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httproute: drop ImplementationSpecific match types #850

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hbagdi
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@hbagdi hbagdi commented Sep 3, 2021

What type of PR is this?

/kind api-change

What this PR does / why we need it:
ImplementationSpecific is trappy match type: it provides an escape hatch
to do more but it doesn't take into account that multiple
implementation-specific match types could be possible. Use-cases exist
in this area but we have not thought through them deeply.
Being conservative and dropping this feature in v1alpha2 to avoid any potential
breaking change in the future. We may revisit this in the future as we gain a
better understanding.
Which issue(s) this PR fixes:

Fixes #832

Does this PR introduce a user-facing change?:

ImplementationSpecific match types in HTTPRoute's path, query, and header matches have been removed.

ImplementationSpecific is trappy match type: it provides an escape hatch
to do more but it doesn't take into account that multiple
implementation-specific match types could be possible. Use-cases exist
in this area but we have not thought through them deeply.
Being conservative and dropping this feature in v1alpha2 to avoid any potential
breaking change in future. We may revisit this in future as we gain a
better understanding.

For kubernetes-sigs#832
@hbagdi hbagdi added this to the v1alpha2 milestone Sep 3, 2021
@k8s-ci-robot k8s-ci-robot added kind/api-change Categorizes issue or PR as related to adding, removing, or otherwise changing an API cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Sep 3, 2021
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hbagdi

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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 Sep 3, 2021
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hbagdi commented Sep 3, 2021

/cc @robscott @youngnick @bowei

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robscott commented Sep 3, 2021

Adding a hold for one more person to sign off on this, but LGTM.

/lgtm
/hold

@k8s-ci-robot k8s-ci-robot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Sep 3, 2021
@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Sep 3, 2021
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/lgtm
/hold cancel

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Sep 6, 2021
@k8s-ci-robot k8s-ci-robot merged commit 7789b91 into kubernetes-sigs:master Sep 6, 2021
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HTTPRoute matching should support custom match types
4 participants