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Changelog

main / unreleased

v0.20.1

  • [BUGFIX] Improved handling of URL ports in createPrepareDownscaleEndpoints function. The function now correctly preserves the port when replacing the host in the URL. #176

v0.20.0

  • [ENHANCEMENT] Updated dependencies, including: #174
    • github.com/prometheus/client_golang from v1.19.1 to v1.20.4
    • github.com/prometheus/common from v0.55.0 to v0.59.1
    • k8s.io/api from v0.30.3 to v0.31.1
    • k8s.io/apimachinery from v0.30.3 to v0.31.1
    • k8s.io/client-go from v0.30.3 to v0.31.1
    • sigs.k8s.io/controller-runtime from v0.18.5 to v0.19.0

v0.19.1

  • [CHANGE] Renamed grafana.com/rollout-mirror-replicas-from-resource-write-back-status-replicas annotation to grafana.com/rollout-mirror-replicas-from-resource-write-back, because it was too long (over 64 chars). #171

v0.19.0

  • [ENHANCEMENT] Updated dependencies, including: #165
    • github.com/prometheus/client_golang from v1.19.0 to v1.19.1
    • github.com/prometheus/common from v0.53.0 to v0.55.0
    • golang.org/x/sync from v0.7.0 to v0.8.0
    • k8s.io/api from v0.30.0 to v0.30.3
    • k8s.io/apimachinery from v0.30.0 to v0.30.3
    • k8s.io/client-go from v0.30.0 to v0.30.3
    • sigs.k8s.io/controller-runtime from v0.18.1 to v0.18.5
  • [ENHANCEMENT] Update Go to 1.23. #168
  • [ENHANCEMENT] When mirroring replicas of statefulset, rollout-operator can now skip writing back number of replicas to reference resource, by setting grafana.com/rollout-mirror-replicas-from-resource-write-back-status-replicas annotation to false. #169

v0.18.0

  • [FEATURE] Optionally only scale-up a StatefulSet once all of the leader StatefulSet replicas are ready. Enable with grafana.com/rollout-upscale-only-when-leader-ready annotation set to true. #164

v0.17.1

  • [ENHANCEMENT] prepare-downscale admission webhook: undo prepare-shutdown calls if adding the last-downscale annotation fails. #151

v0.17.0

  • [CHANGE] The docker base images are now based off distroless images rather than Alpine. #149
    • The standard base image is now gcr.io/distroless/static-debian12:nonroot.
    • The boringcrypto base image is now gcr.io/distroless/base-nossl-debian12:nonroot (for glibc).
  • [ENHANCEMENT] Include unique IDs of webhook requests in logs for easier debugging. #150
  • [ENHANCEMENT] Include k8s operation username in request debug logs. #152
  • [ENHANCEMENT] rollout-max-unavailable annotation can now be specified as percentage, e.g.: rollout-max-unavailable: 25%. Resulting value is computed as floor(replicas * percentage), but is never less than 1. #153
  • [ENHANCEMENT] Delayed downscale of statefulset can now reduce replicas earlier, if subset of pods at the end of statefulset have already reached their delay. #156
  • [BUGFIX] Fix a mangled error log in controller's delayed downscale code. #154

v0.16.0

  • [ENHANCEMENT] If the POST to prepare-shutdown fails for any replica, attempt to undo the operation by issuing an HTTP DELETE to prepare-shutdown for all target replicas. #146

v0.15.0

  • [CHANGE] Rollout-operator is now released under an Apache License 2.0. #139, #140
  • [ENHANCEMENT] Updated dependencies, including: #144
    • github.com/prometheus/common from v0.49.0 to v0.53.0
    • k8s.io/api from v0.29.2 to v0.30.0
    • k8s.io/apimachinery from v0.29.2 to v0.30.0
    • k8s.io/client-go from v0.29.2 to v0.30.0

v0.14.0

  • [FEATURE] Rollout-operator can now "mirror" replicas of statefulset from any reference resource. status.replicas field of reference resource is kept up-to-date with current number of replicas in target statefulset. #129
  • [FEATURE] Rollout-operator can optionally delay downscale of statefulset when mirroring replicas from reference resource. Delay is coordinated with downscaled pods via new endpoint that pods must implement. #131
  • [ENHANCEMENT] Update Go to 1.22. #133
  • [ENHANCEMENT] Updated dependencies, including: #137
    • github.com/prometheus/client_golang from v1.18.0 to v1.19.0
    • github.com/prometheus/common from v0.45.0 to v0.49.0
    • k8s.io/api from v0.29.0 to v0.29.2
    • k8s.io/apimachinery from v0.29.0 to v0.29.2
    • k8s.io/client-go from v0.29.0 to v0.29.2

