feat: Phase 6 - Docker, systemd, and installation scripts

Dockerfile

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+# Build stage
+FROM python:3.11-slim AS builder
+
+WORKDIR /app
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python dependencies
+COPY pyproject.toml .
+RUN pip install --no-cache-dir -e ".[dev]" \
+    && pip wheel --no-cache-dir --wheel-dir /app/wheels \
+    pydantic lancedb pyarrow requests watchdog typer rich numpy httpx sse-starlette fastapi uvicorn
+
+# Production stage
+FROM python:3.11-slim AS production
+
+WORKDIR /app
+
+# Install runtime dependencies
+RUN apt-get update && apt-get install -y \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy wheels and install
+COPY --from=builder /app/wheels /wheels
+RUN pip install --no-cache-dir /wheels/*
+
+# Copy application code
+COPY companion/ ./companion/
+COPY companion/forge/ ./companion/forge/
+COPY companion/indexer_daemon/ ./companion/indexer_daemon/
+COPY companion/rag/ ./companion/rag/
+
+# Create directories for data
+RUN mkdir -p /data/vectors /data/memory /models
+
+# Copy default config
+COPY config.json /app/config.json
+
+# Environment variables
+ENV PYTHONPATH=/app
+ENV COMPANION_CONFIG=/app/config.json
+ENV COMPANION_DATA_DIR=/data
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import requests; requests.get('http://localhost:7373/health')" || exit 1
+
+# API port
+EXPOSE 7373
+
+# Default command
+CMD ["python", "-m", "uvicorn", "companion.api:app", "--host", "0.0.0.0", "--port", "7373"]

Dockerfile.indexer

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+# Indexer-only Dockerfile (lightweight, no API dependencies)
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Python dependencies
+RUN pip install --no-cache-dir \
+    pydantic lancedb pyarrow requests watchdog typer rich numpy httpx
+
+# Copy application code
+COPY companion/ ./companion/
+COPY companion/indexer_daemon/ ./companion/indexer_daemon/
+COPY companion/rag/ ./companion/rag/
+
+# Create directories for data
+RUN mkdir -p /data/vectors
+
+# Copy default config
+COPY config.json /app/config.json
+
+# Environment variables
+ENV PYTHONPATH=/app
+ENV COMPANION_CONFIG=/app/config.json
+ENV COMPANION_DATA_DIR=/data
+
+# Default command (can be overridden)
+CMD ["python", "-m", "companion.indexer_daemon.cli", "index"]

docker-compose.yml

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+version: '3.8'
+
+services:
+  companion-api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      target: production
+    container_name: companion-api
+    ports:
+      - "7373:7373"
+    volumes:
+      - ./config.json:/app/config.json:ro
+      - companion-data:/data
+      - ./models:/models:ro
+    environment:
+      - COMPANION_CONFIG=/app/config.json
+      - COMPANION_DATA_DIR=/data
+    networks:
+      - companion-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "python", "-c", "import requests; requests.get('http://localhost:7373/health')"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 5s
+
+  companion-indexer:
+    build:
+      context: .
+      dockerfile: Dockerfile.indexer
+    container_name: companion-indexer
+    volumes:
+      - ./config.json:/app/config.json:ro
+      - companion-data:/data
+      - /home/san/KnowledgeVault:/vault:ro  # Mount Obsidian vault as read-only
+    environment:
+      - COMPANION_CONFIG=/app/config.json
+      - COMPANION_DATA_DIR=/data
+      - VAULT_PATH=/vault
+    networks:
+      - companion-network
+    restart: unless-stopped
+    command: ["python", "-m", "companion.indexer_daemon.watcher"]
+    # Or use CLI mode for manual sync:
+    # command: ["python", "-m", "companion.indexer_daemon.cli", "index"]
+
+  # Optional: Ollama for local embeddings and LLM
+  ollama:
+    image: ollama/ollama:latest
+    container_name: companion-ollama
+    ports:
+      - "11434:11434"
+    volumes:
+      - ollama-data:/root/.ollama
+    networks:
+      - companion-network
+    restart: unless-stopped
+    deploy:
+      resources:
+        reservations:
+          devices:
+            - driver: nvidia
+              count: 1
+              capabilities: [gpu]
+
+volumes:
+  companion-data:
+    driver: local
+  ollama-data:
+    driver: local
+
+networks:
+  companion-network:
+    driver: bridge

