mirror of
https://github.com/kossakovsky/n8n-install.git
synced 2026-03-07 22:33:11 +00:00
e0018f2b2d
- move common functions to utils.sh: init_paths, read_env_var, write_env_var, is_profile_active, load_env, gen_password, gen_hex, gen_base64, generate_bcrypt_hash - add documentation headers to all installation scripts - replace duplicate code with shared utility calls - consolidate bcrypt hash generation loop in 03_generate_secrets.sh - add DEBIAN_FRONTEND save/restore helpers for whiptail scripts - standardize path initialization across all scripts
78 lines
2.6 KiB
Bash
Executable File
78 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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# =============================================================================
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# 01_system_preparation.sh - System preparation and security hardening
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# =============================================================================
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# Prepares an Ubuntu/Debian system for running Docker services:
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# - Updates system packages and installs essential CLI tools
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# - Configures UFW firewall (allows SSH, HTTP, HTTPS; denies other incoming)
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# - Enables Fail2Ban for SSH brute-force protection
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# - Sets up automatic security updates via unattended-upgrades
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# - Configures vm.max_map_count for Elasticsearch (required by RAGFlow)
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#
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# Required: Must be run as root (sudo)
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# =============================================================================
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set -e
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# Source the utilities file and initialize paths
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source "$(dirname "$0")/utils.sh"
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init_paths
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export DEBIAN_FRONTEND=noninteractive
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# System Update
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log_info "Updating package list and upgrading the system..."
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apt update -y && apt upgrade -y
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# Installing Basic Utilities
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log_info "Installing standard CLI tools..."
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apt install -y \
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htop git curl make unzip ufw fail2ban python3 psmisc whiptail \
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build-essential ca-certificates gnupg lsb-release openssl \
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debian-keyring debian-archive-keyring apt-transport-https python3-pip python3-dotenv python3-yaml
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# Configuring Firewall (UFW)
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log_info "Configuring firewall (UFW)..."
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echo "y" | ufw reset
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ufw --force enable
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ufw default deny incoming
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ufw default allow outgoing
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ufw allow ssh
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ufw allow http
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ufw allow https
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ufw reload
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ufw status
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# Configuring Fail2Ban
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log_info "Enabling brute-force protection (Fail2Ban)..."
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systemctl enable fail2ban
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sleep 1
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systemctl start fail2ban
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sleep 1
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fail2ban-client status
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sleep 1
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fail2ban-client status sshd
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# Automatic Security Updates
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log_info "Enabling automatic security updates..."
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apt install -y unattended-upgrades
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# Automatic confirmation for dpkg-reconfigure
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echo "y" | dpkg-reconfigure --priority=low unattended-upgrades
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# Configure vm.max_map_count for Elasticsearch (required for RAGFlow)
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log_info "Configuring vm.max_map_count for Elasticsearch..."
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CURRENT_VALUE=$(sysctl -n vm.max_map_count 2>/dev/null || echo "0")
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if [[ "$CURRENT_VALUE" -lt 262144 ]]; then
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log_info "Setting vm.max_map_count=262144 (current: $CURRENT_VALUE)..."
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sysctl -w vm.max_map_count=262144
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# Make it permanent
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if ! grep -q "vm.max_map_count" /etc/sysctl.conf 2>/dev/null; then
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echo "vm.max_map_count=262144" >> /etc/sysctl.conf
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log_info "Added vm.max_map_count to /etc/sysctl.conf for persistence"
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fi
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else
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log_info "vm.max_map_count already configured (current: $CURRENT_VALUE)"
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fi
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exit 0 |