Merge pull request kubernetes-sigs#9783 from g-gaston/release-1.6.0-rc.1

🌱 Release v1.6.0-rc.1

Author: k8s-ci-robot

CHANGELOG/v1.6.0-rc.1.md

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+🚨 This is a RELEASE CANDIDATE. Use it only for testing purposes. If you find any bugs, file an [issue](https://github.com/kubernetes-sigs/cluster-api/issues/new).
+
+## Highlights
+
+* MachinePools are now supported in ClusterClass Clusters
+* Metrics, profiling and other diagnostics are now served securely by default
+* Types in `ipam.cluster.x-k8s.io` have graduated to `v1beta1`
+
+## Deprecation Warning
+
+- The API version `v1alpha4` is no longer served in this release.
+  - [Version migration guide](https://main.cluster-api.sigs.k8s.io/developer/providers/version-migration.html)
+  - [GitHub issue #8038](https://github.com/kubernetes-sigs/cluster-api/issues/8038)
+  - [API deprecation details](https://main.cluster-api.sigs.k8s.io/contributing#removal-of-v1alpha3--v1alpha4-apiversions)
+- The API version `v1alpha3` has been completely removed in this release.
+- Flag `--metrics-bind-addr` is [deprecated](https://github.com/kubernetes-sigs/cluster-api/pull/9264) for all controllers
+
+## Changes since v1.6.0-rc.0
+## :chart_with_upwards_trend: Overview
+- 2 new commits merged
+- 1 bug fixed 🐛
+
+## :bug: Bug Fixes
+- ClusterResourceSet: Requeue after 1 minute if ErrClusterLocked got hit (#9788)
+
+## :seedling: Others
+- e2e: Improve output of exec.KubectlApply (#9761)
+
+<details>
+<summary>More details about the release</summary>
+
+:warning: **RELEASE CANDIDATE NOTES** :warning:
+
+## 👌 Kubernetes version support
+
+- Management Cluster: v1.25.x -> v1.28.x
+- Workload Cluster: v1.23.x -> v1.28.x
+
+[More information about version support can be found here](https://cluster-api.sigs.k8s.io/reference/versions.html)
+
+## Changes since v1.5.0
+## :chart_with_upwards_trend: Overview
+- 387 new commits merged
+- 6 breaking changes :warning:
+- 15 feature additions ✨
+- 35 bugs fixed 🐛
+
+## :memo: Proposals
+- Community meeting: Add proposal for karpenter integration feature group (#9571)
+
+## :warning: Breaking Changes
+- API: Remove v1alpha3 API Version (#8997)
+- API: Stop serving v1alpha4 API Versions (#8996)
+- clusterctl: Improve Context handling in clusterctl (#8939)
+- Dependency: Bump to controller-runtime v0.16 (#8999)
+- Metrics/Logging: Implement secure diagnostics (metrics, pprof, log level changes) (#9264)
+- util: Remove go-vcs dependency from releaselink tool (#9288)
+
+## :sparkles: New Features
+- API: Add validation to nested ObjectMeta fields (#8431)
+- CAPD: Add config maps to CAPD RBAC (#9528)
+- CAPD: Add MachinePool Machine implementation to CAPD components (#8842)
+- CAPD: Allow adding custom HA proxy config for CAPD load balancer (#8785)
+- CAPD: Initialize configmap object before getting it (#9529)
+- ClusterClass: Add topology-owned label to MachineHealthChecks. (#9191)
+- ClusterClass: Introduce NamingStrategy and allow generating names using go templates (#9340)
+- ClusterClass: Update API with ClusterClass MachinePool support (#8820)
+- clusterctl: Add RKE2 bootstrap provider to clusterctl (#9720)
+- clusterctl: Block move with annotation (#8690)
+- IPAM: Promote IPAM types to v1beta1 (#9525)
+- MachinePool: Add MachinePool workers support in ClusterClass (#9016)
