/usr/lib/python2.7/dist-packages/boto/emr/connection.py is in python-boto 2.34.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 | # Copyright (c) 2010 Spotify AB
# Copyright (c) 2010-2011 Yelp
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
"""
Represents a connection to the EMR service
"""
import types
import boto
import boto.utils
from boto.ec2.regioninfo import RegionInfo
from boto.emr.emrobject import AddInstanceGroupsResponse, BootstrapActionList, \
Cluster, ClusterSummaryList, HadoopStep, \
InstanceGroupList, InstanceList, JobFlow, \
JobFlowStepList, \
ModifyInstanceGroupsResponse, \
RunJobFlowResponse, StepSummaryList
from boto.emr.step import JarStep
from boto.connection import AWSQueryConnection
from boto.exception import EmrResponseError
from boto.compat import six
class EmrConnection(AWSQueryConnection):
APIVersion = boto.config.get('Boto', 'emr_version', '2009-03-31')
DefaultRegionName = boto.config.get('Boto', 'emr_region_name', 'us-east-1')
DefaultRegionEndpoint = boto.config.get('Boto', 'emr_region_endpoint',
'elasticmapreduce.us-east-1.amazonaws.com')
ResponseError = EmrResponseError
# Constants for AWS Console debugging
DebuggingJar = 's3n://us-east-1.elasticmapreduce/libs/script-runner/script-runner.jar'
DebuggingArgs = 's3n://us-east-1.elasticmapreduce/libs/state-pusher/0.1/fetch'
def __init__(self, aws_access_key_id=None, aws_secret_access_key=None,
is_secure=True, port=None, proxy=None, proxy_port=None,
proxy_user=None, proxy_pass=None, debug=0,
https_connection_factory=None, region=None, path='/',
security_token=None, validate_certs=True, profile_name=None):
if not region:
region = RegionInfo(self, self.DefaultRegionName,
self.DefaultRegionEndpoint)
self.region = region
super(EmrConnection, self).__init__(aws_access_key_id,
aws_secret_access_key,
is_secure, port, proxy, proxy_port,
proxy_user, proxy_pass,
self.region.endpoint, debug,
https_connection_factory, path,
security_token,
validate_certs=validate_certs,
profile_name=profile_name)
# Many of the EMR hostnames are of the form:
# <region>.<service_name>.amazonaws.com
# rather than the more common:
# <service_name>.<region>.amazonaws.com
# so we need to explicitly set the region_name and service_name
# for the SigV4 signing.
self.auth_region_name = self.region.name
self.auth_service_name = 'elasticmapreduce'
def _required_auth_capability(self):
return ['hmac-v4']
def describe_cluster(self, cluster_id):
"""
Describes an Elastic MapReduce cluster
:type cluster_id: str
:param cluster_id: The cluster id of interest
"""
params = {
'ClusterId': cluster_id
}
return self.get_object('DescribeCluster', params, Cluster)
def describe_jobflow(self, jobflow_id):
"""
Describes a single Elastic MapReduce job flow
:type jobflow_id: str
:param jobflow_id: The job flow id of interest
"""
jobflows = self.describe_jobflows(jobflow_ids=[jobflow_id])
if jobflows:
return jobflows[0]
def describe_jobflows(self, states=None, jobflow_ids=None,
created_after=None, created_before=None):
"""
Retrieve all the Elastic MapReduce job flows on your account
:type states: list
:param states: A list of strings with job flow states wanted
:type jobflow_ids: list
:param jobflow_ids: A list of job flow IDs
:type created_after: datetime
:param created_after: Bound on job flow creation time
:type created_before: datetime
:param created_before: Bound on job flow creation time
"""
params = {}
if states:
self.build_list_params(params, states, 'JobFlowStates.member')
if jobflow_ids:
self.build_list_params(params, jobflow_ids, 'JobFlowIds.member')
if created_after:
params['CreatedAfter'] = created_after.strftime(
boto.utils.ISO8601)
if created_before:
params['CreatedBefore'] = created_before.strftime(
boto.utils.ISO8601)
return self.get_list('DescribeJobFlows', params, [('member', JobFlow)])
def describe_step(self, cluster_id, step_id):
"""
Describe an Elastic MapReduce step
