Update dependency kopf to v0.28.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
kopf	==0.27rc6 → ==0.28.3

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Release Notes

nolar/kopf (kopf)

v0.28.3

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Enhancements:

• Renamed @kopf.on.this to @kopf.subhandler for readability. #​618

Bugfixes:

• Fixed the resource discovery in case of parallel requests (improper locks & checks). #​615

Internals:

• Fixed the usage example of kopf.execute() to be asynchronous. #​618
• CI functional tests fixed for ResourceWarnings due to pykube-ng's session left-overs. #​619 #​608

v0.28.2

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Bugfixes:

• Fixed superseding of one cause by another (deletion-during-creation/-update/-resume, update-during-resume, etc). #​607 #​606

v0.28.1

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Bugfixes:

• No more false "patching failed with inconsistencies" warning for CRDs with status as a subresource. #​588

Internal:

• Back-ported GitHub Actions for CI tests. #​592, originally #​582

v0.28

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General topic: stability, resilience, recoverability, better logging and error handling.

New features:

• JSON logging with --log-format=json. #​544
• Plain-text logging --log-format=plain. #​544

Bugfixes:

• On-field handlers were triggered for non-existent fields with None→None change. #​523
• Sub-handlers' state was not purged, preventing their execution in the future. #​517
• Timers were ticking forever after the resource was deleted (if there were no finalizers). #​548
• Persisted states of executed and then filtered-out handlers were not purged. #​557

Resilience improvements:

• Annotations from other Kopf-based operators are fully ignored to avoid ping-pong effects. #​539 #​538
• The operator will force-stop itself by SIGKILL after 10 minutes of attempts to stop gracefully. #​543
• Crash the whole operator on unrecoverable errors in watchers/workers. #​509
• Throttle individual resource processing on unexpected errors. #​510
• Extra exceptions are intercepted and ignored for k8s-event posting. #​507
• Treat client timeouts during watches similar to other API errors. #​506
• Handle all connection errors from the initial streaming request. #​512

Experience improvements:

• Annotations restrictions on key length are reworked to allow longer names (v2/v1 keys). #​529
• Annotations values are now compacted (no spaces) for the better visual outlook. #​516
• Log/warn when the resulting patched object does not match the intended patch. #​527
• Log when the patched object unexpectedly disappeared (e.g. was deleted). #​559
• Log K8s API error explanations from K8s API itself, not from the HTTP client library. #​558
• Filtered-out resources do not create phantom logs & do not get annotated anymore. #​545
• Cluster-scoped objects are logged by their name, without "None" as the namespace. #​544
• Better phrasing for some log messages to avoid confusion. #​540
• Documentation fixes. #​530

Internal changes:

• The first release since the fork. #​502 #​500 #​505 #​546
• CI feedback is sped up from ≈40-50 mins to ≈5 mins per push. #​536 #​537
• K3d/K3s is used for CI functional/integration testing; Minikube is for nightly tests. #​536 #​547
• K8s versions are updated for CI builds. #​501
• Imports are sorted with isort. #​525 #​531
• Added tests for operators' peering. #​519
• Added tests for logging & loggers. #​544
• Get rid of mocks for causes & registries, use normal classes. #​521
• Time-based tests are stabilised (though not fully fixed). #​534 #​528 #​520 #​522
• Asyncio tasks are now named in Python 3.8+, which makes the debugging easier. #​542
• Python 3.9 support. #​561

v0.27.1

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Bugfixes:

• Support Python 3.9 with Kopf's 0.27 codebase and features. #​562

v0.27

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Originally released on 2020-05-11 16:37:41+00:00 (link).

WARNING: The changes are backward-compatible (in theory). But the changes are also massive, so things can break unexpectedly (in practice). Test this upgrade carefully.

New features:

• @kopf.daemon for background resource-accompanying tasks/threads. #​330 #​342 #​360
• @kopf.timer for regular and/or delayed activities & checks. #​330 #​342 #​360
• kopf.PRESENT for labels/annotations filters (instead of misleading None). #​327
• kopf.ABSENT for labels/annotations filters. #​327
• Arbitrary callbacks for labels/annotations filters. #​328
• kopf.all_(), kopf.any_(), kopf.not_(), kopf.none_() helpers for callbacks aggregation. #​345
• A proper official documented way to configure operators; plus docs. #​336 #​337 #​331
• Identities of operators, allowing multiple non-colliding operators for the same resources. #​331 #​344
• Configurable client-side timeouts for watch requests. #​322 #​336
• Configurable storages for handling state & diff-bases. #​331 #​346 #​353

Improvements:

• Internal instant functions (lifecycles, when-filters) do not use thread pools anymore. #​326
• Bodies & patches now have magical properties for metadata, spec, status, with "live view" into data. #​327
• Labels and annotations are passed as additional kwargs (similar to body/spec/meta/status). #​327
• All user-facing types and classes are published as framework's public interface (via top-level package). #​341
• Switch KopfExample & KopfPeering from v1beta1 to v1 CRD API; keep v1beta1 nearby. #​364
• Documentation is restructured for separate pages for all aspects of handling (kwargs, filters, etc). #​325
• Explain the "structural schemas" of K8s 1.16+, and v1-vs-v1beta1 CRD differences. #​364

Fixes:

• Threads from the sync handlers executors are not leaked (not left orphaned) at exit. #​326
• Handlers' state is now persisted in annotations, not in status: for custom & built-in resources. This solves the issues with built-ins not handled properly in K8s 1.16+. #​331
• Fix the on-field handler not being invoked when the diff is too generic (relative to the field). #​340
• Provoke after-sleep handling cycles even on resources with no arbitrary field preservation. #​343
• Fix premature finalizer removal with 2+ deletion handlers. #​361
• Avoid no-effect patching and potentially delaying handling cycles. #​362

Internal changes:

• Coveralls is made optional. #​363
• Compatibility with Kubernetes 1.18 in CI/CD. #​335
• pytest & pytest-asyncio are pinned temporarily until fixed on their side. #​352

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