+- MachineSet: Adjust preflight check to allow kubelet version skew of 3 for clusters running v1.28 and above (#9222)
+- Release: Add automation to create release branch and tags (#9111)
+- Testing/Documentation: V1.28: Prepare quickstart, capd and tests for the new release including kind bump (#9160)
+
+## :bug: Bug Fixes
+- CAPBK: Certificate paths in cloud-init scripts should not use a platform-dependent path separator (#9167)
+- CAPD: Delete container after failed start to work around port allocation issues (#9125)
+- CAPD: Fix DockerMachine panic (#9673)
+- CI: Fix reporting bug in verify-container-image script (#9676)
+- ClusterClass: Fix ClusterClass enqueue for ExtensionConfig (#9133)
+- ClusterClass: Topology: fix namingstrategy webhook to not use uppercase characters for testing the template and align unit test to e2e test (#9425)
+- clusterctl: Fix provider namespace secret not included in clusterctl move (#9694)
+- ClusterResourceSet: Requeue after 1 minute if ErrClusterLocked got hit (#9788)
+- Dependency: Bump golang.org/x/net to v0.13.0 (#9121)
+- Dependency: Bump to docker v24.0.5-0.20230714235725-36e9e796c6fc (#9038)
+- Devtools: Adding metrics container port in tilt-prepare only if it's missing (#9308)
+- Devtools: Allow duplicate objects in Tiltfile (#9302)
+- Devtools: Change tilt debug base image to golang (#9070)
+- Devtools: Fix tilt-prepare leader-elect setting (#9315)
+- Devtools: Pin Plantuml version (#9424)
+- Devtools: Tilt: ensure .tiltbuild/bin directory is created early enough, add tilt troubleshooting guide (#9165)
+- e2e: Drop MachinePools from Dualstack tests (#9477)
+- e2e: Fix autoscaler image repo (#9353)
+- e2e: Test: pin conformance image to a version which includes a fix for the dualstack tests (#9252)
+- KCP: Allow dropping patches KubeadmControlPlane KubeadmConfig (#9698)
+- KCP: Allow to drop useExperimentalRetryJoin field from KubeadmControlPlane.kubeadmConfigSpec (#9170)
+- KCP: Fix KCP Controller reconcile always return error when workload cluster is unreachable (#9342)
+- KCP: Requeue KCP object if ControlPlaneComponentsHealthyCondition is not yet true (#9032)
+- Machine: Retry Node delete when CCT is locked (#9570)
+- MachineDeployment: MD controller: use regular random suffix for MachineSets, ensure max length 63 (#9298)
+- MachineHealthCheck: Fix excessive trace logging in the machine health check controller (#9419)
+- MachinePool: Fix bug where MachinePool Machine ownerRefs weren't updating (#9619)
+- Release: Alphabetically sorting release tool output (#9055)
+- Release: Deduplicating area in pr title in release notes (#9186)
+- Release: Fix go install path for kpromo v4.0.4 (#9336)
+- Release: Generate warning when release notes can not be generated (#9163)
+- Release: Hack/release-notes: ensure relase notes tool can be used for external projects again (#9018)
+- Release: Reverts pull request from cahillsf/improve-release-speed (#9465)
+- Runtime SDK: Set User Agent for test extension correctly (#9748)
+- util: Fix AddAnnotations for unstructured.Unstructured (#9164)
+
+## :seedling: Others
+- API: Add ClusterClass column to Cluster CRD (#9120)
+- API: Add verify-import-restrictions to enforce import restrictions (#9407)
+- API: Enforce import restrictions in all API packages (#9461)
+- API: Ensure we generate all webhook manifests.yaml (#9621)
