amazon.aws.ec2_vpc_dhcp_option module – Manages DHCP Options, and can ensure the DHCP options for the given VPC match what’s requested

Note

This module is part of the amazon.aws collection (version 5.1.0).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install amazon.aws. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: amazon.aws.ec2_vpc_dhcp_option.

New in amazon.aws 1.0.0

Synopsis

  • This module removes, or creates DHCP option sets, and can associate them to a VPC.

  • Optionally, a new DHCP Options set can be created that converges a VPC’s existing DHCP option set with values provided.

  • When dhcp_options_id is provided, the module will 1. remove (with state=’absent’) 2. ensure tags are applied (if state=’present’ and tags are provided 3. attach it to a VPC (if state=’present’ and a vpc_id is provided.

  • If any of the optional values are missing, they will either be treated as a no-op (i.e., inherit what already exists for the VPC)

  • To remove existing options while inheriting, supply an empty value (e.g. set ntp_servers to [] if you want to remove them from the VPC’s options)

Requirements

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

  • python >= 3.6

  • boto3 >= 1.18.0

  • botocore >= 1.21.0

Parameters

Parameter

Comments

access_key

aliases: aws_access_key_id, aws_access_key, ec2_access_key

string

AWS access key ID.

See the AWS documentation for more information about access tokens https://docs.aws.amazon.com/general/latest/gr/aws-sec-cred-types.html#access-keys-and-secret-access-keys.

The AWS_ACCESS_KEY_ID, AWS_ACCESS_KEY or EC2_ACCESS_KEY environment variables may also be used in decreasing order of preference.

The aws_access_key and profile options are mutually exclusive.

The aws_access_key_id alias was added in release 5.1.0 for consistency with the AWS botocore SDK.

The ec2_access_key alias has been deprecated and will be removed in a release after 2024-12-01.

Support for the EC2_ACCESS_KEY environment variable has been deprecated and will be removed in a release after 2024-12-01.

aws_ca_bundle

path

The location of a CA Bundle to use when validating SSL certificates.

The AWS_CA_BUNDLE environment variable may also be used.

aws_config

dictionary

A dictionary to modify the botocore configuration.

Parameters can be found in the AWS documentation https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html#botocore.config.Config.

debug_botocore_endpoint_logs

boolean

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.

Choices:

  • false ← (default)

  • true

delete_old

boolean

Whether to delete the old VPC DHCP option set when associating a new one.

This is primarily useful for debugging/development purposes when you want to quickly roll back to the old option set. Note that this setting will be ignored, and the old DHCP option set will be preserved, if it is in use by any other VPC. (Otherwise, AWS will return an error.)

Choices:

  • false

  • true ← (default)

dhcp_options_id

string

The resource_id of an existing DHCP options set. If this is specified, then it will override other settings, except tags (which will be updated to match)

dns_servers

list / elements=string

A list of IP addresses to set the DNS servers for the VPC to.

domain_name

string

The domain name to set in the DHCP option sets.

endpoint_url

aliases: ec2_url, aws_endpoint_url, s3_url

string

URL to connect to instead of the default AWS endpoints. While this can be used to connection to other AWS-compatible services the amazon.aws and community.aws collections are only tested against AWS.

The AWS_URL or EC2_URL environment variables may also be used, in decreasing order of preference.

The ec2_url and s3_url aliases have been deprecated and will be removed in a release after 2024-12-01.

Support for the EC2_URL environment variable has been deprecated and will be removed in a release after 2024-12-01.

inherit_existing

boolean

For any DHCP options not specified in these parameters, whether to inherit them from the options set already applied to vpc_id, or to reset them to be empty.

Choices:

  • false ← (default)

  • true

netbios_name_servers

list / elements=string

List of hosts to advertise as NetBIOS servers.

netbios_node_type

integer

NetBIOS node type to advertise in the DHCP options. The AWS recommendation is to use 2 (when using netbios name services) https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html

ntp_servers

list / elements=string

List of hosts to advertise as NTP servers for the VPC.

profile

aliases: aws_profile

string

A named AWS profile to use for authentication.