v0.13.0

  • [BUGFIX] Consider missing pods as not ready. #127

v0.12.0

  • [ENHANCEMENT] Add metrics for Kubernetes control plane calls. #118 #123

v0.11.0

  • [FEATURE] Coordinate downscaling between zones with a ConfigMap instead of annotation, optionally, via the new zoneTracker for the prepare-downscale admission webhook. #107
  • [ENHANCEMENT] Expose pprof endpoint for profiling. #109
  • [ENHANCEMENT] Change Docker build image to golang:1.21-bookworm and update base image to alpine:3.19. #97
  • [ENHANCEMENT] Add basic tracing support. #101 #114 #115
  • [ENHANCEMENT] Updated dependencies, including: #111
    • github.com/gorilla/mux from v1.8.0 to v1.8.1
    • github.com/prometheus/client_golang from v1.17.0 to v1.18.0
    • golang.org/x/sync from v0.5.0 to v0.6.0
    • k8s.io/api from v0.28.3 to v0.29.0
    • k8s.io/apimachinery from v0.28.3 to v0.29.0
    • k8s.io/client-go from v0.28.3 to v0.29.0

v0.10.1

  • [BUGFIX] Do not allow downscale if the operator failed to check whether there are StatefulSets with non-updated replicas. #105

v0.10.0

  • [ENHANCEMENT] Proceed with prepare-downscale operation even when pods from zone being downscaled are not ready or not up to date. #99
  • [ENHANCEMENT] Expose metrics for incoming HTTP requests. #100

v0.9.0

  • [ENHANCEMENT] Updated dependencies, including: #93
    • github.com/prometheus/client_golang from v1.16.0 to v1.17.0
    • github.com/prometheus/common from v0.44.0 to v0.45.0
    • golang.org/x/sync from v0.3.0 to v0.4.0
    • k8s.io/api from v0.28.1 to v0.28.3
    • k8s.io/apimachinery from v0.28.1 to v0.28.3
    • k8s.io/client-go from v0.28.1 to v0.28.3

v0.8.3

  • [BUGFIX] Do not exit reconciliation early if there are errors while trying to adjust the number of replicas. #92

v0.8.2

  • [BUGFIX] Do not exit reconciliation early if there are errors while trying to adjust the number of replicas. #90

v0.8.1

  • [ENHANCEMENT] Update the prepare-downscale webhook to check that a rollout is not in progress in the rollout-group, else deny. #82

v0.8.0

  • [ENHANCEMENT] Update Go to 1.21. #77
  • [ENHANCEMENT] Updated dependencies, including: #78
    • github.com/k3d-io/k3d/v5 from v5.5.2 to v5.6.0
    • k8s.io/api from v0.27.4 to v0.28.1
    • k8s.io/apimachinery from v0.27.4 to v0.28.1
    • k8s.io/client-go from v0.27.4 to v0.28.1

v0.7.0

  • [ENHANCEMENT] Updated dependencies, including: #70
    • github.com/k3d-io/k3d/v5 from v5.5.1 to v5.5.2
    • github.com/prometheus/client_golang from v1.15.1 to v1.16.0
    • github.com/sirupsen/logrus from v1.9.2 to v1.9.3
    • golang.org/x/sync from v0.2.0 to v0.3.0
    • k8s.io/api from v0.27.2 to v0.27.4
    • k8s.io/apimachinery from v0.27.2 to v0.27.4
    • k8s.io/client-go from v0.27.2 to v0.27.4

v0.6.1

  • [FEATURE] Publish an additional boringcrypto image for linux/amd64,linux/arm64. #71
  • [ENHANCEMENT] Update the intermediate build container for the Docker image to golang:1.20-alpine3.18. #71

