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[ aws . servicediscovery ]

list-instances

Description

Lists summary information about the instances that you registered by using a specified service.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

list-instances 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: Instances

Synopsis

  list-instances
--service-id <value>
[--cli-input-json <value>]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]

Options

--service-id (string)

The ID of the service that you want to list instances for.

--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.

--starting-token (string)

A token to specify where to start paginating. This is the next-token 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 next-token is provided in the command's output. To resume pagination, provide the next-token value in the starting-token argument of a subsequent command. Do not use the next-token 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.

See 'aws help' for descriptions of global parameters.

Output

Instances -> (list)

Summary information about the instances that are associated with the specified service.

(structure)

A complex type that contains information about the instances that you registered by using a specified service.

Id -> (string)

The ID for an instance that you created by using a specified service.

Attributes -> (map)

A string map that contains the following information:

  • The attributes that are associate with the instance.
  • For each attribute, the applicable value.

Supported attribute keys include the following:

  • AWS_ALIAS_DNS_NAME : For an alias record that routes traffic to an Elastic Load Balancing load balancer, the DNS name that is associated with the load balancer.
  • AWS_INSTANCE_CNAME : For a CNAME record, the domain name that Route 53 returns in response to DNS queries, for example, example.com .
  • AWS_INSTANCE_IPV4 : For an A record, the IPv4 address that Route 53 returns in response to DNS queries, for example, 192.0.2.44 .
  • AWS_INSTANCE_IPV6 : For an AAAA record, the IPv6 address that Route 53 returns in response to DNS queries, for example, 2001:0db8:85a3:0000:0000:abcd:0001:2345 .
  • AWS_INSTANCE_PORT : For an SRV record, the value that Route 53 returns for the port. In addition, if the service includes HealthCheckConfig , the port on the endpoint that Route 53 sends requests to.

key -> (string)

value -> (string)

NextToken -> (string)

If more than max-results instances match the specified criteria, you can submit another list-instances request to get the next group of results. Specify the value of next-token from the previous response in the next request.