feat: add ipv4/ipv6 dual stack support by juwon8891 · Pull Request #4375 · envoyproxy/gateway

juwon8891 · 2024-09-30T16:10:53Z

What type of PR is this?

feat: add ipv4/ipv6 dual stack support

What this PR does / why we need it:
This PR adds IPv4/IPv6 dual stack support to Envoy Gateway. It implements test cases for routing to IPv6-only, dual-stack, and IPv4-only services using HTTPRoute resources. This enhancement is crucial for supporting modern network environments and ensuring compatibility with both IPv4 and IPv6 infrastructures.

Key changes include:

New test file backend_dualstack.go for testing IPv6 and dual-stack backends
New test file httproute_dualstack.go for testing HTTPRoute support with various IP versions
New manifest files for defining resources used in dual-stack tests
Implementation of getDnsLookupFamily function to control DNS lookup behavior

Which issue(s) this PR fixes:

Fixes #184

Additional Notes:

Tests are skipped in IPv4-only environments (IP_FAMILY=ipv4)
All tests run in IPv6 or dual-stack environments (IP_FAMILY=ipv6 or IP_FAMILY=dual)

api/v1alpha1/backend_types.go

api/v1alpha1/shared_types.go

test/cel-validation/envoyproxy_test.go

test/e2e/testdata/backend-dualstack.yaml

arkodg · 2024-09-30T21:48:31Z

hey @juwon8891 we probably also need to add some logic in

gateway/internal/gatewayapi/route.go

Line 1328 in 4b8c2f5

func (t *Translator) processServiceDestinationSetting(

which selects specific endpoints based on the ipFamilyPolicy field

api/v1alpha1/backend_types.go

site/content/en/v1.1/api/extension_types.md

arkodg · 2024-10-03T00:05:50Z

test/e2e/tests/httproute_dualstack.go

can we also check for the IP type in the X-Forwarded-For response header ?

codecov · 2024-10-07T13:41:34Z

Codecov Report

Attention: Patch coverage is 61.11111% with 7 lines in your changes missing coverage. Please review.

Project coverage is 65.80%. Comparing base (7188dad) to head (faa584b).

Files with missing lines	Patch %	Lines
internal/gatewayapi/helpers.go	36.36%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4375      +/-   ##
==========================================
+ Coverage   65.78%   65.80%   +0.02%     
==========================================
  Files         210      210              
  Lines       31516    31557      +41     
==========================================
+ Hits        20732    20766      +34     
- Misses       9588     9594       +6     
- Partials     1196     1197       +1

☔ View full report in Codecov by Sentry.
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arkodg · 2024-10-07T23:48:24Z

hey @juwon8891 lint is failing


internal/xds/translator/testdata/in/xds-ir/tcp-listener-ipfamily.yaml
  Error: 7:5 [indentation] wrong indentation: expected 6 but found 4
  Error: 11:9 [indentation] wrong indentation: expected 10 but found 8
  Error: 12:11 [indentation] wrong indentation: expected 12 but found 10
  Error: 13:32 [new-line-at-end-of-file] no new line character at the end of file

api/v1alpha1/envoyproxy_types.go

internal/ir/xds.go

api/v1alpha1/envoyproxy_types.go

internal/xds/translator/cluster.go

api/v1alpha1/envoyproxy_types.go

internal/ir/xds.go

internal/xds/translator/listener.go

arkodg · 2024-10-09T05:16:53Z

hey @juwon8891 looks like some gateway api tests got wiped out, can you add them back ?

test/e2e/tests/backend_dualstack.go

test/e2e/tests/httproute_dualstack.go

api/v1alpha1/envoyproxy_types.go

zhaohuabing · 2024-10-14T23:53:35Z

@juwon8891 Do you have time to address the comments this week? We want to ensure dual stack support is ready to be included in the coming v1.2.

juwon8891 · 2024-10-15T00:27:02Z

Yes, I'm working on it. I'll answer as soon as possible

internal/xds/translator/cluster.go

zirain · 2024-10-17T00:13:47Z

test/e2e/tests/httproute_dualstack.go

gateway/test/e2e/tests/utils.go

Line 535 in 4b8c2f5

func QueryLogCountFromLoki(t *testing.T, c client.Client, keyValues map[string]string, match string) (int, error) {

can be used to verify pod ip/port

I'm still working on this test part. I'll post it separately as another PR.

internal/gatewayapi/backendtlspolicy.go

internal/xds/translator/listener.go

arkodg · 2024-10-22T01:08:46Z

hey @juwon8891, added some minor comments, but overall LGTM !

zirain · 2024-10-22T08:23:40Z

@juwon8891 please run make gen-check to pass the gen-check CI.

zirain · 2024-10-22T09:40:42Z

internal/ir/xds.go

can you make it a pointer? so that this PR won't be that huge.

I'll post it separately as another PR.

arkodg · 2024-10-22T16:12:27Z

@juwon8891 DCO is failing, can you sign your commits

Signed-off-by: Juwon Hwang (Kevin) <juwon8891@gmail.com>

arkodg

LGTM thanks !

guydc

LGTM!

guydc · 2024-10-24T21:48:51Z

/retest

juwon8891 requested a review from a team as a code owner September 30, 2024 16:10

juwon8891 force-pushed the dualstack branch from 020d3e9 to 14062cf Compare September 30, 2024 18:16

arkodg reviewed Sep 30, 2024

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juwon8891 force-pushed the dualstack branch 2 times, most recently from 263b8bf to b97d58a Compare October 8, 2024 22:21

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juwon8891 force-pushed the dualstack branch from 15b2967 to 0b36cb8 Compare October 22, 2024 09:50

juwon8891 force-pushed the dualstack branch from 0b36cb8 to faa584b Compare October 23, 2024 02:04

juwon8891 added 4 commits October 24, 2024 20:46

feat: dualstack support

6732a91

Signed-off-by: Juwon Hwang (Kevin) <juwon8891@gmail.com>

chore: rebase main

06719ef

Signed-off-by: Juwon Hwang (Kevin) <juwon8891@gmail.com>

chore: fix lint

d52f0ad

Signed-off-by: Juwon Hwang (Kevin) <juwon8891@gmail.com>

feat: dual stack support

dc7edb1

Signed-off-by: Juwon Hwang (Kevin) <juwon8891@gmail.com>

juwon8891 force-pushed the dualstack branch from 54afd85 to dc7edb1 Compare October 24, 2024 11:46

feat: dual stack support

bb01a9c

Signed-off-by: Juwon Hwang (Kevin) <juwon8891@gmail.com>

arkodg approved these changes Oct 24, 2024

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arkodg added this to the v1.2.0-rc1 milestone Oct 24, 2024

guydc approved these changes Oct 24, 2024

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arkodg merged commit d7849d7 into envoyproxy:main Oct 24, 2024

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