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[GEP-1911] websocket backend protocol conformance #2495

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merged 4 commits into from Oct 24, 2023

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dprotaso
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/kind test
/area conformance

What this PR does / why we need it:

This PR adds a conformance test validating implementations support websocket over cleartext when the target Kubernetes Service Service Port has a kubernetes.io/ws appProtocol

This PR includes echo-basic changes so it will need to bumped after this PR

Which issue(s) this PR fixes:

Related #1911 #205

Does this PR introduce a user-facing change?:

NONE

@k8s-ci-robot k8s-ci-robot added release-note-none Denotes a PR that doesn't merit a release note. kind/test area/conformance cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Oct 19, 2023
@dprotaso dprotaso changed the title [GEP-1911] websocket backend support [GEP-1911] websocket backend protocol conformance Oct 19, 2023
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/assign @arkodg @mlavacca @sunjayBhatia

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arkodg commented Oct 20, 2023

this PR looks good, lets wait for #2456 to land first, since this PR will need a rebase

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/cc @mlavacca

conformance/echo-basic/echo-basic.go Show resolved Hide resolved
conformance/tests/httproute-backend-protocol-ws.yaml Outdated Show resolved Hide resolved
protocol: TCP
appProtocol: kubernetes.io/ws
port: 8082
targetPort: 3000
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Do we really want to use the same targetPort for both TCP and WS traffic?

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What is your concern about using the same targetPort?

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I have no real concern, I was just wondering if this choice was backed by a specific reason. If not, I think we should prefer not to use the same back-side port for multiple front-side ports.

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I have no real concern, I was just wondering if this choice was backed by a specific reason. I think we should prefer not to use the same back-side port for multiple front-side ports.

Multiplexing HTTP/Websockets on the same port is really common. The only reason why I created a separate ServicePort with a unique port # is because of the following K8s limitation that's being tracked here - kubernetes/kubernetes#118407

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ok, sounds good to me 👍

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Thanks @dprotaso, ltgm!

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dprotaso, mlavacca

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Oct 24, 2023
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arkodg commented Oct 24, 2023

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Oct 24, 2023
@k8s-ci-robot k8s-ci-robot merged commit 9c830e5 into kubernetes-sigs:main Oct 24, 2023
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@dprotaso dprotaso deleted the gep-1911-ws branch October 26, 2023 19:06
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4 participants