def authenticate_credentials(self, key): # pylint:disable=arguments-differ
try:
auth_parts = base64.b64decode(key).decode('utf-8').split(
RedisEphemeralTokens.SEPARATOR)
except (TypeError, UnicodeDecodeError, binascii.Error):
msg = 'Invalid basic header. Credentials not correctly base64 encoded.'
raise exceptions.AuthenticationFailed(msg)
if len(auth_parts) != 2:
msg = 'Invalid token header. Token should contain token and uuid.'
raise exceptions.AuthenticationFailed(msg)
token = auth_parts[0]
token_uuid = auth_parts[1]
ephemeral_token = RedisEphemeralTokens(token_uuid)
if not ephemeral_token:
msg = 'Invalid token.'
raise exceptions.AuthenticationFailed(msg)
scope = ephemeral_token.scope
if not ephemeral_token.check_token(token=token):
ephemeral_token.clear()
msg = 'Invalid token header'
raise exceptions.AuthenticationFailed(msg)
return EphemeralUser(scope=scope), None
def run(cls):
results = {}
result = cls.redis_health(RedisEphemeralTokens.connection())
if not result.is_healthy:
results['REDIS_EPH_TOKENS'] = result
result = cls.redis_health(RedisSessions.connection())
if not result.is_healthy:
results['REDIS_SESSIONS'] = result
result = cls.redis_health(RedisTTL.connection())
if not result.is_healthy:
results['REDIS_TTL'] = result
result = cls.redis_health(RedisToStream.connection())
if not result.is_healthy:
results['REDIS_TO_STREAM'] = result
result = cls.redis_health(RedisJobContainers.connection())
if not result.is_healthy:
results['REDIS_CONTAINERS'] = result
if not results:
results = {'REDIS': Result()}
return results
def post(self, request, *args, **kwargs):
user = request.user
if user.scope is None:
return Response(status=status.HTTP_403_FORBIDDEN)
experiment = self.get_object()
if experiment.last_status not in [ExperimentLifeCycle.SCHEDULED,
ExperimentLifeCycle.STARTING,
ExperimentLifeCycle.RUNNING]:
return Response(status=status.HTTP_403_FORBIDDEN)
scope = RedisEphemeralTokens.get_scope(user=experiment.user.id,
model='experiment',
object_id=experiment.id)
if sorted(user.scope) != sorted(scope):
return Response(status=status.HTTP_403_FORBIDDEN)
token, _ = Token.objects.get_or_create(user=experiment.user)
return Response({'token': token.key}, status=status.HTTP_200_OK)
def start_experiment(experiment):
# Update experiment status to show that its started
experiment.set_status(ExperimentLifeCycle.SCHEDULED)
project = experiment.project
group = experiment.experiment_group
job_docker_image = None # This will force the spawners to use the default docker image
if experiment.specification.build:
try:
image_name, image_tag = get_image_info(
build_job=experiment.build_job)
except (ValueError, AttributeError):
_logger.error('Could not start the experiment.', exc_info=True)
experiment.set_status(ExperimentLifeCycle.FAILED,
message='Image info was not found.')
return
job_docker_image = '{}:{}'.format(image_name, image_tag)
_logger.info('Start experiment with built image `%s`',
job_docker_image)
else:
_logger.info('Start experiment with default image.')
spawner_class = get_spawner_class(experiment.specification.framework)
token_scope = RedisEphemeralTokens.get_scope(experiment.user.id,
'experiment', experiment.id)
error = {}
try:
# Use spawners to start the experiment
spawner = spawner_class(
project_name=project.unique_name,
experiment_name=experiment.unique_name,
experiment_group_name=group.unique_name if group else None,
project_uuid=project.uuid.hex,
experiment_group_uuid=group.uuid.hex if group else None,
experiment_uuid=experiment.uuid.hex,
persistence_config=experiment.persistence_config,
outputs_refs_experiments=experiment.outputs_refs_experiments,
outputs_refs_jobs=experiment.outputs_refs_jobs,
original_name=experiment.original_unique_name,
cloning_strategy=experiment.cloning_strategy,
spec=experiment.specification,
k8s_config=conf.get('K8S_CONFIG'),
namespace=conf.get('K8S_NAMESPACE'),
in_cluster=True,
job_docker_image=job_docker_image,
use_sidecar=True,
token_scope=token_scope)
response = spawner.start_experiment()
handle_experiment(experiment=experiment,
spawner=spawner,
response=response)
except ApiException as e:
_logger.error(
'Could not start the experiment, please check your polyaxon spec.',
exc_info=True)
error = {
'raised':
True,
'traceback':
traceback.format_exc(),
'message':
'Could not start the experiment, encountered a Kubernetes ApiException.'
