async def ping(uri: str, message: str) -> None:
"""Ping odin at uri and send message.
:param uri: The location of the server
:param message: The message you expect to see back
:raises RuntimeError: If the server returns an error
"""
async with websockets.connect(uri) as websocket:
await websocket.send(json.dumps({APIField.COMMAND: 'PING', APIField.REQUEST: message}))
resp = json.loads(await websocket.recv())
if resp[APIField.STATUS] == APIStatus.ERROR:
LOGGER.error(resp)
raise RuntimeError(resp)
LOGGER.info(resp[APIField.RESPONSE])
async def request_generate_config(ws, config):
"""Use async to open a connection to serve.py and generate a config."""
async with websockets.connect(ws) as websocket:
await websocket.send(
json.dumps({
APIField.COMMAND: 'GENERATE',
APIField.REQUEST: config
}))
result = json.loads(await websocket.recv())
if result[APIField.STATUS] == APIStatus.ERROR:
LOGGER.error(result)
return
if result[APIField.STATUS] == APIStatus.OK:
LOGGER.info('Generated pipeline is called %s',
result[APIField.RESPONSE])
def submit(self, task: Task) -> str:
"""Submit a multi-worker PyTorchJob Task
:param task: The task definition
:type task: Task
:return: A string handle name
:rtype: str
"""
secrets = self._reference_secrets(task)
configmaps = self._generate_configmaps(task)
task.num_gpus = 1
pod_spec = task_to_pod_spec(task, container_name="pytorch-elasticjob", secrets=secrets, configmaps=configmaps)
template_metadata = client.V1ObjectMeta(name=task.name)
template = client.V1PodTemplateSpec(metadata=template_metadata, spec=pod_spec)
worker_replica_spec = {}
worker_replica_spec['replicas'] = task.num_workers
worker_replica_spec['restartPolicy'] = PyTorchElasticJobHandler.EXIT_CODE
worker_replica_spec['template'] = template
spec = {}
spec['replicaSpecs'] = {}
spec['replicaSpecs']['Worker'] = worker_replica_spec
spec['minReplicas'] = task.num_workers
spec['maxReplicas'] = task.num_workers
etcd_svc = getenv('PYTORCH_ELASTIC_ETCD_SVC')
if not etcd_svc:
LOGGER.warning("No environment variable set for etcd service, looking for first available in elastic-job namespace")
api = client.CoreV1Api()
etcd_svc = [x for x in api.list_namespaced_service('elastic-job').items if x.metadata.name =='etcd-service'][0].spec.cluster_ip
LOGGER.info("Using etcd service on %s:%d", etcd_svc, PyTorchElasticJobHandler.ETCD_PORT)
spec['rdzvEndpoint'] = f'{etcd_svc}:{PyTorchElasticJobHandler.ETCD_PORT}'
pytorch_job_spec = {}
pytorch_job_spec['kind'] = PyTorchElasticJobHandler.NAME
pytorch_job_spec['apiVersion'] = f'{PyTorchElasticJobHandler.GROUP}/{PyTorchElasticJobHandler.VERSION}'
pytorch_job_spec['metadata'] = client.V1ObjectMeta(generate_name=task.name)
pytorch_job_spec['spec'] = spec
pytorch_job = self.api.create_namespaced_custom_object(
PyTorchElasticJobHandler.GROUP,
PyTorchElasticJobHandler.VERSION,
self.namespace,
PyTorchElasticJobHandler.PLURAL,
pytorch_job_spec,
)
return pytorch_job['metadata']['name']
def create_user_http(url: str, jwt_token: str, username: str, password: str,
firstname: str, lastname: str) -> None:
"""Create or update a user over HTTP
:param url: the base URL
:param jwt_token: The JWT token representing this authentication
:param username: The user ID
:param password: The updated password
:param firstname: The firstname
:param lastname: The lastname
"""
user = {"username": username, "password": password}
if firstname:
user['firstname'] = firstname
if lastname:
user['lastname'] = lastname
headers = {'Authorization': f'Bearer {jwt_token}'}
try:
response = requests.get(f'{url}/v1/users/{username}')
if response.status_code == 401:
raise ValueError("Invalid login")
if response.status_code != 200:
# No such user exists so do a POST
response = requests.post(f'{url}/v1/users',
headers=headers,
json={"user": user})
if response.status_code != 200:
raise Exception(f"Failed to create user: {username}")
results = response.json()
LOGGER.info("Created new user")
LOGGER.info(json.dumps(results))
return
results = response.json()
LOGGER.info("Found existing user")
LOGGER.info(json.dumps(results))
except Exception as ex:
LOGGER.error(ex)
return
response = requests.put(f'{url}/v1/users/{username}',
json=user,
headers=headers)
results = response.json()
LOGGER.info(json.dumps(results))
async def schedule_pipeline(ws, work) -> None:
"""Use async to open a connection to serve.py and launch work
Blocks until the job completes (and websocket stays open)
"""
async with websockets.connect(ws) as websocket:
await websocket.send(
json.dumps({
APIField.COMMAND: 'START',
APIField.REQUEST: work
}))
result = json.loads(await websocket.recv())
while result[APIField.STATUS] != APIStatus.END:
if result[APIField.STATUS] == APIStatus.ERROR:
LOGGER.error(result)
return
if result[APIField.RESPONSE].startswith('PIPE_ID'):
pipe_id = result.split(' ')[-1]
LOGGER.info('Started %s', pipe_id)
else:
LOGGER.info(result[APIField.RESPONSE])
result = json.loads(await websocket.recv())
