list-instances¶

Description¶

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

Synopsis¶

  list-instances
--service-id <value>
[--cli-input-json | --cli-input-yaml]
[--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>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

Options¶

--service-id (string)

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

--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. 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.

Global Options¶

--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.

--output (string)

The formatting style for command output.

json
text
table
yaml
yaml-stream

--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.

on
off
auto

--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.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

base64
raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input 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 list service instances

The following list-instances example lists service instances.

aws servicediscovery list-instances \
    --service-id srv-qzpwvt2tfqcegapy

Output:

{
    "Instances": [
        {
            "Id": "i-06bdabbae60f65a4e",
            "Attributes": {
                "AWS_INSTANCE_IPV4": "172.2.1.3",
                "AWS_INSTANCE_PORT": "808"
            }
        }
    ]
}

For more information, see Viewing a list of service instances in the AWS Cloud Map Developer Guide.

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 associated 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’s associated with the load balancer.

AWS_EC2_INSTANCE_ID (HTTP namespaces only)

The Amazon EC2 instance ID for the instance. When the AWS_EC2_INSTANCE_ID attribute is specified, then the AWS_INSTANCE_IPV4 attribute contains the primary private IPv4 address.

AWS_INIT_HEALTH_STATUS

If the service configuration includes HealthCheckCustomConfig , you can optionally use AWS_INIT_HEALTH_STATUS to specify the initial status of the custom health check, HEALTHY or UNHEALTHY . If you don’t specify a value for AWS_INIT_HEALTH_STATUS , the initial status is HEALTHY .

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 MaxResults instances match the specified criteria, you can submit another ListInstances request to get the next group of results. Specify the value of NextToken from the previous response in the next request.

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