:type cluster_id: str
:param cluster_id: The cluster id of interest
:type step_id: str
:param step_id: The step id of interest
"""
params = {
'ClusterId': cluster_id,
'StepId': step_id
}
return self.get_object('DescribeStep', params, HadoopStep)
def list_bootstrap_actions(self, cluster_id, marker=None):
"""
Get a list of bootstrap actions for an Elastic MapReduce cluster
:type cluster_id: str
:param cluster_id: The cluster id of interest
:type marker: str
:param marker: Pagination marker
"""
params = {
'ClusterId': cluster_id
}
if marker:
params['Marker'] = marker
return self.get_object('ListBootstrapActions', params, BootstrapActionList)
def list_clusters(self, created_after=None, created_before=None,
cluster_states=None, marker=None):
"""
List Elastic MapReduce clusters with optional filtering
:type created_after: datetime
:param created_after: Bound on cluster creation time
:type created_before: datetime
:param created_before: Bound on cluster creation time
:type cluster_states: list
:param cluster_states: Bound on cluster states
:type marker: str
:param marker: Pagination marker
"""
params = {}
if created_after:
params['CreatedAfter'] = created_after.strftime(
boto.utils.ISO8601)
if created_before:
params['CreatedBefore'] = created_before.strftime(
boto.utils.ISO8601)
if marker:
params['Marker'] = marker
if cluster_states:
self.build_list_params(params, cluster_states, 'ClusterStates.member')
return self.get_object('ListClusters', params, ClusterSummaryList)
def list_instance_groups(self, cluster_id, marker=None):
"""
List EC2 instance groups in a cluster
:type cluster_id: str
:param cluster_id: The cluster id of interest
:type marker: str
:param marker: Pagination marker
"""
params = {
'ClusterId': cluster_id
}
if marker:
params['Marker'] = marker
return self.get_object('ListInstanceGroups', params, InstanceGroupList)
def list_instances(self, cluster_id, instance_group_id=None,
instance_group_types=None, marker=None):
"""
List EC2 instances in a cluster
:type cluster_id: str
:param cluster_id: The cluster id of interest
:type instance_group_id: str
:param instance_group_id: The EC2 instance group id of interest
:type instance_group_types: list
:param instance_group_types: Filter by EC2 instance group type
:type marker: str
:param marker: Pagination marker
"""
params = {
'ClusterId': cluster_id
}
if instance_group_id:
params['InstanceGroupId'] = instance_group_id
if marker:
params['Marker'] = marker
if instance_group_types:
self.build_list_params(params, instance_group_types,
'InstanceGroupTypeList.member')
return self.get_object('ListInstances', params, InstanceList)
def list_steps(self, cluster_id, step_states=None, marker=None):
"""
List cluster steps
:type cluster_id: str
:param cluster_id: The cluster id of interest
:type step_states: list
:param step_states: Filter by step states
:type marker: str
:param marker: Pagination marker
"""
params = {
'ClusterId': cluster_id
}
if marker:
params['Marker'] = marker
if step_states:
self.build_list_params(params, step_states, 'StepStateList.member')
return self.get_object('ListSteps', params, StepSummaryList)
def add_tags(self, resource_id, tags):
"""
Create new metadata tags for the specified resource id.
:type resource_id: str
:param resource_id: The cluster id
:type tags: dict
:param tags: A dictionary containing the name/value pairs.
If you want to create only a tag name, the
value for that tag should be the empty string
(e.g. '') or None.
"""
assert isinstance(resource_id, six.string_types)
params = {
'ResourceId': resource_id,
}
params.update(self._build_tag_list(tags))
return self.get_status('AddTags', params, verb='POST')
def remove_tags(self, resource_id, tags):
"""
Remove metadata tags for the specified resource id.
:type resource_id: str
:param resource_id: The cluster id
:type tags: list
:param tags: A list of tag names to remove.