+- API: Move API v1beta1 webhooks to a separate package (#9047)
+- API: Move docker infrastructure API v1beta1 webhooks to separate package (#9458)
+- API: Move docker infrastructure experimental API v1beta1 webhooks to separate package (#9460)
+- API: Move experimental addons API v1beta1 webhooks to separate package (#9438)
+- API: Move experimental API v1beta1 webhooks to separate package (#9417)
+- API: Move inmemory infrastructure API v1beta1 webhooks to separate package (#9459)
+- API: Move Kubeadm API v1beta1 webhooks to separate package (#9410)
+- API: Remove files and markers for Kubebuilder (#9344)
+- API: Remove reliance on controller-runtime scheme builder (#9045)
+- API: Remove reliance on controller-runtime scheme builder for experimental APIs (#9185)
+- API: Remove reliance on controller-runtime scheme builder for remaining API groups (#9266)
+- API: Remove the dependency on cluster-api/utils from addons API (#9482)
+- API: Test and document controller ownerReferences (#9153)
+- CAPBK: Remove Kubeadm upstream v1beta1 types (#9345)
+- CAPD: Fix multi error handling in RunContainer (#9139)
+- CAPD: Set Condition, if creating external LB failed. (#9697)
+- CI: Add colored-line-number output for golangci-lint action (#9147)
+- CI: Add dependabot for test and hack/tools module (#9041)
+- CI: Add exclude for Kustomize API to dependabot config (#9059)
+- CI: Add licence-scan for pull requests (#9184)
+- CI: Add loggercheck linter and fix findings (#9446)
+- CI: Add verify-govulncheck and verify-vulnerabilities targets and integrate to scan action (#9144)
+- CI: Bump actions/cache from 3.3.1 to 3.3.2 (#9395)
+- CI: Bump actions/checkout from 4.1.0 to 4.1.1 (#9611)
+- CI: Bump actions/github-script from 7.0.0 to 7.0.1 (#9738)
+- CI: Bump actions/setup-go from 4.0.1 to 4.1.0 (#9187)
+- CI: Bump apidiff to v0.7.0 (#9472)
+- CI: Bump golangci-lint to v1.54.1 (#9174)
+- CI: Bump golangci/golangci-lint-action from 3.6.0 to 3.7.0 (#9261)
+- CI: Bump tj-actions/changed-files from 40.1.0 to 40.1.1 (#9714)
+- CI: Bump Trivy to v0.45.1 (#9445)
+- CI: Fix .golangci.yml comments (#9499)
+- CI: Ginkgolinter: forbid focus container (#9320)
+- CI: Github: add edited and reopened as triggers for the GH workflow approval (#9259)
+- CI: Github: add workflow to auto-approve golangci-lint if ok-to-test label is set (#9244)
+- CI: Go.mod reformat to have only two require blocks (#9192)
+- CI: Golangci-lint: replace deprecated local-prefixes setting for gci (#9339)
+- CI: Make GO_ARCH explicit in verify_containter script (#9341)
+- CI: Update actions for 1.5 and make names consistent (#9115)
+- CI: Verify plantuml image generation in CI (#9363)
+- ClusterCacheTracker: Add separate concurrency flag for cluster cache tracker (#9116)
+- ClusterCacheTracker: Ensure Get/List calls are not getting stuck when apiserver is unreachable (#9028)
+- ClusterCacheTracker: Fix accessor deletion on health check failure (#9025)
+- ClusterClass: Add additional test cases for nested variable defaulting (#9728)
+- ClusterClass: Add ownerRefs to BootstrapConfig/InfraMachinePool in classy Clusters (#9389)
+- ClusterClass: Embed ssa.FilterObjectInput into HelperOption to remove duplication (#9512)
+- ClusterClass: Fix some nits in Cluster topology engine tests (#9464)
+- ClusterClass: Improve Cluster variable defaulting/validation errors (#9452)
