[rhoai] configuring KnativeServing to allow zero initial scale when installed

[openshift-cherrypick-robot]

This is an automated cherry-pick of #1774

/assign grdryn

Summary by Sourcery

Enhancements:

• Enable zero initial scale configuration in Knative Serving, allowing services to start with zero pods initially

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request configures Knative Serving to allow zero initial scale when installed by setting allow-zero-initial-scale to true in the autoscaler config.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Enabled zero initial scale for Knative Serving.	Set allow-zero-initial-scale to true in the autoscaler config.	internal/controller/components/kserve/resources/serving-install/knative-serving.tmpl.yaml

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[openshift-ci]

Hi @openshift-cherrypick-robot. Thanks for your PR.

I'm waiting for a opendatahub-io 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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[sourcery-ai]

Hey @openshift-cherrypick-robot - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider adding a comment explaining why allow-zero-initial-scale is being enabled.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[grdryn]

/ok-to-test

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: grdryn

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Details

Needs approval from an approver in each of these files:

• OWNERS [grdryn]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 27.12%. Comparing base (a65c3fb) to head (113988a).
Report is 1 commits behind head on rhoai.

Additional details and impacted files

@@           Coverage Diff           @@
##            rhoai    #1877   +/-   ##
=======================================
  Coverage   27.12%   27.12%           
=======================================
  Files         172      172           
  Lines       11888    11888           
=======================================
  Hits         3225     3225           
  Misses       8358     8358           
  Partials      305      305           

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