.. _community.aws.cloudwatchlogs_log_group_metric_filter_module:


****************************************************
community.aws.cloudwatchlogs_log_group_metric_filter
****************************************************

**Manage CloudWatch log group metric filter**


Version added: 1.0.0

.. contents::
   :local:
   :depth: 1


Synopsis
--------
- Create, modify and delete CloudWatch log group metric filter.
- CloudWatch log group metric filter can be use with :ref:`community.aws.ec2_metric_alarm <community.aws.ec2_metric_alarm_module>`.



Requirements
------------
The below requirements are needed on the host that executes this module.

- boto
- boto3
- botocore
- python >= 2.6


Parameters
----------

.. raw:: html

    <table  border=0 cellpadding=0 class="documentation-table">
        <tr>
            <th colspan="2">Parameter</th>
            <th>Choices/<font color="blue">Defaults</font></th>
            <th width="100%">Comments</th>
        </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>aws_access_key</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>AWS access key. If not set then the value of the AWS_ACCESS_KEY_ID, AWS_ACCESS_KEY or EC2_ACCESS_KEY environment variable is used.</div>
                        <div>If <em>profile</em> is set this parameter is ignored.</div>
                        <div>Passing the <em>aws_access_key</em> and <em>profile</em> options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01.</div>
                        <div style="font-size: small; color: darkgreen"><br/>aliases: ec2_access_key, access_key</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>aws_ca_bundle</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">path</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The location of a CA Bundle to use when validating SSL certificates.</div>
                        <div>Only used for boto3 based modules.</div>
                        <div>Note: The CA Bundle is read &#x27;module&#x27; side and may need to be explicitly copied from the controller if not run locally.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>aws_config</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">dictionary</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>A dictionary to modify the botocore configuration.</div>
                        <div>Parameters can be found at <a href='https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html#botocore.config.Config'>https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html#botocore.config.Config</a>.</div>
                        <div>Only the &#x27;user_agent&#x27; key is used for boto modules. See <a href='http://boto.cloudhackers.com/en/latest/boto_config_tut.html#boto'>http://boto.cloudhackers.com/en/latest/boto_config_tut.html#boto</a> for more boto configuration.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>aws_secret_key</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>AWS secret key. If not set then the value of the AWS_SECRET_ACCESS_KEY, AWS_SECRET_KEY, or EC2_SECRET_KEY environment variable is used.</div>
                        <div>If <em>profile</em> is set this parameter is ignored.</div>
                        <div>Passing the <em>aws_secret_key</em> and <em>profile</em> options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01.</div>
                        <div style="font-size: small; color: darkgreen"><br/>aliases: ec2_secret_key, secret_key</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>debug_botocore_endpoint_logs</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">boolean</span>
                    </div>
                </td>
                <td>
                        <ul style="margin: 0; padding: 0"><b>Choices:</b>
                                    <li><div style="color: blue"><b>no</b>&nbsp;&larr;</div></li>
                                    <li>yes</li>
                        </ul>
                </td>
                <td>
                        <div>Use a botocore.endpoint logger to parse the unique (rather than total) &quot;resource:action&quot; API calls made during a task, outputing the set to the resource_actions key in the task results. Use the aws_resource_action callback to output to total list made during a playbook. The ANSIBLE_DEBUG_BOTOCORE_LOGS environment variable may also be used.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>ec2_url</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>Url to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). Ignored for modules where region is required. Must be specified for all other modules if region is not used. If not set then the value of the EC2_URL environment variable, if any, is used.</div>
                        <div style="font-size: small; color: darkgreen"><br/>aliases: aws_endpoint_url, endpoint_url</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>filter_name</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                         / <span style="color: red">required</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>A name for the metric filter you create.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>filter_pattern</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>A filter pattern for extracting metric data out of ingested log events. Required when <em>state=present</em>.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>log_group_name</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                         / <span style="color: red">required</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The name of the log group where the metric filter is applied on.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>metric_transformation</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">dictionary</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>A collection of information that defines how metric data gets emitted. Required when <em>state=present</em>.</div>
                </td>
            </tr>
                                <tr>
                    <td class="elbow-placeholder"></td>
                <td colspan="1">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>default_value</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">float</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The value to emit when a filter pattern does not match a log event.</div>
                </td>
            </tr>
            <tr>
                    <td class="elbow-placeholder"></td>
                <td colspan="1">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>metric_name</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The name of the cloudWatch metric.</div>
                </td>
            </tr>
            <tr>
                    <td class="elbow-placeholder"></td>
                <td colspan="1">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>metric_namespace</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The namespace of the cloudWatch metric.</div>
                </td>
            </tr>
            <tr>
                    <td class="elbow-placeholder"></td>
                <td colspan="1">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>metric_value</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The value to publish to the cloudWatch metric when a filter pattern matches a log event.</div>
                </td>
            </tr>

