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| # Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. |
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| # Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved. | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
| import time | ||
| from enum import Enum | ||
|
|
||
| from nvflare.app_opt.job_launcher.job_launcher_spec import JobLauncherSpec | ||
|
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||
| from kubernetes import config | ||
| from kubernetes.client import Configuration | ||
| from kubernetes.client.api import core_v1_api | ||
| from kubernetes.client.rest import ApiException | ||
|
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|
|
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| class JobState(Enum): | ||
| STARTING = "starting" | ||
| RUNNING = "running" | ||
| TERMINATED = "terminated" | ||
| SUCCEEDED = "succeeded" | ||
| UNKNOWN = "unknown" | ||
|
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|
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| POD_STATE_MAPPING = { | ||
| "Pending": JobState.STARTING, | ||
| "Running": JobState.RUNNING, | ||
| "Succeeded": JobState.SUCCEEDED, | ||
| "Failed": JobState.TERMINATED, | ||
| "Unknown": JobState.UNKNOWN | ||
| } | ||
|
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|
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| class K8sJobHandle: | ||
| def __init__(self, job_id: str, api_instance: core_v1_api, job_config: dict, namespace='default'): | ||
| super().__init__() | ||
| self.job_id = job_id | ||
|
|
||
| self.api_instance = api_instance | ||
| self.namespace = namespace | ||
| self.pod_manifest = { | ||
| 'apiVersion': 'v1', | ||
| 'kind': 'Pod', | ||
| 'metadata': { | ||
| 'name': None # set by job_config['name'] | ||
| }, | ||
| 'spec': { | ||
| 'containers': None, # link to container_list | ||
| 'volumes': None # link to volume_list | ||
| } | ||
| } | ||
| self.volume_list = [ | ||
| { | ||
| 'name': None, | ||
| 'hostPath': { | ||
| 'path': None, | ||
| 'type': 'Directory' | ||
| } | ||
| } | ||
| ] | ||
| self.container_list = [ | ||
| { | ||
| 'image': None, | ||
| 'name': None, | ||
| 'command': ['/usr/local/bin/python'], | ||
| 'args': None, # args_list + args_dict + args_sets | ||
| 'volumeMounts': None, # volume_mount_list | ||
| 'imagePullPolicy': 'Always' | ||
| } | ||
| ] | ||
| self.container_args_python_args_list = [ | ||
| '-u', '-m', 'nvflare.private.fed.app.client.worker_process' | ||
| ] | ||
| self.container_args_module_args_dict = { | ||
| '-m': None, | ||
| '-w': None, | ||
| '-t': None, | ||
| '-d': None, | ||
| '-n': None, | ||
| '-c': None, | ||
| '-p': None, | ||
| '-g': None, | ||
| '-scheme': None, | ||
| '-s': None, | ||
| } | ||
| self.container_volume_mount_list = [ | ||
| { | ||
| 'name': None, | ||
| 'mountPath': None, | ||
| } | ||
| ] | ||
| self._make_manifest(job_config) | ||
|
|
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| def _make_manifest(self, job_config): | ||
| self.container_volume_mount_list = \ | ||
| job_config.get('volume_mount_list', | ||
| [{'name': 'workspace-nvflare', 'mountPath': '/workspace/nvflare'}] | ||
| ) | ||
| set_list = job_config.get('set_list') | ||
| if set_list is None: | ||
| self.container_args_module_args_sets = list() | ||
| else: | ||
| self.container_args_module_args_sets = ['--set'] + set_list | ||
| self.container_args_module_args_dict = \ | ||
| job_config.get('module_args', | ||
| { | ||
| '-m': None, | ||
| '-w': None, | ||
| '-t': None, | ||
| '-d': None, | ||
| '-n': None, | ||
| '-c': None, | ||
| '-p': None, | ||
| '-g': None, | ||
| '-scheme': None, | ||
| '-s': None | ||
| } | ||
| ) | ||
| self.container_args_module_args_dict_as_list = list() | ||
| for k, v in self.container_args_module_args_dict.items(): | ||
| self.container_args_module_args_dict_as_list.append(k) | ||
| self.container_args_module_args_dict_as_list.append(v) | ||
| self.volume_list = \ | ||
| job_config.get('volume_list', | ||
| [{ | ||
| 'name': None, | ||
| 'hostPath': { | ||
| 'path': None, | ||
| 'type': 'Directory' | ||
| } | ||
| }] | ||
| ) | ||
|
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||
| self.pod_manifest['metadata']['name'] = job_config.get('name') | ||
| self.pod_manifest['spec']['containers'] = self.container_list | ||
| self.pod_manifest['spec']['volumes'] = self.volume_list | ||
|
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||
