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    Server Load Balancer:Create and manage a GWLB instance

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    Server Load Balancer:Create and manage a GWLB instance

    Last Updated:Nov 05, 2024

    A Gateway Load Balancer (GWLB) instance can receive requests from clients and forward requests to backend servers. This topic describes how to create and manage a GWLB instance.

    Prerequisites

    • A virtual private cloud (VPC) is created. For more information, see Create a VPC with an IPv4 CIDR block.

    • The AliyunServiceRoleForGwlb service-linked role is created within your Alibaba Cloud account. The first time you create a GWLB instance, you must create the AliyunServiceRoleForGwlb service-linked role to allow GWLB to access other Alibaba Cloud resources. For more information, see System policies for GWLB.

    Create a GWLB instance

    1. Log on to the GWLB console.

    2. In the top navigation bar, select the region where the GWLB instance is deployed.

    3. On the Instances page, click Create GWLB.

    4. On the Gateway Load Balancer - Alibaba Cloud International Site page, configure the parameters as described in the following table.

      Parameter

      Description

      Region and Zone

      Select the region in which you want to create the GWLB instance.

      VPC

      Select the VPC where you want to deploy the GWLB instance.

      Zone

      Select the zone in which you want to create the GWLB instance. GWLB supports multi-zone deployment. You must specify at least one zone and one subnet. After the GWLB instance is created, the specified zones and subnets cannot be cleared for the GWLB instance.

      IP version

      Select an IP version.

      IPv4: GWLB supports IPv4 traffic access.

      Instance Name

      Enter a name for the GWLB instance.

      Resource Group

      Select a resource group for the GWLB instance.

      Tag

      Add tags for the GWLB instance.

      • Tag Key: Cannot be an empty string. It can be up to 128 characters in length, cannot start with aliyun or acs:, and cannot contain http:// or https://.

      • Tag Value: Can be an empty string. It can be up to 256 characters in length and cannot contain http:// or https://.

      You can add more than one tag for a GWLB instance. For more information about tags, see Manage tags.

      Service-linked Role

      The first time you create a GWLB instance, you must click Create Service-linked Role and create the AliyunServiceRoleForGwlb service-linked role.

      Note

      This parameter is displayed only the first time you create a GWLB instance.

    5. Click Buy Now and complete the payment.

    6. Click Activate Now. On the Instances page, select the region in which the GWLB instance is deployed to view the GWLB instance.

    Release a GWLB instance

    You can release GWLB instances that are not in use to reduce costs. After you release a GWLB instance, you are no longer charged for the GWLB instance.

    Warning

    • After a GWLB instance is released, the configurations and data of the GWLB instance are cleared and cannot be restored.

    • If your GWLB instance is managed by another Alibaba Cloud service, the GWLB instance cannot be released. For example, if your GWLB instance is associated with endpoints, you must delete the endpoint configurations before you can release the GWLB instance.

    1. Log on to the GWLB console.

    2. In the top navigation bar, select the region where the GWLB instance is deployed.

    3. On the GWLB Instances page, find the instance that you want to release and click 更多操作 > Release in the Actions column.

    4. In the Release Instance message, click OK.

    Related operations

    Operation

    Procedure

    Rename a GWLB instance

    1. On the Instances page, find the GWLB instance that you want to manage, and click the instance ID.

    2. On the Instance Details tab, click Edit next to the instance name.

    3. In the dialog box that appears, enter a new name, and click OK.

    Change the GWLB instance zone

    1. On the Instances page, use one of the following methods to edit the instance zone or subnet.

      • Find the instance that you want to manage, and click 更多操作 > Modify Zone/Subnet.

      • Click the instance ID. On the Instance Details tab, click Modify Zone/Subnet in the Zone section.

    2. In the Modify Zone/Subnet dialog box, select or clear zones and vSwitches, and click OK.

    Note

    You can only add zones for a GWLB instance. Specified zones for a GWLB instance cannot be cleared and edited.

    Manage tags

    Each tag is a key-value pair.

    • You can add at most 20 tags to each GWLB instance.

    • The keys of tags that are added to a GWLB instance must be unique.

    Add tags

    You can use tags to classify GWLB instances by category, such as by purpose or owner.

    1. On the Instances page, find the GWLB instance that you want to manage, and move the pointer over the 标签 icon in the Tag column.

      • If no tag is added to the GWLB instance, click Apply.

      • If a tag is added to the GWLB instance, click Edit.

    2. In the Modify Tag dialog box, select or enter keys and values and click OK.

      You can also click the 删除 icon next to a tag to remove the tag.

    Filter by tag

    You can filter GWLB instances by tag.

    • On the Instances page, click Filter by Tag above the instance list.

    • Select a tag key and a tag value from the drop-down list.

      You can click Clear Filter Condition above the instance list to clear the filter conditions.

    Release multiple GWLB instances at a time

    1. On the Instances page, select more than one instance that you want to manage, and click Release.

    2. In the Confirm message, click Release.

    What to do next

    • Configure a listener to forward all IP packets across all ports to corresponding backend server groups via the Geneve protocol. For more information, see Add and manage IP listeners.

    • A GWLB instance must work with GWLB endpoints provided by the PrivateLink service.

    References

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