}
except VolumeNotFoundError as e:
_logger.error(
'Could not start the experiment, please check your volume definitions.',
exc_info=True)
error = {
'raised':
True,
'traceback':
traceback.format_exc(),
'message':
'Could not start the experiment, '
'encountered a volume definition problem, %s.' % e
}
except Exception as e:
_logger.error(
'Could not start the experiment, please check your polyaxon spec',
exc_info=True)
error = {
'raised':
True,
'traceback':
traceback.format_exc(),
'message':
'Could not start the experiment encountered an {} exception.'.
format(e.__class__.__name__)
}
finally:
if error.get('raised'):
experiment.set_status(ExperimentLifeCycle.FAILED,
message=error.get('message'),
traceback=error.get('traceback'))
def _create_job(
self, # pylint:disable=arguments-differ
task_type,
command=None,
args=None,
env_vars=None,
resources=None,
node_selector=None,
affinity=None,
tolerations=None,
replicas=1,
restart_policy='Never'):
ephemeral_token = None
if self.token_scope:
ephemeral_token = RedisEphemeralTokens.generate_header_token(
scope=self.token_scope)
resource_name = self.resource_manager.get_kf_resource_name(
task_type=task_type)
labels = self.resource_manager.get_labels(task_type=task_type)
# Set and validate volumes
volumes, volume_mounts = get_pod_volumes(
persistence_outputs=self.persistence_config.outputs,
persistence_data=self.persistence_config.data)
refs_volumes, refs_volume_mounts = get_pod_refs_outputs_volumes(
outputs_refs=self.outputs_refs_jobs,
persistence_outputs=self.persistence_config.outputs)
volumes += refs_volumes
volume_mounts += refs_volume_mounts
refs_volumes, refs_volume_mounts = get_pod_refs_outputs_volumes(
outputs_refs=self.outputs_refs_experiments,
persistence_outputs=self.persistence_config.outputs)
volumes += refs_volumes
volume_mounts += refs_volume_mounts
shm_volumes, shm_volume_mounts = get_shm_volumes()
volumes += shm_volumes
volume_mounts += shm_volume_mounts
context_volumes, context_mounts = get_auth_context_volumes()
volumes += context_volumes
volume_mounts += context_mounts
# Validate secret and configmap refs
secret_refs = validate_secret_refs(self.spec.secret_refs)
configmap_refs = validate_configmap_refs(self.spec.configmap_refs)
pod_template_spec = self.resource_manager.get_pod_template_spec(
resource_name=resource_name,
volume_mounts=volume_mounts,
volumes=volumes,
labels=labels,
env_vars=env_vars,
command=command,
args=args,
ports=self.ports,
init_env_vars=self.get_init_env_vars(),
persistence_outputs=self.persistence_config.outputs,
persistence_data=self.persistence_config.data,
outputs_refs_jobs=self.outputs_refs_jobs,
outputs_refs_experiments=self.outputs_refs_experiments,
secret_refs=secret_refs,
configmap_refs=configmap_refs,
resources=resources,
ephemeral_token=ephemeral_token,
node_selector=node_selector,
affinity=affinity,
tolerations=tolerations,
init_context_mounts=context_mounts,
restart_policy=restart_policy)
return {
'replicas': replicas,
'restartPolicy': restart_policy,
'template': pod_template_spec
}
def _create_job(self,
task_type,
task_idx,
add_service,
command=None,
args=None,
env_vars=None,
resources=None,
annotations=None,
node_selector=None,
affinity=None,
tolerations=None,
max_restarts=None):
ephemeral_token = None
if self.token_scope:
ephemeral_token = RedisEphemeralTokens.generate_header_token(
scope=self.token_scope)
resource_name = self.resource_manager.get_resource_name(
task_type=task_type, task_idx=task_idx)
job_uuid = self.get_job_uuids(task_type=task_type, task_idx=task_idx)
reconcile_url = get_experiment_reconcile_url(self.experiment_name,
job_uuid)
labels = self.get_labels(task_type=task_type,
task_idx=task_idx,
job_uuid=job_uuid)
# Set and validate volumes
volumes, volume_mounts = get_pod_volumes(
persistence_outputs=self.persistence_config.outputs,
persistence_data=self.persistence_config.data)
refs_volumes, refs_volume_mounts = get_pod_refs_outputs_volumes(
outputs_refs=self.outputs_refs_jobs,
persistence_outputs=self.persistence_config.outputs)
volumes += refs_volumes
volume_mounts += refs_volume_mounts
refs_volumes, refs_volume_mounts = get_pod_refs_outputs_volumes(
outputs_refs=self.outputs_refs_experiments,
persistence_outputs=self.persistence_config.outputs)
volumes += refs_volumes
volume_mounts += refs_volume_mounts
shm_volumes, shm_volume_mounts = get_shm_volumes()
volumes += shm_volumes
volume_mounts += shm_volume_mounts
context_volumes, context_mounts = get_auth_context_volumes()
volumes += context_volumes
volume_mounts += context_mounts
pod = self.resource_manager.get_task_pod(
task_type=task_type,
task_idx=task_idx,
volume_mounts=volume_mounts,
