Add/eks version exporter

[samidbb]

Describe your changes

This pull request introduces a new Terraform module to automate deployment of the eks-version-exporter using GitOps practices with Flux CD which is done here dfds/platform-apps#600. The deployment is conditional, only occurring when Grafana is also deployed.

The most important changes are:

New Terraform module for EKS Version Exporter:

• Added a new eks_version_exporter module in compute/k8s-services/main.tf, which is only instantiated when Grafana is enabled. This module automates the deployment of the EKS version exporter by managing manifests via GitHub and Flux CD.

Module implementation and configuration:

• Defined required Terraform and provider versions in versions.tf to ensure compatibility, specifically with the GitHub provider.
• Declared input variables in vars.tf for cluster and repository configuration, allowing flexible use across environments.
• Added a data source in dependencies.tf to fetch the GitHub repository’s default branch and set up local variables for consistent file paths and naming.

GitOps manifest management:

• Implemented resources in main.tf to generate and manage Flux CD-compatible YAML files (app-config.yaml and kustomization.yaml) in the appropriate GitHub repo paths, enabling automated deployment and updates.
• Created template files for the necessary Kubernetes and Flux CD resources, including RBAC and Kustomization definitions, to be rendered and committed by Terraform. (values/app-config.yaml and values/kustomization.yaml) [1] [2]

Issue ticket number and link

Checklist before requesting a review

• I have tested changes in my sandbox
• I have added the needed changes in the test/integration folder to apply my changes in QA. Read the guide on adding environment variables in QA
• I have rebased the code to master (or merged in the latest from master)

Is it a new release?

• Apply a release tag release:(major|minor|patch), following semantic versioning in this guide or norelease if there is no changes to the Terraform code

[DFDS-Snyk]

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[avnes]

This looks correct to me