feat: Spark Streaming using Spark Operator

[lusoal]

What does this PR do?

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This will provision a stack for Spark streaming from Amazon MSK, doesn't need to be from MSK, could be replaced with Kafka in strimzi for example. The most value of the solution is showing examples of applications working in this stack using the operator and spark streaming.

Motivation

Customer requested PoC

More

• Yes, I have tested the PR using my local account setup (Provide any test evidence report under Additional Notes)
• Mandatory for new blueprints. Yes, I have added a example to support my blueprint PR
• Mandatory for new blueprints. Yes, I have updated the website/docs or website/blog section for this feature
• Yes, I ran pre-commit run -a with this PR. Link for installing pre-commit locally

For Moderators

• E2E Test successfully complete before merge?

Additional Notes

[vara-bonthu]

Nice work on this PR @lusoal ! PR looks good to me. I presume that you have tested the blueprint end to end. Please ask some of our internal teams to run through the instructions. I would also add a warning to the website doc for any security requirements that needs to be tighten if they implement this in prod.

[lusoal]

Nice work on this PR @lusoal ! PR looks good to me. I presume that you have tested the blueprint end to end. Please ask some of our internal teams to run through the instructions. I would also add a warning to the website doc for any security requirements that needs to be tighten if they implement this in prod.

Yes I tested indeed! Will ask to someone else to execute the steps. Thanks @vara-bonthu

[vara-bonthu]

lgtm