"""
params = {
'ResourceId': resource_id,
}
params.update(self._build_string_list('TagKeys', tags))
return self.get_status('RemoveTags', params, verb='POST')
def terminate_jobflow(self, jobflow_id):
"""
Terminate an Elastic MapReduce job flow
:type jobflow_id: str
:param jobflow_id: A jobflow id
"""
self.terminate_jobflows([jobflow_id])
def terminate_jobflows(self, jobflow_ids):
"""
Terminate an Elastic MapReduce job flow
:type jobflow_ids: list
:param jobflow_ids: A list of job flow IDs
"""
params = {}
self.build_list_params(params, jobflow_ids, 'JobFlowIds.member')
return self.get_status('TerminateJobFlows', params, verb='POST')
def add_jobflow_steps(self, jobflow_id, steps):
"""
Adds steps to a jobflow
:type jobflow_id: str
:param jobflow_id: The job flow id
:type steps: list(boto.emr.Step)
:param steps: A list of steps to add to the job
"""
if not isinstance(steps, list):
steps = [steps]
params = {}
params['JobFlowId'] = jobflow_id
# Step args
step_args = [self._build_step_args(step) for step in steps]
params.update(self._build_step_list(step_args))
return self.get_object(
'AddJobFlowSteps', params, JobFlowStepList, verb='POST')
def add_instance_groups(self, jobflow_id, instance_groups):
"""
Adds instance groups to a running cluster.
:type jobflow_id: str
:param jobflow_id: The id of the jobflow which will take the
new instance groups
:type instance_groups: list(boto.emr.InstanceGroup)
:param instance_groups: A list of instance groups to add to the job
"""
if not isinstance(instance_groups, list):
instance_groups = [instance_groups]
params = {}
params['JobFlowId'] = jobflow_id
params.update(self._build_instance_group_list_args(instance_groups))
return self.get_object('AddInstanceGroups', params,
AddInstanceGroupsResponse, verb='POST')
def modify_instance_groups(self, instance_group_ids, new_sizes):
"""
Modify the number of nodes and configuration settings in an
instance group.
:type instance_group_ids: list(str)
:param instance_group_ids: A list of the ID's of the instance
groups to be modified
:type new_sizes: list(int)
:param new_sizes: A list of the new sizes for each instance group
"""
if not isinstance(instance_group_ids, list):
instance_group_ids = [instance_group_ids]
if not isinstance(new_sizes, list):
new_sizes = [new_sizes]
instance_groups = zip(instance_group_ids, new_sizes)
params = {}
for k, ig in enumerate(instance_groups):
# could be wrong - the example amazon gives uses
# InstanceRequestCount, while the api documentation
# says InstanceCount
params['InstanceGroups.member.%d.InstanceGroupId' % (k+1) ] = ig[0]
params['InstanceGroups.member.%d.InstanceCount' % (k+1) ] = ig[1]
return self.get_object('ModifyInstanceGroups', params,
ModifyInstanceGroupsResponse, verb='POST')
def run_jobflow(self, name, log_uri=None, ec2_keyname=None,
availability_zone=None,
master_instance_type='m1.small',
slave_instance_type='m1.small', num_instances=1,
action_on_failure='TERMINATE_JOB_FLOW', keep_alive=False,
enable_debugging=False,
hadoop_version=None,
steps=[],
bootstrap_actions=[],
instance_groups=None,
additional_info=None,
ami_version=None,
api_params=None,
visible_to_all_users=None,
job_flow_role=None,
service_role=None):
"""
Runs a job flow
:type name: str
:param name: Name of the job flow
:type log_uri: str
:param log_uri: URI of the S3 bucket to place logs
:type ec2_keyname: str
:param ec2_keyname: EC2 key used for the instances
:type availability_zone: str
:param availability_zone: EC2 availability zone of the cluster
:type master_instance_type: str
:param master_instance_type: EC2 instance type of the master
:type slave_instance_type: str
:param slave_instance_type: EC2 instance type of the slave nodes
:type num_instances: int
:param num_instances: Number of instances in the Hadoop cluster
:type action_on_failure: str
:param action_on_failure: Action to take if a step terminates
:type keep_alive: bool
:param keep_alive: Denotes whether the cluster should stay
alive upon completion
:type enable_debugging: bool
:param enable_debugging: Denotes whether AWS console debugging
should be enabled.
:type hadoop_version: str
:param hadoop_version: Version of Hadoop to use. This no longer
defaults to '0.20' and now uses the AMI default.
:type steps: list(boto.emr.Step)
:param steps: List of steps to add with the job
:type bootstrap_actions: list(boto.emr.BootstrapAction)
:param bootstrap_actions: List of bootstrap actions that run
before Hadoop starts.
:type instance_groups: list(boto.emr.InstanceGroup)
:param instance_groups: Optional list of instance groups to
use when creating this job.
NB: When provided, this argument supersedes num_instances
and master/slave_instance_type.
:type ami_version: str
:param ami_version: Amazon Machine Image (AMI) version to use
for instances. Values accepted by EMR are '1.0', '2.0', and
'latest'; EMR currently defaults to '1.0' if you don't set
'ami_version'.
