mirror of https://github.com/ansible/ansible.git
Assign AWS Cloudwatch Metric Filter via Ansible (#59925)
* #42292 first draft. * fix some documentation * use snake dict keynames * return metric filter variable * rework documentation * try to fix documentation. fix condition when defaultValue is 0. update version string * fix intenion, syntax and undefined * try solve state documentation * define type for state in doc * rework integration test and fix minor typos * add defaults for integration test * update documentation, integration tests, and return value * fix code formatting and documentation * irgnore errors in ignore block * Update lib/ansible/modules/cloud/amazon/cloudwatchlogs_log_group_metric_filter.py Co-Authored-By: Jill R <4121322+jillr@users.noreply.github.com> * add options to metric_transformation * fix pep-8 Co-authored-by: Jill R <4121322+jillr@users.noreply.github.com>pull/66198/head
Markus Bergholz
5 years ago
committed by
Jill R
parent
b0b00b555f
commit
193879d462
@ -0,0 +1,221 @@
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#!/usr/bin/python
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# Copyright: Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = '''
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---
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module: cloudwatchlogs_log_group_metric_filter
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version_added: "2.10"
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author:
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- "Markus Bergholz (@markuman)"
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short_description: Manage CloudWatch log group metric filter
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description:
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- Create, modify and delete CloudWatch log group metric filter.
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- CloudWatch log group metric filter can be use with M(ec2_metric_alarm).
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requirements:
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- boto3
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- botocore
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options:
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state:
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description:
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- Whether the rule is present or absent.
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choices: ["present", "absent"]
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required: true
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type: str
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log_group_name:
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description:
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- The name of the log group where the metric filter is applied on.
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required: true
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type: str
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filter_name:
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description:
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- A name for the metric filter you create.
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required: true
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type: str
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filter_pattern:
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description:
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- A filter pattern for extracting metric data out of ingested log events. Required when I(state=present).
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type: str
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metric_transformation:
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description:
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- A collection of information that defines how metric data gets emitted. Required when I(state=present).
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type: dict
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suboptions:
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metric_name:
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description:
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- The name of the cloudWatch metric.
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type: str
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metric_namespace:
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description:
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- The namespace of the cloudWatch metric.
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type: str
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metric_value:
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description:
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- The value to publish to the cloudWatch metric when a filter pattern matches a log event.
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type: str
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default_value:
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description:
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- The value to emit when a filter pattern does not match a log event.
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type: float
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extends_documentation_fragment:
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- aws
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- ec2
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'''
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EXAMPLES = '''
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- name: set metric filter on log group /fluentd/testcase
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: /fluentd/testcase
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filter_name: BoxFreeStorage
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filter_pattern: '{($.value = *) && ($.hostname = "box")}'
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state: present
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metric_transformation:
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metric_name: box_free_space
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metric_namespace: fluentd_metrics
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metric_value: "$.value"
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- name: delete metric filter on log group /fluentd/testcase
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: /fluentd/testcase
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filter_name: BoxFreeStorage
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state: absent
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'''
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RETURN = """
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metric_filters:
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description: Return the origin response value
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returned: success
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type: list
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contains:
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creation_time:
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filter_name:
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filter_pattern:
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log_group_name:
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metric_filter_count:
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"""
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from ansible.module_utils.aws.core import AnsibleAWSModule, is_boto3_error_code, get_boto3_client_method_parameters
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from ansible.module_utils.ec2 import camel_dict_to_snake_dict
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try:
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from botocore.exceptions import ClientError, BotoCoreError, WaiterError
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except ImportError:
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pass # caught by AnsibleAWSModule
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def metricTransformationHandler(metricTransformations, originMetricTransformations=None):
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if originMetricTransformations:
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change = False
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originMetricTransformations = camel_dict_to_snake_dict(
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originMetricTransformations)
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for item in ["default_value", "metric_name", "metric_namespace", "metric_value"]:
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if metricTransformations.get(item) != originMetricTransformations.get(item):
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change = True
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else:
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change = True
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defaultValue = metricTransformations.get("default_value")
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if isinstance(defaultValue, int) or isinstance(defaultValue, float):
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retval = [
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{
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'metricName': metricTransformations.get("metric_name"),
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'metricNamespace': metricTransformations.get("metric_namespace"),
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'metricValue': metricTransformations.get("metric_value"),
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'defaultValue': defaultValue
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}
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]
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else:
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retval = [
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{
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'metricName': metricTransformations.get("metric_name"),
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'metricNamespace': metricTransformations.get("metric_namespace"),
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'metricValue': metricTransformations.get("metric_value"),
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}
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]
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return retval, change
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def main():
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arg_spec = dict(
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state=dict(type='str', required=True, choices=['present', 'absent']),
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log_group_name=dict(type='str', required=True),
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filter_name=dict(type='str', required=True),
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filter_pattern=dict(type='str'),
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metric_transformation=dict(type='dict', options=dict(
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metric_name=dict(type='str'),
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metric_namespace=dict(type='str'),
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metric_value=dict(type='str'),
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default_value=dict(type='float')
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)),
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)
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module = AnsibleAWSModule(
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argument_spec=arg_spec,
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supports_check_mode=True,
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required_if=[('state', 'present', ['metric_transformation', 'filter_pattern'])]
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)
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log_group_name = module.params.get("log_group_name")
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filter_name = module.params.get("filter_name")
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filter_pattern = module.params.get("filter_pattern")
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metric_transformation = module.params.get("metric_transformation")
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state = module.params.get("state")
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cwl = module.client('logs')
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# check if metric filter exists
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response = cwl.describe_metric_filters(
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logGroupName=log_group_name,
