v0.21.0

Highlights

• Bump to Kubernetes v1.33 libraries
• Improvements for priority queue (#2374)
• envtest now has an option to download envtest binaries (can be used to replace setup-envtest depending on use case)
• Metric improvements: native histograms, all Go runtime metrics are enabled now
• Various bug fixes
• New reviewers: @troy0820, @JoelSpeed!!

⚠️ Breaking Changes

• Bump to k8s.io/* v0.33.0 and Go 1.24 (#3104 #3142 #3161 #3204 #3215)
• config: Stop enabling client-side ratelimiter by default (#3119)
  • Previous behavior can be preserved by setting QPS 20 and Burst 30 on the rest.Config
• controller: NewUnmanaged/NewTypedUnmanaged: Stop requiring a manager (#3141)
• reconcile: Deprecate Result.Requeue (#3107)

✨ New Features

• controller: priority queue:
  • Add debug logging for the state of the priority queue (#3075)
  • Add priority label to queue depth metric (#3156)
  • Leverage IsInInitialList (#3162)
  • Remove redundant WithLowPriorityWhenUnchanged in builder (#3168)
  • Retain the priority after Reconcile (#3167)
  • Set priority automatically in handlers (#3111 #3152 #3160 #3174)
• envtest: Add Environment.KubeConfig field (#2278)
• envtest: Add option to download envtest binaries (#3135 #3137)
• events: Add IsInInitialList to TypedCreateEvent (#3162)
• log/zap: Enable panic log level (#3186)
• logging: Adopt WarningHandlerWithContext (#3176)
• logging: Improve logging by adopting contextual logging (#3149)
• metrics: Adopt native histograms (#3165)
• metrics: Expose all Go runtime metrics (#3070)

🐛 Bug Fixes

• apiutil: restmapper: Respect preferred version (#3151)
• builder: webhook: Fix custom path for webhook conflicts (#3102)
• cache: Clone maps to prevent data races when concurrently creating caches using the same options (#3078)
• cache: Stop accumulating lists in multi-namespace cache implementation (#3195)
• cache: List out of global cache when present and necessary (#3126)
• client: Return error if pagination is used with the cached client (#3134)
• controller: Support WaitForSync in TypedSyncingSource (#3084)
• controller: priority queue: Fix behavior of rate limit option in priorityqueue.AddWithOpts (#3103)
• controller: priority queue: Yet another queue_depth metric fix (#3085)
• controllerutil: CreateOrUpdate: Avoid panic when the MutateFn is nil (#2828)
• envtest: Fix nil pointer exception in Stop() (#3153)
• fake client: Fix data races when writing to the scheme (#3143)
• fake client: Use k8s.io/apimachinery/pkg/util/json to unmarshal in fake client (#3208)
• log/zap: Fix verbose info lost on KubeAwareEncoder.Clone (#3209)
• logging: controller: Use fmt.Stringer from custom source for logging (if available) (#3068)
• webhook: MultiMutatingHandler/MultiValidatingHandler: return warnings on webhook response (#3223)

🌱 Others

• Add troy0820 to reviewers (#3099)
• Add JoelSpeed to reviewers (#3097)
• client: Validate that unstructured objects don't require scheme registration (#3138)
• controller: Mention the SkipNameValidation option in the name validation error (#3170)
• docs: Clarify that controller-runtime is not a kubebuilder subproject (#3185)
• envtest: Export envtest.ReadCRDFiles (#3129)
• golangci-lint: Bump golangci-lint to v1.63.4 (#3076)
• golangci-lint: Bump golangci-lint to v2.1.6 (#3187)
• manager: Fix race in unit test (#3150)
• setup-envtest: Add RELEASE_TAG to show binary version with version command (#3166)
• setup-envtest: Fix Godoc for version.Version (#3177)
• tests: Fix: make test fails with make: *** [Makefile:73: test] Error 1 (#3125)

📖 Additionally, there have been 4 contributions to our documentation. (#3116, #3118, #3169, #3181, #3193, #3225)

Dependencies

Added

• github.com/klauspost/compress: v1.18.0
• github.com/kylelemons/godebug: v1.1.0
• github.com/planetscale/vtprotobuf: 0393e58
• go.opentelemetry.io/auto/sdk: v1.1.0
• gopkg.in/go-jose/go-jose.v2: v2.6.3
• sigs.k8s.io/randfill: v1.0.0

