v1.22.0

What's Changed

• add k8s 1.29 to test versions by @cjerad in #986
• Dependabot PR's.
• Fix misleading launch event log message by @der-eismann in #996
• fix: Reverted the removal of the lifecycle hook completion by @stevehipwell in #999
• Temporarily removed uploading windows binaries to release assets by @LikithaVemulapalli in #1005

New Contributors

• @der-eismann made their first contribution in #996

Full Changelog: v1.21.0...v1.22.0

v1.21.0

What's Changed

• Fixed kubernetes version in test file by @LikithaVemulapalli in #853
• enable SQS server-side encryption by @cjerad in #856
• docs: Cleanup installation process for Queue Processor by @yeahservice in #862
• Allow short node name matching by @LikithaVemulapalli in #865
• Add topologySpreadConstraints to Deployment by @sgametrio in #859
• Created the Kubernetes Compatibility Table by @GavinBurris42 in #871
• Replicas by @GavinBurris42 in #875
• use k8s 1.28 by default and update deps by @bwagner5 in #927
• E2E tests bug fix by @GavinBurris42 in #944
• ASG Launch Lifecycle Hook by @GavinBurris42 in #940
• Prometheus metric leak by @GavinBurris42 in #950
• upgrade to Go 1.21 by @cjerad in #951
• fix ECR credentials for Windows release workflow by @cjerad in #956
• update k8s compatibility table by @cjerad in #957
• invoke bash directly on Windows by @cjerad in #973

Deprecations

• The actions_node metric is deprecated due to the potential for high cardinality causing an issue for downstream consumers. A new metric actions has been added to take the place of actions_node without the potential for high cardinality. This release publishes both metrics but actions_node will be removed in a future release.

New Contributors

• @yeahservice made their first contribution in #862
• @sgametrio made their first contribution in #859
• @GavinBurris42 made their first contribution in #871

Full Changelog: v1.20.0...v1.21.0

v1.20.0

What's Changed

🚀 What’s New?

• optionally delete sqs message when node not found by @cjerad in #801
• eks-charts to ECR Public migration by @LikithaVemulapalli in #803
  Going forward, aws-node-termination-handler helm charts will be available here

🐛 Bug Fixes

• Modified Spot ITN message by @LikithaVemulapalli in #762
• generate resource files for k8s 1.25 by @cjerad in #808
• Metric zero by @bwagner5 in #834

📓 Others

• AZ Rebalance Recommendation Document Fix by @LikithaVemulapalli in #755
• Added detailed ASG information in README by @LikithaVemulapalli in #759
• update k8s test versions by @cjerad in #810
• upgrade go to 1.20 by @bwagner5 in #835
• dependency updates in various PRs
• fixes for broken builds and release workflows

New Contributors

• @dependabot made their first contribution in #766

Full Changelog: v1.19.0...v1.20.0

v1.19.0

What's Changed

• Error log fix by @LikithaVemulapalli in #756
• Remove PodSecurityPolicy when Kubernetes version >=1.25 by @cjerad in #758

Full Changelog: v1.18.3...v1.19.0

v1.18.3

What's Changed

• Don't try to uncordon on startup in Queue Processor mode by @johngmyers in #743
• Remove unnecessary configuration in Queue Processor mode by @johngmyers in #745
• Don't skip evicting pods with same name but in different namespace by @johngmyers in #746
• Don't construct an IMDS client when in Queue Processor mode by @johngmyers in #747
• Replaced deprecated config checkASGTagBeforeDraining in end-to-end tests by @snay2 in #753

Full Changelog: v1.18.2...v1.18.3

v1.18.2

What's Changed

• Modified ScheduledChangeRule in cfn-template by @LikithaVemulapalli in #737
• test: use T.Setenv to set env vars in tests by @Juneezee in #739
• Completely ignore Instance Metadata when in SQS Queue mode. by @peteroruba in #735
• Remove experimental designation of scheduled event draining by @johngmyers in #740
• Enable scheduled event draining by default by @johngmyers in #741

New Contributors

• @Juneezee made their first contribution in #739
• @peteroruba made their first contribution in #735
• @johngmyers made their first contribution in #740

Full Changelog: v1.18.1...v1.18.2

v2.0.0-beta

What's Changed

• update release workflow by @cjerad in #716
• refactor test suite by @cjerad in #722
• upgrade to Go 1.19 by @cjerad in #736
• upgrade to aws-sdk-go-v2 by @cjerad in #742
• remove event schema version checks by @cjerad in #748

Full Changelog: v2.0.0-alpha...v2.0.0-beta

v1.18.1

What's Changed

• Upgrade some dependencies by @snay2 in #731

Full Changelog: v1.18.0...v1.18.1

v1.18.0

Improved logging in Queue Processor mode

v1.18.0 introduces the logFormatVersion Helm chart option, to allow you to opt-in to more detailed logs.

