifacts.

        :return: Whether or not we were successful in running the build. (Note this does *not* indicate the success or
            faulure of the build itself; that is determined by the contents of the build artifacts which should be
            parsed elsewhere.)
        :rtype: bool
        """
        try:
            self._start_build()
            result = self._block_until_finished()
            self._download_and_extract_results()
            return result

        except _BuildRunnerError as ex:
            self._logger.error(str(ex))
            self._logger.warning('Script aborted due to error!')
            self._cancel_build()
            return False

    def _cancel_build(self):
        """
        Request the master cancels the build.
        """
        if self._build_id is not None:
            self._logger.warning('Cancelling build {}'.format(self._build_id))
            self._cluster_master_api_client.cancel_build(self._build_id)

    def _start_build(self):
        """
        Send the build request to the master for execution.
        """
        build_url = self._master_api.url('build')
        # todo: catch connection error
        response = self._network.post_with_digest(build_url, self._request_params, self._secret, error_on_failure=True)
        response_data = response.json()

        if 'error' in response_data:
            error_message = response_data['error']
            raise _BuildRunnerError('Error starting build: ' + error_message)

        self._build_id = response_data['build_id']

        UnhandledExceptionHandler.singleton().add_teardown_callback(self._cancel_build)
        self._logger.info('Build is running. (Build id: {})', self._build_id)

    def _block_until_finished(self, timeout=None):
        """
        Poll the build status endpoint until the build is finished or until the timeout is reached.

        :param timeout: The maximum number of seconds to wait until giving up, or None for no timeout
        :type timeout: int|None
        """
        timeout_time = time.time() + timeout if timeout else sys.maxsize
        build_status_url = self._master_api.url('build', self._build_id)
        self._logger.debug('Polling build status url: {}', build_status_url)

        while time.time() <= timeout_time:
            response = self._network.get(build_status_url)
            response_data = response.json()

            if 'build' not in response_data or 'status' not in response_data['build']:
                raise _BuildRunnerError('Status response does not contain a "build" object with a "status" value.'
                                        'URL: {}, Content:{}'.format(build_status_url, response_data))

            build_data = response_data['build']
            if build_data['status'] == BuildStatus.FINISHED:
                self._logger.info('Build is finished. (Build id: {})', self._build_id)
#.........這裏部分代碼省略.........

# 需要導入模塊: from app.util.network import Network [as 別名]
# 或者: from app.util.network.Network import post_with_digest [as 別名]
class Slave(object):

    _slave_id_counter = Counter()

    def __init__(self, slave_url, num_executors):
        """
        :type slave_url: str
        :type num_executors: int
        """
        self.url = slave_url
        self.num_executors = num_executors
        self.id = self._slave_id_counter.increment()
        self._num_executors_in_use = Counter()
        self._network = Network(min_connection_poolsize=num_executors)
        self.current_build_id = None
        self.is_alive = True
        self._slave_api = UrlBuilder(slave_url, app.master.cluster_master.ClusterMaster.API_VERSION)

    def api_representation(self):
        return {
            'url': self.url,
            'id': self.id,
            'num_executors': self.num_executors,
            'num_executors_in_use': self.num_executors_in_use(),
            'current_build_id': self.current_build(),
        }

    def mark_as_idle(self):
        """
        Do bookkeeping when this slave becomes idle.  Error if the slave cannot be idle.
        """
        if self._num_executors_in_use.value() != 0:
            raise Exception('Trying to mark slave idle while {} executors still in use.',
                            self._num_executors_in_use.value())

        self.current_build_id = None

    def setup(self, build_id, project_type_params):
        """
        Execute a setup command on the slave for the specified build. The command is executed asynchronously from the
        perspective of this method, but any subjobs will block until the slave finishes executing the setup command.

