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# coding: utf-8
# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for
# license information.
# --------------------------------------------------------------------------
# pylint: disable=line-too-long
import azure.mgmt.batchai.models as models
from azure.mgmt.batchai import BatchAIManagementClient
from devtools_testutils import AzureMgmtTestCase
from devtools_testutils import ResourceGroupPreparer
from devtools_testutils import StorageAccountPreparer
from helpers import Helpers
class ClusterTestCase(AzureMgmtTestCase):
def setUp(self):
super(ClusterTestCase, self).setUp()
self.client = Helpers.create_batchai_client(self) # type: BatchAIManagementClient
self.cluster_name = self.get_resource_name('cluster')
@ResourceGroupPreparer(location=Helpers.LOCATION)
@StorageAccountPreparer(name_prefix='psdk', location=Helpers.LOCATION, playback_fake_resource=Helpers.FAKE_STORAGE)
def test_creation_and_deletion(self, resource_group, location, storage_account, storage_account_key):
"""Tests basic use-case scenario.
1. Create cluster
2. Execute a task on the host
3. Execute a task in a docker container
4. Delete cluster
"""
cluster = Helpers.create_cluster(
self.client, location, resource_group.name, self.cluster_name, 'STANDARD_D1', 1,
storage_account.name, storage_account_key)
self.assertEqual(cluster.name, self.cluster_name)
self.assertIsNone(cluster.errors)
self.assertEqual(cluster.vm_size, 'STANDARD_D1')
# Verify that the cluster is reported in the list of clusters
Helpers.assert_existing_clusters_are(self, self.client, resource_group.name, [self.cluster_name])
# Verify that one node is allocated and become available
self.assertEqual(
Helpers.wait_for_nodes(self.is_live, self.client, resource_group.name, self.cluster_name, 1,
Helpers.NODE_STARTUP_TIMEOUT_SEC), 1)
Helpers.assert_remote_login_info_reported_for_nodes(self, self.client, resource_group.name,
self.cluster_name, 1)
# Verify that the cluster able to run tasks.
self.assertCanRunJobOnHost(resource_group, location, cluster.id)
self.assertCanRunJobInContainer(resource_group, location, cluster.id)
# Test cluster deletion
self.client.clusters.delete(resource_group.name, Helpers.DEFAULT_WORKSPACE_NAME, self.cluster_name).result()
Helpers.assert_existing_clusters_are(self, self.client, resource_group.name, [])
@ResourceGroupPreparer(location=Helpers.LOCATION)
@StorageAccountPreparer(name_prefix='psdk', location=Helpers.LOCATION, playback_fake_resource=Helpers.FAKE_STORAGE)
def test_setup_task_execution(self, resource_group, location, storage_account, storage_account_key):
"""Tests setup task execution.
"""
cluster = Helpers.create_cluster(
self.client, location, resource_group.name, self.cluster_name, 'STANDARD_D1', 1,
storage_account.name, storage_account_key,
setup_task_cmd='echo $GREETING $SECRET_GREETING',
setup_task_env={'GREETING': 'setup task'},
setup_task_secrets={'SECRET_GREETING': 'has a secret'}) # type: models.Cluster
# Verify that the cluster is reported in the list of clusters
Helpers.assert_existing_clusters_are(self, self.client, resource_group.name, [self.cluster_name])
# Verify that one node is allocated and become available
self.assertEqual(
Helpers.wait_for_nodes(self.is_live, self.client, resource_group.name, self.cluster_name, 1,
Helpers.NODE_STARTUP_TIMEOUT_SEC), 1)
# Check that server doesn't return values for secrets
self.assertEqual(len(cluster.node_setup.setup_task.secrets), 1)
self.assertEqual(cluster.node_setup.setup_task.secrets[0].name, 'SECRET_GREETING')
self.assertIsNone(cluster.node_setup.setup_task.secrets[0].value)