scripts/install.ps1

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+#!/bin/bash
+# Companion AI - Windows Installation Script
+
+Write-Host "Companion AI Installation Script for Windows"
+Write-Host "============================================="
+Write-Host ""
+
+# Check if Python is installed
+$python = Get-Command python -ErrorAction SilentlyContinue
+if (-not $python) {
+    Write-Error "Python 3 is required but not found. Please install Python 3.11 or later."
+    exit 1
+}
+
+$pythonVersion = python --version 2>&1
+Write-Host "Found: $pythonVersion"
+
+# Create directories
+$installDir = "$env:LOCALAPPDATA\Companion"
+$dataDir = "$env:LOCALAPPDATA\Companion\Data"
+
+Write-Host "Creating directories..."
+New-Item -ItemType Directory -Force -Path $installDir | Out-Null
+New-Item -ItemType Directory -Force -Path $dataDir\vectors | Out-Null
+New-Item -ItemType Directory -Force -Path $dataDir\memory | Out-Null
+New-Item -ItemType Directory -Force -Path $dataDir\models | Out-Null
+
+# Copy application files
+Write-Host "Installing Companion AI..."
+$sourceDir = $PSScriptRoot
+if (Test-Path "$sourceDir\src") {
+    Copy-Item -Recurse -Force "$sourceDir\*" $installDir
+} else {
+    Write-Error "Cannot find source files. Please run from the Companion AI directory."
+    exit 1
+}
+
+# Create virtual environment
+Write-Host "Creating Python virtual environment..."
+Set-Location $installDir
+python -m venv venv
+
+# Activate and install
+Write-Host "Installing dependencies..."
+& .\venv\Scripts\Activate.ps1
+python -m pip install --upgrade pip
+python -m pip install -e ".[dev]"
+
+# Copy config
+if (-not (Test-Path "$dataDir\config.json")) {
+    Copy-Item "$installDir\config.json" "$dataDir\config.json"
+    # Update paths
+    $config = Get-Content "$dataDir\config.json" -Raw
+    $config = $config -replace '~/.companion', $dataDir.Replace('\', '/')
+    Set-Content "$dataDir\config.json" $config
+}
+
+# Create startup scripts
+Write-Host "Creating startup scripts..."
+
+# API server startup script
+$apiScript = @"
+@echo off
+set PYTHONPATH=$($installDir)
+set COMPANION_CONFIG=$($dataDir)\config.json
+set COMPANION_DATA_DIR=$($dataDir)
+cd "$($installDir)"
+.\venv\Scripts\python -m uvicorn companion.api:app --host 0.0.0.0 --port 7373
+"@
+Set-Content "$installDir\start-api.bat" $apiScript
+
+# Indexer watcher startup script
+$indexerScript = @"
+@echo off
+set PYTHONPATH=$($installDir)
+set COMPANION_CONFIG=$($dataDir)\config.json
+set COMPANION_DATA_DIR=$($dataDir)
+cd "$($installDir)"
+.\venv\Scripts\python -m companion.indexer_daemon.watcher
+"@
+Set-Content "$installDir\start-indexer.bat" $indexerScript
+
+# CLI shortcut
+$cliScript = @"
+@echo off
+set PYTHONPATH=$($installDir)
+set COMPANION_CONFIG=$($dataDir)\config.json
+set COMPANION_DATA_DIR=$($dataDir)
+cd "$($installDir)"
+.\venv\Scripts\python -m companion.indexer_daemon.cli %*
+"@
+Set-Content "$installDir\companion.bat" $cliScript
+
+Write-Host ""
+Write-Host "Installation complete!"
+Write-Host "====================="
+Write-Host ""
+Write-Host "To start the API server:"
+Write-Host "  $installDir\start-api.bat"
+Write-Host ""
+Write-Host "To start the file watcher (auto-indexing):"
+Write-Host "  $installDir\start-indexer.bat"
+Write-Host ""
+Write-Host "To run a manual index:"
+Write-Host "  $installDir\companion.bat index"
+Write-Host ""
+Write-Host "Config location: $dataDir\config.json"
+Write-Host "Data location: $dataDir"
+Write-Host ""
+Write-Host "Edit the config to set your vault path, then start the services."

