describe-capacity-reservations¶

Description¶

Describes one or more of your Capacity Reservations. The results describe only the Capacity Reservations in the AWS Region that you’re currently using.

Synopsis¶

  describe-capacity-reservations
[--capacity-reservation-ids <value>]
[--filters <value>]
[--dry-run | --no-dry-run]
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]

Options¶

--capacity-reservation-ids (list)

The ID of the Capacity Reservation.

(string)

Syntax:

"string" "string" ...

--filters (list)

One or more filters.

instance-type - The type of instance for which the Capacity Reservation reserves capacity.

owner-id - The ID of the AWS account that owns the Capacity Reservation.

availability-zone-id - The Availability Zone ID of the Capacity Reservation.

instance-platform - The type of operating system for which the Capacity Reservation reserves capacity.

availability-zone - The Availability Zone ID of the Capacity Reservation.

tenancy - Indicates the tenancy of the Capacity Reservation. A Capacity Reservation can have one of the following tenancy settings:

default - The Capacity Reservation is created on hardware that is shared with other AWS accounts.

dedicated - The Capacity Reservation is created on single-tenant hardware that is dedicated to a single AWS account.

state - The current state of the Capacity Reservation. A Capacity Reservation can be in one of the following states:

active - The Capacity Reservation is active and the capacity is available for your use.

expired - The Capacity Reservation expired automatically at the date and time specified in your request. The reserved capacity is no longer available for your use.

cancelled - The Capacity Reservation was manually cancelled. The reserved capacity is no longer available for your use.

pending - The Capacity Reservation request was successful but the capacity provisioning is still pending.

failed - The Capacity Reservation request has failed. A request might fail due to invalid request parameters, capacity constraints, or instance limit constraints. Failed requests are retained for 60 minutes.

end-date - The date and time at which the Capacity Reservation expires. When a Capacity Reservation expires, the reserved capacity is released and you can no longer launch instances into it. The Capacity Reservation’s state changes to expired when it reaches its end date and time.

end-date-type - Indicates the way in which the Capacity Reservation ends. A Capacity Reservation can have one of the following end types:

unlimited - The Capacity Reservation remains active until you explicitly cancel it.

limited - The Capacity Reservation expires automatically at a specified date and time.

instance-match-criteria - Indicates the type of instance launches that the Capacity Reservation accepts. The options include:

open - The Capacity Reservation accepts all instances that have matching attributes (instance type, platform, and Availability Zone). Instances that have matching attributes launch into the Capacity Reservation automatically without specifying any additional parameters.

targeted - The Capacity Reservation only accepts instances that have matching attributes (instance type, platform, and Availability Zone), and explicitly target the Capacity Reservation. This ensures that only permitted instances can use the reserved capacity.

(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. The filters supported by a describe operation are documented with the describe operation. For example:

DescribeAvailabilityZones

DescribeImages

DescribeInstances

DescribeKeyPairs

DescribeSecurityGroups

DescribeSnapshots

DescribeSubnets

DescribeTags

DescribeVolumes

DescribeVpcs

Name -> (string)

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

Values -> (list)

The filter values. Filter values are case-sensitive.

(string)

Shorthand Syntax:

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

JSON Syntax:

[
  {
    "Name": "string",
    "Values": ["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 is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--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.

Examples¶

Example 1: To describe one or more of your capacity reservations

The following describe-capacity-reservations example displays details about all of your capacity reservations in the current AWS Region.

aws ec2 describe-capacity-reservations

Output:

{
    "CapacityReservations": [
        {
            "CapacityReservationId": "cr-1234abcd56EXAMPLE ",
            "EndDateType": "unlimited",
            "AvailabilityZone": "eu-west-1a",
            "InstanceMatchCriteria": "open",
            "Tags": [],
            "EphemeralStorage": false,
            "CreateDate": "2019-08-16T09:03:18.000Z",
            "AvailableInstanceCount": 1,
            "InstancePlatform": "Linux/UNIX",
            "TotalInstanceCount": 1,
            "State": "active",
            "Tenancy": "default",
            "EbsOptimized": true,
            "InstanceType": "a1.medium"
        },
        {
            "CapacityReservationId": "cr-abcdEXAMPLE9876ef ",
            "EndDateType": "unlimited",
            "AvailabilityZone": "eu-west-1a",
            "InstanceMatchCriteria": "open",
            "Tags": [],
            "EphemeralStorage": false,
            "CreateDate": "2019-08-07T11:34:19.000Z",
            "AvailableInstanceCount": 3,
            "InstancePlatform": "Linux/UNIX",
            "TotalInstanceCount": 3,
            "State": "cancelled",
            "Tenancy": "default",
            "EbsOptimized": true,
            "InstanceType": "m5.large"
        }
    ]
}