See the AWS documentation for more information about named profiles https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-profiles.html.

The AWS_PROFILE environment variable may also be used.

The profile option is mutually exclusive with the aws_access_key, aws_secret_key and security_token options.

purge_tags

boolean

If purge_tags=true and tags is set, existing tags will be purged from the resource to match exactly what is defined by tags parameter.

If the tags parameter is not set then tags will not be modified, even if purge_tags=True.

Tag keys beginning with aws: are reserved by Amazon and can not be modified. As such they will be ignored for the purposes of the purge_tags parameter. See the Amazon documentation for more information https://docs.aws.amazon.com/general/latest/gr/aws_tagging.html#tag-conventions.

Choices:

  • false

  • true ← (default)

region

aliases: aws_region, ec2_region

string

The AWS region to use.

For global services such as IAM, Route53 and CloudFront, region is ignored.

The AWS_REGION or EC2_REGION environment variables may also be used.

See the Amazon AWS documentation for more information http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region.

The ec2_region alias has been deprecated and will be removed in a release after 2024-12-01

Support for the EC2_REGION environment variable has been deprecated and will be removed in a release after 2024-12-01.

secret_key

aliases: aws_secret_access_key, aws_secret_key, ec2_secret_key

string

AWS secret access key.

See the AWS documentation for more information about access tokens https://docs.aws.amazon.com/general/latest/gr/aws-sec-cred-types.html#access-keys-and-secret-access-keys.

The AWS_SECRET_ACCESS_KEY, AWS_SECRET_KEY, or EC2_SECRET_KEY environment variables may also be used in decreasing order of preference.

The secret_key and profile options are mutually exclusive.

The aws_secret_access_key alias was added in release 5.1.0 for consistency with the AWS botocore SDK.

The ec2_secret_key alias has been deprecated and will be removed in a release after 2024-12-01.

Support for the EC2_SECRET_KEY environment variable has been deprecated and will be removed in a release after 2024-12-01.

session_token

aliases: aws_session_token, security_token, aws_security_token, access_token

string

AWS STS session token for use with temporary credentials.

See the AWS documentation for more information about access tokens https://docs.aws.amazon.com/general/latest/gr/aws-sec-cred-types.html#access-keys-and-secret-access-keys.

The AWS_SESSION_TOKEN, AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variables may also be used in decreasing order of preference.

The security_token and profile options are mutually exclusive.

Aliases aws_session_token and session_token were added in release 3.2.0, with the parameter being renamed from security_token to session_token in release 6.0.0.

The security_token, aws_security_token, and access_token aliases have been deprecated and will be removed in a release after 2024-12-01.

Support for the EC2_SECRET_KEY and AWS_SECURITY_TOKEN environment variables has been deprecated and will be removed in a release after 2024-12-01.

state

string

create/assign or remove the DHCP options. If state is set to absent, then a DHCP options set matched either by id, or tags and options will be removed if possible.

Choices:

  • "absent"

  • "present" ← (default)

tags

aliases: resource_tags

dictionary

A dictionary representing the tags to be applied to the resource.

If the tags parameter is not set then tags will not be modified.

validate_certs

boolean

When set to false, SSL certificates will not be validated for communication with the AWS APIs.

Setting validate_certs=false is strongly discouraged, as an alternative, consider setting aws_ca_bundle instead.

Choices:

  • false

  • true ← (default)

vpc_id

string

VPC ID to associate with the requested DHCP option set.

If no VPC ID is provided, and no matching option set is found then a new DHCP option set is created.

Notes

Note

  • Support for purge_tags was added in release 2.0.0.

  • Caution: Environment variables and configuration files are read from the Ansible ‘host’ context and not the ‘controller’ context. Files may need to be explicitly copied to the ‘host’.

  • The AWS SDK (boto3) that Ansible uses may also read defaults for credentials and other settings, such as the region, from its configuration files in the Ansible ‘host’ context (typically ~/.aws/credentials). See https://boto3.amazonaws.com/v1/documentation/api/latest/guide/credentials.html for more information.