scripts/install.sh

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+#!/bin/bash
+# Companion AI Installation Script for Linux
+
+set -e
+
+# Configuration
+INSTALL_DIR="/opt/companion"
+DATA_DIR="/var/lib/companion"
+USER="companion"
+SERVICE_USER="${USER}"
+REPO_URL="https://github.com/santhoshjan/companion.git"
+
+echo "Companion AI Installation Script"
+echo "================================"
+echo ""
+
+# Check if running as root
+if [ "$EUID" -ne 0 ]; then 
+    echo "Please run as root (use sudo)"
+    exit 1
+fi
+
+# Check dependencies
+echo "Checking dependencies..."
+if ! command -v python3 &> /dev/null; then
+    echo "Python 3 is required but not installed. Aborting."
+    exit 1
+fi
+
+if ! command -v pip3 &> /dev/null; then
+    echo "pip3 is required but not installed. Installing..."
+    apt-get update && apt-get install -y python3-pip
+fi
+
+# Create user
+echo "Creating companion user..."
+if ! id "$USER" &>/dev/null; then
+    useradd -r -s /bin/false -d "$INSTALL_DIR" "$USER"
+fi
+
+# Create directories
+echo "Creating directories..."
+mkdir -p "$INSTALL_DIR"
+mkdir -p "$DATA_DIR"/{vectors,memory,models}
+mkdir -p /etc/companion
+
+# Install application
+echo "Installing Companion AI..."
+if [ -d ".git" ]; then
+    # Running from git repo
+    cp -r . "$INSTALL_DIR/"
+else
+    # Clone from remote
+    git clone "$REPO_URL" "$INSTALL_DIR"
+fi
+
+# Create virtual environment
+echo "Creating Python virtual environment..."
+cd "$INSTALL_DIR"
+python3 -m venv venv
+source venv/bin/activate
+pip install --upgrade pip
+pip install -e ".[dev]"
+
+# Set permissions
+echo "Setting permissions..."
+chown -R "$USER:$USER" "$INSTALL_DIR"
+chown -R "$USER:$USER" "$DATA_DIR"
+
+# Install systemd services
+echo "Installing systemd services..."
+if command -v systemctl &> /dev/null; then
+    cp systemd/companion-api.service /etc/systemd/system/
+    cp systemd/companion-indexer.service /etc/systemd/system/
+    cp systemd/companion-index@.service /etc/systemd/system/
+    cp systemd/companion-index.timer /etc/systemd/system/ 2>/dev/null || true
+    
+    systemctl daemon-reload
+    
+    echo ""
+    echo "Services installed. To start:"
+    echo "  sudo systemctl enable companion-api"
+    echo "  sudo systemctl start companion-api"
+    echo ""
+    echo "For auto-indexing:"
+    echo "  sudo systemctl enable companion-indexer"
+    echo "  sudo systemctl start companion-indexer"
+else
+    echo "systemd not found. Manual setup required."
+fi
+
+# Create config if doesn't exist
+if [ ! -f /etc/companion/config.json ]; then
+    echo "Creating default configuration..."
+    cp "$INSTALL_DIR/config.json" /etc/companion/config.json
+    # Update paths in config
+    sed -i "s|~/.companion|$DATA_DIR|g" /etc/companion/config.json
+fi
+
+# Create symlink for CLI
+echo "Installing CLI..."
+ln -sf "$INSTALL_DIR/venv/bin/companion" /usr/local/bin/companion 2>/dev/null || true
+
+echo ""
+echo "Installation complete!"
+echo "======================"
+echo ""
+echo "Next steps:"
+echo "1. Edit configuration: sudo nano /etc/companion/config.json"
+echo "2. Update vault path in the config"
+echo "3. Start services: sudo systemctl start companion-api companion-indexer"
+echo "4. Check status: sudo systemctl status companion-api"
+echo ""
+echo "Data directory: $DATA_DIR"
+echo "Config directory: /etc/companion"
+echo "Install directory: $INSTALL_DIR"