        :param build_id: The build id that this setup command is for.
        :type build_id: int

        :param project_type_params: The parameters that define the project type this build will execute in
        :typeproject_type_paramss: dict
        """
        setup_url = self._slave_api.url('build', build_id, 'setup')
        post_data = {
            'project_type_params': project_type_params,
        }
        self._network.post_with_digest(setup_url, post_data, Secret.get())

    def teardown(self):
        """
        Tell the slave to run the build teardown
        """
        teardown_url = self._slave_api.url('build', self.current_build_id, 'teardown')
        self._network.post(teardown_url)

    def start_subjob(self, subjob):
        """
        :type subjob: Subjob
        """
        if not self.is_alive:
            raise RuntimeError('Tried to start a subjob on a dead slave! ({}, id: {})'.format(self.url, self.id))

        SafeThread(target=self._async_start_subjob, args=(subjob,)).start()
        self.current_build_id = subjob.build_id()

    def _async_start_subjob(self, subjob):
        """
        :type subjob: Subjob
        """
        execution_url = self._slave_api.url('build', subjob.build_id(), 'subjob', subjob.subjob_id())
        post_data = {
            'subjob_artifact_dir': subjob.artifact_dir(),
            'atomic_commands': subjob.atomic_commands(),
        }
        response = self._network.post_with_digest(execution_url, post_data, Secret.get(), error_on_failure=True)

        subjob_executor_id = response.json().get('executor_id')
        analytics.record_event(analytics.MASTER_TRIGGERED_SUBJOB, executor_id=subjob_executor_id,
                               build_id=subjob.build_id(), subjob_id=subjob.subjob_id(), slave_url=self.url)

    def num_executors_in_use(self):
        return self._num_executors_in_use.value()

    def claim_executor(self):
        new_count = self._num_executors_in_use.increment()
        if new_count > self.num_executors:
            raise Exception('Cannot claim executor on slave {}. No executors left.'.format(self.url))
        return new_count

    def free_executor(self):
        new_count = self._num_executors_in_use.decrement()
        if new_count < 0:
            raise Exception('Cannot free executor on slave {}. All are free.'.format(self.url))
        return new_count
#.........這裏部分代碼省略.........

# 需要導入模塊: from app.util.network import Network [as 別名]
# 或者: from app.util.network.Network import post_with_digest [as 別名]
class Slave(object):

    API_VERSION = 'v1'
    _slave_id_counter = Counter()

    def __init__(self, slave_url, num_executors):
        """
        :type slave_url: str
        :type num_executors: int
        """
        self.url = slave_url
        self.num_executors = num_executors
        self.id = self._slave_id_counter.increment()
        self._num_executors_in_use = Counter()
        self._network = Network(min_connection_poolsize=num_executors)
        self.current_build_id = None
        self._is_alive = True
        self._slave_api = UrlBuilder(slave_url, self.API_VERSION)
        self._logger = log.get_logger(__name__)

    def api_representation(self):
        return {
            'url': self.url,
            'id': self.id,
            'num_executors': self.num_executors,
            'num_executors_in_use': self.num_executors_in_use(),
            'current_build_id': self.current_build_id,
            'is_alive': self.is_alive(),
        }

    def mark_as_idle(self):
        """
        Do bookkeeping when this slave becomes idle.  Error if the slave cannot be idle.
        """
        if self._num_executors_in_use.value() != 0:
            raise Exception('Trying to mark slave idle while {} executors still in use.',
                            self._num_executors_in_use.value())

        self.current_build_id = None

    def setup(self, build):
        """
        Execute a setup command on the slave for the specified build. The setup process executes asynchronously on the
        slave and the slave will alert the master when setup is complete and it is ready to start working on subjobs.

        :param build: The build to set up this slave to work on
        :type build: Build
        """
        slave_project_type_params = build.build_request.build_parameters().copy()
        slave_project_type_params.update(build.project_type.slave_param_overrides())

        setup_url = self._slave_api.url('build', build.build_id(), 'setup')
        post_data = {
            'project_type_params': slave_project_type_params,
            'build_executor_start_index': build.num_executors_allocated,
        }
        self._network.post_with_digest(setup_url, post_data, Secret.get())
        self.current_build_id = build.build_id()

    def teardown(self):
        """
        Tell the slave to run the build teardown
        """
        if self.is_alive():
            teardown_url = self._slave_api.url('build', self.current_build_id, 'teardown')
            self._network.post(teardown_url)
        else:
            self._logger.notice('Teardown request to slave {} was not sent since slave is disconnected.', self.url)

    def start_subjob(self, subjob):
        """
        :type subjob: Subjob
        """
        if not self.is_alive():
            raise RuntimeError('Tried to start a subjob on a dead slave! ({}, id: {})'.format(self.url, self.id))