:type additional_info: JSON str
:param additional_info: A JSON string for selecting additional features
:type api_params: dict
:param api_params: a dictionary of additional parameters to pass
directly to the EMR API (so you don't have to upgrade boto to
use new EMR features). You can also delete an API parameter
by setting it to None.
:type visible_to_all_users: bool
:param visible_to_all_users: Whether the job flow is visible to all IAM
users of the AWS account associated with the job flow. If this
value is set to ``True``, all IAM users of that AWS
account can view and (if they have the proper policy permissions
set) manage the job flow. If it is set to ``False``, only
the IAM user that created the job flow can view and manage
it.
:type job_flow_role: str
:param job_flow_role: An IAM role for the job flow. The EC2
instances of the job flow assume this role. The default role is
``EMRJobflowDefault``. In order to use the default role,
you must have already created it using the CLI.
:type service_role: str
:param service_role: The IAM role that will be assumed by the Amazon
EMR service to access AWS resources on your behalf.
:rtype: str
:return: The jobflow id
"""
params = {}
if action_on_failure:
params['ActionOnFailure'] = action_on_failure
if log_uri:
params['LogUri'] = log_uri
params['Name'] = name
# Common instance args
common_params = self._build_instance_common_args(ec2_keyname,
availability_zone,
keep_alive,
hadoop_version)
params.update(common_params)
# NB: according to the AWS API's error message, we must
# "configure instances either using instance count, master and
# slave instance type or instance groups but not both."
#
# Thus we switch here on the truthiness of instance_groups.
if not instance_groups:
# Instance args (the common case)
instance_params = self._build_instance_count_and_type_args(
master_instance_type,
slave_instance_type,
num_instances)
params.update(instance_params)
else:
# Instance group args (for spot instances or a heterogenous cluster)
list_args = self._build_instance_group_list_args(instance_groups)
instance_params = dict(
('Instances.%s' % k, v) for k, v in six.iteritems(list_args)
)
params.update(instance_params)
# Debugging step from EMR API docs
if enable_debugging:
debugging_step = JarStep(name='Setup Hadoop Debugging',
action_on_failure='TERMINATE_JOB_FLOW',
main_class=None,
jar=self.DebuggingJar,
step_args=self.DebuggingArgs)
steps.insert(0, debugging_step)
# Step args
if steps:
step_args = [self._build_step_args(step) for step in steps]
params.update(self._build_step_list(step_args))
if bootstrap_actions:
bootstrap_action_args = [self._build_bootstrap_action_args(bootstrap_action) for bootstrap_action in bootstrap_actions]
params.update(self._build_bootstrap_action_list(bootstrap_action_args))
if ami_version:
params['AmiVersion'] = ami_version
if additional_info is not None:
params['AdditionalInfo'] = additional_info
if api_params:
for key, value in six.iteritems(api_params):
if value is None:
params.pop(key, None)
else:
params[key] = value
if visible_to_all_users is not None:
if visible_to_all_users:
params['VisibleToAllUsers'] = 'true'
else:
params['VisibleToAllUsers'] = 'false'
if job_flow_role is not None:
params['JobFlowRole'] = job_flow_role
if service_role is not None:
params['ServiceRole'] = service_role
response = self.get_object(
'RunJobFlow', params, RunJobFlowResponse, verb='POST')
return response.jobflowid
def set_termination_protection(self, jobflow_id,
termination_protection_status):
"""
Set termination protection on specified Elastic MapReduce job flows
:type jobflow_ids: list or str
:param jobflow_ids: A list of job flow IDs
:type termination_protection_status: bool
:param termination_protection_status: Termination protection status
"""
assert termination_protection_status in (True, False)
params = {}
params['TerminationProtected'] = (termination_protection_status and "true") or "false"
self.build_list_params(params, [jobflow_id], 'JobFlowIds.member')
return self.get_status('SetTerminationProtection', params, verb='POST')
def set_visible_to_all_users(self, jobflow_id, visibility):
"""
Set whether specified Elastic Map Reduce job flows are visible to all IAM users
:type jobflow_ids: list or str
:param jobflow_ids: A list of job flow IDs
