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# ec2_elb – De-registers or registers instances from EC2 ELBs

- Synopsis
- Requirements
- Parameters
- Notes
- Examples
- Status

## Synopsis

- This module de-registers or registers an AWS EC2 instance from the ELBs that it belongs to.
- Returns fact “ec2_elbs” which is a list of elbs attached to the instance if state=absent is passed as an argument.
- Will be marked changed when called only if there are ELBs found to operate on.

## Requirements

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

- python >= 2.6
- boto

## 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.
ec2_elbs - |  | List of ELB names, required for registration. The ec2_elbs fact should be used if there was a previous de-register.
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.
enable_availability_zone boolean | Choices: no yes ← | Whether to enable the availability zone of the instance on the target ELB if the availability zone has not already been enabled. If set to no, the task will fail if the availability zone is not enabled on the ELB.
instance_id - / required |  | EC2 Instance ID
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 | register or deregister the instance
validate_certs boolean | Choices: no yes ← | When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.
wait boolean | Choices: no yes ← | Wait for instance registration or deregistration to complete successfully before returning.
wait_timeout - | Default: 0 | Number of seconds to wait for an instance to change state. If 0 then this module may return an error if a transient error occurs. If non-zero then any transient errors are ignored until the timeout is reached. Ignored when wait=no.

## 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

    # basic pre_task and post_task example
    pre_tasks:
      - name: Gathering ec2 facts
        action: ec2_facts
      - name: Instance De-register
        local_action:
          module: ec2_elb
          instance_id: "{{ ansible_ec2_instance_id }}"
          state: absent
    roles:
      - myrole
    post_tasks:
      - name: Instance Register
        local_action:
          module: ec2_elb
          instance_id: "{{ ansible_ec2_instance_id }}"
          ec2_elbs: "{{ item }}"
          state: present
        loop: "{{ ec2_elbs }}"

## Status

- This module is guaranteed to have backward compatible interface changes going forward. [stableinterface]
- This module is maintained by the Ansible Community. [community]

### Authors

- John Jarvis (@jarv)

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