🌱 Allow ESP protocol to be set in IngressRules

[vincepri]

What type of PR is this?

What this PR does / why we need it:
/kind feature

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Checklist:

• squashed commits
• includes documentation
• adds unit tests
• adds or updates e2e tests

Release note:

NONE

[vincepri]

/assign @nrb @JoelSpeed @richardcase

[JoelSpeed]

This is required for IPSEC in OVN Kubernetes. I've tested this and it works as expected.
/lgtm

[Skarlso]

Hi.

Please include an issue that has been triaged or talked about in any way.

This is required for IPSEC in OVN Kubernetes. I've tested this and it works as expected.

Can you include any logs or screenshots of the port number being correctly configured?

Thanks.

[JoelSpeed]

This was configured in the CNI ingress rules for my AWSCluster:

This is from the status of the AWS Cluster:

This is from the AWS console showing the rules in the security group:

[Skarlso]

Thanks! :)

[Ankitasw]

Can we also add this in one of the existing E2E test to see if it works?

[vincepri]

@Ankitasw done

[vincepri]

/test ?

[vincepri]

/test pull-cluster-api-provider-aws-e2e

[JoelSpeed]

E2E looking good now
/lgtm

[vincepri]

/approve

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