Expand on Route Accepted Condition

[arkodg]

What would you like to be added:

Add more guidance on Route Accepted condition

• Is a Route Accepted if the Listener is not Programmed ?
• Is the Route Accepted condition only tied to the Route spec semantics ?
• How does a app dev who only has visibility into HTTPRoute be made aware of listener failures ?

Relates to #2548

Why this is needed:

[sunjayBhatia]

IMO the Route Accepted condition documentation should be augmented to match the Gateway/Listener documentation:

gateway-api/apis/v1/gateway_types.go

Lines 918 to 920 in c9cd2a1

	// This condition indicates that the listener is syntactically and
	// semantically valid, and that all features used in the listener's spec are
	// supported.

particularly the syntactically and semantically valid part, so we can indicate a Route can be Accepted since it is completely valid or valid enough to generate some config, but not Programmed due to a Gateway/Listener issue or missing backend ref etc.

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/lifecycle stale

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/lifecycle rotten

[k8s-triage-robot]

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

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