539 lines
15 KiB
Bash
539 lines
15 KiB
Bash
#!/bin/bash
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# Performance monitoring and optimization functions
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# System performance optimization
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optimize_system_performance() {
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log_info "Optimizing system performance..."
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# Memory optimization for NAS workloads
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configure_memory_optimization
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# Optimize kernel parameters
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sudo tee -a /etc/sysctl.conf > /dev/null <<EOF
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# NAS Setup Script - Performance Optimizations
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# Network performance
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net.core.rmem_max = 134217728
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net.core.wmem_max = 134217728
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net.ipv4.tcp_rmem = 4096 87380 134217728
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net.ipv4.tcp_wmem = 4096 65536 134217728
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net.ipv4.tcp_congestion_control = bbr
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# File system performance
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vm.dirty_ratio = 15
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vm.dirty_background_ratio = 5
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vm.swappiness = 10
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# Security improvements
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kernel.dmesg_restrict = 1
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kernel.kptr_restrict = 2
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net.ipv4.conf.all.send_redirects = 0
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net.ipv4.conf.default.send_redirects = 0
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net.ipv4.conf.all.accept_redirects = 0
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net.ipv4.conf.default.accept_redirects = 0
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net.ipv4.conf.all.accept_source_route = 0
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net.ipv4.conf.default.accept_source_route = 0
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net.ipv4.icmp_echo_ignore_broadcasts = 1
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net.ipv4.icmp_ignore_bogus_error_responses = 1
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EOF
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# Apply kernel parameters
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sudo sysctl -p
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# Optimize I/O scheduler for SSDs/HDDs (skip for Btrfs filesystems)
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local root_fs_type=$(findmnt -n -o fstype /)
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if [[ "$root_fs_type" == "btrfs" ]]; then
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log_info "Btrfs filesystem detected - skipping I/O scheduler optimization (Btrfs handles I/O optimization internally)"
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else
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local disk_type=$(lsblk -d -o name,rota | awk 'NR>1 {if($2==0) print "ssd"; else print "hdd"; exit}')
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local root_disk=$(lsblk -no pkname $(findmnt -n -o source / | sed 's/\[.*\]//') | head -n1)
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if [[ -n "$root_disk" ]] && [[ -w "/sys/block/$root_disk/queue/scheduler" ]]; then
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if [[ "$disk_type" == "ssd" ]]; then
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echo "mq-deadline" | sudo tee "/sys/block/$root_disk/queue/scheduler" > /dev/null
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log_info "Optimized I/O scheduler for SSD"
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else
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echo "bfq" | sudo tee "/sys/block/$root_disk/queue/scheduler" > /dev/null
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log_info "Optimized I/O scheduler for HDD"
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fi
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else
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log_warning "Could not determine or access root disk scheduler. Skipping I/O optimization."
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fi
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fi
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# Create performance monitoring script
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create_performance_monitor
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log_success "System performance optimized"
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}
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# Memory optimization for NAS workloads
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configure_memory_optimization() {
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log_info "Configuring memory optimization for NAS workloads..."
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cat << EOF | sudo tee /etc/sysctl.d/99-nas-optimization.conf
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# NAS Memory Optimization for better file caching
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vm.swappiness=10
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vm.vfs_cache_pressure=50
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EOF
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# Apply immediately
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sudo sysctl -p /etc/sysctl.d/99-nas-optimization.conf
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# Add to rollback
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add_rollback_action "sudo rm -f /etc/sysctl.d/99-nas-optimization.conf && sudo sysctl -p"
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log_success "Memory optimization configured"
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}
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# Create performance monitoring script
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create_performance_monitor() {
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sudo tee /usr/local/bin/nas-performance > /dev/null <<'EOF'
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#!/bin/bash
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# NAS Performance Monitor
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REPORT_FILE="/var/log/nas-performance.log"
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THRESHOLD_CPU=80
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THRESHOLD_MEMORY=85
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THRESHOLD_DISK=90
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check_performance() {
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local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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# CPU Usage
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local cpu_usage=$(top -bn1 | grep "Cpu(s)" | awk '{print $2}' | cut -d'%' -f1)
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# Memory Usage
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local mem_usage=$(free | awk '/^Mem:/{printf "%.1f", $3/$2 * 100}')
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# Disk Usage
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local disk_usage=$(df / | awk 'NR==2 {print $5}' | cut -d'%' -f1)
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# Network connections
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local connections=$(ss -tuln | wc -l)
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# Load average
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local load_avg=$(uptime | awk '{print $(NF-2)}' | cut -d',' -f1)
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# Log performance data
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echo "[$timestamp] CPU: ${cpu_usage}% | Memory: ${mem_usage}% | Disk: ${disk_usage}% | Connections: $connections | Load: $load_avg" >> "$REPORT_FILE"
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# Check thresholds and alert
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if (( $(echo "$cpu_usage > $THRESHOLD_CPU" | bc -l) )); then
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logger "NAS Performance Alert: High CPU usage: ${cpu_usage}%"
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fi
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if (( $(echo "$mem_usage > $THRESHOLD_MEMORY" | bc -l) )); then
