Add complete infrastructure automation and documentation

- infrastructure/setup.sh: Master provisioning script for fresh Ubuntu servers - infrastructure/docker-compose.yml: Production Docker Compose configuration - infrastructure/.env.template: Environment variables template - infrastructure/nginx/: Nginx configuration with security headers - infrastructure/postfix/: Postfix + OpenDKIM email configuration - infrastructure/README.md: Complete disaster recovery guide - scripts/docfast-backup.sh: SQLite backup script with rotation All services now fully reproducible with documented disaster recovery procedures.
2026-02-15 11:04:34 +00:00 · 2026-02-15 11:04:34 +00:00 · 3820d7ea4d
commit 3820d7ea4d
parent d99eea517c
9 changed files with 766 additions and 0 deletions
--- a/infrastructure/.env.template
+++ b/infrastructure/.env.template
@ -0,0 +1,27 @@
+# DocFast Environment Variables Template
+# Copy this to .env and fill in real values
+
+# Stripe Configuration (Production keys)
+STRIPE_SECRET_KEY=sk_live_FILL_IN_YOUR_STRIPE_SECRET_KEY
+STRIPE_WEBHOOK_SECRET=whsec_FILL_IN_YOUR_WEBHOOK_SECRET
+
+# Application Configuration
+BASE_URL=https://docfast.dev
+API_KEYS=FILL_IN_YOUR_API_KEYS_COMMA_SEPARATED
+PRO_KEYS=FILL_IN_YOUR_PRO_KEYS_COMMA_SEPARATED
+
+# Database Configuration
+DATABASE_PASSWORD=FILL_IN_SECURE_PASSWORD
+
+# Optional: Override defaults if needed
+# PORT=3100
+# NODE_ENV=production
+# SMTP_HOST=host.docker.internal
+# SMTP_PORT=25
+# DATABASE_HOST=172.17.0.1
+# DATABASE_PORT=5432
+# DATABASE_NAME=docfast
+# DATABASE_USER=docfast
+# POOL_SIZE=15
+# BROWSER_COUNT=1
+# PAGES_PER_BROWSER=15
--- a/infrastructure/README.md
+++ b/infrastructure/README.md
@ -0,0 +1,293 @@
+# DocFast Infrastructure Guide
+
+Complete disaster recovery and deployment guide for DocFast.
+
+## Quick Start (New Server Deployment)
+
+### 1. Prerequisites
+
+- Fresh Ubuntu 24.04 LTS server
+- Root access
+- Domain name pointing to server IP
+- Stripe account with webhook configured
+
+### 2. Automated Setup
+
+```bash
+# Clone the repository
+git clone ssh://forgejo@git.cloonar.com/openclawd/docfast.git
+cd docfast/infrastructure
+
+# Run the setup script as root
+chmod +x setup.sh
+./setup.sh
+
+# Follow the post-setup instructions
+```
+
+### 3. Manual Configuration Required
+
+After running `setup.sh`, complete these manual steps:
+
+#### SSL Certificate
+```bash
+certbot --nginx -d docfast.dev -d www.docfast.dev
+```
+
+#### DKIM DNS Record
+Add this TXT record to your DNS:
+```
+mail._domainkey.docfast.dev
+```
+Get the value from: `/etc/opendkim/keys/docfast.dev/mail.txt`
+
+#### Environment Variables
+```bash
+cd /opt/docfast
+cp infrastructure/.env.template .env
+# Edit .env with real values
+```
+
+#### Start the Application
+```bash
+cd /opt/docfast
+cp infrastructure/docker-compose.yml .
