Verify az and kubectl presence before script execution

[paolosalvatori]

Motivation

This pull requests fixes #35 and by verifying az and kubectl presence before script execution.

Fixes SMF-947

Changes

This pull request adds the following checks at the beginning of the /scripts/01-system-assigned-managed-identity.sh and scripts/01-user-assigned-managed-identity.sh scripts:

#!/bin/bash

# Check prerequisites
missing=0
for tool in az kubectl; do
  if ! command -v "$tool" >/dev/null 2>&1; then
    echo "Error: required tool '$tool' is not installed or not in PATH." >&2
    missing=1
  fi
done
if [ "$missing" -ne 0 ]; then
  echo "Please install the missing tool(s) and re-run the script." >&2
  echo "  az:      https://learn.microsoft.com/cli/azure/install-azure-cli" >&2
  echo "  kubectl: https://kubernetes.io/docs/tasks/tools/ (or: az aks install-cli)" >&2
  exit 1
fi

[Copilot]

🟢 Approval recommended

Both scripts correctly fail before provisioning when required tools are unavailable and pass Bash syntax validation.

0 open findings

What changed in this PR

Adds fail-fast prerequisite checks for Azure CLI and kubectl before AKS provisioning begins.

Changes:

• Validates both required executables and reports installation guidance.
• Corrects the system-assigned script’s network selection prompt.

File	Description
scripts/​01-user-assigned-managed-identity.sh	Adds prerequisite validation.
scripts/​01-system-assigned-managed-identity.sh	Adds prerequisite validation and corrects the menu heading.

🧠 Review effort: Balanced

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