Add infrastructure and application code for cloud services

This commit introduces several new files to support cloud infrastructure and application development. Key additions include:

- `azuredeploy.json`: ARM template for Azure Web App deployment.
- `eks.tf`: Terraform configuration for Amazon EKS cluster setup.
- `example.tf`: Terraform resources for Azure networking and VM creation.
- `gke.tf`: GKE cluster configuration with logging and monitoring.
- `index.js`: Utility functions for file handling in Node.js.
- `main-sample1.tf`: AWS CloudFront distribution setup.
- `mongodb.go`: MongoDB connection handling with environment variables.
- `network.tf`: Azure Application Gateway and networking resources.
- `python-routes.py`: Flask routes for querying a book database.
- `RegexDoS.aspx.cs`: Web form demonstrating a ReDoS vulnerability.
- `server.Dockerfile`: Docker setup for a Python application.
- `SqliteDbProvider.cs`: SQLite database provider implementation.
- `Util.cs`: Utility functions for process management and logging.

Author: CalinL

samples/RegexDoS.aspx.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Web;
+using System.Web.UI;
+using System.Text.RegularExpressions;
+
+namespace OWASP.WebGoat.NET
+{
+    public partial class RegexDoS : System.Web.UI.Page
+    {
+        protected void Page_Load(object sender, EventArgs e)
+        {
+
+        }
+
+        /// <summary>
+        /// Code from https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
+        /// </summary>
+        protected void btnCreate_Click(object sender, EventArgs e)
+        {
+            string userName = txtUsername.Text;
+            string password = txtPassword.Text;
+
+            Regex testPassword = new Regex(userName);
+            Match match = testPassword.Match(password);
+            if (match.Success)
+            {
+                lblError.Text = "Do not include name in password.";
+            }
+            else
+            {
+                lblError.Text = "Good password.";
+            }
+        }
+    }
+}
+