D.A.A.L (DevOps Automation Analysis Layer)

D.A.A.L is a formal static analysis engine and Language Server for Kubernetes YAML configurations. It utilizes a true compiler-design architecture:

• Front-end (JS): Lexical and Syntax Analysis
• Analysis Engine (JS): Semantic Analysis, Cycle Detection, and Security Scanning
• Optional Native Addon (C): Reserved for future performance-critical phases

Architecture

This project is built using a Client-Server Architecture:

1. D.A.A.L Server (server.js): A lightweight HTTP server that hosts the engine. It receives YAML payloads and returns diagnostics.
2. D.A.A.L Client (client-stub.js): A mock IDE extension that demonstrates how a developer's editor would interact with the server in real-time.

Setup

Prerequisites

• Node.js

Installation

npm install

Running the Server

npm run start

Running the IDE Client Stub

In another terminal:

node src/js/client-stub.js path/to/your/deployment.yaml

API

• POST /compile body: raw YAML
• response: { success: true, diagnostics: [...] }

CLI

daal path/to/file-or-folder --exit-code

VS Code Extension (Dev Mode)

• Open vscode-extension in VS Code
• Press F5 to launch an Extension Development Host

Hosting (Linux VM)

Backend as a service (systemd)

1. Install Node.js LTS on the VM
2. Copy the project folder to the VM (or clone it)
3. Create a service user:

sudo useradd -r -s /usr/sbin/nologin daal || true

4. Create a systemd unit at /etc/systemd/system/daal.service:

[Unit]
Description=D.A.A.L backend
After=network.target

[Service]
Type=simple
User=daal
WorkingDirectory=/opt/daal
Environment=PORT=3000
Environment=HOST=127.0.0.1
ExecStart=/usr/bin/node /opt/daal/src/js/server.js
Restart=always

[Install]
WantedBy=multi-user.target

5. Enable + start:

sudo systemctl daemon-reload
sudo systemctl enable --now daal
sudo systemctl status daal

If you need to access the VM from your laptop, set HOST=0.0.0.0 and put Nginx/Caddy in front for HTTPS. If a browser client needs to call it, set CORS_ORIGIN to your frontend origin.

Distribution

CLI

• Recommended: publish to npm so users can install with npm i -g <package-name>
• Alternative: zip the repository (or a minimal bundle) and share it via GitHub Releases

VS Code Extension

• For demo: run in dev mode (F5)
• For sharing: package it into a VSIX (VS Code extension package) and share the VSIX file

Optional Native Addon

npm run build