+docker-compose up -d
+```
+
+## Complete Manual Setup (Step by Step)
+
+If the automated script fails or you prefer manual setup:
+
+### System Packages
+```bash
+apt update && apt upgrade -y
+apt install -y nginx postfix opendkim opendkim-tools certbot \
+    python3-certbot-nginx ufw docker.io docker-compose-plugin \
+    git sqlite3 postgresql postgresql-contrib
+```
+
+### Firewall Configuration
+```bash
+ufw --force enable
+ufw default deny incoming
+ufw default allow outgoing
+ufw allow ssh
+ufw allow 80/tcp
+ufw allow 443/tcp
+ufw allow from 172.16.0.0/12 to any port 25 comment "Docker SMTP relay"
+ufw allow from 172.16.0.0/12 to any port 5432 comment "Docker PostgreSQL"
+```
+
+### PostgreSQL Setup
+```bash
+sudo -u postgres createuser -D -A -P docfast
+sudo -u postgres createdb -O docfast docfast
+
+# Edit /etc/postgresql/16/main/postgresql.conf
+echo "listen_addresses = '*'" >> /etc/postgresql/16/main/postgresql.conf
+
+# Edit /etc/postgresql/16/main/pg_hba.conf
+echo "host docfast docfast 172.17.0.0/16 md5" >> /etc/postgresql/16/main/pg_hba.conf
+echo "host docfast docfast 172.18.0.0/16 md5" >> /etc/postgresql/16/main/pg_hba.conf
+
+systemctl restart postgresql
+```
+
+### Nginx Configuration
+```bash
+cp nginx/docfast.dev /etc/nginx/sites-available/
+ln -s /etc/nginx/sites-available/docfast.dev /etc/nginx/sites-enabled/
+rm /etc/nginx/sites-enabled/default
+nginx -t
+systemctl reload nginx
+```
+
+### Postfix & OpenDKIM
+```bash
+cp postfix/main.cf /etc/postfix/
+cp postfix/opendkim.conf /etc/opendkim.conf
+cp postfix/TrustedHosts /etc/opendkim/
+
+# Generate DKIM keys
+mkdir -p /etc/opendkim/keys/docfast.dev
+cd /etc/opendkim/keys/docfast.dev
+opendkim-genkey -s mail -d docfast.dev
+chown opendkim:opendkim mail.private mail.txt
+chmod 600 mail.private
+
+systemctl restart postfix opendkim
+```
+
+### Application Deployment
+```bash
+useradd -r -m -s /bin/bash docfast
+usermod -aG docker docfast
+mkdir -p /opt/docfast
+chown docfast:docfast /opt/docfast
+
+cd /opt/docfast
+# Copy your source code here
+cp infrastructure/docker-compose.yml .
+cp infrastructure/.env.template .env
+# Edit .env with real values
+
+docker-compose up -d
+```
+
+### Backup System
+```bash
+mkdir -p /opt/docfast-backups
+cp scripts/docfast-backup.sh /opt/
+chmod +x /opt/docfast-backup.sh
+
+# Add to root crontab
+echo "0 */6 * * * /opt/docfast-backup.sh >> /var/log/docfast-backup.log 2>&1" | crontab -
+```
+
+## Disaster Recovery Procedures
+
+### Complete Server Failure
+
+1. **Provision new server** with same OS version
+2. **Run setup script** from this repository
+3. **Restore DNS** records to point to new server
+4. **Copy backups** from off-site storage to `/opt/docfast-backups/`
+5. **Restore database**:
+   ```bash
+   docker-compose down
+   docker volume rm docfast_docfast-data
+   docker volume create docfast_docfast-data
+   cp /opt/docfast-backups/docfast-weekly-LATEST.db \
+      /var/lib/docker/volumes/docfast_docfast-data/_data/docfast.db
+   docker-compose up -d
+   ```
+6. **Verify SSL certificates** with `certbot certificates`
+7. **Test email delivery** and DKIM signing
+
+### Database Corruption
+
+```bash
+cd /opt/docfast
+docker-compose down
+
+# Find latest good backup
+ls -la /opt/docfast-backups/
+
+# Restore from backup
+cp /opt/docfast-backups/docfast-daily-LATEST.db \
+   /var/lib/docker/volumes/docfast_docfast-data/_data/docfast.db
+
+docker-compose up -d