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filterNamePrefix=filter_name
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)
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if len(response.get("metricFilters")) == 1:
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originMetricTransformations = response.get(
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"metricFilters")[0].get("metricTransformations")[0]
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originFilterPattern = response.get("metricFilters")[
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0].get("filterPattern")
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else:
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originMetricTransformations = None
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originFilterPattern = None
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change = False
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metricTransformation = None
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if state == "absent" and originMetricTransformations:
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if not module.check_mode:
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response = cwl.delete_metric_filter(
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logGroupName=log_group_name,
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filterName=filter_name
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)
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change = True
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metricTransformation = [camel_dict_to_snake_dict(item) for item in [originMetricTransformations]]
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elif state == "present":
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metricTransformation, change = metricTransformationHandler(
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metricTransformations=metric_transformation, originMetricTransformations=originMetricTransformations)
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change = change or filter_pattern != originFilterPattern
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if change:
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if not module.check_mode:
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response = cwl.put_metric_filter(
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logGroupName=log_group_name,
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filterName=filter_name,
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filterPattern=filter_pattern,
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metricTransformations=metricTransformation
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)
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metricTransformation = [camel_dict_to_snake_dict(item) for item in metricTransformation]
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module.exit_json(changed=change, metric_filters=metricTransformation)
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if __name__ == '__main__':
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main()
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@ -0,0 +1,3 @@
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cloud/aws
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shippable/aws/group1
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cloudwatchlogs_log_group_metric_filter
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@ -0,0 +1,3 @@
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---
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log_group_name: '{{ resource_prefix }}/integrationtest'
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filter_name: '{{ resource_prefix }}/AnsibleTest'
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@ -0,0 +1,157 @@
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---
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- module_defaults:
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group/aws:
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aws_access_key: "{{ aws_access_key }}"
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aws_secret_key: "{{ aws_secret_key }}"
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security_token: "{{ security_token | default(omit) }}"
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region: "{{ aws_region }}"
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block:
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- name: create cloudwatch log group for integration test
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cloudwatchlogs_log_group:
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state: present
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log_group_name: '{{ log_group_name }}'
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retention: 1
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- name: check_mode set metric filter on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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filter_pattern: '{ ($.value = *) && ($.hostname = "box")}'
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state: present
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metric_transformation:
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metric_name: box_free_space
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metric_namespace: fluentd_metrics
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metric_value: "$.value"
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check_mode: yes
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register: out
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- name: check_mode state must be changed
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assert:
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that:
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- out is changed
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- out.metric_filters | count == 1
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- name: set metric filter on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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filter_pattern: '{ ($.value = *) && ($.hostname = "box")}'
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state: present
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metric_transformation:
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metric_name: box_free_space
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metric_namespace: fluentd_metrics
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metric_value: "$.value"
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register: out
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- name: create metric filter
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assert:
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that:
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- out is changed
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- out.metric_filters | count == 1
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- name: re-set metric filter on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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filter_pattern: '{ ($.value = *) && ($.hostname = "box")}'
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state: present
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metric_transformation:
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metric_name: box_free_space
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metric_namespace: fluentd_metrics
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metric_value: "$.value"
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register: out
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- name: metric filter must not change
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assert:
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that:
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- out is not changed
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- name: update metric transformation on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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filter_pattern: '{ ($.value = *) && ($.hostname = "box")}'
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state: present
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metric_transformation:
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metric_name: box_free_space
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metric_namespace: made_with_ansible
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metric_value: "$.value"
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default_value: 3.1415
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register: out
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- name: update metric filter
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assert:
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that:
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- out is changed
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- out.metric_filters[0].metric_namespace == "made_with_ansible"
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- out.metric_filters[0].default_value == 3.1415
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- name: update filter_pattern on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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filter_pattern: '{ ($.value = *) && ($.hostname = "ansible")}'
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state: present
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metric_transformation:
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metric_name: box_free_space
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metric_namespace: made_with_ansible
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metric_value: "$.value"
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register: out
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- name: update metric filter
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assert:
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that:
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- out is changed
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- out.metric_filters[0].metric_namespace == "made_with_ansible"
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- name: checkmode delete metric filter on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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state: absent
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check_mode: yes
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register: out
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- name: check_mode state must be changed
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assert:
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that:
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- out is changed
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- name: delete metric filter on '{{ log_group_name }}'
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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state: absent
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register: out
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- name: delete metric filter
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assert:
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that:
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- out is changed
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- name: delete metric filter on '{{ log_group_name }}' which does not exist
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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state: absent
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register: out
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- name: delete metric filter
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assert:
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that:
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- out is not changed
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always:
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- name: delete metric filter
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cloudwatchlogs_log_group_metric_filter:
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log_group_name: '{{ log_group_name }}'
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filter_name: '{{ filter_name }}'
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state: absent
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- name: delete cloudwatch log group for integration test
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cloudwatchlogs_log_group:
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state: absent
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log_group_name: '{{ log_group_name }}'
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ignore_errors: true
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