+- ClusterClass: Improve message for TopologyReconciledCondition (#9400)
+- ClusterClass: Make ClusterClass generated object names consistent (#9254)
+- ClusterClass: Minor fixes for CC+MP implementation (#9318)
+- clusterctl: Check resource blocking clusterctl move during discovery (#9246)
+- clusterctl: Propagate ctx to retryWithExponentialBackoff in clusterctl (#9437)
+- clusterctl: Use goproxy to check version in clusterctl (#9237)
+- clusterctl: Use http get to download files from GitHub in clusterctl (#9236)
+- Dependency: Bump cert-manager to v1.13.2 (#9653)
+- Dependency: Bump cloud.google.com/go/storage from 1.34.1 to 1.35.1 in /hack/tools (#9727)
+- Dependency: Bump controller tools to v1.13.0 (#9221)
+- Dependency: Bump controller-runtime to v0.16.3 (#9592)
+- Dependency: Bump conversion-gen to v0.28 (#9267)
+- Dependency: Bump corefile-migration library to v1.0.21 (#9307)
+- Dependency: Bump docker to v24.0.5 (#9064)
+- Dependency: Bump envtest binaries to 1.28 (#9268)
+- Dependency: Bump github.com/blang/semver to v4 (#9189)
+- Dependency: Bump github.com/docker/distribution (#9544)
+- Dependency: Bump github.com/docker/docker from 24.0.6+incompatible to 24.0.7+incompatible in /test (#9652)
+- Dependency: Bump github.com/emicklei/go-restful/v3 from 3.10.2 to 3.11.0 in /test (#9272)
+- Dependency: Bump github.com/evanphx/json-patch/v5 from 5.6.0 to 5.7.0 (#9397)
+- Dependency: Bump github.com/fatih/color from 1.15.0 to 1.16.0 (#9681)
+- Dependency: Bump github.com/go-logr/logr from 1.2.4 to 1.3.0 (#9644)
+- Dependency: Bump github.com/google/go-cmp from 0.5.9 to 0.6.0 (#9562)
+- Dependency: Bump github.com/onsi/ginkgo/v2 from 2.13.0 to 2.13.1 (#9716)
+- Dependency: Bump github.com/onsi/gomega from 1.29.0 to 1.30.0 (#9717)
+- Dependency: Bump github.com/prometheus/client_golang from 1.16.0 to 1.17.0 (#9517)
+- Dependency: Bump github.com/spf13/cobra from 1.7.0 to 1.8.0 (#9679)
+- Dependency: Bump github.com/spf13/viper from 1.16.0 to 1.17.0 (#9561)
+- Dependency: Bump Go version to v1.20.11 (#9683)
+- Dependency: Bump go-github dependency to version v53 (#8995)
+- Dependency: Bump go.etcd.io/etcd/api/v3 from 3.5.9 to 3.5.10 (#9642)
+- Dependency: Bump go.etcd.io/etcd/client/v3 from 3.5.9 to 3.5.10 (#9646)
+- Dependency: Bump go.opentelemetry.io/* dependencies (#9598)
+- Dependency: Bump golang.org/grpc to v1.59.0 (#9626)
+- Dependency: Bump golang.org/x/net from 0.15.0 to 0.17.0 in /test (#9537)
+- Dependency: Bump golang.org/x/oauth2 from 0.13.0 to 0.14.0 (#9715)
+- Dependency: Bump golang.org/x/text from 0.13.0 to 0.14.0 (#9680)
+- Dependency: Bump golangci-lint to v1.55.2 (#9740)
+- Dependency: Bump gomodules.xyz/jsonpatch/v2 from 2.3.0 to 2.4.0 (#9188)
+- Dependency: Bump google.golang.org/api from 0.149.0 to 0.150.0 in /hack/tools (#9691)
+- Dependency: Bump google.golang.org/grpc from 1.58.2 to 1.58.3 (#9607)
+- Dependency: Bump kpromo to v4.0.4 (#9241)
+- Dependency: Bump opentelemetry to fix CVEs (#9709)
+- Dependency: Bump sigs.k8s.io/yaml from 1.3.0 to 1.4.0 (#9645)
+- Dependency: Bump some dependencies in Makefile (#9549)
+- Dependency: Bump the kubernetes group in /hack/tools with 2 updates (#9420)
+- Dependency: Bump the kubernetes group in /hack/tools with 2 updates (#9574)
+- Dependency: Bump the kubernetes group with 2 updates (#9606)