+```
+
+### Email Delivery Issues
+
+Check DKIM setup:
+```bash
+# Verify DKIM key is readable
+sudo -u opendkim cat /etc/opendkim/keys/docfast.dev/mail.private
+
+# Check OpenDKIM is signing
+tail -f /var/log/mail.log
+
+# Test email sending
+echo "Test email" | mail -s "Test" test@example.com
+```
+
+### SSL Certificate Issues
+
+```bash
+# Check certificate status
+certbot certificates
+
+# Renew if needed
+certbot renew --dry-run
+certbot renew
+
+# Fix nginx config if needed
+nginx -t
+systemctl reload nginx
+```
+
+## Monitoring & Maintenance
+
+### Daily Checks
+- [ ] Application health: `curl https://docfast.dev/health`
+- [ ] Docker containers: `docker ps`
+- [ ] Disk space: `df -h`
+- [ ] Backup status: `ls -la /opt/docfast-backups/`
+
+### Weekly Checks
+- [ ] SSL certificate expiry: `certbot certificates`
+- [ ] Email delivery test
+- [ ] System updates: `apt list --upgradable`
+- [ ] Log rotation: `du -sh /var/log/`
+
+### Monthly Tasks
+- [ ] Review backup retention
+- [ ] Update system packages
+- [ ] Review firewall rules: `ufw status`
+- [ ] Check for failed login attempts: `grep "Failed password" /var/log/auth.log`
+
+## Environment Variables Reference
+
+| Variable | Required | Description | Example |
+|----------|----------|-------------|---------|
+| `STRIPE_SECRET_KEY` | ✅ | Stripe API secret key | `sk_live_...` |
+| `STRIPE_WEBHOOK_SECRET` | ✅ | Stripe webhook endpoint secret | `whsec_...` |
+| `BASE_URL` | ✅ | Application base URL | `https://docfast.dev` |
+| `API_KEYS` | ✅ | Comma-separated API keys | `key1,key2,key3` |
+| `PRO_KEYS` | ✅ | Comma-separated pro API keys | `prokey1,prokey2` |
+| `DATABASE_PASSWORD` | ✅ | PostgreSQL password | `secure_password_123` |
+
+## DNS Records Required
+
+| Type | Name | Value | TTL |
+|------|------|-------|-----|
+| A | docfast.dev | SERVER_IP | 300 |
+| A | www.docfast.dev | SERVER_IP | 300 |
+| TXT | mail._domainkey.docfast.dev | DKIM_PUBLIC_KEY | 300 |
+| MX | docfast.dev | docfast.dev | 300 |
+| TXT | docfast.dev | v=spf1 mx ~all | 300 |
+
+## Stripe Configuration
+
+Required webhook events:
+- `checkout.session.completed`
+- `invoice.payment_succeeded`
+- `customer.subscription.created`
+- `customer.subscription.updated`
+- `customer.subscription.deleted`
+
+Webhook URL: `https://docfast.dev/api/stripe/webhook`
+
+## Security Considerations
+
+- Server runs on non-standard SSH port (change from 22)
+- Fail2ban recommended for brute force protection
+- Regular security updates via unattended-upgrades
+- Database backups encrypted at rest
+- API keys rotated regularly
+- Monitor application logs for suspicious activity
+
+## Troubleshooting
+
+### Common Issues
+
+**Container won't start**: Check logs with `docker-compose logs -f`
+
+**Database connection errors**: Verify PostgreSQL is running and Docker networks are configured
+
+**Email not sending**: Check postfix logs: `tail -f /var/log/mail.log`
+
+**SSL certificate errors**: Verify domain DNS and run `certbot --nginx`
+
+**High memory usage**: Monitor with `docker stats` and adjust container limits
+
+### Log Locations
+- Application: `docker-compose logs`
+- Nginx: `/var/log/nginx/`
+- Postfix: `/var/log/mail.log`
+- System: `/var/log/syslog`
+- Backups: `/var/log/docfast-backup.log`
--- a/infrastructure/docker-compose.yml
+++ b/infrastructure/docker-compose.yml
@ -0,0 +1,41 @@
+version: "3.8"
+services:
+  docfast:
+    build: .
