def __init__(self, username, password, tenant_name, auth_url, num_threads=5,
log_level=LOG_INFO):
"""
@param username: String; the Openstack user name
@param password: String; the Openstack password for username
@param tenant_name: String, the Openstack tenant's name
@param auth_url: String; the Openstack authentication URL. This will
authenticate the username/password to allow them to perform the
resource provisioning tasks.
@keyword num_threads: Optional. Integer, default 5. The number of threads
to spawn to handle parallel provisioning tasks
@keyword log_level: Optional; default LOG_INFO. One of the logging values
from actuator: LOG_CRIT, LOG_ERROR, LOG_WARN, LOG_INFO, LOG_DEBUG.
"""
self.os_creds = OpenstackCredentials(username, password, tenant_name, auth_url)
self.agent = None
self.num_threads = num_threads
root_logger.setLevel(log_level)
self.logger = root_logger.getChild(self.LOG_SUFFIX)
def __init__(
self,
exec_model_instance=None,
config_model_instance=None,
namespace_model_instance=None,
infra_model_instance=None,
num_threads=5,
do_log=False,
no_delay=False,
log_level=LOG_INFO,
):
"""
Make a new ExecutionAgent
@keyword exec_model_instance: Reserved for latter use
@keyword config_model_instance: an instance of a derived class of
ConfigModel
@keyword namespace_model_instance: an instance of a derived class of
NamespaceModel
@keyword infra_model_instance: UNUSED; an instance of a derived class of
InfraModel
@keyword num_threads: Integer, default 5. The number of worker threads
to spin up to perform tasks.
@keyword do_log: boolean, default False. If True, creates a log file
that contains more detailed logs of the activities carried out.
Independent of log_level (see below).
@keyword no_delay: booleand, default False. The default causes a short
pause of up to 2.5 seconds to be taken before a task is started.
This keeps a single host from being bombarded with too many ssh
requests at the same time in the case where a number of different
tasks can all start in parallel on the same Role's host.
@keyword log_level: Any of the symbolic log levels in the actuator root
package, LOG_CRIT, LOG_DEBUG, LOG_ERROR, LOG_INFO, or LOG_WARN
"""
# @TODO: need to add a test for the type of the exec_model_instance
self.exec_mi = exec_model_instance
if config_model_instance is not None and not isinstance(config_model_instance, ConfigModel):
raise ExecutionException("config_model_instance argument isn't an instance of ConfigModel")
self.config_mi = config_model_instance
if namespace_model_instance is not None and not isinstance(namespace_model_instance, NamespaceModel):
raise ExecutionException("namespace_model_instance isn't an instance of NamespaceModel")
self.namespace_mi = namespace_model_instance
if self.config_mi is not None:
self.config_mi.set_namespace(self.namespace_mi)
if infra_model_instance is not None and not isinstance(infra_model_instance, InfraModel):
raise ExecutionException("infra_model_instance isn't an instance of InfraModel")
self.infra_mi = infra_model_instance
root_logger.setLevel(log_level)
self.task_queue = Queue.Queue()
self.node_lock = threading.Lock()
self.stop = False
self.aborted_tasks = []
self.num_tasks_to_perform = None
self.config_record = None
self.num_threads = num_threads
self.do_log = do_log
self.no_delay = no_delay