        SafeThread(target=self._async_start_subjob, args=(subjob,)).start()

    def _async_start_subjob(self, subjob):
        """
        :type subjob: Subjob
        """
        execution_url = self._slave_api.url('build', subjob.build_id(), 'subjob', subjob.subjob_id())
        post_data = {
            'subjob_artifact_dir': subjob.artifact_dir(),
            'atomic_commands': subjob.atomic_commands(),
        }
        response = self._network.post_with_digest(execution_url, post_data, Secret.get(), error_on_failure=True)

        subjob_executor_id = response.json().get('executor_id')
        analytics.record_event(analytics.MASTER_TRIGGERED_SUBJOB, executor_id=subjob_executor_id,
                               build_id=subjob.build_id(), subjob_id=subjob.subjob_id(), slave_id=self.id)

    def num_executors_in_use(self):
        return self._num_executors_in_use.value()

    def claim_executor(self):
        new_count = self._num_executors_in_use.increment()
        if new_count > self.num_executors:
            raise Exception('Cannot claim executor on slave {}. No executors left.'.format(self.url))
#.........這裏部分代碼省略.........

# 需要導入模塊: from app.util.network import Network [as 別名]
# 或者: from app.util.network.Network import post_with_digest [as 別名]
class Slave:
    API_VERSION = 'v1'
    _slave_id_counter = Counter()

    def __init__(self, slave_url, num_executors, slave_session_id=None):
        """
        :type slave_url: str
        :type num_executors: int
        :type slave_session_id: str
        """
        self.url = slave_url
        self.num_executors = num_executors
        self.id = self._slave_id_counter.increment()
        self._num_executors_in_use = Counter()
        self._network = Network(min_connection_poolsize=num_executors)
        self.current_build_id = None
        self._last_heartbeat_time = datetime.now()
        self._is_alive = True
        self._is_in_shutdown_mode = False
        self._slave_api = UrlBuilder(slave_url, self.API_VERSION)
        self._session_id = slave_session_id
        self._logger = log.get_logger(__name__)

    def __str__(self):
        return '<slave #{} - {}>'.format(self.id, self.url)

    def api_representation(self):
        return {
            'url': self.url,
            'id': self.id,
            'session_id': self._session_id,
            'num_executors': self.num_executors,
            'num_executors_in_use': self.num_executors_in_use(),
            'current_build_id': self.current_build_id,
            'is_alive': self.is_alive(),
            'is_in_shutdown_mode': self._is_in_shutdown_mode,
        }

    def mark_as_idle(self):
        """
        Do bookkeeping when this slave becomes idle.  Error if the slave cannot be idle.
        If the slave is in shutdown mode, clear the build_id, kill the slave, and raise an error.
        """
        if self._num_executors_in_use.value() != 0:
            raise Exception('Trying to mark slave idle while {} executors still in use.',
                            self._num_executors_in_use.value())

        self.current_build_id = None

        if self._is_in_shutdown_mode:
            self.kill()
            self._remove_slave_from_registry()
            raise SlaveMarkedForShutdownError

    def setup(self, build: Build, executor_start_index: int) -> bool:
        """
        Execute a setup command on the slave for the specified build. The setup process executes asynchronously on the
        slave and the slave will alert the master when setup is complete and it is ready to start working on subjobs.

        :param build: The build to set up this slave to work on
        :param executor_start_index: The index the slave should number its executors from for this build
        :return: Whether or not the call to start setup on the slave was successful
        """
        slave_project_type_params = build.build_request.build_parameters().copy()
        slave_project_type_params.update(build.project_type.slave_param_overrides())

        setup_url = self._slave_api.url('build', build.build_id(), 'setup')
        post_data = {
            'project_type_params': slave_project_type_params,
            'build_executor_start_index': executor_start_index,
        }

        self.current_build_id = build.build_id()
        try:
            self._network.post_with_digest(setup_url, post_data, Secret.get())
        except (requests.ConnectionError, requests.Timeout) as ex:
            self._logger.warning('Setup call to {} failed with {}: {}.', self, ex.__class__.__name__, str(ex))
            self.mark_dead()
            return False
        return True

    def teardown(self):
        """
        Tell the slave to run the build teardown
        """
        if not self.is_alive():
            self._logger.notice('Teardown request to slave {} was not sent since slave is disconnected.', self.url)
            return

        teardown_url = self._slave_api.url('build', self.current_build_id, 'teardown')
        try:
            self._network.post(teardown_url)
        except (requests.ConnectionError, requests.Timeout):
            self._logger.warning('Teardown request to slave failed because slave is unresponsive.')
            self.mark_dead()

    def start_subjob(self, subjob: Subjob):
        """
        Send a subjob of a build to this slave. The slave must have already run setup for the corresponding build.
        :param subjob: The subjob to send to this slave
#.........這裏部分代碼省略.........