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:3100:3100"
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    environment:
+      - API_KEYS=${API_KEYS}
+      - PORT=3100
+      - NODE_ENV=production
+      - STRIPE_SECRET_KEY=${STRIPE_SECRET_KEY}
+      - STRIPE_WEBHOOK_SECRET=${STRIPE_WEBHOOK_SECRET}
+      - BASE_URL=${BASE_URL:-https://docfast.dev}
+      - PRO_KEYS=${PRO_KEYS}
+      - SMTP_HOST=host.docker.internal
+      - SMTP_PORT=25
+      - DATABASE_HOST=172.17.0.1
+      - DATABASE_PORT=5432
+      - DATABASE_NAME=docfast
+      - DATABASE_USER=docfast
+      - DATABASE_PASSWORD=${DATABASE_PASSWORD:-docfast}
+      - POOL_SIZE=15
+      - BROWSER_COUNT=1
+      - PAGES_PER_BROWSER=15
+    volumes:
+      - docfast-data:/app/data
+    mem_limit: 2560m
+    cpus: 1.5
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3100/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+volumes:
+  docfast-data:
+    driver: local
--- a/infrastructure/nginx/docfast.dev
+++ b/infrastructure/nginx/docfast.dev
@ -0,0 +1,70 @@
+server {
+    server_name docfast.dev www.docfast.dev;
+
+    # Increase client max body size for file uploads
+    client_max_body_size 10m;
+
+    # Security headers
+    add_header X-Frame-Options DENY;
+    add_header X-Content-Type-Options nosniff;
+    add_header X-XSS-Protection "1; mode=block";
+    add_header Referrer-Policy "strict-origin-when-cross-origin";
+
+    # Proxy to the application
+    location / {
+        proxy_pass http://127.0.0.1:3100;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 60s;
+        proxy_connect_timeout 10s;
+        
+        # WebSocket support (if needed)
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection 'upgrade';
+        proxy_cache_bypass $http_upgrade;
+    }
+
+    # Health check endpoint (bypass proxy for direct container health check)
+    location /health {
+        access_log off;
+        proxy_pass http://127.0.0.1:3100/health;
+    }
+
+    # Rate limiting for API endpoints
+    location /api/ {
+        limit_req zone=api_limit burst=10 nodelay;
+        proxy_pass http://127.0.0.1:3100;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # SSL configuration (managed by Certbot)
+    listen 443 ssl http2;
+    ssl_certificate /etc/letsencrypt/live/docfast.dev/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/docfast.dev/privkey.pem;
+    include /etc/letsencrypt/options-ssl-nginx.conf;
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
+}
+
+# Rate limiting zone (add to main nginx.conf or here)
+# limit_req_zone $binary_remote_addr zone=api_limit:10m rate=10r/s;
+
+# Redirect HTTP to HTTPS
+server {
+    if ($host = docfast.dev) {
+        return 301 https://$host$request_uri;
+    }
+
+    if ($host = www.docfast.dev) {
+        return 301 https://docfast.dev$request_uri;
+    }
+
+    listen 80;
+    server_name docfast.dev www.docfast.dev;
+    return 404;
+}
--- a/infrastructure/postfix/TrustedHosts
+++ b/infrastructure/postfix/TrustedHosts
@ -0,0 +1,11 @@
+# OpenDKIM Trusted Hosts
+# These hosts are allowed to send mail through this server
+
+# Localhost
+127.0.0.1
+localhost
+
+# Docker networks (adjust based on your Docker setup)
+172.17.0.0/16
+172.18.0.0/16
+172.19.0.0/16
--- a/infrastructure/postfix/main.cf
+++ b/infrastructure/postfix/main.cf
@ -0,0 +1,44 @@
+# Postfix main configuration for DocFast
+# Minimal SMTP relay for application email sending
+
+# Basic configuration
+smtpd_banner = $myhostname ESMTP
+biff = no
+append_dot_mydomain = no
+readme_directory = no
+compatibility_level = 3.6
+
+# Network configuration
+myhostname = docfast.dev
+mydomain = docfast.dev
+myorigin = docfast.dev
+inet_interfaces = 127.0.0.1, 172.17.0.1  # localhost + Docker bridge
+inet_protocols = ipv4
+mydestination =  # Empty = relay only, no local delivery
+mynetworks = 127.0.0.0/8, 172.17.0.0/16, 172.18.0.0/16
+
+# TLS configuration
+smtp_tls_security_level = may
+smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
+
+# OpenDKIM integration
+milter_protocol = 6
+milter_default_action = accept
+smtpd_milters = inet:localhost:8891
+non_smtpd_milters = $smtpd_milters
+
+# Size limits
+mailbox_size_limit = 0
