222 lines
8.2 KiB
Bash
Executable File
222 lines
8.2 KiB
Bash
Executable File
#!/bin/bash
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# =============================================================================
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# Zabbix Agent 2 Installation Script for NORDABIZ-01
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# =============================================================================
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# Usage: sudo ./zabbix_agent_install.sh
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# Server: NORDABIZ-01 (10.22.68.249)
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# Zabbix Server: zabbix4norda (10.22.68.126)
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# =============================================================================
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set -e
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# Colors
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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# Configuration
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ZABBIX_SERVER="10.22.68.126"
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HOSTNAME="NORDABIZ-01"
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ZABBIX_VERSION="7.0"
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log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
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log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
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log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
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# Check if running as root
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if [[ $EUID -ne 0 ]]; then
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log_error "This script must be run as root (use sudo)"
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exit 1
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fi
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echo ""
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echo "=============================================="
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echo "Zabbix Agent 2 Installation for NORDABIZ-01"
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echo "=============================================="
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echo ""
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# Step 1: Check if already installed
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log_info "Checking existing installation..."
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if systemctl is-active --quiet zabbix-agent2 2>/dev/null; then
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log_warn "Zabbix Agent 2 is already installed and running"
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read -p "Do you want to reconfigure? (y/N) " -n 1 -r
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echo
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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exit 0
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fi
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fi
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# Step 2: Detect OS
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log_info "Detecting OS..."
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if [ -f /etc/os-release ]; then
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. /etc/os-release
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OS=$ID
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VERSION=$VERSION_ID
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log_info "Detected: $PRETTY_NAME"
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else
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log_error "Cannot detect OS"
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exit 1
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fi
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# Step 3: Install Zabbix repository
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log_info "Adding Zabbix repository..."
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case $OS in
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ubuntu)
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wget -q https://repo.zabbix.com/zabbix/${ZABBIX_VERSION}/ubuntu/pool/main/z/zabbix-release/zabbix-release_${ZABBIX_VERSION}-2+ubuntu${VERSION}_all.deb -O /tmp/zabbix-release.deb
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dpkg -i /tmp/zabbix-release.deb
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rm /tmp/zabbix-release.deb
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apt update
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;;
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debian)
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wget -q https://repo.zabbix.com/zabbix/${ZABBIX_VERSION}/debian/pool/main/z/zabbix-release/zabbix-release_${ZABBIX_VERSION}-2+debian${VERSION}_all.deb -O /tmp/zabbix-release.deb
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dpkg -i /tmp/zabbix-release.deb
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rm /tmp/zabbix-release.deb
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apt update
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;;
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*)
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log_error "Unsupported OS: $OS"
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exit 1
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;;
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esac
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# Step 4: Install Zabbix Agent 2
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log_info "Installing Zabbix Agent 2..."
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apt install -y zabbix-agent2 zabbix-agent2-plugin-postgresql
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# Step 5: Backup original config
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log_info "Backing up original configuration..."
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cp /etc/zabbix/zabbix_agent2.conf /etc/zabbix/zabbix_agent2.conf.orig
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# Step 6: Configure Zabbix Agent 2
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log_info "Configuring Zabbix Agent 2..."
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cat > /etc/zabbix/zabbix_agent2.conf << EOF
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# Zabbix Agent 2 Configuration
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# Generated by zabbix_agent_install.sh
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# Server: ${HOSTNAME}
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# === CONNECTION SETTINGS ===
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Server=${ZABBIX_SERVER}
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ServerActive=${ZABBIX_SERVER}
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Hostname=${HOSTNAME}
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ListenPort=10050
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# === LOGGING ===
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LogFile=/var/log/zabbix/zabbix_agent2.log
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LogFileSize=10
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DebugLevel=3
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# === SECURITY ===
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EnableRemoteCommands=0
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DenyKey=system.run[*]
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# === PERFORMANCE ===
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Timeout=30
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BufferSend=5
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BufferSize=100
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# === INCLUDES ===
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Include=/etc/zabbix/zabbix_agent2.d/*.conf
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EOF
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# Step 7: Create NordaBiznes custom monitoring config
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log_info "Creating NordaBiznes monitoring configuration..."
