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applicationutils.py
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# Copyright 2014 Amazon.com, Inc. or its affiliates. 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. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.
from awscli.customizations.emr import constants
from awscli.customizations.emr import emrutils
from awscli.customizations.emr import exceptions
def build_applications(region,
parsed_applications, ami_version=None):
app_list = []
step_list = []
ba_list = []
for app_config in parsed_applications:
app_name = app_config['Name'].lower()
if app_name == constants.HIVE:
hive_version = constants.LATEST
step_list.append(
_build_install_hive_step(region=region))
args = app_config.get('Args')
if args is not None:
hive_site_path = _find_matching_arg(
key=constants.HIVE_SITE_KEY, args_list=args)
if hive_site_path is not None:
step_list.append(
_build_install_hive_site_step(
region=region,
hive_site_path=hive_site_path))
elif app_name == constants.PIG:
pig_version = constants.LATEST
step_list.append(
_build_pig_install_step(
region=region))
elif app_name == constants.GANGLIA:
ba_list.append(
_build_ganglia_install_bootstrap_action(
region=region))
elif app_name == constants.HBASE:
ba_list.append(
_build_hbase_install_bootstrap_action(
region=region))
if ami_version >= '3.0':
step_list.append(
_build_hbase_install_step(
constants.HBASE_PATH_HADOOP2_INSTALL_JAR))
elif ami_version >= '2.1':
step_list.append(
_build_hbase_install_step(
constants.HBASE_PATH_HADOOP1_INSTALL_JAR))
else:
raise ValueError('aws: error: AMI version ' + ami_version +
'is not compatible with HBase.')
elif app_name == constants.IMPALA:
ba_list.append(
_build_impala_install_bootstrap_action(
region=region,
args=app_config.get('Args')))
else:
app_list.append(
_build_supported_product(
app_config['Name'], app_config.get('Args')))
return app_list, ba_list, step_list
def _build_supported_product(name, args):
if args is None:
args = []
config = {'Name': name.lower(), 'Args': args}
return config
def _build_ganglia_install_bootstrap_action(region):
return emrutils.build_bootstrap_action(
name=constants.INSTALL_GANGLIA_NAME,
path=emrutils.build_s3_link(
relative_path=constants.GANGLIA_INSTALL_BA_PATH,
region=region))
def _build_hbase_install_bootstrap_action(region):
return emrutils.build_bootstrap_action(
name=constants.INSTALL_HBASE_NAME,
path=emrutils.build_s3_link(
relative_path=constants.HBASE_INSTALL_BA_PATH,
region=region))
def _build_hbase_install_step(jar):
return emrutils.build_step(
jar=jar,
name=constants.START_HBASE_NAME,
action_on_failure=constants.TERMINATE_CLUSTER,
args=constants.HBASE_INSTALL_ARG)
def _build_impala_install_bootstrap_action(region, args=None):
args_list = [
constants.BASE_PATH_ARG,
emrutils.build_s3_link(region=region),
constants.IMPALA_VERSION,
constants.LATEST]
if args is not None:
args_list.append(constants.IMPALA_CONF)
args_list.append(','.join(args))
return emrutils.build_bootstrap_action(
name=constants.INSTALL_IMPALA_NAME,
path=emrutils.build_s3_link(
relative_path=constants.IMPALA_INSTALL_PATH,
region=region),
args=args_list)
def _build_install_hive_step(region,
action_on_failure=constants.TERMINATE_CLUSTER):
step_args = [
emrutils.build_s3_link(constants.HIVE_SCRIPT_PATH, region),
constants.INSTALL_HIVE_ARG,
constants.BASE_PATH_ARG,
emrutils.build_s3_link(constants.HIVE_BASE_PATH, region),
constants.HIVE_VERSIONS,
constants.LATEST]
step = emrutils.build_step(
name=constants.INSTALL_HIVE_NAME,
action_on_failure=action_on_failure,
jar=emrutils.build_s3_link(constants.SCRIPT_RUNNER_PATH, region),
args=step_args)
return step
def _build_install_hive_site_step(region, hive_site_path,
action_on_failure=constants.CANCEL_AND_WAIT):
step_args = [
emrutils.build_s3_link(constants.HIVE_SCRIPT_PATH, region),
constants.BASE_PATH_ARG,
emrutils.build_s3_link(constants.HIVE_BASE_PATH),
constants.INSTALL_HIVE_SITE_ARG,
hive_site_path,
constants.HIVE_VERSIONS,
constants.LATEST]
step = emrutils.build_step(
name=constants.INSTALL_HIVE_SITE_NAME,
action_on_failure=action_on_failure,
jar=emrutils.build_s3_link(constants.SCRIPT_RUNNER_PATH, region),
args=step_args)
return step
def _build_pig_install_step(region,
action_on_failure=constants.TERMINATE_CLUSTER):
step_args = [
emrutils.build_s3_link(constants.PIG_SCRIPT_PATH, region),
constants.INSTALL_PIG_ARG,
constants.BASE_PATH_ARG,
emrutils.build_s3_link(constants.PIG_BASE_PATH, region),
constants.PIG_VERSIONS,
constants.LATEST]
step = emrutils.build_step(
name=constants.INSTALL_PIG_NAME,
action_on_failure=action_on_failure,
jar=emrutils.build_s3_link(constants.SCRIPT_RUNNER_PATH, region),
args=step_args)
return step
def _find_matching_arg(key, args_list):
for arg in args_list:
if key in arg:
return arg
return None