0.92.0

Runtime: Decreased Memory Usage from watcher

Buffering of initial pages / init streams is no longer a mandatory process with watcher::Event gaining new Init, InitApply, and InitDone events. These events are read on the store side maintaining the atomicity/completeness guarantees for reflector and Store users.

This constitutes a significant memory decrease for all watcher users, and it has more details in a new kube.rs/blog post.

The downside is a breaking change to watcher::Event. Plain usage of watcher / reflector / Controller should generally not need to change anything, but custom stores / matches on watcher::Event will need an update. If you are writing custom stores, the new signals should be helpful for improved caching.

Thanks to @fabriziosestito via Kubewarden for #1494 . Follow-ups for this feature: #1499 and #1504.

Client: HTTP Proxy Support

Support is now introduced under the http-proxy feature pulling in hyper-http-proxy complementing the already existing socks5 proxy feature.

Thanks to @aviramha via MetalBear for the support in #1496, with follow-ups #1501 + #1502

What's Changed

Added

• Added support for HTTP proxy with hyper-proxy2 by @aviramha in #1496
• Implement client native object reference fetching by @Danil-Grigorev in #1511

Changed

• Reduce buffering between watcher and Store by @fabriziosestito in #1494
• Rename new watcher Event names and remove one that cannot happen by @clux in #1499
• Update tokio-tungstenite to 0.23 by @Toasterson in #1509
• Align watcher::Event init/page variants by @clux in #1504
• Update json-patch to 2.0.0 by @bobsongplus in #1507

Fixed

• Fix potentially panicing unchecked duration adds in runtime by @clux in #1489
• ObjectList now accepts null metadata like upstream k8s does by @aviramha in #1492
• rename http_proxy feature to http-proxy and add it to the umbrella crate by @aviramha in #1501
• move from hyper-proxy2 to hyper-http-proxy by @aviramha in #1502

New Contributors

• @fabriziosestito made their first contribution in #1494
• @Toasterson made their first contribution in #1509
• @bobsongplus made their first contribution in #1507

Full Changelog: 0.91.0...0.92.0

0.91.0

Kubernetes v1_30 support via k8s-openapi 0.22

Please upgrade k8s-openapi along with kube to avoid conflicts.

Unstable Stream Sharing

A more complete implementation that allows sharing watcher streams between multiple Controllers (for #1080) has been added under the unstable-runtime feature-flag in #1449 and #1483 by @mateiidavid. This represents the first usable implementation of shared streams (and replaces the older prototype part in #1470). While some changes are expected, you can check the shared_stream_controller example for a high-level overview.

What's Changed

Added

• Add shared stream interfaces by @mateiidavid in #1449
• Allow to create non-controller owner reference for resource by @Danil-Grigorev in #1475
• feat(runtime): support for owned shared streams by @mateiidavid in #1483

Changed

• Upgrade k8s-openapi to 0.22 and bump MK8SV to 1.25 by @clux in #1485

Removed

• Remove abandoned StreamSubscribe implementation by @clux in #1470

Fixed

• Include inner error message in Display for SerdeError by @XAMPPRocky in #1481
• Remove invalid uniqueItems property from CRDs when Sets are used by @sbernauer in #1484

New Contributors

• @tyrone-wu made their first contribution in #1466
• @XAMPPRocky made their first contribution in #1481

Full Changelog: 0.90.0...0.91.0

0.90.0

Highlights

kube::client::Body Improvements

• Unit testing helpers #1444 + #1445,
• Accuracy; size_hint and is_end_stream implemented in #1452 + internal cleanups #1453 and #1455

Dependency Cleanups

• rustls to 0.23 in #1457
• once_cell removed in #1447 (no longer needed)
• futures feature prune in #1442
• chrono features prune in #1448, and bump its min version pin in #1458

What's Changed

Added

• Add proxy Body::collect_bytes for easier unit tests by @clux in #1445

Changed

• update to rustls 0.23 by @tottoto in #1457

Fixed

• disable unused futures feature by @tottoto in #1442
• Expose Body::empty for easier tests by @clux in #1444
• replace once_cell Lazy with ordinary static by @tottoto in #1447
• replace chrono feature clock with now by @tottoto in #1448
• implement http_body trait method by @tottoto in #1452
• Fix examples for custom clients not authenticating by @clux in #1450
• Set a compatible minimum chrono version by @clux in #1458

Full Changelog: 0.89.0...0.90.0

0.89.0

Upgrading hyper and http to 1.0 and MSRV to 1.75.0

This release completes the hyper & http ecosystem upgrade #1351 via #1438. In particular, this change includes upgrades to http, http-body, tower-http, hyper, hyper-openssl, hyper-rustls, hyper-socks2, hyper-timeout, tame-oauth, tokio-tungstenite, tower-http, rustls, rustls-pemfile, as well as adopting the new hyper_util and http_body_util to make the change.

While this change constitutes significant internal churn (and a new kube::client::Body), our external api remains largely unchanged. Some minor changes are necessary for custom clients, and for integration testing using tower_mock. See the controller-rs upgrade pr or the examples folder in this commit for details.

