Add Azure deployment examples and enhance configuration management

- Update .gitignore to exclude Terraform files
- Enhance README with Azure deployment instructions
- Refactor publish.sh to use a container for changelog parsing
- Add Azure example files including Terraform configurations
- Create cloud-init templates for PKI and default configurations
- Implement workload VM setup for testing routing

examples/azure/versions.tf

@@ -0,0 +1,14 @@
+terraform {
+  required_version = ">= 1.9"
+
+  required_providers {
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = ">= 4.0, < 5.0"
+    }
+    http = {
+      source  = "hashicorp/http"
+      version = ">= 3.4, < 4.0"
+    }
+  }
+}