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Server Load Balancer:Manage ALB instances

Last Updated:Dec 15, 2023

This topic describes how to release or rename an Application Load Balancer (ALB) instance, how to configure the configuration read-only mode, and how to configure deletion protection.

Change the name of an ALB instance

You can change the names of ALB instances to better search for the instances.

  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.

  3. On the Instances page, find the ALB instance that you want to manage, move the pointer over the instance name, and then click the 修改实例名 icon.

  4. In the dialog box that appears, change the instance name and click OK.

Manage tags

You can use tags to classify ALB instances by purpose or owner.

Each tag is a key-value pair. Before you add tags to an ALB instance, take note of the following limits:

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

  • The keys of tags that are added to an ALB instance must be unique.

Add a tag

  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.

  3. On the Instances page, find the ALB instance that you want to manage, move the pointer over the image.png icon in the Tag column.

    • If no tag is added to the ALB instance, click Edit.

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

  4. In the Configure Tags dialog box, select or enter a key and a value. Then, click OK.

    You can also click the image.png icon next to a tag to remove the tag from the ALB instance.

Filter by tag

You can filter ALB 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.

Enable or disable deletion protection

You can enable deletion protection to prevent ALB instances from being released accidentally.

Note

To release an ALB instance, you must first disable deletion protection.

  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.

  3. On the Instances page, find the ALB instance that you want to manage and click its ID.

  4. On the Instance Details tab, find the Instance Information section and click Enable Deletion Protection or Disable Deletion Protection.

Enable or disable the configuration read-only mode

You can enable the configuration read-only mode to prevent an ALB instance from being modified accidentally.

Note

To modify the configuration of an ALB instance, you must disable the configuration read-only mode.

  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.

  3. On the Instances page, find the ALB instance that you want to manage and click its ID.

  4. On the Instance Details tab, find the Instance Information section and click Enable Configuration Read-only Mode or Disable Configuration Read-only Mode.

Release an ALB instance

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

You cannot release ALB instances for which deletion protection is enabled. Before you can release the ALB instances, you must disable deletion protection on the details page.

Warning
  • If a custom domain name is mapped to the domain name or IP address of an ALB instance and you want to release the ALB instance, you must map the custom domain name to another ALB instance to prevent service interruptions.

  • After an ALB instance is released, the configurations and data of the ALB instance are deleted and cannot be restored.

  1. Log on to the ALB console.
  2. In the top navigation bar, select the region where the ALB instance is deployed.

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

  4. In the Release Instance message, click OK.