Example 2: To describe one or more of your capacity reservations

The following describe-capacity-reservations example displays details about the specified capacity reservation.

aws ec2 describe-capacity-reservations \
    --capacity-reserveration-id cr-1234abcd56EXAMPLE

Output:

{
    "CapacityReservations": [
        {
            "CapacityReservationId": "cr-1234abcd56EXAMPLE",
            "EndDateType": "unlimited",
            "AvailabilityZone": "eu-west-1a",
            "InstanceMatchCriteria": "open",
            "Tags": [],
            "EphemeralStorage": false,
            "CreateDate": "2019-08-16T09:03:18.000Z",
            "AvailableInstanceCount": 1,
            "InstancePlatform": "Linux/UNIX",
            "TotalInstanceCount": 1,
            "State": "active",
            "Tenancy": "default",
            "EbsOptimized": true,
            "InstanceType": "a1.medium"
        }
    ]
}

For more information, see Viewing a Capacity Reservation in the Amazon Elastic Compute Cloud User Guide for Linux Instances.

Output¶

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.

CapacityReservations -> (list)

Information about the Capacity Reservations.

(structure)

Describes a Capacity Reservation.

CapacityReservationId -> (string)

The ID of the Capacity Reservation.

OwnerId -> (string)

The ID of the AWS account that owns the Capacity Reservation.

CapacityReservationArn -> (string)

The Amazon Resource Name (ARN) of the Capacity Reservation.

AvailabilityZoneId -> (string)

The Availability Zone ID of the Capacity Reservation.

InstanceType -> (string)

The type of instance for which the Capacity Reservation reserves capacity.

InstancePlatform -> (string)

The type of operating system for which the Capacity Reservation reserves capacity.

AvailabilityZone -> (string)

The Availability Zone in which the capacity is reserved.

Tenancy -> (string)

Indicates the tenancy of the Capacity Reservation. A Capacity Reservation can have one of the following tenancy settings:

default - The Capacity Reservation is created on hardware that is shared with other AWS accounts.

dedicated - The Capacity Reservation is created on single-tenant hardware that is dedicated to a single AWS account.

TotalInstanceCount -> (integer)

The total number of instances for which the Capacity Reservation reserves capacity.

AvailableInstanceCount -> (integer)

The remaining capacity. Indicates the number of instances that can be launched in the Capacity Reservation.

EbsOptimized -> (boolean)

Indicates whether the Capacity Reservation supports EBS-optimized instances. This optimization provides dedicated throughput to Amazon EBS and an optimized configuration stack to provide optimal I/O performance. This optimization isn’t available with all instance types. Additional usage charges apply when using an EBS- optimized instance.

EphemeralStorage -> (boolean)

Indicates whether the Capacity Reservation supports instances with temporary, block-level storage.

State -> (string)

The current state of the Capacity Reservation. A Capacity Reservation can be in one of the following states:

active - The Capacity Reservation is active and the capacity is available for your use.

expired - The Capacity Reservation expired automatically at the date and time specified in your request. The reserved capacity is no longer available for your use.

cancelled - The Capacity Reservation was manually cancelled. The reserved capacity is no longer available for your use.

pending - The Capacity Reservation request was successful but the capacity provisioning is still pending.

failed - The Capacity Reservation request has failed. A request might fail due to invalid request parameters, capacity constraints, or instance limit constraints. Failed requests are retained for 60 minutes.

EndDate -> (timestamp)

The date and time at which the Capacity Reservation expires. When a Capacity Reservation expires, the reserved capacity is released and you can no longer launch instances into it. The Capacity Reservation’s state changes to expired when it reaches its end date and time.

EndDateType -> (string)

Indicates the way in which the Capacity Reservation ends. A Capacity Reservation can have one of the following end types:

unlimited - The Capacity Reservation remains active until you explicitly cancel it.

limited - The Capacity Reservation expires automatically at a specified date and time.

InstanceMatchCriteria -> (string)

Indicates the type of instance launches that the Capacity Reservation accepts. The options include:

open - The Capacity Reservation accepts all instances that have matching attributes (instance type, platform, and Availability Zone). Instances that have matching attributes launch into the Capacity Reservation automatically without specifying any additional parameters.

targeted - The Capacity Reservation only accepts instances that have matching attributes (instance type, platform, and Availability Zone), and explicitly target the Capacity Reservation. This ensures that only permitted instances can use the reserved capacity.

CreateDate -> (timestamp)

The date and time at which the Capacity Reservation was created.

Tags -> (list)

Any tags assigned to the Capacity Reservation.

(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 255 Unicode characters.

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