# 需要導入模塊: from app.util.network import Network [as 別名]
# 或者: from app.util.network.Network import post_with_digest [as 別名]
class ClusterSlave(ClusterService):

    API_VERSION = 'v1'

    def __init__(self, port, host, num_executors=10):
        """
        :param port: The port number the slave service is running on
        :type port: int
        :param host: The hostname at which the slave is reachable
        :type host: str
        :param num_executors: The number of executors this slave should operate with -- this determines how many
            concurrent subjobs the slave can execute.
        :type num_executors: int
        """
        self.port = port
        self.host = host
        self.is_alive = True
        self._slave_id = None
        self._num_executors = num_executors
        self._logger = log.get_logger(__name__)

        self._idle_executors = Queue(maxsize=num_executors)
        self.executors_by_id = {}
        for executor_id in range(num_executors):
            executor = SubjobExecutor(executor_id)
            self._idle_executors.put(executor)
            self.executors_by_id[executor_id] = executor

        self._master_url = None
        self._network = Network(min_connection_poolsize=num_executors)
        self._master_api = None  # wait until we connect to a master first

        self._project_type = None  # this will be instantiated during build setup
        self._current_build_id = None
        self._build_teardown_coin = None
        self._base_executor_index = None

        # Configure heartbeat
        self._heartbeat_failure_count = 0
        self._heartbeat_failure_threshold = Configuration['heartbeat_failure_threshold']
        self._heartbeat_interval = Configuration['heartbeat_interval']
        self._hb_scheduler = sched.scheduler()

    def start_heartbeat_thread(self):
        self._logger.info('Heartbeat will run every {} seconds'.format(self._heartbeat_interval))
        SafeThread(target=self._start_heartbeat, name='HeartbeatThread', daemon=True).start()

    def _start_heartbeat(self):
        self._hb_scheduler.enter(0, 0, self._run_heartbeat)
        self._hb_scheduler.run()

    def _run_heartbeat(self):
        try:
            response = self._send_heartbeat_to_master()

            # A non HTTP 200 response indicates that the master is up, but does not recognize the slave.
            if not response.ok:
                self._logger.error('Received HTTP {} from master.'.format(response.status_code))
                self._logger.error('The slave process is shutting down.')
                self.kill()
            # is_alive = False indicates slave is marked offline in master
            elif not response.json().get('is_alive'):
                self._logger.error('The slave is marked dead by master.')
                self._logger.error('The slave process is shutting down.')
                self.kill()
            else:
                self._heartbeat_failure_count = 0
        except (requests.ConnectionError, requests.Timeout):
            self._heartbeat_failure_count += 1
            self._logger.warning('Master has not responded to last {} heartbeats.'.format(
                self._heartbeat_failure_count))
            if self._heartbeat_failure_count >= self._heartbeat_failure_threshold:
                self._logger.error('Heartbeat failure threshold of {} reached.'.format(
                    self._heartbeat_failure_threshold))
                self._logger.error('The slave process is shutting down.')
                self.kill()

        self._hb_scheduler.enter(self._heartbeat_interval, 0, self._run_heartbeat)

    def _send_heartbeat_to_master(self):
        heartbeat_url = self._master_api.url('slave', self._slave_id, 'heartbeat')
        return self._network.post_with_digest(heartbeat_url, request_params={'slave': {'heartbeat': True}},
                                              secret=Secret.get())

    def api_representation(self):
        """
        Gets a dict representing this resource which can be returned in an API response.
        :rtype: dict [str, mixed]
        """
        executors_representation = [executor.api_representation() for executor in self.executors_by_id.values()]
        return {
            'is_alive': self.is_alive,
            'master_url': self._master_url,
            'current_build_id': self._current_build_id,
            'slave_id': self._slave_id,
            'executors': executors_representation,
            'session_id': SessionId.get(),
        }

    def get_status(self):
#.........這裏部分代碼省略.........