v0.6.0

  • [ENHANCEMENT] Update Go to 1.20.4. #55
  • [ENHANCEMENT] Update Docker base image to alpine:3.18. #56
  • [ENHANCEMENT] Add the ability to scale statefulsets up and down based on the number of replicas in a "leader" statefulset. #62
  • [ENHANCEMENT] Updated dependencies, including: #63
    • github.com/k3d-io/k3d/v5 from v5.4.9 to v5.5.1
    • github.com/prometheus/client_golang from v1.15.0 to v1.15.1
    • github.com/prometheus/common from v0.42.0 to v0.44.0
    • github.com/sirupsen/logrus from v1.9.0 to v1.9.2
    • github.com/stretchr/testify from v1.8.2 to v1.8.4
    • go.uber.org/atomic from v1.10.0 to v1.11.0
    • golang.org/x/sync from v0.1.0 to v0.2.0
    • k8s.io/api from v0.26.2 to v0.27.2
    • k8s.io/apimachinery from v0.26.2 to v0.27.2
    • k8s.io/client-go from v0.26.2 to v0.27.2

v0.5.0

  • [ENHANCEMENT] Add an /admission/prepare-downscale mutating admission webhook that prepares pods for shutdown before downscaling. #47 #52
  • [ENHANCEMENT] Update Go to 1.20.3. #48
  • [ENHANCEMENT] Updated dependencies, including: #49
    • github.com/k3d-io/k3d/v5 from v5.4.7 to v5.4.9
    • github.com/prometheus/client_golang from v1.14.0 to v1.15.0
    • github.com/prometheus/common from v0.39.0 to v0.42.0
    • github.com/stretchr/testify from v1.8.1 to v1.8.2
    • go.uber.org/atomic from v1.9.0 to v1.10.0
    • k8s.io/api from v0.26.1 to v0.26.2
    • k8s.io/apimachinery from v0.26.1 to v0.26.2
    • k8s.io/client-go from v0.26.1 to v0.26.2

v0.4.0

  • [ENHANCEMENT] Update Go to 1.20.1. #39
  • [ENHANCEMENT] Updated dependencies, including: #39 #42
    • github.com/k3d-io/k3d/v5 from v5.4.6 to v5.4.7
    • github.com/prometheus/client_golang from v1.13.0 to v1.14.0
    • github.com/prometheus/common from v0.37.0 to v0.39.0
    • github.com/stretchr/testify from v1.8.0 to v1.8.1
    • k8s.io/api from v0.25.3 to v0.26.1
    • k8s.io/apimachinery from v0.25.3 to v0.26.1
    • k8s.io/client-go from v0.25.3 to v0.26.1
    • github.com/containerd/containerd from v1.6.15 to v1.6.18 for CVE-2023-25153 and CVE-2023-25173
    • golang.org/x/net from v0.5.0 to v0.8.0 for CVE-2022-41723
  • [ENHANCEMENT] Update Docker base image to alpine:3.17. #40
  • [ENHANCEMENT] The image published is now a linux/amd64,linux/arm64 multi-platform image. #40

v0.3.0

  • [ENHANCEMENT] Update Go to 1.19.4. #29
  • [ENHANCEMENT] Added -reconcile.interval option to configure the minimum reconciliation interval. #30
  • [ENHANCEMENT] Update dependencies to address CVEs, including: #34
    • github.com/containerd/containerd from v1.6.8 to v1.6.15 for CVE-2022-23471
    • golang.org/x/net from v0.1.0 to v0.5.0 for CVE-2022-41717
  • [FEATURE] ValidatingAdmissionWebhook implementation to prevent downscales on certain resources. #25

v0.2.0

  • [ENHANCEMENT] Update Docker base image to alpine:3.16. #23
  • [ENHANCEMENT] Update the minimum go version to 1.18. #23
  • [ENHANCEMENT] Update dependencies to address CVEs, including: #23
    • github.com/gogo/protobuf from v1.3.1 to v1.3.2
    • github.com/prometheus/client_golang from v1.11.0 to v1.13.0
    • golang.org/x/crypto from v0.0.0-20200622213623-75b288015ac9 to v0.1.0
    • k8s.io/client-go from v0.18.17 to v0.25.3

v0.1.2

  • [ENHANCEMENT] Improve log messages about not read statefulset. #19
  • [BUGFIX] Detect as not-ready pods which are terminating but their readiness probe hasn't failed yet. #20

v0.1.1

  • [BUGFIX] Fix metrics deletion on decommissioned rollout group. #11

v0.1.0

  • [FEATURE] Coordinate rollout of pods belonging to multiple StatefulSets identified by the same rollout-group label. #1 #5 #6
  • [FEATURE] Expose Prometheus metrics at /metrics. #4
  • [FEATURE] Add readiness probe at /ready. #6