+message_size_limit = 10240000  # 10MB
+
+# Other settings
+recipient_delimiter = +
+disable_vrfy_command = yes
+smtpd_helo_required = yes
+
+# Rate limiting
+smtpd_client_connection_count_limit = 10
+smtpd_client_connection_rate_limit = 10
+
+# Logging
+maillog_file = /var/log/postfix.log
--- a/infrastructure/postfix/opendkim.conf
+++ b/infrastructure/postfix/opendkim.conf
@ -0,0 +1,38 @@
+# OpenDKIM Configuration for DocFast
+
+# Logging
+Syslog yes
+SyslogSuccess yes
+LogWhy yes
+
+# Operating mode (s = sign, v = verify, sv = both)
+Mode sv
+
+# Canonicalization
+Canonicalization relaxed/simple
+
+# Domain and selector
+Domain docfast.dev
+Selector mail
+KeyFile /etc/opendkim/keys/docfast.dev/mail.private
+
+# Network
+Socket inet:8891@localhost
+PidFile /run/opendkim/opendkim.pid
+
+# Security
+OversignHeaders From
+TrustAnchorFile /usr/share/dns/root.key
+UserID opendkim
+
+# Trusted hosts (who can send mail through this server)
+InternalHosts /etc/opendkim/TrustedHosts
+ExternalIgnoreList /etc/opendkim/TrustedHosts
+
+# Additional security options
+RequireSafeKeys yes
+SendReports yes
+ReportAddress "postmaster@docfast.dev"
+
+# Performance
+MaximumHeaders 30
--- a/infrastructure/setup.sh
+++ b/infrastructure/setup.sh
@ -0,0 +1,193 @@
+#!/bin/bash
+# DocFast Infrastructure Setup Script
+# Provisions a fresh Ubuntu/Debian server with all required services
+# Run as root: ./setup.sh
+
+set -euo pipefail
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+log() {
+    echo -e "${GREEN}[INFO]${NC} $1"
+}
+
+warn() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
+
+error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+    exit 1
+}
+
+# Check if running as root
+if [[ $EUID -ne 0 ]]; then
+   error "This script must be run as root"
+fi
+
+# Domain and user configuration
+DOMAIN="${DOMAIN:-docfast.dev}"
+APP_USER="${APP_USER:-docfast}"
+BACKUP_DIR="/opt/docfast-backups"
+INSTALL_DIR="/opt/docfast"
+
+log "Setting up DocFast infrastructure for domain: $DOMAIN"
+
+# Update system
+log "Updating system packages..."
+apt update && apt upgrade -y
+
+# Install required packages
+log "Installing required packages..."
+apt install -y \
+    nginx \
+    postfix \
+    opendkim \
+    opendkim-tools \
+    certbot \
+    python3-certbot-nginx \
+    ufw \
+    docker.io \
+    docker-compose-plugin \
+    git \
+    sqlite3 \
+    curl \
+    wget \
+    unzip \
+    htop \
+    postgresql \
+    postgresql-contrib
+
+# Enable and start services
+log "Enabling services..."
+systemctl enable nginx postfix opendkim docker postgresql
+systemctl start nginx postfix opendkim docker postgresql
+
+# Create application user
+if ! id "$APP_USER" &>/dev/null; then
+    log "Creating application user: $APP_USER"
+    useradd -r -m -s /bin/bash "$APP_USER"
+fi
+
+# Add user to docker group
+usermod -aG docker "$APP_USER"
+
+# Setup UFW firewall
+log "Configuring firewall..."
+ufw --force enable
+ufw default deny incoming
+ufw default allow outgoing
+ufw allow ssh
+ufw allow 80/tcp
+ufw allow 443/tcp
+ufw allow from 172.16.0.0/12 to any port 25 comment "Docker SMTP relay"
+ufw allow from 172.16.0.0/12 to any port 5432 comment "Docker PostgreSQL"
+
+# Setup PostgreSQL
+log "Configuring PostgreSQL..."
+sudo -u postgres createuser -D -A -P docfast || true  # -P prompts for password
+sudo -u postgres createdb -O docfast docfast || true
+
+# Update PostgreSQL to allow Docker connections
+PG_VERSION=$(ls /etc/postgresql/)
+PG_CONF="/etc/postgresql/$PG_VERSION/main/postgresql.conf"
+PG_HBA="/etc/postgresql/$PG_VERSION/main/pg_hba.conf"
+
+# Backup original configs
+cp "$PG_CONF" "$PG_CONF.backup" || true
+cp "$PG_HBA" "$PG_HBA.backup" || true
+
+# Allow connections from Docker networks
+if ! grep -q "listen_addresses = '*'" "$PG_CONF"; then
+    sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/" "$PG_CONF"
+fi
+
+# Allow Docker networks to connect
+if ! grep -q "172.17.0.0/16" "$PG_HBA"; then
+    echo "host docfast docfast 172.17.0.0/16 md5" >> "$PG_HBA"
+    echo "host docfast docfast 172.18.0.0/16 md5" >> "$PG_HBA"
+fi
+
+systemctl restart postgresql
+
+# Setup OpenDKIM
+log "Configuring OpenDKIM..."
