describe-placement-groups¶

Description¶

Describes the specified placement groups or all of your placement groups. For more information, see Placement groups in the Amazon EC2 User Guide .

Synopsis¶

  describe-placement-groups
[--filters <value>]
[--dry-run | --no-dry-run]
[--group-names <value>]
[--group-ids <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--filters (list)

The filters.

group-name - The name of the placement group.

group-arn - The Amazon Resource Name (ARN) of the placement group.

spread-level - The spread level for the placement group (host | rack ).

state - The state of the placement group (pending | available | deleting | deleted ).

strategy - The strategy of the placement group (cluster | spread | partition ).

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 that have 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", ...]
  }
  ...
]

--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 .

--group-names (list)

The names of the placement groups.

Default: Describes all your placement groups, or only those otherwise specified.

(string)

Syntax:

"string" "string" ...

--group-ids (list)

The IDs of the placement groups.

(string)

Syntax:

"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.

--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. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Note

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 .

To describe your placement groups

This example command describes all of your placement groups.

Command:

aws ec2 describe-placement-groups

Output:

{
    "PlacementGroups": [
        {
            "GroupName": "my-cluster",
            "State": "available",
            "Strategy": "cluster"
        },
        ...
    ]
}

Output¶

PlacementGroups -> (list)

Information about the placement groups.

(structure)

Describes a placement group.

GroupName -> (string)

The name of the placement group.

State -> (string)

The state of the placement group.

Strategy -> (string)

The placement strategy.

PartitionCount -> (integer)

The number of partitions. Valid only if strategy is set to partition .

GroupId -> (string)

The ID of the placement group.

Tags -> (list)

Any tags applied to the placement group.

(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.

GroupArn -> (string)

The Amazon Resource Name (ARN) of the placement group.

SpreadLevel -> (string)

The spread level for the placement group. Only Outpost placement groups can be spread across hosts.

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