add: raycluster oauth mutating webhook

[VanillaSpoon]

Issue link

https://issues.redhat.com/browse/RHOAIENG-1991

What changes have been made

Add Mutating Webhook to add OAuth SideCar to RayCluster

Verification steps

Setup environment.
Build and Deploy the codeflare-operator

Ensure all configurations have been applied

From the sdk, create a raycluster

• Ensure the raycluster is deployed correctly
• Inspect the raycluster yaml to enusre the oauth configuraitons have been applied
• Inspect the raycluster head node and ensure the oauth is running alongside it.

Checks

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

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[astefanutti]

Probably the domain needs to be fixed.

[sutaakar]

Would it have sense to limit Resources for oauth container?

[VanillaSpoon]

Thanks @sutaakar
I feel this is a good idea, I'd be unsure of the limits to set, so I'll pull in @astefanutti :)

[sutaakar]

Shouldn't this be namespace: system?

[VanillaSpoon]

Yea, I'll switch this :)

[KPostOffice]

Closing, included via #530

[openshift-merge-robot]

PR needs rebase.

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