:type visibility: bool
:param visibility: Visibility
"""
assert visibility in (True, False)
params = {}
params['VisibleToAllUsers'] = (visibility and "true") or "false"
self.build_list_params(params, [jobflow_id], 'JobFlowIds.member')
return self.get_status('SetVisibleToAllUsers', params, verb='POST')
def _build_bootstrap_action_args(self, bootstrap_action):
bootstrap_action_params = {}
bootstrap_action_params['ScriptBootstrapAction.Path'] = bootstrap_action.path
try:
bootstrap_action_params['Name'] = bootstrap_action.name
except AttributeError:
pass
args = bootstrap_action.args()
if args:
self.build_list_params(bootstrap_action_params, args, 'ScriptBootstrapAction.Args.member')
return bootstrap_action_params
def _build_step_args(self, step):
step_params = {}
step_params['ActionOnFailure'] = step.action_on_failure
step_params['HadoopJarStep.Jar'] = step.jar()
main_class = step.main_class()
if main_class:
step_params['HadoopJarStep.MainClass'] = main_class
args = step.args()
if args:
self.build_list_params(step_params, args, 'HadoopJarStep.Args.member')
step_params['Name'] = step.name
return step_params
def _build_bootstrap_action_list(self, bootstrap_actions):
if not isinstance(bootstrap_actions, list):
bootstrap_actions = [bootstrap_actions]
params = {}
for i, bootstrap_action in enumerate(bootstrap_actions):
for key, value in six.iteritems(bootstrap_action):
params['BootstrapActions.member.%s.%s' % (i + 1, key)] = value
return params
def _build_step_list(self, steps):
if not isinstance(steps, list):
steps = [steps]
params = {}
for i, step in enumerate(steps):
for key, value in six.iteritems(step):
params['Steps.member.%s.%s' % (i+1, key)] = value
return params
def _build_string_list(self, field, items):
if not isinstance(items, list):
items = [items]
params = {}
for i, item in enumerate(items):
params['%s.member.%s' % (field, i + 1)] = item
return params
def _build_tag_list(self, tags):
assert isinstance(tags, dict)
params = {}
for i, key_value in enumerate(sorted(six.iteritems(tags)), start=1):
key, value = key_value
current_prefix = 'Tags.member.%s' % i
params['%s.Key' % current_prefix] = key
if value:
params['%s.Value' % current_prefix] = value
return params
def _build_instance_common_args(self, ec2_keyname, availability_zone,
keep_alive, hadoop_version):
"""
Takes a number of parameters used when starting a jobflow (as
specified in run_jobflow() above). Returns a comparable dict for
use in making a RunJobFlow request.
"""
params = {
'Instances.KeepJobFlowAliveWhenNoSteps': str(keep_alive).lower(),
}
if hadoop_version:
params['Instances.HadoopVersion'] = hadoop_version
if ec2_keyname:
params['Instances.Ec2KeyName'] = ec2_keyname
if availability_zone:
params['Instances.Placement.AvailabilityZone'] = availability_zone
return params
def _build_instance_count_and_type_args(self, master_instance_type,
slave_instance_type, num_instances):
"""
Takes a master instance type (string), a slave instance type
(string), and a number of instances. Returns a comparable dict
for use in making a RunJobFlow request.
"""
params = {'Instances.MasterInstanceType': master_instance_type,
'Instances.SlaveInstanceType': slave_instance_type,
'Instances.InstanceCount': num_instances}
return params
def _build_instance_group_args(self, instance_group):
"""
Takes an InstanceGroup; returns a dict that, when its keys are
properly prefixed, can be used for describing InstanceGroups in
RunJobFlow or AddInstanceGroups requests.
"""
params = {'InstanceCount': instance_group.num_instances,
'InstanceRole': instance_group.role,
'InstanceType': instance_group.type,
'Name': instance_group.name,
'Market': instance_group.market}
if instance_group.market == 'SPOT':
params['BidPrice'] = instance_group.bidprice
return params
def _build_instance_group_list_args(self, instance_groups):
"""
Takes a list of InstanceGroups, or a single InstanceGroup. Returns
a comparable dict for use in making a RunJobFlow or AddInstanceGroups
request.
"""
if not isinstance(instance_groups, list):
instance_groups = [instance_groups]
params = {}
for i, instance_group in enumerate(instance_groups):
ig_dict = self._build_instance_group_args(instance_group)
for key, value in six.iteritems(ig_dict):
params['InstanceGroups.member.%d.%s' % (i+1, key)] = value
return params
|