MSI Unit Test for verfied validation within Bedrock

[NathanielRose]

As a:
Operator

I want:
Verify MSI support for AKS git modules within an automated unit test

So that:
Validation of the MSI modules and integration with bedrock environments are confirmed in CI pipeline. Have a manifest that is able to communicate with key vault through pod identity and smoke test a key.

Describe the solution you'd like:

• Unit test for aks-gitops module
• Added test in Integration test pipeline

Acceptance Criteria:

• MSI support for gitops Enable MSI Support for aks-gitops module #994
• Design Document Design Document for MSI Template for verfied validation within Bedrock #1286
• MSI AKS Environment Add Managed Identity AKS Terraform Template to Bedrock Environments #1345
• MSI Unit Test | MSI Smoke Test MSI Testing for verified validation within Bedrock #1401

Tentative Additional Tasks:

• [Spike] CSI vs FlexVolume [Spike] Investigate Manage Identity AKS interoperability with CSI #1355
• Upgrade bedrock azurerm provider to 2.5
• Application Gateway + MSI AKS implementation

Additional context:
Related to:

• Enable MSI Support for aks-gitops module #995
• Invalid source path for acr module in azure-single-keyvault terraform template #612
• Implement a managed service identity (via AAD Pod Identity) based secret handling strategy #482

Does this require updates to documentation?:
No

[NathanielRose]

@erikschlegel