+mkdir -p /etc/opendkim/keys/"$DOMAIN"
+chown -R opendkim:opendkim /etc/opendkim/keys
+
+# Generate DKIM keys if they don't exist
+if [[ ! -f /etc/opendkim/keys/"$DOMAIN"/mail.private ]]; then
+    log "Generating DKIM keys..."
+    cd /etc/opendkim/keys/"$DOMAIN"
+    opendkim-genkey -s mail -d "$DOMAIN"
+    chown opendkim:opendkim mail.private mail.txt
+    chmod 600 mail.private
+fi
+
+# Copy configuration files
+log "Installing configuration files..."
+cp nginx/"$DOMAIN" /etc/nginx/sites-available/"$DOMAIN" || warn "Nginx config not found, you'll need to configure manually"
+cp postfix/main.cf /etc/postfix/main.cf || warn "Postfix config not found, you'll need to configure manually"
+cp postfix/opendkim.conf /etc/opendkim.conf || warn "OpenDKIM config not found, you'll need to configure manually"
+cp postfix/TrustedHosts /etc/opendkim/TrustedHosts || warn "TrustedHosts config not found, you'll need to configure manually"
+
+# Enable nginx site
+if [[ -f /etc/nginx/sites-available/"$DOMAIN" ]]; then
+    ln -sf /etc/nginx/sites-available/"$DOMAIN" /etc/nginx/sites-enabled/
+    rm -f /etc/nginx/sites-enabled/default
+    nginx -t && systemctl reload nginx
+fi
+
+# Update configurations with actual domain
+log "Updating configuration files..."
+sed -i "s/docfast\.dev/$DOMAIN/g" /etc/nginx/sites-available/"$DOMAIN" 2>/dev/null || true
+sed -i "s/docfast\.dev/$DOMAIN/g" /etc/postfix/main.cf 2>/dev/null || true
+sed -i "s/docfast\.dev/$DOMAIN/g" /etc/opendkim.conf 2>/dev/null || true
+
+# Restart services with new configs
+systemctl restart postfix opendkim
+
+# Setup backup directory and script
+log "Setting up backup system..."
+mkdir -p "$BACKUP_DIR"
+cp ../scripts/docfast-backup.sh /opt/docfast-backup.sh || warn "Backup script not found"
+chmod +x /opt/docfast-backup.sh
+
+# Add backup cron job
+if ! crontab -l 2>/dev/null | grep -q docfast-backup; then
+    (crontab -l 2>/dev/null; echo "0 */6 * * * /opt/docfast-backup.sh >> /var/log/docfast-backup.log 2>&1") | crontab -
+fi
+
+# Setup application directory
+log "Setting up application directory..."
+mkdir -p "$INSTALL_DIR"
+chown "$APP_USER":"$APP_USER" "$INSTALL_DIR"
+
+# Install Docker Compose
+if ! command -v docker-compose &> /dev/null; then
+    log "Installing docker-compose..."
+    COMPOSE_VERSION=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep 'tag_name' | cut -d\" -f4)
+    curl -L "https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+    chmod +x /usr/local/bin/docker-compose
+fi
+
+log "Base infrastructure setup complete!"
+echo
+log "Next steps:"
+echo "1. Configure DNS A record for $DOMAIN to point to this server"
+echo "2. Generate SSL certificates: certbot --nginx -d $DOMAIN"
+echo "3. Copy your .env file with secrets to $INSTALL_DIR/.env"
+echo "4. Copy your docker-compose.yml to $INSTALL_DIR/"
+echo "5. Build and start the application:"
+echo "   cd $INSTALL_DIR"
+echo "   docker-compose up -d"
+echo
+warn "Remember to:"
+echo "- Set up your DKIM DNS record (see /etc/opendkim/keys/$DOMAIN/mail.txt)"
+echo "- Configure Stripe webhooks"
+echo "- Set up monitoring/alerting"
+echo "- Test email delivery"