+- Dependency: Bump the kubernetes group with 4 updates (#9326)
+- Dependency: Bump the kubernetes group with 4 updates (#9455)
+- Dependency: Bump the kubernetes group with 4 updates (#9739)
+- Dependency: Bump Trivy to v0.47.0 (#9671)
+- Dependency: Replace hashicorp/go-multierror with kerrors (#9175)
+- Dependency: Update ensure-kubectl.sh to 1.28 (#9275)
+- Devtools: Add .PHONY for doctoc target (#9148)
+- Devtools: Allow non-provider Deployments in Tilt (#9404)
+- Devtools: Bump CAPI visualizer to v1.2.0 (#9195)
+- Devtools: Drop duplicate pprof and unused linter excludes (#9156)
+- Devtools: Improve Performance dashboard (#9387)
+- Devtools: Make dev cluster networking configurable (#9183)
+- Devtools: Makefile: run doctoc only once (#9182)
+- Devtools: Move tilt-prepare and log-push to tools/internal (#9020)
+- Devtools: Observability: move metrics to config and use sidecar in kube-state-metrics (#9390)
+- Devtools: Refactor docker-push* Makefile targets so users can control with ALL_DOCKER_BUILD which images are pushed (#8586)
+- Devtools: Tiltfile: rename deploy_kustomizations to additional_kustomizations (#9439)
+- e2e: Add back flavor to Waiter interface (#9166)
+- e2e: Add CRS re-reconcile to ownerReference test (#9296)
+- e2e: Add log level for kube components patch to ClusterClass (#9493)
+- e2e: Add MachinePools to Topology Quickstart E2E Templates (#9393)
+- e2e: Add MP timeouts to cluster upgrade tests (#9723)
+- e2e: Add test for ownerReference apiVersion update (#9269)
+- e2e: Add test for scale testing machinery (#9510)
+- e2e: Bump autoscaler to v1.28.0 (#9349)
+- e2e: Drop PR-Informing test tag and job description (#9362)
+- e2e: Dump all pods in e2e test clusters (#9441)
+- e2e: Dump all resource information for self-hosted tests (#9547)
+- e2e: Ensure finalizers are resilient on reconciliation (#9471)
+- e2e: Fail tests if test env version check fails (#9388)
+- e2e: Fix broken e2e test clusterclass (#9506)
+- e2e: Improve labels/annotations in CAPD test ClusterClass (#9469)
+- e2e: Improve logging for self-hosted e2e test (#9637)
+- e2e: Improve output of exec.KubectlApply (#9761)
+- e2e: Refactor e2e ownerRef test utils (#9313)
+- e2e: Test/conformance: add variables to overwrite parralelization of kubetest runs (#9667)
+- e2e: Test/e2e: structure resources by namespace/kind again (#9462)
+- e2e: Use existing value of `SKIP_RESOURCE_CLEANUP` if set in environment (#9152)
+- IPAM: Add age also to v1beta1 IPAM types (#9729)
+- IPAM: Add age column to kubectl output (#9521)
+- IPAM: Enforce IPAM import alias (#9730)
+- KCP: Controlplane: add a test case for syncMachines where the InfraMachine does not exist. (#8992)
+- KCP: Remove disableInPlacePropagation field in KCP controller (#9099)
+- KCP: Remove redundant GetRESTConfig in KCP Management.GetWorkloadCluster (#9448)
+- KCP: Support admin config for Kubeadm v1.29 (#9682)
+- Logging: Change default log level to 2 (#9093)
+- Logging: Fix patch errors not being logged (#9224)
+- Logging: Set controller-runtime logger for clusterctl (#9107)
+- MachinePool: Add MachinePool Builders (#9346)
+- MachinePool: Add util function to get MachinePool by label (#9219)
+- Metrics: Hack/observability: add capi_machine_status_certificatesexpirydate metric (#9084)
+- Metrics: Hack: bump kube-state-metrics and prometheus charts (#9352)