            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>profile</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>Uses a boto profile. Only works with boto &gt;= 2.24.0.</div>
                        <div>Using <em>profile</em> will override <em>aws_access_key</em>, <em>aws_secret_key</em> and <em>security_token</em> and support for passing them at the same time as <em>profile</em> has been deprecated.</div>
                        <div><em>aws_access_key</em>, <em>aws_secret_key</em> and <em>security_token</em> will be made mutually exclusive with <em>profile</em> after 2022-06-01.</div>
                        <div style="font-size: small; color: darkgreen"><br/>aliases: aws_profile</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>region</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>The AWS region to use. If not specified then the value of the AWS_REGION or EC2_REGION environment variable, if any, is used. See <a href='http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region'>http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region</a></div>
                        <div style="font-size: small; color: darkgreen"><br/>aliases: aws_region, ec2_region</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>security_token</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                    </div>
                </td>
                <td>
                </td>
                <td>
                        <div>AWS STS security token. If not set then the value of the AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variable is used.</div>
                        <div>If <em>profile</em> is set this parameter is ignored.</div>
                        <div>Passing the <em>security_token</em> and <em>profile</em> options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01.</div>
                        <div style="font-size: small; color: darkgreen"><br/>aliases: aws_security_token, access_token</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>state</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">string</span>
                         / <span style="color: red">required</span>
                    </div>
                </td>
                <td>
                        <ul style="margin: 0; padding: 0"><b>Choices:</b>
                                    <li>present</li>
                                    <li>absent</li>
                        </ul>
                </td>
                <td>
                        <div>Whether the rule is present or absent.</div>
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <div class="ansibleOptionAnchor" id="parameter-"></div>
                    <b>validate_certs</b>
                    <a class="ansibleOptionLink" href="#parameter-" title="Permalink to this option"></a>
                    <div style="font-size: small">
                        <span style="color: purple">boolean</span>
                    </div>
                </td>
                <td>
                        <ul style="margin: 0; padding: 0"><b>Choices:</b>
                                    <li>no</li>
                                    <li><div style="color: blue"><b>yes</b>&nbsp;&larr;</div></li>
                        </ul>
                </td>
                <td>
                        <div>When set to &quot;no&quot;, SSL certificates will not be validated for boto versions &gt;= 2.6.0.</div>
                </td>
            </tr>
    </table>
    <br/>


Notes
-----

.. note::
   - If parameters are not set within the module, the following environment variables can be used in decreasing order of precedence ``AWS_URL`` or ``EC2_URL``, ``AWS_PROFILE`` or ``AWS_DEFAULT_PROFILE``, ``AWS_ACCESS_KEY_ID`` or ``AWS_ACCESS_KEY`` or ``EC2_ACCESS_KEY``, ``AWS_SECRET_ACCESS_KEY`` or ``AWS_SECRET_KEY`` or ``EC2_SECRET_KEY``, ``AWS_SECURITY_TOKEN`` or ``EC2_SECURITY_TOKEN``, ``AWS_REGION`` or ``EC2_REGION``, ``AWS_CA_BUNDLE``
   - Ansible uses the boto configuration file (typically ~/.boto) if no credentials are provided. See https://boto.readthedocs.io/en/latest/boto_config_tut.html
   - ``AWS_REGION`` or ``EC2_REGION`` can be typically be used to specify the AWS region, when required, but this can also be configured in the boto config file



Examples
--------

.. code-block:: yaml+jinja

    - name: set metric filter on log group /fluentd/testcase
      community.aws.cloudwatchlogs_log_group_metric_filter:
        log_group_name: /fluentd/testcase
        filter_name: BoxFreeStorage
        filter_pattern: '{($.value = *) && ($.hostname = "box")}'
        state: present
        metric_transformation:
            metric_name: box_free_space
            metric_namespace: fluentd_metrics
            metric_value: "$.value"

    - name: delete metric filter on log group /fluentd/testcase
      community.aws.cloudwatchlogs_log_group_metric_filter:
        log_group_name: /fluentd/testcase
        filter_name: BoxFreeStorage
        state: absent



Return Values
-------------
Common return values are documented `here <https://docs.ansible.com/ansible/latest/reference_appendices/common_return_values.html#common-return-values>`_, the following are the fields unique to this module:

.. raw:: html

    <table border=0 cellpadding=0 class="documentation-table">
        <tr>
            <th colspan="1">Key</th>
            <th>Returned</th>
            <th width="100%">Description</th>
        </tr>
            <tr>
                <td colspan="1">
                    <div class="ansibleOptionAnchor" id="return-"></div>
                    <b>metric_filters</b>
                    <a class="ansibleOptionLink" href="#return-" title="Permalink to this return value"></a>
                    <div style="font-size: small">
                      <span style="color: purple">list</span>
                    </div>
                </td>
                <td>success</td>
                <td>
                            <div>Return the origin response value</div>
                    <br/>
                        <div style="font-size: smaller"><b>Sample:</b></div>
                        <div style="font-size: smaller; color: blue; word-wrap: break-word; word-break: break-all;">[{&#x27;default_value&#x27;: 3.1415, &#x27;metric_name&#x27;: &#x27;box_free_space&#x27;, &#x27;metric_namespace&#x27;: &#x27;made_with_ansible&#x27;, &#x27;metric_value&#x27;: &#x27;$.value&#x27;}]</div>
                </td>
            </tr>
    </table>
    <br/><br/>


Status
------


Authors
~~~~~~~

- Markus Bergholz (@markuman)