| self.container_list[0]['image'] = job_config.get('image', 'nvflare/nvflare:2.5.0') | ||
| self.container_list[0]['name'] = job_config.get('container_name', 'nvflare_job') | ||
| self.container_list[0]['args'] = \ | ||
| self.container_args_python_args_list + \ | ||
| self.container_args_module_args_dict_as_list + \ | ||
| self.container_args_module_args_sets | ||
| self.container_list[0]['volumeMounts'] = self.container_volume_mount_list | ||
|
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||
| def get_manifest(self): | ||
| return self.pod_manifest | ||
|
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| def abort(self, timeout=None): | ||
| resp = self.api_instance.delete_namespaced_pod(name=self.job_id, namespace=self.namespace, grace_period_seconds=0) | ||
| return self.enter_states([JobState.TERMINATED], timeout=timeout) | ||
|
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||
| def get_state(self): | ||
| try: | ||
| resp = self.api_instance.read_namespaced_pod(name=self.job_id, namespace=self.namespace) | ||
| except ApiException as e: | ||
| return JobState.UNKNOWN | ||
| return POD_STATE_MAPPING.get(resp.status.phase, JobState.UNKNOWN) | ||
|
|
||
| def enter_states(self, job_states_to_enter: list, timeout=None): | ||
| starting_time = time.time() | ||
| if not isinstance(job_states_to_enter, (list, tuple)): | ||
| job_states_to_enter = [job_states_to_enter] | ||
| if not all([isinstance(js, JobState)] for js in job_states_to_enter): | ||
| raise ValueError(f"expect job_states_to_enter with valid values, but get {job_states_to_enter}") | ||
| while True: | ||
| job_state = self.get_state() | ||
| if job_state in job_states_to_enter: | ||
| return True | ||
| elif timeout is not None and time.time()-starting_time>timeout: | ||
| return False | ||
| time.sleep(1) | ||
|
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|
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| class K8sJobLauncher(JobLauncherSpec): | ||
| def __init__(self, config_file_path, namespace='default'): | ||
| super().__init__() | ||
|
|
||
| config.load_kube_config(config_file_path) | ||
| try: | ||
| c = Configuration().get_default_copy() | ||
| except AttributeError: | ||
| c = Configuration() | ||
| c.assert_hostname = False | ||
| Configuration.set_default(c) | ||
| self.core_v1 = core_v1_api.CoreV1Api() | ||
| self.namespace = namespace | ||
|
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| self.job_handle = None | ||
|
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| def launch_job(self, client, startup, job_id, args, app_custom_folder, target: str, scheme: str, | ||
| timeout=None) -> bool: | ||
|
|
||
| root_hostpath = "/home/azureuser/wksp/k2k/disk" | ||
| job_image = "localhost:32000/nvfl-k8s:0.0.1" | ||
| job_config = { | ||
| "name": job_id, | ||
| "image": job_image, | ||
| "container_name": f"container-{job_id}", | ||
| "volume_mount_list": [{'name':'workspace-nvflare', 'mountPath': '/workspace/nvflare'}], | ||
| "volume_list": [{ | ||
| 'name': "workspace-nvflare", | ||
| 'hostPath': { | ||
| 'path': root_hostpath, | ||
| 'type': 'Directory' | ||
| } | ||
| }], | ||
| "module_args": { | ||
| '-m': args.workspace, | ||
| '-w': startup, | ||
| '-t': client.token, | ||
| '-d': client.ssid, | ||
| '-n': job_id, | ||
| '-c': client.client_name, | ||
| '-p': "tcp://parent-pod:8004", | ||
| '-g': target, | ||
| '-scheme': scheme, | ||
| '-s': "fed_client.json" | ||
| }, | ||
| "set_list": args.set | ||
| } | ||
|
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| self.job_handle = K8sJobHandle(job_id, self.core_v1, job_config, namespace=self.namespace) | ||
| try: | ||
| self.core_v1.create_namespaced_pod(body=self.job_handle.get_manifest(), namespace=self.namespace) | ||
| if self.job_handle.enter_states([JobState.RUNNING], timeout=timeout): | ||
| return True | ||
| else: | ||
| return False | ||
| except ApiException as e: | ||
| return False | ||
|
|
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| def terminate(self): | ||
| if self.job_handle: | ||
| self.job_handle.abort() | ||
|
|
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| def poll(self): | ||
| if self.job_handle: | ||
| return self.job_handle.get_state() | ||
| else: | ||
| return JobState.UNKNOWN | ||
|
|
||
| def wait(self): | ||
| if self.job_handle: | ||
| self.job_handle.enter_states([JobState.SUCCEEDED, JobState.TERMINATED]) |
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