+- Release: Add additional blocks to release note generation (#9247)
+- Release: Add adilGhaffarDev to release-team owner alias (#9718)
+- Release: Add Release Team OWNERS file to docs/release folder (#9294)
+- Release: Avoid cd'ing into test folders when building Docker images (#9744)
+- Release: Bump kubebuilder tools to v0.4.2 (#9665)
+- Release: Bump PR title checker github action to v0.4.1 (#9650)
+- Release: Capitalize area prefix in release notes by default (#9614)
+- Release: Capitalized title in release notes (#9086)
+- Release: Clarify release team vs k8s/k8s-SIGs org membership (#9089)
+- Release: Exclude release trigger PRs from release notes (#9444)
+- Release: Format Community meeting area in release notes (#9648)
+- Release: Format MachineHealthCheck area in release notes (#9500)
+- Release: Give permissions for release notes tool to release team (#9563)
+- Release: Hack: add weekly update script for Slack (#9343)
+- Release: Improve multiple areas PRs with user friendly subs (#9071)
+- Release: Improve release notes formatting (#9337)
+- Release: Improve release speed (#9392)
+- Release: Improve release staging build speed (#9536)
+- Release: Prepare main branch for v1.6 development (#9097)
+- Release: Remove auto-labelling for clusterctl (#8990)
+- Release: Remove extra separator after title in release notes (#9605)
+- Release: Revert "Improve release staging build speed" (#9753)
+- Release: Update instructions checklist to generate release notes (#9443)
+- Release: Update kubebuilder-release-tools to v0.4.0 (#9531)
+- Release: Update release-notes make target + corresponding doc (#9573)
+- Runtime SDK: Improve ClusterClass watch for ExtensionConfigs (#9338)
+- Testing: Add MachinePool test cases (#9474)
+- Testing: Add MachinePool test cases to engine tests (#9373)
+- Testing: Add MachinePool test cases to variables tests (#9372)
+- Testing: Add MachinePools to Runtime SDK and Rollout tests (#9703)
+- Testing: Add MachinePools to topology upgrade test (#9502)
+- Testing: Add test for required properties in clusterclass variables (#9113)
+- Testing: Add unit tests for CC MP blueprint, current_state, & desired_state (#9348)
+- Testing: Add unit tests for reconcile_state, cluster_controller, & conditions (#9380)
+- Testing: Add WaitForMachinePoolToBeUpgraded to self-hosted test (#9540)
+- Testing: Extend test/framework to collect workload cluster nodes (#9416)
+- Testing: Follow-up fixes: Add MachinePools to Runtime SDK and Rollout tests (#9719)
+- Testing: Replacing gomega.Equal with gomega.BeComparableTo (#9015)
+- util: Adjust naming in SortForCreate implementation (#9311)
+- util: Move `internal.labels` to `format` package for use by providers (#9002)
+- util: Refactor SortForCreate to use sort.Slice (#9251)
+- util: Remove previously deprecated code (#9136)
+
+:book: Additionally, there have been 55 contributions to our documentation and book. (#8260, #8500, #8678, #8819, #8988, #9001, #9013, #9014, #9024, #9029, #9080, #9081, #9087, #9112, #9119, #9141, #9146, #9150, #9161, #9173, #9208, #9209, #9213, #9214, #9232, #9270, #9286, #9291, #9305, #9328, #9364, #9386, #9403, #9415, #9429, #9433, #9463, #9487, #9488, #9490, #9511, #9513, #9514, #9527, #9550, #9559, #9565, #9572, #9577, #9590, #9593, #9613, #9635, #9654, #9706) 
+
+</details>
+<br/>
+
+_Thanks to all our contributors!_ 😊