Changed

• cel.dev/expr: v0.18.0 → v0.19.1
• cloud.google.com/go/compute/metadata: v0.3.0 → v0.5.0
• github.com/cncf/xds/go: 555b57e → b4127c9
• github.com/coreos/go-oidc: v2.2.1+incompatible → v2.3.0+incompatible
• github.com/davecgh/go-spew: d8f796a → v1.1.1
• github.com/envoyproxy/go-control-plane: v0.12.0 → v0.13.0
• github.com/envoyproxy/protoc-gen-validate: v1.0.4 → v1.1.0
• github.com/evanphx/json-patch/v5: v5.9.0 → v5.9.11
• github.com/golang-jwt/jwt/v4: v4.5.0 → v4.5.2
• github.com/golang/glog: v1.2.1 → v1.2.2
• github.com/google/cel-go: v0.22.0 → v0.23.2
• github.com/google/gnostic-models: v0.6.8 → v0.6.9
• github.com/google/go-cmp: v0.6.0 → v0.7.0
• github.com/gorilla/websocket: v1.5.0 → e064f32
• github.com/grpc-ecosystem/grpc-gateway/v2: v2.20.0 → v2.24.0
• github.com/jessevdk/go-flags: v1.4.0 → v1.6.1
• github.com/onsi/ginkgo/v2: v2.21.0 → v2.22.0
• github.com/onsi/gomega: v1.35.1 → v1.36.1
• github.com/pmezard/go-difflib: 5d4384e → v1.0.0
• github.com/prometheus/client_golang: v1.19.1 → v1.22.0
• github.com/prometheus/common: v0.55.0 → v0.62.0
• github.com/rogpeppe/go-internal: v1.12.0 → v1.13.1
• github.com/stretchr/objx: v0.5.0 → v0.5.2
• github.com/stretchr/testify: v1.9.0 → v1.10.0
• go.etcd.io/etcd/api/v3: v3.5.16 → v3.5.21
• go.etcd.io/etcd/client/pkg/v3: v3.5.16 → v3.5.21
• go.etcd.io/etcd/client/v2: v2.305.16 → v2.305.21
• go.etcd.io/etcd/client/v3: v3.5.16 → v3.5.21
• go.etcd.io/etcd/pkg/v3: v3.5.16 → v3.5.21
• go.etcd.io/etcd/raft/v3: v3.5.16 → v3.5.21
• go.etcd.io/etcd/server/v3: v3.5.16 → v3.5.21
• go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc: v0.53.0 → v0.58.0
• go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp: v0.53.0 → v0.58.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc: v1.27.0 → v1.33.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace: v1.28.0 → v1.33.0
• go.opentelemetry.io/otel/metric: v1.28.0 → v1.33.0
• go.opentelemetry.io/otel/sdk: v1.28.0 → v1.33.0
• go.opentelemetry.io/otel/trace: v1.28.0 → v1.33.0
• go.opentelemetry.io/otel: v1.28.0 → v1.33.0
• go.opentelemetry.io/proto/otlp: v1.3.1 → v1.4.0
• golang.org/x/crypto: v0.28.0 → v0.36.0
• golang.org/x/net: v0.30.0 → v0.38.0
• golang.org/x/oauth2: v0.23.0 → v0.27.0
• golang.org/x/sync: v0.8.0 → v0.12.0
• golang.org/x/sys: v0.26.0 → v0.31.0
• golang.org/x/term: v0.25.0 → v0.30.0
• golang.org/x/text: v0.19.0 → v0.23.0
• golang.org/x/time: v0.7.0 → v0.9.0
• google.golang.org/genproto/googleapis/api: f6391c0 → e6fa225
• google.golang.org/genproto/googleapis/rpc: f6391c0 → e6fa225
• google.golang.org/grpc: v1.65.0 → v1.68.1
• google.golang.org/protobuf: v1.35.1 → v1.36.5
• k8s.io/api: v0.32.0 → v0.33.0
• k8s.io/apiextensions-apiserver: v0.32.0 → v0.33.0
• k8s.io/apimachinery: v0.32.0 → v0.33.0
• k8s.io/apiserver: v0.32.0 → v0.33.0
• k8s.io/client-go: v0.32.0 → v0.33.0
• k8s.io/code-generator: v0.32.0 → v0.33.0
• k8s.io/component-base: v0.32.0 → v0.33.0
• k8s.io/gengo/v2: 2b36238 → 1244d31
• k8s.io/kms: v0.32.0 → v0.33.0
• k8s.io/kube-openapi: 32ad38e → c8a335a
• sigs.k8s.io/apiserver-network-proxy/konnectivity-client: v0.31.0 → v0.31.2
• sigs.k8s.io/structured-merge-diff/v4: v4.4.2 → v4.6.0

Removed

• github.com/asaskevich/govalidator: f61b66f
• github.com/go-kit/log: v0.2.1
• github.com/go-logfmt/logfmt: v0.5.1
• google.golang.org/appengine: v1.6.7
• gopkg.in/square/go-jose.v2: v2.6.0

Thanks to all our contributors! 😊