# ec2_vpc_subnet – Manage subnets in AWS virtual private clouds

- Synopsis

- Requirements

- Parameters

- Notes

- Examples

- Return Values

- Status

## Synopsis

- Manage subnets in AWS virtual private clouds

## Requirements

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

- boto

- boto3

- python >= 2.6

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---

assign_instances_ipv6
boolean
added in 2.5

Choices:
- no ←
- yes

Specify `yes` to indicate that instances launched into the subnet should be automatically assigned an IPv6 address.

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
az - |  | The availability zone for the subnet.
cidr - |  | The CIDR block for the subnet. E.g. 192.0.2.0/24.

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_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.
ipv6_cidr - added in 2.5 |  | The IPv6 CIDR block for the subnet. The VPC must have a /56 block assigned and this value must be a valid IPv6 /64 that falls in the VPC range. Required if assign_instances_ipv6=true

map_public
boolean
added in 2.4

Choices:
- no ←
- yes

Specify `yes` to indicate that instances launched into the subnet should be assigned public IP address by default.

profile string |  | Uses a boto profile. Only works with boto >= 2.24.0.

purge_tags
boolean
added in 2.5

Choices:
- no
- yes ←

Whether or not to remove tags that do not appear in the tags list.

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
-

Choices:
- present ←
- absent

Create or remove the subnet

tags - |  | A dict of tags to apply to the subnet. Any tags currently applied to the subnet and not present here will be removed. aliases: resource_tags

validate_certs
boolean

Choices:
- no
- yes ←

When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.

vpc_id - / required |  | VPC ID of the VPC in which to create or delete the subnet.

wait
boolean
added in 2.5

Choices:
- no
- yes ←

When specified,state=present module will wait for subnet to be in available state before continuing.

wait_timeout - added in 2.5 | Default: 300 | Number of seconds to wait for subnet to become available wait=True.

## 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

    # Note: These examples do not set authentication details, see the AWS Guide for details.

    - name: Create subnet for database servers
      ec2_vpc_subnet:
        state: present
        vpc_id: vpc-123456
        cidr: 10.0.1.16/28
        tags:
          Name: Database Subnet
      register: database_subnet

    - name: Remove subnet for database servers
      ec2_vpc_subnet:
        state: absent
        vpc_id: vpc-123456
        cidr: 10.0.1.16/28

    - name: Create subnet with IPv6 block assigned
      ec2_vpc_subnet:
        state: present
        vpc_id: vpc-123456
        cidr: 10.1.100.0/24
        ipv6_cidr: 2001:db8:0:102::/64

    - name: Remove IPv6 block assigned to subnet
      ec2_vpc_subnet:
        state: present
        vpc_id: vpc-123456
        cidr: 10.1.100.0/24
        ipv6_cidr: ''

## Return Values

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

Key | Returned | Description
--- | --- | ---
subnet complex | state=present | Dictionary of subnet values
| assign_ipv6_address_on_creation boolean | state=present | whether IPv6 address is auto-assigned to new instances
| availability_zone string | state=present | Availability zone of the Subnet Sample: us-east-1a
| available_ip_address_count string | state=present | number of available IPv4 addresses Sample: 251
| cidr_block string | state=present | The IPv4 CIDR of the Subnet Sample: 10.0.0.0/16
| default_for_az boolean | state=present | indicates whether this is the default Subnet for this Availability Zone
| id string | state=present | Subnet resource id Sample: subnet-b883b2c4
| ipv6_association_id string | state=present | The IPv6 association ID for the currently associated CIDR Sample: subnet-cidr-assoc-b85c74d2
| ipv6_cidr_block string | state=present | The IPv6 CIDR block actively associated with the Subnet Sample: 2001:db8:0:102::/64
| ipv6_cidr_block_association_set complex | state=present | An array of IPv6 cidr block association set information.
|  | association_id string | always | The association ID
|  | ipv6_cidr_block string | always | The IPv6 CIDR block that is associated with the subnet.
|  | ipv6_cidr_block_state dictionary | always | A hash/dict that contains a single item. The state of the cidr block association.
|  |  | state string | always | The CIDR block association state.
| map_public_ip_on_launch boolean | state=present | whether public IP is auto-assigned to new instances
| state string | state=present | state of the Subnet Sample: available
| tags dictionary | state=present | tags attached to the Subnet, includes name Sample: {'Name': 'My Subnet', 'env': 'staging'}
| vpc_id string | state=present | the id of the VPC where this Subnet exists Sample: vpc-67236184

## Status

- This module is guaranteed to have backward compatible interface changes going forward. [stableinterface]

- This module is maintained by the Ansible Core Team. [core]

### Red Hat Support

More information about Red Hat’s support of this module is available from this Red Hat Knowledge Base article.

### Authors

- Robert Estelle (@erydo)

- Brad Davidson (@brandond)

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