volumes=volumes,
labels=labels,
env_vars=env_vars,
command=command,
args=args,
ports=self.ports,
init_env_vars=self.get_init_env_vars(),
persistence_outputs=self.persistence_config.outputs,
persistence_data=self.persistence_config.data,
outputs_refs_jobs=self.outputs_refs_jobs,
outputs_refs_experiments=self.outputs_refs_experiments,
secret_refs=self.spec.secret_refs,
config_map_refs=self.spec.config_map_refs,
resources=resources,
ephemeral_token=ephemeral_token,
node_selector=node_selector,
affinity=affinity,
tolerations=tolerations,
init_context_mounts=context_mounts,
reconcile_url=reconcile_url,
max_restarts=max_restarts,
restart_policy=get_pod_restart_policy(max_restarts))
pod_resp, _ = self.create_or_update_pod(name=resource_name,
body=pod,
reraise=True)
results = {'pod': pod_resp.to_dict()}
if add_service:
service = services.get_service(namespace=self.namespace,
name=resource_name,
labels=labels,
ports=self.ports,
target_ports=self.ports)
service_resp, _ = self.create_or_update_service(name=resource_name,
body=service,
reraise=True)
results['service'] = service_resp.to_dict()
return results
def _create_job(self,
task_type,
task_idx,
add_service,
command=None,
args=None,
env_vars=None,
resources=None,
node_selector=None,
affinity=None,
tolerations=None,
restart_policy='Never'):
ephemeral_token = RedisEphemeralTokens.generate_header_token(
scope=self.token_scope)
job_name = self.pod_manager.get_job_name(task_type=task_type,
task_idx=task_idx)
sidecar_args = get_sidecar_args(pod_id=job_name)
labels = self.pod_manager.get_labels(task_type=task_type,
task_idx=task_idx)
# Set and validate volumes
volumes, volume_mounts = get_pod_volumes(
persistence_outputs=self.persistence_config.outputs,
persistence_data=self.persistence_config.data)
refs_volumes, refs_volume_mounts = get_pod_refs_outputs_volumes(
outputs_refs=self.outputs_refs_jobs,
persistence_outputs=self.persistence_config.outputs)
volumes += refs_volumes
volume_mounts += refs_volume_mounts
refs_volumes, refs_volume_mounts = get_pod_refs_outputs_volumes(
outputs_refs=self.outputs_refs_experiments,
persistence_outputs=self.persistence_config.outputs)
volumes += refs_volumes
volume_mounts += refs_volume_mounts
shm_volumes, shm_volume_mounts = get_shm_volumes()
volumes += shm_volumes
volume_mounts += shm_volume_mounts
# Validate secret and configmap refs
secret_refs = validate_secret_refs(self.spec.secret_refs)
configmap_refs = validate_configmap_refs(self.spec.configmap_refs)
pod = self.pod_manager.get_pod(
task_type=task_type,
task_idx=task_idx,
volume_mounts=volume_mounts,
volumes=volumes,
labels=labels,
env_vars=env_vars,
command=command,
args=args,
sidecar_args=sidecar_args,
persistence_outputs=self.persistence_config.outputs,
persistence_data=self.persistence_config.data,
outputs_refs_jobs=self.outputs_refs_jobs,
outputs_refs_experiments=self.outputs_refs_experiments,
secret_refs=secret_refs,
configmap_refs=configmap_refs,
resources=resources,
ephemeral_token=ephemeral_token,
node_selector=node_selector,
affinity=affinity,
tolerations=tolerations,
restart_policy=restart_policy)
pod_resp, _ = self.create_or_update_pod(name=job_name, data=pod)
results = {'pod': pod_resp.to_dict()}
if add_service:
service = services.get_service(namespace=self.namespace,
name=job_name,
labels=labels,
ports=self.pod_manager.ports,
target_ports=self.pod_manager.ports)
service_resp, _ = self.create_or_update_service(name=job_name,
data=service)
results['service'] = service_resp.to_dict()
return results
def test_objects(self):
token = RedisEphemeralTokens()
assert token.key is not None
assert token.redis_key == RedisEphemeralTokens.KEY_EPHEMERAL_TOKENS.format(
token.key)
assert token.get_state() is None
assert token.salt is None
assert token.ttl is None
assert token.scope is None
token = RedisEphemeralTokens.generate(
scope=token.get_scope(1, 'experiment', 1))
assert token.get_state() is not None
assert token.salt is not None
assert token.ttl == conf.get(TTL_EPHEMERAL_TOKEN)
assert token.scope == token.get_scope(1, 'experiment', 1)
assert token.check_token('foo') is False
# Checking delete the token
assert token.get_state() is None
token = RedisEphemeralTokens.generate(
scope=token.get_scope(1, 'experiment', 1))
assert token.check_token(None) is False
# Checking delete the token
assert token.get_state() is None
token = RedisEphemeralTokens.generate(
scope=token.get_scope(1, 'experiment', 1))
valid = RedisEphemeralTokens.make_token(token)
assert token.check_token(valid) is True
# Checking delete the token
assert token.get_state() is None
assert token.salt is None
assert token.ttl is None
assert token.scope is None