Add conformance tests with requestHeaderModifier

[Treenhan]

What type of PR is this?
/kind test
/area conformance

What this PR does / why we need it:
Adding conformance testing by combining one Core Capability (i.e. requestHeaderModifier) wither other Extended Capabilities (i.e. requestMirror, responseHeaderModifier, and urlRewrite)

Which issue(s) this PR fixes:
Fixes #2037

NONE

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Treenhan / name: Nathan Luong (f9c1a1d, 95bfc6f, 64969e7, 1c72eb7, 861fc00, 515b03d, 9a22b30, c8a3718, 0daa6a8)

[k8s-ci-robot]

Welcome @Treenhan!

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[k8s-ci-robot]

Hi @Treenhan. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[LiorLieberman]

/assign @LiorLieberman
/cc @LiorLieberman

[LiorLieberman]

Thanks @Treenhan !

Aside from a few small comments looks good.

/ok-to-test

[Xunzhuo]

Plz sign CLA first @Treenhan, Thanks!

[Treenhan]

Plz sign CLA first @Treenhan, Thanks!

I just created CLA approval request, currently waiting on that to go through

[LiorLieberman]

Thanks @Treenhan
Looks good to me! I ran the tests and everything works as expected.

/lgtm
@robscott can you approve ?

[LiorLieberman]

/cc @robscott
/assign @robscott

[Treenhan]

Hi @robscott could you please take a look?

[robscott]

Thanks @Treenhan! This is great! Nothing blocking here, but a couple small nits. Would appreciate a review from others here as well:

/cc @arkodg @mlavacca @michaelbeaumont @sunjayBhatia @Xunzhuo

[sunjayBhatia]

test all pass with contour 👍🏽

[Treenhan]

/retest

[k8s-ci-robot]

@Treenhan: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-gateway-api-verify	c8a3718	link	true	/test pull-gateway-api-verify

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[robscott]

Thanks @Treenhan!

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: robscott, Treenhan

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Needs approval from an approver in each of these files:

• conformance/OWNERS [robscott]

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