lambda_event - Creates, updates or deletes AWS Lambda function event mappings.¶

New in version 2.2.

Synopsis
- Requirements
Parameters
Notes
Examples
Return Values
Status
- Author

Synopsis ¶

This module allows the management of AWS Lambda function event source mappings such as DynamoDB and Kinesis stream events via the Ansible framework. These event source mappings are relevant only in the AWS Lambda pull model, where AWS Lambda invokes the function. It is idempotent and supports “Check” mode. Use module lambda to manage the lambda function itself and lambda_alias to manage function aliases.

Requirements ¶

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

boto
boto3
python >= 2.6

Parameters ¶

Parameter	Choices/Defaults	Comments
alias required		Name of the function alias. Mutually exclusive with `version`.
aws_access_key		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. aliases: ec2_access_key, access_key
aws_secret_key		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. aliases: ec2_secret_key, secret_key
ec2_url		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.
event_source	Choices: stream ←	Source of the event that triggers the lambda function.
lambda_function_arn required		The name or ARN of the lambda function. aliases: function_name, function_arn
profile (added in 1.6)		Uses a boto profile. Only works with boto >= 2.24.0.
region		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 http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region aliases: aws_region, ec2_region
security_token (added in 1.6)		AWS STS security token. If not set then the value of the AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variable is used. aliases: access_token
source_params required		Sub-parameters required for event source. == stream event source == `source_arn` The Amazon Resource Name (ARN) of the Kinesis or DynamoDB stream that is the event source. `enabled` Indicates whether AWS Lambda should begin polling the event source. Default is True. `batch_size` The largest number of records that AWS Lambda will retrieve from your event source at the time of invoking your function. Default is 100. `starting_position` The position in the stream where AWS Lambda should start reading. Choices are TRIM_HORIZON or LATEST.
state required	Choices: present ← absent	Describes the desired state.
validate_certs (added in 1.5)	Choices: no yes ←	When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.
version		Version of the Lambda function. Mutually exclusive with `alias`.

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_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
Ansible uses the boto configuration file (typically ~/.boto) if no credentials are provided. See http://boto.readthedocs.org/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 ¶

---
# Example that creates a lambda event notification for a DynamoDB stream
- hosts: localhost
  gather_facts: no
  vars:
    state: present
  tasks:
  - name: DynamoDB stream event mapping
    lambda_event:
      state: "{{ state | default('present') }}"
      event_source: stream
      function_name: "{{ function_name }}"
      alias: Dev
      source_params:
        source_arn: arn:aws:dynamodb:us-east-1:123456789012:table/tableName/stream/2016-03-19T19:51:37.457
        enabled: True
        batch_size: 100
        starting_position: TRIM_HORIZON

  - name: Show source event
    debug:
      var: lambda_stream_events

Return Values ¶

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
lambda_stream_events list	success	list of dictionaries returned by the API describing stream event mappings

Status ¶

This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.

Author ¶

Pierre Jodouin (@pjodouin), Ryan Brown (@ryansb)

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