[ aws . ec2 ]



Describes reservations that are associated with Dedicated Hosts in your account.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

describe-host-reservations 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: HostReservationSet


[--filter <value>]
[--host-reservation-id-set <value>]
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]


--filter (list)

The filters.

  • instance-family - The instance family (for example, m4 ).

  • payment-option - The payment option (NoUpfront | PartialUpfront | AllUpfront ).

  • state - The state of the reservation (payment-pending | payment-failed | active | retired ).

  • tag :<key> - 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 key Owner and the value TeamA , specify tag:Owner for the filter name and TeamA 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.


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.

Name -> (string)

The name of the filter. Filter names are case-sensitive.

Values -> (list)

The filter values. Filter values are case-sensitive.


Shorthand Syntax:

Name=string,Values=string,string ...

JSON Syntax:

    "Name": "string",
    "Values": ["string", ...]

--host-reservation-id-set (list)

The host reservation IDs.



"string" "string" ...

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those 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. This may not be specified along with --cli-input-yaml.

--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 the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken 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. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.


To describe Dedicated Host Reservations in your account

This example describes the Dedicated Host Reservations in your account.


aws ec2 describe-host-reservations


  "HostReservationSet": [
          "Count": 1,
          "End": "2019-01-10T12:14:09Z",
          "HourlyPrice": "1.499",
          "InstanceFamily": "m4",
          "OfferingId": "hro-03f707bf363b6b324",
          "PaymentOption": "NoUpfront",
          "State": "active",
          "HostIdSet": [
          "Start": "2018-01-10T12:14:09Z",
          "HostReservationId": "hr-0d418a3a4ffc669ae",
          "UpfrontPrice": "0.000",
          "Duration": 31536000


HostReservationSet -> (list)

Details about the reservation’s configuration.


Details about the Dedicated Host Reservation and associated Dedicated Hosts.

Count -> (integer)

The number of Dedicated Hosts the reservation is associated with.

CurrencyCode -> (string)

The currency in which the upfrontPrice and hourlyPrice amounts are specified. At this time, the only supported currency is USD .

Duration -> (integer)

The length of the reservation’s term, specified in seconds. Can be 31536000 (1 year) | 94608000 (3 years) .

End -> (timestamp)

The date and time that the reservation ends.

HostIdSet -> (list)

The IDs of the Dedicated Hosts associated with the reservation.


HostReservationId -> (string)

The ID of the reservation that specifies the associated Dedicated Hosts.

HourlyPrice -> (string)

The hourly price of the reservation.

InstanceFamily -> (string)

The instance family of the Dedicated Host Reservation. The instance family on the Dedicated Host must be the same in order for it to benefit from the reservation.

OfferingId -> (string)

The ID of the reservation. This remains the same regardless of which Dedicated Hosts are associated with it.

PaymentOption -> (string)

The payment option selected for this reservation.

Start -> (timestamp)

The date and time that the reservation started.

State -> (string)

The state of the reservation.

UpfrontPrice -> (string)

The upfront price of the reservation.

Tags -> (list)

Any tags assigned to the Dedicated Host Reservation.


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 255 Unicode characters.

NextToken -> (string)

The token to use to retrieve the next page of results. This value is null when there are no more results to return.