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# lambda_alias – Creates, updates or deletes AWS Lambda function aliases

- Synopsis

- Requirements

- Parameters

- Notes

- Examples

- Return Values

- Status

## Synopsis

- This module allows the management of AWS Lambda functions aliases via the Ansible framework. It is idempotent and supports “Check” mode. Use module lambda to manage the lambda function itself and lambda_event to manage event source mappings.

## Requirements

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

- boto

- boto3

- python >= 2.6

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---
aws_access_key string |  | 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 string |  | 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
debug_botocore_endpoint_logs boolean added in 2.8 | Choices: no ← yes | Use a botocore.endpoint logger to parse the unique (rather than total) "resource:action" 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.
description - |  | A short, user-defined function alias description.
ec2_url string |  | 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.
function_name - / required |  | The name of the function alias.
name - / required |  | Name of the function alias. aliases: alias_name
profile string |  | Uses a boto profile. Only works with boto >= 2.24.0.
region string |  | 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 string |  | 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
state - / required | Choices: present ← absent | Describes the desired state.
validate_certs boolean | Choices: no yes ← | When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.
version - |  | Version associated with the Lambda function alias. A value of 0 (or omitted parameter) sets the alias to the $LATEST version. aliases: function_version

## 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 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

    ---
    # Simple example to create a lambda function and publish a version
    - hosts: localhost
      gather_facts: no
      vars:
        state: present
        project_folder: /path/to/deployment/package
        deployment_package: lambda.zip
        account: 123456789012
        production_version: 5
      tasks:
      - name: AWS Lambda Function
        lambda:
          state: "{{ state | default('present') }}"
          name: myLambdaFunction
          publish: True
          description: lambda function description
          code_s3_bucket: package-bucket
          code_s3_key: "lambda/{{ deployment_package }}"
          local_path: "{{ project_folder }}/{{ deployment_package }}"
          runtime: python2.7
          timeout: 5
          handler: lambda.handler
          memory_size: 128
          role: "arn:aws:iam::{{ account }}:role/API2LambdaExecRole"

      - name: Get information
        lambda_info:
          name: myLambdaFunction
        register: lambda_info
      - name: show results
        debug:
          msg: "{{ lambda_info['lambda_facts'] }}"

    # The following will set the Dev alias to the latest version ($LATEST) since version is omitted (or = 0)
      - name: "alias 'Dev' for function {{ lambda_info.lambda_facts.FunctionName }} "
        lambda_alias:
          state: "{{ state | default('present') }}"
          function_name: "{{ lambda_info.lambda_facts.FunctionName }}"
          name: Dev
          description: Development is $LATEST version

    # The QA alias will only be created when a new version is published (i.e. not = '$LATEST')
      - name: "alias 'QA' for function {{ lambda_info.lambda_facts.FunctionName }} "
        lambda_alias:
          state: "{{ state | default('present') }}"
          function_name: "{{ lambda_info.lambda_facts.FunctionName }}"
          name: QA
          version: "{{ lambda_info.lambda_facts.Version }}"
          description: "QA is version {{ lambda_info.lambda_facts.Version }}"
        when: lambda_info.lambda_facts.Version != "$LATEST"

    # The Prod alias will have a fixed version based on a variable
      - name: "alias 'Prod' for function {{ lambda_info.lambda_facts.FunctionName }} "
        lambda_alias:
          state: "{{ state | default('present') }}"
          function_name: "{{ lambda_info.lambda_facts.FunctionName }}"
          name: Prod
          version: "{{ production_version }}"
          description: "Production is version {{ production_version }}"

## Return Values

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

Key | Returned | Description
--- | --- | ---
alias_arn string | success | Full ARN of the function, including the alias Sample: arn:aws:lambda:us-west-2:123456789012:function:myFunction:dev
description string | success | A short description of the alias Sample: The development stage for my hot new app
function_version string | success | The qualifier that the alias refers to Sample: $LATEST
name string | success | The name of the alias assigned Sample: dev

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]

- This module is maintained by the Ansible Community. [community]

### Authors

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

Hint

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