To delete a connection

The following delete-connection example disassociates an endpoint from a replication instance.

aws dms delete-connection \
    --endpoint-arn arn:aws:dms:us-east-1:123456789012:endpoint:6GGI6YPWWGAYUVLKIB732KEVWA \
    --replication-instance-arn arn:aws:dms:us-east-1:123456789012:rep:T3OM7OUB5NM2LCVZF7JPGJRNUE

Output:

{
    "Connection": {
        "ReplicationInstanceArn": "arn:aws:dms:us-east-1:123456789012:rep:T3OM7OUB5NM2LCVZF7JPGJRNUE",
        "EndpointArn": "arn:aws:dms:us-east-1:123456789012:endpoint:6GGI6YPWWGAYUVLKIB732KEVWA",
        "Status": "deleting",
        "EndpointIdentifier": "src-database-1",
        "ReplicationInstanceIdentifier": "my-repl-instance"
    }
}

For more information, see https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Endpoints.Creating.html in the AWS Database Migration Service User Guide.