def add_set_backend_servers()

in src/ansible_collections/alibaba/apsarastack/plugins/modules/ali_slb_server.py [0:0]

• 35 lines of code
• 4 McCabe index (conditional complexity)

def add_set_backend_servers(module, slb, load_balancer_id, backend_servers):
    """
    Add and/or Set backend servers to an slb

    :param module: Ansible module object
    :param slb: authenticated slb connection object
    :param load_balancer_id: load balancer id to add/set backend servers to
    :param backend_servers: backend severs information to add/set
    :return: returns changed state, current added backend servers and custom message.
    """

    changed = False
    server_id_param = 'server_id'
    backend_servers_to_set = []
    backend_servers_to_add = []
    result = []
    current_backend_servers = []
    changed_after_add = False
    changed_after_set = False

    try:

        load_balancer_info = slb.describe_load_balancer_attribute(load_balancer_id=load_balancer_id)

        # Verifying if server load balancer Object is present
        if load_balancer_info:
            existing_backend_servers = str(load_balancer_info.backend_servers['backend_server'])

            # Segregating existing backend servers from new backend servers from the provided backend servers
            for backend_server in backend_servers:

                backend_server_string = backend_server[server_id_param] + '\''
                if backend_server_string in existing_backend_servers:
                    backend_servers_to_set.append(backend_server)
                else:
                    backend_servers_to_add.append(backend_server)

                    # Adding new backend servers if provided
            if len(backend_servers_to_add) > 0:
                current_backend_servers.extend(slb.add_backend_servers(load_balancer_id=load_balancer_id, backend_servers=backend_servers_to_add))
                changed = True
                # Setting exisiting backend servers if provided
            if len(backend_servers_to_set) > 0:
                backen_servers = slb.set_backend_servers(load_balancer_id=load_balancer_id, backend_servers=backend_servers_to_set)
                changed = True
                # If backend server result after set action is available then clearing actual list
                # and adding new result to it.
                if len(backen_servers) > 0:
                    # Below operation clears list using slice operation
                    current_backend_servers[:] = []
                    current_backend_servers.extend(backen_servers)

            if changed_after_add or changed_after_set:
                changed = True

        else:
            module.fail_json(msg="Could not find provided load balancer instance")

    except SLBResponseError as ex:
        module.fail_json(msg='Unable to add backend servers, error: {0}'.format(ex))

    return changed, current_backend_servers