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cat > /etc/zabbix/zabbix_agent2.d/nordabiznes.conf << 'EOF'
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# ============================================
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# NordaBiznes Partner - Custom Zabbix Monitoring
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# Server: NORDABIZ-01 (10.22.68.249)
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# ============================================
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# --- FLASK APPLICATION ---
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UserParameter=nordabiznes.health,curl -s -o /dev/null -w "%{http_code}" http://localhost:5000/health 2>/dev/null | grep -q "200" && echo 1 || echo 0
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UserParameter=nordabiznes.response_time,curl -s -o /dev/null -w "%{time_total}" http://localhost:5000/health 2>/dev/null | awk '{printf "%.0f", $1*1000}'
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UserParameter=nordabiznes.workers,pgrep -f "gunicorn.*nordabiznes" | wc -l
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UserParameter=nordabiznes.service_status,systemctl is-active nordabiznes >/dev/null 2>&1 && echo 1 || echo 0
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UserParameter=nordabiznes.memory_mb,ps aux | grep -E "gunicorn.*nordabiznes|python.*app.py" | grep -v grep | awk '{sum+=$6} END {printf "%.0f", sum/1024}'
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# --- POSTGRESQL DATABASE ---
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UserParameter=postgresql.status,pg_isready -h localhost -p 5432 >/dev/null 2>&1 && echo 1 || echo 0
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UserParameter=postgresql.connections,sudo -u postgres psql -t -c "SELECT count(*) FROM pg_stat_activity WHERE datname='nordabiznes'" 2>/dev/null | tr -d ' '
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UserParameter=postgresql.db_size_mb,sudo -u postgres psql -t -c "SELECT pg_database_size('nordabiznes')/1024/1024" 2>/dev/null | tr -d ' '
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UserParameter=postgresql.longest_query_sec,sudo -u postgres psql -t -c "SELECT COALESCE(EXTRACT(EPOCH FROM (now() - query_start))::int, 0) FROM pg_stat_activity WHERE datname='nordabiznes' AND state='active' ORDER BY query_start LIMIT 1" 2>/dev/null | tr -d ' ' || echo 0
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# --- DISK USAGE ---
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UserParameter=nordabiznes.disk_usage_mb,du -sm /var/www/nordabiznes 2>/dev/null | cut -f1
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UserParameter=nordabiznes.disk_percent,df /var/www/nordabiznes 2>/dev/null | tail -1 | awk '{print $5}' | tr -d '%'
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UserParameter=nordabiznes.file_count,find /var/www/nordabiznes -type f 2>/dev/null | wc -l
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UserParameter=nordabiznes.logs_size_mb,du -sm /var/log/nordabiznes* 2>/dev/null | awk '{sum+=$1} END {print sum}' || echo 0
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# --- SYSTEM RESOURCES ---
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UserParameter=system.load1,cat /proc/loadavg | cut -d' ' -f1
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UserParameter=system.memory_percent,free | grep Mem | awk '{printf "%.1f", $3/$2 * 100}'
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UserParameter=system.swap_percent,free | grep Swap | awk '{if($2>0) printf "%.1f", $3/$2 * 100; else print 0}'
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UserParameter=system.uptime_sec,cat /proc/uptime | cut -d' ' -f1 | cut -d'.' -f1
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# --- AI CHAT METRICS ---
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UserParameter=nordabiznes.chat_messages_today,sudo -u postgres psql -t -d nordabiznes -c "SELECT COUNT(*) FROM ai_chat_messages WHERE created_at >= CURRENT_DATE" 2>/dev/null | tr -d ' ' || echo 0
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UserParameter=nordabiznes.active_conversations,sudo -u postgres psql -t -d nordabiznes -c "SELECT COUNT(DISTINCT conversation_id) FROM ai_chat_messages WHERE created_at >= NOW() - INTERVAL '24 hours'" 2>/dev/null | tr -d ' ' || echo 0
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EOF
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# Set permissions
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chown root:zabbix /etc/zabbix/zabbix_agent2.d/nordabiznes.conf
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chmod 640 /etc/zabbix/zabbix_agent2.d/nordabiznes.conf
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# Step 8: Configure sudoers for zabbix
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log_info "Configuring sudoers for Zabbix..."
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cat > /etc/sudoers.d/zabbix << 'EOF'
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# Zabbix agent permissions for NordaBiznes monitoring
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# SECURITY: Only specific commands allowed without password
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zabbix ALL=(postgres) NOPASSWD: /usr/bin/psql -t -c *
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zabbix ALL=(postgres) NOPASSWD: /usr/bin/psql -t -d nordabiznes -c *
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EOF
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chmod 440 /etc/sudoers.d/zabbix
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# Step 9: Configure firewall if UFW is active
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if command -v ufw &> /dev/null && ufw status | grep -q "Status: active"; then
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log_info "Configuring UFW firewall..."
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ufw allow from ${ZABBIX_SERVER} to any port 10050 proto tcp comment "Zabbix Server"
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fi
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# Step 10: Start and enable service
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log_info "Starting Zabbix Agent 2..."
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systemctl daemon-reload
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systemctl restart zabbix-agent2
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systemctl enable zabbix-agent2
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# Step 11: Verify installation
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echo ""
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log_info "Verifying installation..."
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echo ""
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echo "Service status:"
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systemctl status zabbix-agent2 --no-pager -l | head -15
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echo ""
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echo "Testing UserParameters:"
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echo "----------------------"
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echo -n "agent.ping: "
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zabbix_agent2 -t agent.ping 2>/dev/null || echo "FAILED"
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echo -n "nordabiznes.health: "
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zabbix_agent2 -t nordabiznes.health 2>/dev/null || echo "FAILED"
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echo -n "nordabiznes.service_status: "
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zabbix_agent2 -t nordabiznes.service_status 2>/dev/null || echo "FAILED"
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echo -n "postgresql.status: "
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zabbix_agent2 -t postgresql.status 2>/dev/null || echo "FAILED"
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echo ""
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echo "=============================================="
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log_info "Installation complete!"
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echo "=============================================="
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echo ""
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echo "Next steps:"
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echo "1. Add host in Zabbix UI: http://${ZABBIX_SERVER}/zabbix"
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echo " - Host name: ${HOSTNAME}"
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echo " - Interface: Agent 10.22.68.249:10050"
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echo " - Templates: Linux by Zabbix agent, PostgreSQL by Zabbix agent 2"
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echo ""
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echo "2. Test connection from Zabbix server:"
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echo " zabbix_get -s 10.22.68.249 -k agent.ping"
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echo ""
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