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staging: extract CRI streaming modules with client-go compatibility

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Extract streaming code into dedicated staging modules while keeping stable
compatibility APIs for external client-go consumers.

This commit:
- adds `k8s.io/cri-streaming` for CRI exec/attach/portforward server code
- adds `k8s.io/streaming` as the canonical home for shared transport
  primitives (`httpstream`, `spdy`, `wsstream`, runtime helpers)
- switches in-tree transport consumers to `k8s.io/streaming`
- removes in-tree kubelet CRI streaming package
- preserves NO_PROXY/no_proxy CIDR handling in extracted SPDY proxier logic
- adds deprecated `k8s.io/apimachinery/pkg/util/httpstream` compatibility
  wrappers (`httpstream`, `spdy`, `wsstream`) backed by `k8s.io/streaming`
- restores exported client-go SPDY/portforward API signatures to
  apimachinery `httpstream` types for downstream compatibility
- adds streaming-native client-go adapters/constructors so in-tree callers
  can use `k8s.io/streaming` without changing external compatibility APIs
- deduplicates SPDY-over-websocket dial negotiation shared by compat and
  streaming tunneling dialers
- logs dropped unknown stream types in `RemoveStreams` adapter fallbacks to
  improve compatibility-path debuggability
- adds integration coverage for the streaming-upgrader-to-client-go-compat
  adapter path against a real cri-streaming exec endpoint
- clarifies kubectl streaming import aliasing to avoid `httpstream` package
  ambiguity
- updates tests, import restrictions, publishing metadata, and vendor/module
  metadata for the new staging modules

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

Kubernetes-commit: 1ee1ff97fb7f9755a44d29bee0c80d2ccbed68dc
This commit is contained in:
Davanum Srinivas
2026-02-28 19:40:07 -05:00
committed by Kubernetes Publisher
parent 404001820a
commit fbb57b8768
2 changed files with 24 additions and 12 deletions
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go.mod
+12 -4
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@@ -8,10 +8,10 @@ godebug default=go1.26
require (
golang.org/x/time v0.14.0
k8s.io/api v0.0.0-20260310163416-845a10f7ee1f
k8s.io/apimachinery v0.0.0-20260310163039-3c9213c5d2c9
k8s.io/client-go v0.0.0-20260310163919-32a3ac47cf42
k8s.io/code-generator v0.0.0-20260310164841-83f17fe2d1ae
k8s.io/api v0.0.0
k8s.io/apimachinery v0.0.0
k8s.io/client-go v0.0.0
k8s.io/code-generator v0.0.0
k8s.io/klog/v2 v2.140.0
k8s.io/kube-openapi v0.0.0-20260304202019-5b3e3fdb0acf
k8s.io/utils v0.0.0-20260210185600-b8788abfbbc2
@@ -56,3 +56,11 @@ require (
sigs.k8s.io/randfill v1.0.0 // indirect
sigs.k8s.io/yaml v1.6.0 // indirect
)
replace (
k8s.io/api => ../api
k8s.io/apimachinery => ../apimachinery
k8s.io/client-go => ../client-go
k8s.io/code-generator => ../code-generator
k8s.io/streaming => ../streaming
)