systemd/companion-api.service

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+[Unit]
+Description=Companion AI API Service
+Documentation=https://github.com/santhoshjan/companion
+After=network.target ollama.service
+Wants=ollama.service
+
+[Service]
+Type=simple
+User=companion
+Group=companion
+WorkingDirectory=/opt/companion
+Environment=PYTHONPATH=/opt/companion
+Environment=COMPANION_CONFIG=/opt/companion/config.json
+Environment=COMPANION_DATA_DIR=/var/lib/companion
+
+# Start the API server
+ExecStart=/opt/companion/venv/bin/python -m uvicorn companion.api:app --host 0.0.0.0 --port 7373
+
+# Restart on failure
+Restart=on-failure
+RestartSec=5
+
+# Resource limits
+MemoryMax=2G
+CPUQuota=200%
+
+# Security hardening
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/var/lib/companion
+
+[Install]
+WantedBy=multi-user.target

systemd/companion-index.timer

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+[Unit]
+Description=Companion AI Daily Full Index
+Documentation=https://github.com/santhoshjan/companion
+
+[Timer]
+OnCalendar=daily
+OnCalendar=*-*-* 03:00:00
+Persistent=true
+
+[Install]
+WantedBy=timers.target

systemd/companion-index@.service

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+[Unit]
+Description=Companion AI Full Index (One-shot)
+Documentation=https://github.com/santhoshjan/companion
+
+[Service]
+Type=oneshot
+User=companion
+Group=companion
+WorkingDirectory=/opt/companion
+Environment=PYTHONPATH=/opt/companion
+Environment=COMPANION_CONFIG=/opt/companion/config.json
+Environment=COMPANION_DATA_DIR=/var/lib/companion
+
+# Run full index
+ExecStart=/opt/companion/venv/bin/python -m companion.indexer_daemon.cli index
+
+# Security hardening
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/var/lib/companion

systemd/companion-indexer.service

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+[Unit]
+Description=Companion AI Vault Indexer
+Documentation=https://github.com/santhoshjan/companion
+After=network.target companion-api.service
+Wants=companion-api.service
+
+[Service]
+Type=simple
+User=companion
+Group=companion
+WorkingDirectory=/opt/companion
+Environment=PYTHONPATH=/opt/companion
+Environment=COMPANION_CONFIG=/opt/companion/config.json
+Environment=COMPANION_DATA_DIR=/var/lib/companion
+
+# Start the file watcher for auto-sync
+ExecStart=/opt/companion/venv/bin/python -m companion.indexer_daemon.watcher
+
+# Or use the CLI for scheduled sync (uncomment to use):
+# ExecStart=/opt/companion/venv/bin/python -m companion.indexer_daemon.cli sync
+
+# Restart on failure
+Restart=on-failure
+RestartSec=10
+
+# Resource limits
+MemoryMax=1G
+CPUQuota=100%
+
+# Security hardening
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadWritePaths=/var/lib/companion
+
+[Install]
+WantedBy=multi-user.target