v0.9.0

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Changes since v0.8.3

🚨 Significant Changes 🚨

Envtest Refactor & Support for 1.20+ Clusters (#​1486)

This adds support for newer Kubernetes clusters, particularly those that require the use of authentication & the secure port, as well as some refactors & deprecation.

By and large, these changes should be transparent for most users.

As a result of the removal of the insecure port in newer k8s versions, authentication & authorization are now on by default in envtest (and the secure port is used by default). The built-in REST config now returns an admin account, meaning perceived impact should be minimal in most cases -- if you're using the built-in Environment.Config, things should just work.

However, if you manually construct new REST configs from raw URLs, things will break. You'll need to migrate to using Environment.AddUser instead.

Additionally, a number of options on ControlPlane & APIServer around the secure & insecure ports are deprecated -- see the docs for more details.

Envtest Setup Tool (#​1488)

A new tool has been introduced for setting up envtest binaries at sigs.k8s.io/controller-runtime/tools/setup-envtest. This replaces the existing hack/setup-envtest.sh script, so if you were depending on that, you should switch. See the docs for more information.

Kubernetes Dependencies

Now at v1.21.1.

⚠️ Breaking Changes

• Update Kubernetes v1.21 dependencies and use Go 1.16 (#​1389)
  moderate impact: if you're on an old Go version, it's time to upgrade 😉
• Envtest should modify CRDs appropriately when using webhooks (#​1525)
  minimal impact: one of the methods on WebhookInstallOptions had a signature change. Mostly internal, expected that this method is unlikely to be called directly.
• Allow setting NewClientFunc w/o implementing an interface (#​1473)
  moderate impact: If you're constructing a custom client, this'll change how you do so, but should make it easier in the long run.
• Support global controller options in component config (#​1371)
  minimal impact: adds new method to Manager interface, generally only implemented by CR)
• Fix race in the delegating logger (#​1361)
  minimal impact: exposed piece of internals was changed)

✨ New Features

• Structured args in Testing (#​1541) -- the use of templated args (Environment.KubeAPIServerFlags) is now deprecated -- use GetAPIServer().Configure() instead.
• Clean up pkg/internal/testing (#​1540)
• Cleanup Webhook server setup (#​1504)
• EnvTest Binaries Setup Tool (#​1488)
• Add SelectorsByObject option to cache (#​1435)
• Simple helper for unmanaged webhook server (#​1429)
• pkg/log/zap: clarify zap level vs. logr verbosity (#​1485)
• Add ClientWithWatch for use in CLIs (#​1460)
• Add client.StrategicMergeFrom (#​1406)
• Add tests in controller that use source.Channel (#​1373)
• Revert injection deprecation logging until internal injection code use stops (#​1382)
• Update dependencies to Kubernetes v1.21.1 (#​1536)
• Adding certwatcher as an external package (#​1441)
• Adding TokenReview.auth.k8s.io/v1 webhook support (#​1440)

🐛 Bug Fixes

• Envtest should enable conversion only for convertible GVKs (#​1532)
• Envtest conversion mods should set strategy and review versions (#​1531)
• Honor LeaderElectionReleaseOnCancel (#​1523)
• Fakeclient: Fix List for unregistered type through unstructured (#​1521)
• Metadata client applies patch options (#​1508)
• Fakeclient: Support WithWatch (#​1510)
• Webhook servers should always start before cache syncs (#​1512)
• Add manager.Options.WebhookServer so webhook server can be set (#​1500)
• controllerutil.CreateOrPatch doesn't update not empty Status fields if Spec fields are specified (#​1403)
• Metadata only objects should always preserve GroupVersionKind (#​1484)
• Actually inject the scheme in StandaloneWebhook (#​1490)
• Fakeclient: Do not require ListKind (#​1467)
• Event recorder should not send events when broadcaster is stopped (#​1451)
• Fix the typo of UseExistingCluster comment (#​1434)
• Fix cache sync timeout functionality (#​1428)
• Deflake should update CRDs if already present in the cluster (#​1430)
• Controller: Wait for all reconciliations before shutting down (#​1427)
• Print webhook config options from scratch-env example (#​1302)
• Fix client.Apply and client.Merge to satisfy Patch (#​1410)
• Manager leader election: Don't reset restcfg UserAgent (#​1401)
• Fix a possible temporary directory leak (#​1331)
• Fix a race condition between leader election and recorder (#​1379)
• Handle unstructured CRD objects in envtest webhook mods (#​1526)

🌱 Others

• Use gomodules.xyz/jsonpatch/v2 v2.2.0 (#​1533)

Thanks to all our contributors! 😊