k8s/controller/v0.2.0

## What's New

Changes included since `k8s/controller/v0.1.0`.
Scoped paths: `kubernetes`.

### ✨ Features
- feat(k8s): Add auto-assign pool for batchsandbox
- feat(snapshot): support public snapshots api on Kubernetes runtime
- feat(server,helm): support env override for api_key
- feat(release): sign and attest release artifacts
- feat(k8s): Add pool auto-assign proposal doc
- feat(server,k8s): implement pause/resume with rootfs snapshot support (#668)
- feat(k8s): add recycle handler;refactor allocator
- feat(server): implement OSEP-0011 signed endpoint for secure route access (#787)
- feat: auto-create/delete PVC and Docker volumes via per-volume API fields (#660)
- feat(k8s): use patch to update batchsandbox status instead of update
- feat(k8s): opt pool controller sync alloc cocurrently and add controller workers flag
- feat(k8s): add Pool rolling update maxUnavailable, close #610 (#610)
- feat(pool): add scaleStrategy to control scaling behavior
- feat(k8s): fix in-memory allocation state polluted by same pool name bug
- feat(k8s): add eviction handler in pool
- feat(k8s): fix recover failed bug
- feat(k8s): add e2e test cases for in-memory pool allocation state
- feat(k8s): fix multi-namespace pool allocation issue; fix recover bug on startup
- feat(k8s): refactor pool allocation store to in-memory, to fix K8s crd size limitation
- feat(k8s): add logs in alloc & pool
- feat(k8s): fix pool alloc atomic bug
- feat(server): configure egress enforcement mode and centralize sidecar env names
- feat(controller): add kube client rate limiter flags and configuration (#490)
- feat(secure-container): add gVisor and Kata RuntimeClass support with e2e tests and secure-container guide docs

### 🐛 Bug Fixes
- fix(k8s): batchsandboxe.status.conditions.type missing "Paused"
- fix(snapshot): harden Kubernetes public snapshot runtime
- fix(helm): move extraEnv under server.env for consistent config grouping
- fix(kubernetes): remove pool allocation finalizer on detach
- fix: verify self-signed controller CA signatures
- fix: build controller package target
- fix: enforce crypto key length policy
- fix(chart/controller): coerce kubeClient.qps/burst to int before gt comparison (#770)
- fix(chart/server): wire imagePullSecrets into ServiceAccount and Deployment (#767)
- fix(config): correct log level TOML key across docs, tests, and deploys
- fix(k8s): fix status deep equal compare, close #638 (#638)
- fix(ingress): avoid full scan
- fix(k8s): remove redundant append in scaleBatchSandbox loop
- fix(pool): correct pod creation count calculation and logging
- fix(k8s): fix available status check in pool status cal
- fix(controller): delete dirty pods in pool allocation
- fix(kubernetes): set SandboxImage to always use TaskExecutorImage in test utils for Kind compatibility
- fix(scheduler): schedule tasks on new pods when BatchSandbox scales out (#102)
- fix: add server rbac for secrets
- fix(kubernetes): update deployment namespace and name in Makefile

### ⚠️ Breaking Changes
- None

### 📦 Misc
- chore(chart): regenerate Chart.lock for opensandbox-controller 0.2.0
- chore(chart): bump opensandbox-controller chart version to 0.2.0
- chore: bump execd to v1.0.16
- chore: bump egress to v1.0.11
- chore: bump execd to v1.0.15
- chore(chart): bump opensandbox-server image to v0.1.13
- docs(helm): clarify chart and app versioning
- Update agent guidance docs
- chore: bump ingress to v1.0.7
- chore: bump egress to v1.0.10
- chore(deps): bump github.com/moby/spdystream in /kubernetes
- build: make native Go builds repeatable
- fix e2e
- fix ut
- chore: bump execd to v1.0.14
- chore: bump OpenTelemetry Go dependencies
- chore: bump egress to v1.0.9
- refactor(kubernetes): move crypto policy helpers
- chore(chart): bump opensandbox-server image to v0.1.12
- docs(k8s): Add docs to provide harness
- chore: bump execd to v1.0.13
- chore(chart): bump opensandbox-server image to v0.1.11
- chore: bump egress to v1.0.8
- chore: bump execd to v1.0.12
- chore: add Dockerfile.dockerignore to reduce build context (#718)
- chore(k8s): refactor task schedule func call in pool controller
- chore(chart): bump opensandbox-server image to v0.1.10
- chore: bump egress to v1.0.7
- chore: bump execd to v1.0.11
- bump ingress gateway to 1.0.6
- chore: bump execd to v1.0.10
- chore: bump egress to v1.0.6
- test(pool_controller): add MaxUnavailable scale strategy to pool specs in tests
- docs(kubernetes): add scaleStrategy option to control scaling rate
- chore: bump egress to v1.0.4
- chore(deps): bump google.golang.org/grpc in /kubernetes
- test(runtime): improve timing waits in process test cases
- chore: bump ingress to 1.0.5 (#560)
- chore: bump execd to v1.0.9 (#564)
- chore: build image for dockerhub
- chore: bump opensandbox server to 0.1.8
- chore: merge kubernetes test workflow
- chore(kubernetes): refactor test code and Makefile for image variables instead of hard-coded strings
- chore: bump execd to v1.0.7 (#451)
- chore: bump code-interpreter to v1.0.2 (#460)
- chore: dump server to 0.1.7 and ingress to 1.0.4
- chore(charts): bump ingress image to v1.0.3
- docs(kubernetes): clarify pause/resume API support status
- chore(k8s): add opensandbox release chart(all-in-one) & update controller release name
- chore(server): add logger instance to main module
- docs(k8s): update error server version in chart value
- docs(k8s): update pool samples
- chore(k8s): update server helm template
- chore(k8s): update helm template
- test(e2e_runtime): remove unused gvisor batchsandbox and pool test data YAML files
- docs: upgrade kubernetes version to 1.21.1+
- test(k8s): update k8s version in e2e workflow and README
- chore(server): add opensandbox server deployment helm charts
- test(gvisor): add gVisor binaries download and improve cluster setup
- chore(deps): bump go.opentelemetry.io/otel/sdk in /kubernetes
- test(kata): remove all e2e Kata Containers runtime tests and related testdata

## 👥 Contributors

Thanks to these contributors ❤️

- @jiangqianjun.jqj
- @github-actionsbot
- @yoogoc
- @baiaoshh
- @wenxiang.jin
- @pingshan.wj
- @fengjianhui.fjh
- @sauce
- @yutian.taoyt
- @dependabotbot
- @Pangjiping
- @changren-wcr
- @gongxiangfeng
- @premprakashsharma.dev
- @pangjiping.pjp
- @qiyan.zm
- @hi
- @liuxiaopai-ai