devops-copilot 0.1.2

An AI-driven DevOps Copilot and CLI Client for managing bare-metal servers securely

DevOps Copilot 🚀

An autonomous, self-learning AI DevOps Assistant & CLI Client that manages bare-metal servers with Experiential Memory (ExpeL), Semantic Guardrails, and Real-Time SSH Tunneling.

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💡 About The Project

Managing infrastructure via traditional CLI tools or basic AI wrappers often leads to dangerous mistakes, repetitive debugging dead-ends, and fragmented server logs. DevOps Copilot redefines server management by bringing Closed-Loop Experiential Learning (ExpeL) directly to your terminal.

Unlike standard AI chat wrappers that forget previous troubleshooting sessions, DevOps Copilot builds a permanent, structured ChromaDB Vector Knowledge Base of your infrastructure:

• 🧠 Zero-Click Experiential Learning (ExpeL & Reflexion): Every time an incident or bug is diagnosed and resolved, the agent distills the entire session into a structured Postmortem (Problem, Real Cause, What didn't work, What worked). Before tackling new errors, relevant past lessons are automatically retrieved and injected into the agent's context—ensuring it never repeats a dead end.
• 🛡️ Semantic Security Guardrails: Local vector search intercepts and blocks catastrophic shell commands (e.g., rm -rf /, mkfs) before they ever touch your servers.
• 🧑‍💻 Human-in-the-Loop (HITL) Approvals: State-modifying actions dynamically prompt for explicit admin confirmation ([y/N]) inside the terminal with clean prompt synchronization.
• ⚡ Real-Time Async Execution Tunnel: Streams LLM reasoning, SSH stdout, and stderr line-by-line via resilient WebSockets with automatic reconnection and exponential backoff.
• 🔒 Zero-Trust Credential Encryption: Passwords and SSH private keys are encrypted at rest using AES-256 (Fernet).

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🏛️ System Architecture & ExpeL Loop

+-----------------------------------------------------------------------------------+
|                                 DevOps Copilot CLI                                |
|  (Typer Async Client + Real-Time WebSocket Tunnel + [y/N] Terminal Approval)      |
+-----------------------------------------------------------------------------------+
                                   |           ^
                   REST Auth/CRUD  |           | WebSocket Stream (stdout/stderr)
                                   v           |
+-----------------------------------------------------------------------------------+
|                              FastAPI Backend Server                               |
|                                                                                   |
|  +------------------------+   +-----------------------+   +--------------------+  |
|  |     Auth Module        |   |    Servers Module     |   | Guardrails Module  |  |
|  |  (JWT & AES Fernet)    |   |  (AsyncSSH Execution) |   | (Vector Blacklist) |  |
|  +------------------------+   +-----------------------+   +--------------------+  |
|                                                                                   |
|  +-----------------------------------------------------------------------------+  |
|  |                              Chat & Agent Module                            |  |
|  |   LangChain StateGraph + Zero-Click ExpeL Injection + OpenRouter LLM        |  |
|  +-----------------------------------------------------------------------------+  |
|                                       |                                           |
|                                       v                                           |
|  +-----------------------------------------------------------------------------+  |
|  |                            Knowledge Base (ChromaDB)                        |  |
|  |  [command_history]   [server_logs]   [server_configs]   [lessons_learned]   |  |
|  +-----------------------------------------------------------------------------+  |
+-----------------------------------------------------------------------------------+

The Closed-Loop Experiential Learning (ExpeL) Flow:

1. Observe & Act: Agent connects via AsyncSSH, runs non-destructive diagnostics or approved actions, and indexes outputs into command_history and server_logs.
2. Judge & Extract: When an incident is resolved, running devops-copilot lesson <session_id> triggers an automated LLM extraction (Problem, Real Cause, What didn't work, What worked) stored in lessons_learned.
3. Zero-Click Injection (Future Decision): On any future chat turn or command error, the inject_experiential_memory middleware queries lessons_learned and injects proven solutions directly into the prompt context.

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Key Features

• Experiential Learning (ExpeL / Reflexion Postmortems): Distills complex debugging sessions into structured Lessons Learned cards indexed into ChromaDB with zero-click context injection.
• Lean RAG Knowledge Base: Automatically chunks and indexes executed SSH command outputs, logs, and server configs into separate ChromaDB collections.
• Semantic Guardrails: Uses local vector search to intercept and block dangerous terminal commands.
• Human-in-the-Loop (HITL): Enforces admin approval ([y/N]) inside the terminal for any state-modifying actions.
• CLI Connection Resilience: Automatically reconnects to the WebSocket server using exponential backoff if the network drops or the server restarts.
• Real-Time Streaming: Streams LLM thoughts and active SSH stdout/stderr line-by-line using WebSockets with 30s execution timeouts.
• Encrypted Credentials: Securely encrypts passwords and SSH private keys using Fernet (AES-256).
• Server & Session CRUD: Full REST API support for updating/deleting server connections and deleting chat sessions.
• Flexible AI Models: Powered by OpenRouter (supports Llama 3, Gemini, GPT, etc.).

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📦 Quick Start (Backend Server)

1. Configure Settings

Copy the env file and populate keys:

cp .env.example .env

Make sure to add your OPENROUTER_API_KEY and a custom base64 ENCRYPTION_KEY in .env.

2. Run with Docker Compose

docker compose up -d --build

The server will boot on port 8000. Database tables and security blacklist vectors are automatically seeded on startup.

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💻 Quick Start (CLI Client)

1. Install Globally

Install the package in editable mode from your local repository root:

uv pip install -e .

2. Authenticate

Configure the server URL and log in to get your JWT access token:

devops-copilot login

3. Interactive Chat & Auto-Postmortems

Start the real-time DevOps chat session:

devops-copilot chat

Ask the agent to check stats or run actions. Approve state-modifying commands directly in the prompt.

Extract and index a structured Experiential Lesson Learned from any completed troubleshooting session:

devops-copilot lesson <session_id>