# Verify that the setup task is completed by checking generated output. BatchAI reports a path which was auto-
# generated for storing setup output logs.
setup_task_output_path = cluster.node_setup.setup_task.std_out_err_path_suffix
nodes = Helpers.get_node_ids(self.client, resource_group.name, self.cluster_name)
self.assertEqual(len(nodes), 1)
node_id = nodes[0]
Helpers.assert_file_in_file_share(self, storage_account.name, storage_account_key,
setup_task_output_path,
'stdout-{0}.txt'.format(node_id),
u'setup task has a secret\n')
Helpers.assert_file_in_file_share(self, storage_account.name, storage_account_key,
setup_task_output_path, 'stderr-{0}.txt'.format(node_id), u'')
self.client.clusters.delete(resource_group.name, Helpers.DEFAULT_WORKSPACE_NAME, self.cluster_name).result()
@ResourceGroupPreparer(location=Helpers.LOCATION)
@StorageAccountPreparer(name_prefix='psdk', location=Helpers.LOCATION, playback_fake_resource=Helpers.FAKE_STORAGE)
def test_cluster_resizing(self, resource_group, location, storage_account, storage_account_key):
"""Tests manual cluster resizing"""
cluster = Helpers.create_cluster(
self.client, location, resource_group.name, self.cluster_name, 'STANDARD_D1', 1,
storage_account.name, storage_account_key)
# Verify that one node is allocated and become available
self.assertEqual(
Helpers.wait_for_nodes(self.is_live, self.client, resource_group.name, self.cluster_name, 1,
Helpers.NODE_STARTUP_TIMEOUT_SEC), 1)
Helpers.assert_remote_login_info_reported_for_nodes(self, self.client, resource_group.name,
self.cluster_name, 1)
self.assertCanResizeCluster(resource_group, 0)
self.assertCanResizeCluster(resource_group, 1)
# Verify that cluster able to run tasks after resizing.
self.assertCanRunJobOnHost(resource_group, location, cluster.id)
self.client.clusters.delete(resource_group.name, Helpers.DEFAULT_WORKSPACE_NAME, self.cluster_name).result()
@ResourceGroupPreparer(location=Helpers.LOCATION)
@StorageAccountPreparer(name_prefix='psdk', location=Helpers.LOCATION, playback_fake_resource=Helpers.FAKE_STORAGE)
def test_auto_scaling(self, resource_group, location, storage_account, storage_account_key):
"""Tests auto-scaling"""
# Create the cluster with no nodes.
cluster = Helpers.create_cluster(
self.client, location, resource_group.name, self.cluster_name, 'STANDARD_D1', 0,
storage_account.name, storage_account_key)
# Switch the cluster into auto-scale mode
self.client.clusters.update(resource_group.name, Helpers.DEFAULT_WORKSPACE_NAME, self.cluster_name,
scale_settings=models.ScaleSettings(
auto_scale=models.AutoScaleSettings(
minimum_node_count=0,
maximum_node_count=1)))
# Submit a task. BatchAI must increase the number of nodes to execute the task.
self.assertCanRunJobOnHost(resource_group, location, cluster.id, timeout_sec=Helpers.AUTO_SCALE_TIMEOUT_SEC)
# Verify that cluster downsized to zero since there are no more jobs for it
self.assertEqual(
Helpers.wait_for_nodes(self.is_live, self.client, resource_group.name, self.cluster_name, 0,
Helpers.NODE_STARTUP_TIMEOUT_SEC), 0)
self.client.clusters.delete(resource_group.name, Helpers.DEFAULT_WORKSPACE_NAME, self.cluster_name).result()
def assertCanRunJobInContainer(self, resource_group, location, cluster_id, timeout_sec=Helpers.MINUTE):
self.assertCanRunJob(resource_group, location, cluster_id, 'container_job',
models.ContainerSettings(image_source_registry=models.ImageSourceRegistry(image="ubuntu")),
timeout_sec)
def assertCanRunJobOnHost(self, resource_group, location, cluster_id, timeout_sec=Helpers.MINUTE):
self.assertCanRunJob(resource_group, location, cluster_id, 'host_job', None, timeout_sec)
def assertCanRunJob(self, resource_group, location, cluster_id, job_name, container_settings, timeout_sec):
Helpers.create_custom_job(self.client, resource_group.name, cluster_id, job_name, 1,
'echo hello | tee $AZ_BATCHAI_OUTPUT_OUTPUTS/hi.txt', container=container_settings)
# Verify if the job finishes reasonably fast.
self.assertEqual(
Helpers.wait_for_job_completion(self.is_live, self.client, resource_group.name, job_name, timeout_sec),
models.ExecutionState.succeeded)
# Verify if output files and standard output files are available and contain expected greeting.
Helpers.assert_job_files_are(self, self.client, resource_group.name, job_name, 'OUTPUTS',
{u'hi.txt': u'hello\n'})
Helpers.assert_job_files_are(self, self.client, resource_group.name, job_name,
Helpers.STANDARD_OUTPUT_DIRECTORY_ID,
{u'stdout.txt': u'hello\n', u'stderr.txt': ''})
def assertCanResizeCluster(self, resource_group, target):
self.client.clusters.update(resource_group.name, Helpers.DEFAULT_WORKSPACE_NAME, self.cluster_name,
scale_settings=models.ScaleSettings(
manual=models.ManualScaleSettings(target_node_count=target)))
self.assertEqual(
Helpers.wait_for_nodes(self.is_live, self.client, resource_group.name, self.cluster_name, target,
Helpers.NODE_STARTUP_TIMEOUT_SEC),
target)
Helpers.assert_remote_login_info_reported_for_nodes(self, self.client, resource_group.name,
self.cluster_name, target)
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