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Describes your DHCP option sets. The default is to describe all your DHCP option sets. Alternatively, you can specify specific DHCP option set IDs or filter the results to include only the DHCP option sets that match specific criteria.
For more information, see DHCP option sets in the Amazon VPC User Guide .
See also: AWS API Documentation
describe-dhcp-options
is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate
argument.
When using --output text
and the --query
argument on a paginated response, the --query
argument must extract data from the results of the following query expressions: DhcpOptions
describe-dhcp-options
[--dhcp-options-ids <value>]
[--dry-run | --no-dry-run]
[--filters <value>]
[--cli-input-json <value>]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
--dhcp-options-ids
(list)
The IDs of DHCP option sets.
(string)
Syntax:
"string" "string" ...
--dry-run
| --no-dry-run
(boolean)
Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response isDryRunOperation
. Otherwise, it isUnauthorizedOperation
.
--filters
(list)
The filters.
dhcp-options-id
- The ID of a DHCP options set.key
- The key for one of the options (for example,domain-name
).value
- The value for one of the options.owner-id
- The ID of the Amazon Web Services account that owns the DHCP options set.tag
- The key/value combination of a tag assigned to the resource. Use the tag key in the filter name and the tag value as the filter value. For example, to find all resources that have a tag with the keyOwner
and the valueTeamA
, specifytag:Owner
for the filter name andTeamA
for the filter value.tag-key
- The key of a tag assigned to the resource. Use this filter to find all resources assigned a tag with a specific key, regardless of the tag value.(structure)
A filter name and value pair that is used to return a more specific list of results from a describe operation. Filters can be used to match a set of resources by specific criteria, such as tags, attributes, or IDs.
If you specify multiple filters, the filters are joined with an
AND
, and the request returns only results that match all of the specified filters.Name -> (string)
The name of the filter. Filter names are case-sensitive.Values -> (list)
The filter values. Filter values are case-sensitive. If you specify multiple values for a filter, the values are joined with an
OR
, and the request returns all results that match any of the specified values.(string)
Shorthand Syntax:
Name=string,Values=string,string ...
JSON Syntax:
[
{
"Name": "string",
"Values": ["string", ...]
}
...
]
--cli-input-json
(string)
Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton
. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.
--starting-token
(string)
A token to specify where to start paginating. This is the
NextToken
from a previously truncated response.For usage examples, see Pagination in the AWS Command Line Interface User Guide .
--page-size
(integer)
The size of each page to get in the AWS service call. This does not affect the number of items returned in the command's output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.
For usage examples, see Pagination in the AWS Command Line Interface User Guide .
--max-items
(integer)
The total number of items to return in the command's output. If the total number of items available is more than the value specified, a
NextToken
is provided in the command's output. To resume pagination, provide theNextToken
value in thestarting-token
argument of a subsequent command. Do not use theNextToken
response element directly outside of the AWS CLI.For usage examples, see Pagination in the AWS Command Line Interface User Guide .
--generate-cli-skeleton
(string)
Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input
, prints a sample input JSON that can be used as an argument for --cli-input-json
. If provided with the value output
, it validates the command inputs and returns a sample output JSON for that command.
--debug
(boolean)
Turn on debug logging.
--endpoint-url
(string)
Override command's default URL with the given URL.
--no-verify-ssl
(boolean)
By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.
--no-paginate
(boolean)
Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.
--output
(string)
The formatting style for command output.
--query
(string)
A JMESPath query to use in filtering the response data.
--profile
(string)
Use a specific profile from your credential file.
--region
(string)
The region to use. Overrides config/env settings.
--version
(string)
Display the version of this tool.
--color
(string)
Turn on/off color output.
--no-sign-request
(boolean)
Do not sign requests. Credentials will not be loaded if this argument is provided.
--ca-bundle
(string)
The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.
--cli-read-timeout
(int)
The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.
--cli-connect-timeout
(int)
The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.
To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.
Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal's quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .
Example 1: To describe your DHCP options
The following describe-dhcp-options
example retrieves details about your DHCP options.
aws ec2 describe-dhcp-options
Output:
{
"DhcpOptions": [
{
"DhcpConfigurations": [
{
"Key": "domain-name",
"Values": [
{
"Value": "us-east-2.compute.internal"
}
]
},
{
"Key": "domain-name-servers",
"Values": [
{
"Value": "AmazonProvidedDNS"
}
]
}
],
"DhcpOptionsId": "dopt-19edf471",
"OwnerId": "111122223333"
},
{
"DhcpConfigurations": [
{
"Key": "domain-name",
"Values": [
{
"Value": "us-east-2.compute.internal"
}
]
},
{
"Key": "domain-name-servers",
"Values": [
{
"Value": "AmazonProvidedDNS"
}
]
}
],
"DhcpOptionsId": "dopt-fEXAMPLE",
"OwnerId": "111122223333"
}
]
}
For more information, see Working with DHCP Option Sets in the AWS VPC User Guide.
Example 2: To describe your DHCP options and filter the output
The following describe-dhcp-options
example describes your DHCP options and uses a filter to return only DHCP options that have example.com
for the domain name server. The example uses the --query
parameter to display only the configuration information and ID in the output.
aws ec2 describe-dhcp-options \
--filters Name=key,Values=domain-name-servers Name=value,Values=example.com \
--query "DhcpOptions[*].[DhcpConfigurations,DhcpOptionsId]"
Output:
[
[
[
{
"Key": "domain-name",
"Values": [
{
"Value": "example.com"
}
]
},
{
"Key": "domain-name-servers",
"Values": [
{
"Value": "172.16.16.16"
}
]
}
],
"dopt-001122334455667ab"
]
]
For more information, see Working with DHCP Option Sets in the AWS VPC User Guide.
NextToken -> (string)
The token to include in another request to get the next page of items. This value isnull
when there are no more items to return.
DhcpOptions -> (list)
Information about the DHCP options sets.
(structure)
The set of DHCP options.
OwnerId -> (string)
The ID of the Amazon Web Services account that owns the DHCP options set.Tags -> (list)
Any tags assigned to the DHCP options set.
(structure)
Describes a tag.
Key -> (string)
The key of the tag.
Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with
aws:
.Value -> (string)
The value of the tag.
Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.
DhcpOptionsId -> (string)
The ID of the set of DHCP options.DhcpConfigurations -> (list)
The DHCP options in the set.
(structure)
Describes a DHCP configuration option.
Key -> (string)
The name of a DHCP option.Values -> (list)
The values for the DHCP option.
(structure)
Describes a value for a resource attribute that is a String.
Value -> (string)
The attribute value. The value is case-sensitive.