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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

1.2.3 - 2024-12-13

Fixed

  • Consider PVs with ClaimRef without apiVersion and kind set to also refer to PVCs.

1.2.2 - 2024-10-16

Changed

  • Filter Pod objects before storing in cache. This lowers memory usage of the HA Controller Pods.

1.2.1 - 2024-03-28

Fixed

  • Fixed detection of Persistent Volume Claims when deciding to fail over Pods.

1.2.0 - 2024-01-05

Added

  • Option to assume connection names refer to a Pod instead of a Node.

1.1.4 - 2023-05-22

Changed

  • Wait for initial cache sync before starting the server.

1.1.3 - 2023-03-01

Changed

  • Ignore non-running Pods during fail-over events.

1.1.2 - 2023-02-20

Changed

  • Build with go 1.19
  • Bumped dependencies

1.1.1 - 2022-09-20

Fixed

  • No longer attempt to parse numbers from drbdsetup status that are not relevant. This prevents issue when said numbers are outside the expected range.

1.1.0 - 2022-08-08

Added

  • Exempt Pods that are attached to other types of storage by default, unless the volumes are known to be safe (such as ConfigMap, DownwardAPI, Secret, and other readonly volumes).

Fixed

  • Fixed a bug that meant the manual Pod exemption from fail over via annotations would be ignored.

1.0.1 - 2022-07-25

Changed

  • Fixed an issue with generated events that would lead to the controller to panic because of a nil interface.
  • Immediately delete volume attachment if node is not ready.
  • Fixed a concurrent map write when failing over multiple resources at once.

1.0.0 - 2022-07-21

Breaking

  • Complete rewrite to work as a node agent instead of relying on LINSTOR. The working principle remains the same, but fail-over is no longer (directly) dependent on uninterrupted LINSTOR communications.

Added

  • Force demotion of DRBD resources that are suspended in IO and have pods that should terminate. This enables a node to automatically recover from a stuck situation should a network interruption cause DRBD to suspend.
  • Add a custom Taint to nodes that have volumes without quorum, preventing replacement pods being scheduled while the storage layer is interrupted.

Changed

  • Force deletion of Pods if running Node appears not ready (i.e. it cannot confirm deletion of the Pod).
  • Query Kubernetes API about available eviction methods instead of falling back to worse methods on errors.

0.3.0 - 2022-02-03

Added

  • Include linstor-wait-until in docker image. It is used to wait for the LINSTOR API to get ready on pod initialization.

0.2.0 - 2021-08-31

Added

  • Build for arm64. #9

Changed

  • Update golang dependencies to kubernetes 1.22.
  • Use gcr.io/distroless/static base image and run as non-root user.

0.1.3 - 2021-01-14

Added

  • This changelog

Fixed

  • Instruct Kubernetes to send bookmark events for watches. This ensures restarted watches start from a recent enough resource version. #6
  • Fixes the resource filter applied to PVC and VA watches. A bug introduced in 0.1.2 caused the HA Controller to filter all resources (Pods, PVCs, VolumeAttachments) based on filters for Pods.

0.1.2 - 2021-01-12

Added

  • --leader-election-resource-name option added. Used to set the name of the lease resource #1

Fixed

  • Kubernetes Watches are now re-tried instead of crashing the whole application in case of timeouts #5

0.1.1 - 2020-12-16

Fixed

  • Fixed a crash caused by watching PersistentVolumeClaims instead VolumeAttachments

0.1.0 - 2020-12-15

Added

  • Initial implementation of HA Controller (watching Kubernetes and LINSTOR events, deleting Pods and VolumeAttachments)
  • Deployment example
  • README with motivating example