Make ray image parameter as optional

[ChughShilpa]

Issue link

https://issues.redhat.com/browse/RHOAIENG-10006

What changes have been made

With the new UBI9 based ray runtime image quay.io/rhoai/ray:2.23.0-py39-cu121 used as default in codeflare-sdk raycluster-configuration, updating references of image parameter as optional in

• ClusterConfiguration docs
• demo-notebooks

Verification steps

1. Clone the repository with git clone https://github.com/ChughShilpa/codeflare-sdk
2. Checkout this PR's branch "image_parameter"
3. Run any demo-notebooks

Checks

• I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • Manual tests
  • Testing is not required for this change

[Bobbins228]

/hold
This lgtm its just we need to hold it until after release when the new SDK version includes the optional image parameter.

[KPostOffice]

Small nit

[astefanutti]

/lgtm

@Bobbins228 if I understand your concern correctly, I think we should rather move users away from relying on the main branch, rather than holding changes?

[Bobbins228]

@astefanutti That is a great idea!
We could have the notebooks branch which has the pre-release notebooks and when we release we can sync it with the main branch.

I did have concerns about what this current flow would be like in terms of getting source code of a specific release only to find the notebooks are outdated.

Huge +1 on this. We might need to coordinate with docs when we go through with it.

[sutaakar]

thinking, would it have sense to reference users to use tags for sample notebooks?

[Bobbins228]

Im happy for this to be merged after rebasing when #605 is merged

[astefanutti]

/unhold

#605 has been merged.

[astefanutti]

/lgtm

[astefanutti]

/approve

[Bobbins228]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: astefanutti, Bobbins228

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [Bobbins228,astefanutti]

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