Get a list of instances and their health state

    CLI example:

    .. code-block:: bash

        salt myminion boto_elb.get_instance_health myelb
        salt myminion boto_elb.get_instance_health myelb region=us-east-1 instances="[instance_id,instance_id]"

def get_instance_health(name, region=None, key=None, keyid=None, profile=None, instances=None):
    '''
    Get a list of instances and their health state

    CLI example:

    .. code-block:: bash

        salt myminion boto_elb.get_instance_health myelb
        salt myminion boto_elb.get_instance_health myelb region=us-east-1 instances="[instance_id,instance_id]"
    '''
    conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)

    try:
        instance_states = conn.describe_instance_health(name, instances)
        ret = []
        for _instance in instance_states:
            ret.append({'instance_id': _instance.instance_id,
                        'description': _instance.description,
                        'state': _instance.state,
                        'reason_code': _instance.reason_code
                        })
        return ret
    except boto.exception.BotoServerError as error:
        log.debug(error)
        return []