What's Changed

Added

• client_ext for Client::get and Client::list by @clux in #1375
• direct node access logs/portforward/exec/attach via kubelet debug interface by @XciD in #1428

Changed

• Bump MSRV to 1.75.0 by @clux in #1408
• Ease the bound for reflector to only request identifying metadata by @SOF3 in #1393
• Update base64 requirement from 0.21.4 to 0.22.0 by @dependabot in #1422
• upgrade jsonpath-rust to 0.5.0 by @clux in #1429
• update to hyper 1 by @tottoto in #1438

Fixed

• Serialize TerminalSize fields as PascalCase by @nightkr in #1407
• Kubeconfig allow certificate_authority_data not present in ExecAuthCluster by @ljun20160606 in #1432
• fix: check err on Client::request_stream by @XciD in #1433

New Contributors

• @SOF3 made their first contribution in #1393
• @ljun20160606 made their first contribution in #1432
• @XciD made their first contribution in #1433
• @tottoto made their first contribution in #1438

Full Changelog: 0.88.1...0.89.0

0.88.1

What's Changed

This is a bug fix release for a deserialization issue introduced in 0.88.0.

Fixed

• Minor fixes to ObjectList by @flavio in #1398

New Contributors

• @flavio made their first contribution in #1398

Full Changelog: 0.88.0...0.88.1

0.88.0

Kubernetes v1_29 support via k8s-openapi 0.21

Please upgrade k8s-openapi along with kube to avoid conflicts.

What's Changed

Added

• Add type meta data for list types by @Danil-Grigorev in #1380

Changed

• Bump MSRV to 1.70 by @clux in #1384
• Upgrade k8s-openapi for Kubernetes v1_29 support by @clux in #1394

New Contributors

• @Danil-Grigorev made their first contribution in #1380

Full Changelog: 0.87.2...0.88.0

0.87.2

What's Changed

Added

• Add support for LogParams::since_time by @clux in #1342
• Provide cluster info to exec plugins by @aviramha in #1331
• Allow setting a description on a derived CRD by @sbernauer in #1359

Changed

• Bump MSRV from 1.64 to 1.65 by @clux in #1353
• Switch from jsonpath_lib to jsonpath-rust by @ilya-bobyr in #1345

New Contributors

• @MathiasPius made their first contribution in #1341
• @ilya-bobyr made their first contribution in #1345
• @NickLarsenNZ made their first contribution in #1378

Full Changelog: 0.87.1...0.87.2

0.87.1

Headlines

• fixed a Controller issue with reconciliation requests disappearing when using concurrency #1324
• improved Client with better exec auth behaviour #1320, timeout control #1314, and socks5 proxy handling #1311
• small changes to an unstable streams feature #1304, and a a derive property that is now illegal with syn 2 #1307

Big thanks to everyone involved 🎃

What's Changed

Added

• Feature-flagged support for socks5 proxy in Client by @Razz4780 in #1311
• Add example for raw API Server requests by @mateiidavid in #1330

Changed

• Document Controller::reconcile_on and remove Err input requirement by @clux in #1304
• Bump base64 to 0.21 by @clux in #1308
• Upgrade darling and syn and rename #[kube(struct)] by @clux in #1307

Fixed

• Fixed KUBERNETES_EXEC_INFO environment variable passed to auth plugins by @Razz4780 in #1320
• Fix Controller: pending messages are stuck in the scheduled map by @co42 in #1324
• Set a default write timeout by @alex-hunt-materialize in #1314

Full Changelog: 0.86.0...0.87.1

0.86.0

Headlines

k8s-openapi 0.20 for Kubernetes v1_28

Please note upstream api removals.
As usual, upgrade k8s-openapi along with kube to avoid issues.

Default TLS stack changed to rustls

With last year's upstream changes from rustls (closing all our existing rustls issues - see #1192), this is now the better choice for security, features, and ease of building. The previous default openssl stack can still be used with default-features = false plus the openssl-tls feature.

Controller Configuration

A controller Config has been added to allow tweaking two behaviour parameters (debouncing in #1265 and concurrency limits in #1277) of the Controller. Huge thanks to @aryan9600 for his work.

Streaming Lists

The sendInitialEvents alpha feature is now supported, and is quickly testable in the pod_watcher example when using the feature gate. This will help optimise the memory profile of controllers when the feature becomes generally available. Amazing work by first time contributor @casualjim.

What's Changed

Added

• add controller::Config and debounce period to scheduler by @aryan9600 in #1265
• adds watch-list implementation without breaking changes by @casualjim in #1255
• allow configuring controller's concurrency by @aryan9600 in #1277

Changed

• Change default TLS stack to rustls-tls by @clux in #1261
• Bump k8s-openapi to 0.20.0 by @clux in #1291

Fixed

• core: omit invalid resource version parameters when doing paged requests by @goenning in #1281

New Contributors

• @casualjim made their first contribution in #1255
• @ymgyt made their first contribution in #1290

Full Changelog: 0.85.0...0.86.0

0.85.0

Kubernetes 1.27

This release brings in the new k8s-openapi release.
Be sure to upgrade k8s-openapi and kube simultaneously to avoid multiple version errors:

cargo upgrade -p k8s-openapi -p kube -i

What's Changed

Added

• Add WatchStreamExt::reflect to allow chaining on a reflector by @clux in #1252
• Implement ephemeral containers subresource by @jmintb in #1153

Changed

• Swap dirs-next dependency to cargo-team maintained home crate by @utkarshgupta137 in #1207
• Upgrade k8s-openapi to 0.19.0 for v1_27 support by @clux in #1271

Fixed

• watcher: return NoResourceVersion error if resource version is empty by @aryan9600 in #1259
• Update the scheduler message when preponing by @nightkr in #1260

New Contributors

• @utkarshgupta137 made their first contribution in #1207
• @jdockerty made their first contribution in #1269

Full Changelog: 0.84.0...0.85.0