Add authentication.oidc feature flag

[creydr]

Problem

As the Eventing OIDC feature track describes, the feature track leverages a new config-features configuration called authentication.oidc.

We should add:

• The new flag in https://github.com/knative/eventing/blob/main/config/core/configmaps/features.yaml with the value disabled
• The new flag name in https://github.com/knative/eventing/blob/main/pkg/apis/feature/flag_names.go
• A helper method like func (e Flags) IsOIDCAuthentication() bool that would verify the authentication.oidc feature flag is enabled.

Time Estimate (optional)

1

Additional context (optional)

/good-first-issue

[knative-prow]

@creydr:
This request has been marked as suitable for new contributors.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-good-first-issue command.

In response to this:

Problem

As the Eventing OIDC feature track describes, the feature track leverages a new config-features configuration called authentication.oidc.

We should add:

• The new flag in https://github.com/knative/eventing/blob/main/config/core/configmaps/features.yaml with the value disabled
• The new flag name in https://github.com/knative/eventing/blob/main/pkg/apis/feature/flag_names.go
• A helper method like func (e Flags) IsOIDCAuthentication() bool that would verify the authentication.oidc feature flag is enabled.

Time Estimate (optional)

1

Additional context (optional)

/good-first-issue

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[karthikmurali60]

@creydr can i work on this issue? I'd love to contribute !

[creydr]

Welcome to Knative @karthikmurali60 🎉 👋
Glad to hear you want to contribute. I am currently creating the tasks for the OIDC implementation in Knative Eventing.
Just a side note: Not all of the created issues might contain all the needed information right now or might be reworked and need to be triaged (that's the reason why I marked them as DRAFT or added the kind/TBD label). But this issue looks fine I guess.

[karthikmurali60]

Thanks for the information @creydr !!
Happy to be contributing to Knative

[Priyansurout]

can we do this for A helper method like func (e Flags) IsOIDCAuthentication() bool that would verify the authentication.oidc feature flag is enabled.```
package feature

const (
KReferenceGroup = "kreference-group"
DeliveryRetryAfter = "delivery-retryafter"
DeliveryTimeout = "delivery-timeout"
KReferenceMapping = "kreference-mapping"
NewTriggerFilters = "new-trigger-filters"
TransportEncryption = "transport-encryption"
EvenTypeAutoCreate = "eventtype-auto-create"
OIDCAuthentication = "authentication.oidc"
)

// Flags represents a set of feature flags.
type Flags map[string]bool

// IsOIDCAuthentication checks if the "authentication.oidc" feature flag is enabled.
func (f Flags) IsOIDCAuthentication() bool {
return f[OIDCAuthentication]
}

[creydr]

Hello @Priyansurout,
this issue is done already (status Closed). You can check how @karthikmurali60 implemented it in #7183