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Add a note about NTH Queue Process mode #11600

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May 25, 2021
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Add a note about NTH Queue Process mode #11600

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Add a note about NTH Queue Process mode
May 25, 2021
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Update docs/releases/1.21-NOTES.md
olemarkus May 25, 2021
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4 changes: 4 additions & 0 deletions docs/addons.md
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Expand Up @@ -154,6 +154,10 @@ spec:
managedASGTag: "aws-node-termination-handler/managed"
```

##### Queue Processor Mode

{{ kops_feature_table(kops_added_default='1.21') }}

If `enableSQSTerminationDraining` is true Node Termination Handler will operate in Queue Processor mode. In addition to the events mentioned above, Queue Processor mode allows Node Termination Handler to take care of ASG Scale-In, AZ-Rebalance, Unhealthy Instances, EC2 Instance Termination via the API or Console, and more. kOps will provision the necessary infrastructure: an SQS queue, EventBridge rules, and ASG Lifecycle hooks. `managedASGTag` can be configured with Queue Processor mode to distinguish resource ownership between multiple clusters.

The kOps CLI requires additional IAM permissions to manage the requisite EventBridge rules and SQS queue:
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2 changes: 2 additions & 0 deletions docs/releases/1.21-NOTES.md
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Expand Up @@ -30,6 +30,8 @@ See the [warm pool](https://kops.sigs.k8s.io/instance_groups/#warmpool-aws-only)

* Support for AWS launch configurations has been removed in favour of launch templates.

* kOps can now use Node Termination Handler's Queue Processor mode, which offers more functionality than the IMDS Processor mode. See [the addons page](https://kops.sigs.k8s.io/addons/#queue-processor-mode) for more information.

# Breaking changes

* Support for Kubernetes versions 1.13 and 1.14 has been removed.
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