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logger "NAS Performance Alert: High memory usage: ${mem_usage}%"
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fi
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if [[ $disk_usage -gt $THRESHOLD_DISK ]]; then
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logger "NAS Performance Alert: High disk usage: ${disk_usage}%"
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fi
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}
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# Main execution
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case "${1:-monitor}" in
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monitor)
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check_performance
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;;
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report)
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echo "=== NAS Performance Report ==="
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tail -20 "$REPORT_FILE"
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;;
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realtime)
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watch -n 5 '/usr/local/bin/nas-performance monitor'
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;;
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*)
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echo "Usage: $0 {monitor|report|realtime}"
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exit 1
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;;
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esac
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EOF
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sudo chmod +x /usr/local/bin/nas-performance
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# Create cron job for regular monitoring
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echo "*/5 * * * * /usr/local/bin/nas-performance monitor" | sudo crontab -
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log_success "Performance monitoring configured"
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}
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# Optimize Docker performance
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optimize_docker_performance() {
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if [[ "${INSTALL_DOCKER:-false}" != "true" ]]; then
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return 0
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fi
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log_info "Optimizing Docker performance..."
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# Create optimized Docker daemon configuration
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sudo tee /etc/docker/daemon.json > /dev/null <<EOF
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{
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"log-driver": "json-file",
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"log-opts": {
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"max-size": "10m",
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"max-file": "3"
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},
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"storage-driver": "overlay2",
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"exec-opts": ["native.cgroupdriver=systemd"],
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"live-restore": true,
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"userland-proxy": false,
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"experimental": false,
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"metrics-addr": "0.0.0.0:9323",
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"default-ulimits": {
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"nofile": {
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"Hard": 64000,
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"Name": "nofile",
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"Soft": 64000
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}
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}
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}
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EOF
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# Restart Docker to apply changes
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sudo systemctl restart docker
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# Docker cleanup script
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sudo tee /usr/local/bin/docker-cleanup > /dev/null <<'EOF'
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#!/bin/bash
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# Docker cleanup script
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echo "Starting Docker cleanup..."
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# Remove stopped containers
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docker container prune -f
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# Remove unused networks
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docker network prune -f
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# Remove unused volumes
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docker volume prune -f
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# Remove unused images
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docker image prune -a -f
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# Remove build cache
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docker builder prune -a -f
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echo "Docker cleanup completed"
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EOF
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sudo chmod +x /usr/local/bin/docker-cleanup
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# Schedule weekly Docker cleanup
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echo "0 2 * * 0 /usr/local/bin/docker-cleanup" | sudo crontab -
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log_success "Docker performance optimized"
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}
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# Optimize Samba performance
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optimize_samba_performance() {
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log_info "Optimizing Samba performance..."
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# Backup current configuration
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backup_config "$SAMBA_CONFIG"
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# Add performance optimizations to Samba config
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sudo tee -a "$SAMBA_CONFIG" > /dev/null <<EOF
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# Performance optimizations
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socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072
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read raw = yes
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write raw = yes
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max xmit = 65535
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min receivefile size = 16384
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use sendfile = yes
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aio read size = 16384
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aio write size = 16384
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aio write behind = true
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# Caching optimizations
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getwd cache = yes
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stat cache = yes
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strict locking = no
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EOF
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# Restart Samba services
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case $DISTRO in
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ubuntu|debian|fedora|arch)
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sudo systemctl restart smbd nmbd
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;;
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opensuse)
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sudo systemctl restart smb nmb
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;;
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esac
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log_success "Samba performance optimized"
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}
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# System health check
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perform_health_check() {
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log_info "Performing system health check..."