Examples

# Completely overrides the VPC DHCP options associated with VPC vpc-123456 and deletes any existing
# DHCP option set that may have been attached to that VPC.
- amazon.aws.ec2_vpc_dhcp_option:
    domain_name: "foo.example.com"
    region: us-east-1
    dns_servers:
        - 10.0.0.1
        - 10.0.1.1
    ntp_servers:
        - 10.0.0.2
        - 10.0.1.2
    netbios_name_servers:
        - 10.0.0.1
        - 10.0.1.1
    netbios_node_type: 2
    vpc_id: vpc-123456
    delete_old: True
    inherit_existing: False


# Ensure the DHCP option set for the VPC has 10.0.0.4 and 10.0.1.4 as the specified DNS servers, but
# keep any other existing settings. Also, keep the old DHCP option set around.
- amazon.aws.ec2_vpc_dhcp_option:
    region: us-east-1
    dns_servers:
      - "{{groups['dns-primary']}}"
      - "{{groups['dns-secondary']}}"
    vpc_id: vpc-123456
    inherit_existing: True
    delete_old: False


## Create a DHCP option set with 4.4.4.4 and 8.8.8.8 as the specified DNS servers, with tags
## but do not assign to a VPC
- amazon.aws.ec2_vpc_dhcp_option:
    region: us-east-1
    dns_servers:
      - 4.4.4.4
      - 8.8.8.8
    tags:
      Name: google servers
      Environment: Test

## Delete a DHCP options set that matches the tags and options specified
- amazon.aws.ec2_vpc_dhcp_option:
    region: us-east-1
    dns_servers:
      - 4.4.4.4
      - 8.8.8.8
    tags:
      Name: google servers
      Environment: Test
    state: absent

## Associate a DHCP options set with a VPC by ID
- amazon.aws.ec2_vpc_dhcp_option:
    region: us-east-1
    dhcp_options_id: dopt-12345678
    vpc_id: vpc-123456

Return Values

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

Key

Description

changed

boolean

Whether the dhcp options were changed

Returned: always

dhcp_config

dictionary

The boto2-style DHCP options created, associated or found

Returned: when available

domain-name

list / elements=string

The domain name for hosts in the DHCP option sets

Returned: when available

Sample: ["my.example.com"]

domain-name-servers

list / elements=string

The IP addresses of up to four domain name servers, or AmazonProvidedDNS.

Returned: when available

Sample: ["10.0.0.1", "10.0.1.1"]

netbios-name-servers

list / elements=string

The IP addresses of up to four NetBIOS name servers.

Returned: when available

Sample: ["10.0.0.1", "10.0.1.1"]

netbios-node-type

string

The NetBIOS node type (1, 2, 4, or 8).

Returned: when available

Sample: "2"

ntp-servers

list / elements=string

The IP addresses of up to four Network Time Protocol (NTP) servers.

Returned: when available

Sample: ["10.0.0.1", "10.0.1.1"]

dhcp_options

dictionary

The DHCP options created, associated or found

Returned: when available

dhcp_configurations

list / elements=string

The DHCP configuration for the option set

Returned: success

Sample: ["{\"key\": \"ntp-servers\", \"values\": [{\"value\": \"10.0.0.2\" , \"value\": \"10.0.1.2\"}]}", "{\"key\": \"netbios-name-servers\", \"values\": [{value\": \"10.0.0.1\"}, {\"value\": \"10.0.1.1\" }]}"]

dhcp_options_id

string

The aws resource id of the primary DCHP options set created or found

Returned: success

Sample: "dopt-0955331de6a20dd07"

owner_id

string

The ID of the AWS account that owns the DHCP options set.

Returned: success

Sample: "012345678912"

tags

list / elements=string

The tags to be applied to a DHCP options set

Returned: success

Sample: ["{\"Key\": \"CreatedBy\", \"Value\": \"ansible-test\"}", "{\"Key\": \"Collection\", \"Value\": \"amazon.aws\"}"]

dhcp_options_id

string

The aws resource id of the primary DCHP options set created, found or removed

Returned: when available

Authors

  • Joel Thompson (@joelthompson)