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fix: add validation for request buffer limit#7687

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arkodg merged 2 commits intoenvoyproxy:mainfrom
kkk777-7:add-validate-reqbuffer-limit
Dec 17, 2025
Merged

fix: add validation for request buffer limit#7687
arkodg merged 2 commits intoenvoyproxy:mainfrom
kkk777-7:add-validate-reqbuffer-limit

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@kkk777-7
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@kkk777-7 kkk777-7 commented Dec 7, 2025

What this PR does / why we need it:
Added gatewayapi layer validation for request buffer limit in BackendTrafficPolicy.

Which issue(s) this PR fixes:

Fixes #7677

Release Notes: Yes

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
@kkk777-7 kkk777-7 requested a review from a team as a code owner December 7, 2025 15:42
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codecov bot commented Dec 7, 2025

Codecov Report

❌ Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 72.38%. Comparing base (343aeb3) to head (322fa8b).
⚠️ Report is 8 commits behind head on main.

Files with missing lines Patch % Lines
internal/gatewayapi/backendtrafficpolicy.go 80.00% 0 Missing and 1 partial ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #7687      +/-   ##
==========================================
- Coverage   72.42%   72.38%   -0.04%     
==========================================
  Files         234      234              
  Lines       34538    34542       +4     
==========================================
- Hits        25013    25003      -10     
- Misses       7737     7752      +15     
+ Partials     1788     1787       -1     

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jukie
jukie previously approved these changes Dec 7, 2025
@zirain
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zirain commented Dec 7, 2025

is it possible to validate this with CEL?

arkodg
arkodg previously approved these changes Dec 8, 2025
@kkk777-7
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kkk777-7 commented Dec 8, 2025

is it possible to validate this with CEL?

I've thought about this a bit, but given the possible input types, it seems somewhat difficult to implement strict validation at the CRD layer.
https://github.com/envoyproxy/gateway/blob/main/api/v1alpha1/backendtrafficpolicy_types.go#L181-L183

I feel it’s best to limit the CRD validation to format checks and handle min/max constraints within the application code instead. What do you think?

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
@kkk777-7 kkk777-7 dismissed stale reviews from arkodg and jukie via 322fa8b December 15, 2025 05:24
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/retest

@arkodg arkodg merged commit 3e6e994 into envoyproxy:main Dec 17, 2025
53 of 55 checks passed
millermatt pushed a commit to millermatt/envoy-gateway that referenced this pull request Jan 4, 2026
Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: Matt Miller <millermatt@outlook.com>
zirain pushed a commit to zirain/gateway that referenced this pull request Jan 8, 2026
Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>
rudrakhp pushed a commit to rudrakhp/gateway that referenced this pull request Jan 8, 2026
Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>
zirain added a commit that referenced this pull request Jan 9, 2026
* fix: set observedGeneration in envoy patch policy (#7715)

* fix: set observedGeneration in envoy patch policy

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>

* add release note

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>

---------

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>

* fix: add validation for request buffer limit (#7687)

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>

* fix: setting externalTrafficPolicy for NodePort service type (#7823)

Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>

* fix: make port-forward worked for OTel collector on port 19001 (#7860)

Signed-off-by: zirain <zirain2009@gmail.com>

* chore: fix goroutine leak (#7880)

fix goroutine leak

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>

* fix gen

Signed-off-by: zirain <zirain2009@gmail.com>

* bump envoy to 1.35.8

Signed-off-by: zirain <zirain2009@gmail.com>

---------

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>
Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
Co-authored-by: Kota Kimura <86363983+kkk777-7@users.noreply.github.com>
Co-authored-by: Rudrakh Panigrahi <rudrakh97@gmail.com>
Co-authored-by: Huabing (Robin) Zhao <zhaohuabing@gmail.com>
rudrakhp added a commit that referenced this pull request Jan 9, 2026
* fix: set observedGeneration in envoy patch policy (#7715)

* fix: set observedGeneration in envoy patch policy

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>

* add release note

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>

---------

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* fix: add validation for request buffer limit (#7687)

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* fix: nil pointer error when applying BackendTrafficPolicy to HTTPRoute with no backendRefs (#7765)

* fix: checking route section name in backend traffic policy

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* fix: setting externalTrafficPolicy for NodePort service type (#7823)

Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* fix: add indexing and processing for CRL references in ClientTrafficPolicies (#7829)

Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* feat: change the benchmark report to json format (#6818)

* benchmark json output

Signed-off-by: zirain <zirain2009@gmail.com>

* fix

Signed-off-by: zirain <zirain2009@gmail.com>

* fix

Signed-off-by: zirain <zirain2009@gmail.com>

* fix lint

Signed-off-by: zirain <zirain2009@gmail.com>

* fix

Signed-off-by: zirain <zirain2009@gmail.com>

* revert

Signed-off-by: zirain <zirain2009@gmail.com>

* fix seconds

Signed-off-by: zirain <zirain2009@gmail.com>

---------

Signed-off-by: zirain <zirain2009@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* bechmark: scale up RPS to test data plane CPU performance (#7810)

* Scale up RPS to test data plane CPU performance

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* set duration to 120s

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* discard invalid samples

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* change scrape interval to 10s

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* remove invalid cpu sampling data

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* reduce duration to 60

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* fix benchmark end time

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* fix data plane benchmark start time

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* increase test time to get more samples

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* adjust rps for each scale

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>

* address comments

Signed-off-by: Huabing(Robin) Zhao <zhaohuabing@gmail.com>

---------

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
Signed-off-by: Huabing(Robin) Zhao <zhaohuabing@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* fix: make port-forward worked for OTel collector on port 19001 (#7860)

Signed-off-by: zirain <zirain2009@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* chore: fix goroutine leak (#7880)

fix goroutine leak

Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

* fix gen-check

Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>

---------

Signed-off-by: kkk777-7 <kota.kimura0725@gmail.com>
Signed-off-by: Rudrakh Panigrahi <rudrakh97@gmail.com>
Signed-off-by: zirain <zirain2009@gmail.com>
Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
Signed-off-by: Huabing(Robin) Zhao <zhaohuabing@gmail.com>
Co-authored-by: Kota Kimura <86363983+kkk777-7@users.noreply.github.com>
Co-authored-by: zirain <zirain2009@gmail.com>
Co-authored-by: Huabing (Robin) Zhao <zhaohuabing@gmail.com>
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BackendTrafficPolicy does not validate maximum value of requestBuffer.limit

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