name : register-instance.rst **Example 1: To register a service instance using service ID** The following ``register-instance`` example registers a service instance. :: aws servicediscovery register-instance \ --service-id srv-p5zdwlg5uvvzjita \ --instance-id myservice-53 \ --attributes=AWS_INSTANCE_IPV4=172.2.1.3,AWS_INSTANCE_PORT=808 Output:: { "OperationId": "4yejorelbukcjzpnr6tlmrghsjwpngf4-k95yg2u7" } To confirm that the operation succeeded, you can run ``get-operation``. For more information, see `get-operation <https://docs.aws.amazon.com/cli/latest/reference/servicediscovery/get-operation.html>`__ . For more information about registering an instance, see `Registering a resource as an AWS Cloud Map service instance <https://docs.aws.amazon.com/cloud-map/latest/dg/registering-instances.html>`__ in the *AWS Cloud Map Developer Guide*. **Example 2: To register a service instance using service ARN** The following ``register-instance`` example registers a service instance using a service ARN. Specifying the ARN is required when registering instances in services that are shared with your account. :: aws servicediscovery register-instance \ --service-id arn:aws:servicediscovery:us-west-2:123456789012:service/srv-p5zdwlg5uvvzjita \ --instance-id web-server-01 \ --attributes=AWS_INSTANCE_IPV4=203.0.113.15,AWS_INSTANCE_PORT=80 Output:: { "OperationId": "gv4g5meo7ndmkqjrhpn39wk42xmpl" } For more information about cross-account namespace sharing, see `Shared AWS Cloud Map namespaces <https://docs.aws.amazon.com/cloud-map/latest/dg/sharing-namespaces.html>`__ in the *AWS Cloud Map Developer Guide*.