class AgentV1(object): ''' contains the main logic for processing This object is compatible with API Version 1 ''' def __init__(self, conf): ''' conf: argparse dict ''' tool_dir = {} if 'pwd' in conf and conf['pwd']: tool_dir = {'tool_dir': PWD_TOOLING} # Create the Client Object self.client = CSClient(**conf) self.client.test_connection() # Get any optional tooling from the Config Server tooling_status, tarball = self.client.get_tooling() if tooling_status != 200: LOGGER.error('Get Tooling returned: %s' % tooling_status) raise AAErrorGetTooling('Get Tooling returned: %s' % tooling_status) self.tooling = Tooling(tarball, **tool_dir) def run(self): ''' Main agent loop, called by main() in /usr/bin/audrey ''' # 0 means don't run again # -1 is non zero so initial runs will happen config_status = -1 provides_status = -1 max_retry = MAX_RETRY loop_count = 60 services = [] # Process the Requires and Provides parameters until the HTTP status # from the get_configs and the get_params both return 200 while config_status or provides_status: LOGGER.debug('Config Parameter status: ' + str(config_status)) LOGGER.debug('Return Parameter status: ' + str(provides_status)) # Get the Required Configs from the Config Server if config_status: config_status, configs = self.client.get_configs() # Configure the system with the provided Required Configs if config_status == 200: services = Service.parse_require_config(configs, self.tooling) self.tooling.invoke_tooling(services) # don't do any more config status work # now that the tooling has run config_status = 0 else: LOGGER.info( 'No configuration parameters provided. status: ' + \ str(config_status)) # Get the requested provides from the Config Server if provides_status: get_status = self.client.get_provides()[0] # Gather the values from the system for the requested provides if get_status == 200: params_values = Provides().generate_cs_str() else: params_values = '|&|' # Put the requested provides with values to the Config Server provides_status = self.client.put_provides(params_values)[0] if provides_status == 200: # don't operate on params anymore, all have been provided. provides_status = 0 # Retry a number of times if 404 HTTP Not Found is returned. if config_status == 404 or provides_status == 404: LOGGER.error('404 from Config Server.') LOGGER.error('Required Config status: %s' % config_status) LOGGER.info('Return Parameter status: %s' % provides_status) max_retry -= 1 if max_retry < 0: raise AAError('Too many 404 Config Server responses.') if loop_count: loop_count-=1 sleep(SLEEP_SECS) else: break
class TestAudreyCSClient(unittest.TestCase): ''' Class for exercising the gets and put to and from the CS ''' def setUp(self): ''' If the cloud info file is not present assume running in a UNITTEST environment. This will allow for exercising some of the code without having to be running in a cloud VM. ''' # Create the client Object self.cs_client = CSClient(**DUMMY_CS_CONFIG) self.cs_client.http = HttpUnitTest() def test_success_get_configs(self): ''' Success case: - Exercise get_configs() ''' self.cs_client.get_configs() def test_success_get_tooling(self): ''' Success case: - Exercise get_tooling() ''' self.cs_client.get_tooling() def test_success_get_provides(self): ''' Success case: - Exercise get_provides() ''' self.cs_client.get_provides() def test_success_get_confs_n_provides(self): ''' Success case: - Exercise get_configs() and get_provides() ''' self.cs_client.get_configs() self.cs_client.get_provides() def test_success_put_provides(self): ''' Success case: - Exercise put_provides_values() ''' self.cs_client.put_provides('') def test_error_http_status(self): ''' Success case: - Get a 401 ''' self.assertRaises(AAError, self.cs_client._validate_http_status, HttpUnitTest.HttpUnitTestResponse(401)) def test_catch_get_exception(self): ''' Success case: - get fails but audrey recovers ''' self.cs_client._get('http://hostname/raiseException') def test_catch_put_exception(self): ''' Success case: - put fails but audrey recovers ''' self.cs_client._put('http://hostname/raiseException') def test_failed_version(self): audrey.csclient.VERSION_URL = '/badversion' self.assertRaises(AAErrorApiNegotiation, self.cs_client.test_connection)
class AgentV1(object): ''' contains the main logic for processing This object is compatible with API Version 1 ''' def __init__(self, conf): ''' conf: argparse dict ''' tool_dir = {} if 'pwd' in conf and conf['pwd']: tool_dir = {'tool_dir': PWD_TOOLING} # Create the Client Object self.client = CSClient(**conf) self.client.test_connection() # Get any optional tooling from the Config Server tooling_status, tarball = self.client.get_tooling() if tooling_status != 200: LOGGER.error('Get Tooling returned: %s' % tooling_status) raise AAErrorGetTooling('Get Tooling returned: %s' % tooling_status) self.tooling = Tooling(tarball, **tool_dir) def run(self): ''' Main agent loop, called by main() in /usr/bin/audrey ''' # 0 means don't run again # -1 is non zero so initial runs will happen config_status = -1 provides_status = -1 max_retry = MAX_RETRY loop_count = 60 services = [] # Process the Requires and Provides parameters until the HTTP status # from the get_configs and the get_params both return 200 while config_status or provides_status: LOGGER.debug('Config Parameter status: ' + str(config_status)) LOGGER.debug('Return Parameter status: ' + str(provides_status)) # Get the Required Configs from the Config Server if config_status: config_status, configs = self.client.get_configs() # Configure the system with the provided Required Configs if config_status == 200: services = Service.parse_require_config( configs, self.tooling) self.tooling.invoke_tooling(services) # don't do any more config status work # now that the tooling has run config_status = 0 else: LOGGER.info( 'No configuration parameters provided. status: ' + \ str(config_status)) # Get the requested provides from the Config Server if provides_status: get_status = self.client.get_provides()[0] # Gather the values from the system for the requested provides if get_status == 200: params_values = Provides().generate_cs_str() else: params_values = '|&|' # Put the requested provides with values to the Config Server provides_status = self.client.put_provides(params_values)[0] if provides_status == 200: # don't operate on params anymore, all have been provided. provides_status = 0 # Retry a number of times if 404 HTTP Not Found is returned. if config_status == 404 or provides_status == 404: LOGGER.error('404 from Config Server.') LOGGER.error('Required Config status: %s' % config_status) LOGGER.info('Return Parameter status: %s' % provides_status) max_retry -= 1 if max_retry < 0: raise AAError('Too many 404 Config Server responses.') if loop_count: loop_count -= 1 sleep(SLEEP_SECS) else: break