The default value is 1, which keeps logging the same way it did in prior releases (<= v1.17.3).

Setting the value to 2 will give you more detail about which AWS event triggered the cordon/drain. Previously, all these events were bucketed under SQS_TERMINATE and it was difficult to tell what was happening.

This option is also available as a command line flag, --log-format-version

What does the new logging look like?

logFormatVersion=2 modifies several Debug, Info, and Warn logs, as well as Kubernetes events emitted by NTH. These changes improve your observability about what NTH is doing when responding to events via SQS. If your monitoring system is configured to look for any of the specific strings in the tables below, you may need to modify your configuration to use the updated strings if you use the new log format version.

Changes to logs when starting up

1. Remove event_type field from the Info log when starting a monitor; replace with monitor_type field, with new values. See Table 1.
2. Remove event_type field from the Warn log when a monitor fails to start; replace with monitor_type field, with new values. See Table 1.

Changes to logs when processing an event

1. New monitor field in the Info log. See Table 1.
2. Potentially change value of kind field in the Info log, if running Queue Processor mode. See Table 2.
3. Potentially change the "reason" field in the k8s event if running Queue Processor mode. See Table 3.

Changes to logs when receiving an SQS message

1. Include the specific event type instead of SQS_TERMINATE in the Debug log if running Queue Processor mode. See Table 2.

Tables of changed values

Table 1: Monitor types

Previous	New
REBALANCE_RECOMMENDATION	REBALANCE_RECOMMENDATION_MONITOR
SCHEDULED_EVENT	SCHEDULED_EVENT_MONITOR
SPOT_ITN	SPOT_ITN_MONITOR
SQS_TERMINATE	SQS_MONITOR

Table 2: Event types

Previous	New
REBALANCE_RECOMMENDATION	REBALANCE_RECOMMENDATION
SCHEDULED_EVENT	SCHEDULED_EVENT
SPOT_ITN	SPOT_ITN
SQS_TERMINATE	REBALANCE_RECOMMENDATION SCHEDULED_EVENT SPOT_ITN STATE_CHANGE ASG_LIFECYCLE

Table 3: Event reasons

Previous reason	New reason
RebalanceRecommendation	RebalanceRecommendation
ScheduledEvent	ScheduledEvent
SpotInterruption	SpotInterruption
SQSTermination	RebalanceRecommendation ScheduledEvent SpotInterruption StateChange ASGLifecycle

Commits with these changes

• feat: emit pod events on drain by @trutx in #703
• chore: add annotations to events in SQS mode by @trutx in #715
• fix: show actual event kinds in Queue mode by @trutx and @cjerad in #725

Other changes

• README: Clarify distinctions between IMDS and QP modes by @snay2 in #695
• Clarify wording about using ASG tags. Fix broken docs link. by @snay2 in #721
• Remove bespoke Prometheus helm chart and use the latest public release instead by @snay2 in #723
• upgrade to Go 1.19 by @cjerad and @snay2 in #726

Full Changelog: v1.17.3...v1.18.0

v2.0.0-alpha

What's Changed

• add v2 scaffolding by @cjerad in #577
• replace kustomize with helm by @cjerad in #587
• Knative webhook by @cjerad in #596
• NTHv2 core functionality by @cjerad in #612
• Dynamically download toolchain and build symlinks by @cjerad in #622
• add workflow to run test suite by @cjerad in #623
• add node label selector to Terminator by @cjerad in #625
• add event action config to Terminator by @cjerad in #628
• add webhook config to Terminator by @cjerad in #641
• add make target explore-test-coverage by @cjerad in #646
• add dev setup guide by @cjerad in #656
• update dev guide and resources by @cjerad in #660
• add 'getting started' section to README.md by @cjerad in #671
• add prepare-for-release.sh script by @cjerad in #691
• add downloaded binaries to PATH by @cjerad in #692
• add build-and-push-images.sh script by @cjerad in #693
• add upload-resources-to-github.com script by @cjerad in #696
• add sync-to-aws-eks-charts.sh script by @cjerad in #697
• add sync-readme-to-ecr-public.sh script by @cjerad in #698
• add release workflow by @cjerad in #699
• update third-party licenses list by @cjerad in #700
• miscellaneous clean up by @cjerad in #702
• 🥑🤖 v2.0.0-alpha release prep by @cjerad in #707
• handle undefined variable in release scripts by @cjerad in #708
• multiple fixes by @cjerad in #709
• update helm crd by @cjerad in #711
• update gh path within downloaded archive by @cjerad in #712
• check that config file exists before move by @cjerad in #713
• set git identity in sync-to-aws-eks-charts.sh by @cjerad in #714

Full Changelog: 0ab461d...v2.0.0-alpha