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local health_report="/tmp/nas_health_check.txt"
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{
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echo "=== NAS System Health Check Report ==="
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echo "Generated: $(date)"
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echo
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echo "=== System Information ==="
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uname -a
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uptime
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echo
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echo "=== Disk Usage ==="
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df -h
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echo
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echo "=== Memory Usage ==="
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free -h
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echo
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echo "=== Network Status ==="
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ip addr show | grep inet
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echo
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echo "=== Service Status ==="
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# Check services based on what was configured/installed
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local services_to_check=()
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# SSH services (distribution-specific)
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case $DISTRO in
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opensuse)
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services_to_check+=("sshd")
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;;
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*)
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services_to_check+=("ssh" "sshd")
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;;
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esac
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# Samba services
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if [[ "${INSTALL_SAMBA:-true}" == "true" ]]; then
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case $DISTRO in
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opensuse)
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services_to_check+=("smb" "nmb")
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;;
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*)
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services_to_check+=("smbd" "nmbd")
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;;
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esac
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fi
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# Docker
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if [[ "${INSTALL_DOCKER:-false}" == "true" ]]; then
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services_to_check+=("docker")
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fi
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# Netdata
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if [[ "${INSTALL_NETDATA:-false}" == "true" ]]; then
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services_to_check+=("netdata")
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fi
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for service in "${services_to_check[@]}"; do
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if systemctl is-active --quiet "$service" 2>/dev/null; then
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echo "✅ $service: Active"
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else
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echo "❌ $service: Inactive"
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fi
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done
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echo
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echo "=== Firewall Status ==="
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if command -v ufw &>/dev/null && ufw status | grep -q "Status: active"; then
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echo "✅ UFW: Active"
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ufw status numbered
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elif command -v firewall-cmd &>/dev/null && firewall-cmd --state &>/dev/null; then
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echo "✅ Firewalld: Active"
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firewall-cmd --list-all
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else
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echo "❌ Firewall: Not active"
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fi
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echo
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echo "=== Security Status ==="
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# Check Fail2ban if SSH was configured (which includes Fail2ban)
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if [[ "${CONFIGURE_SSH:-true}" == "true" ]]; then
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if systemctl is-active --quiet fail2ban; then
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echo "✅ Fail2ban: Active"
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else
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echo "❌ Fail2ban: Inactive"
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fi
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else
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echo "ℹ️ Fail2ban: Not configured"
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fi
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echo
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echo "=== Docker Status ==="
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if command -v docker &>/dev/null; then
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echo "✅ Docker: Installed"
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docker version --format 'Version: {{.Server.Version}}'
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echo "Containers: $(docker ps -q | wc -l) running, $(docker ps -aq | wc -l) total"
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else
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echo "ℹ️ Docker: Not installed"
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fi
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echo
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echo "=== Log Summary ==="
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echo "Recent errors in system logs:"
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journalctl --since "1 hour ago" --priority err --no-pager | tail -5
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} > "$health_report"
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cat "$health_report"
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# Save to permanent location
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sudo cp "$health_report" "/var/log/nas_health_$(date +%Y%m%d_%H%M%S).log"
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log_success "Health check completed. Report saved to /var/log/"
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}
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# Create maintenance script
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create_maintenance_script() {
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sudo tee /usr/local/bin/nas-maintenance > /dev/null <<'EOF'
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#!/bin/bash
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# NAS Maintenance Script
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LOG_FILE="/var/log/nas_maintenance.log"
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log_maintenance() {
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
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}
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case "${1:-help}" in
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update)
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log_maintenance "Starting system update..."
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# Detect distribution and update
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if command -v apt-get &>/dev/null; then
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apt-get update && apt-get upgrade -y
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elif command -v dnf &>/dev/null; then
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dnf update -y
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elif command -v pacman &>/dev/null; then
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pacman -Syu --noconfirm
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elif command -v zypper &>/dev/null; then
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zypper refresh && zypper update -y
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fi
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log_maintenance "System update completed"
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;;
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cleanup)
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log_maintenance "Starting system cleanup..."
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# Clean package cache
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if command -v apt-get &>/dev/null; then
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apt-get autoremove -y && apt-get autoclean
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elif command -v dnf &>/dev/null; then
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dnf autoremove -y && dnf clean all
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elif command -v pacman &>/dev/null; then
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pacman -Sc --noconfirm
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elif command -v zypper &>/dev/null; then
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zypper clean -a
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fi
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# Clean logs older than 30 days
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find /var/log -name "*.log" -mtime +30 -delete 2>/dev/null
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# Clean temporary files
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find /tmp -type f -mtime +7 -delete 2>/dev/null
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# Docker cleanup if installed
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if command -v docker &>/dev/null; then
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docker system prune -f
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fi
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log_maintenance "System cleanup completed"
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;;
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backup-config)
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log_maintenance "Starting configuration backup..."
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BACKUP_DIR="/var/backups/nas-config-$(date +%Y%m%d)"
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mkdir -p "$BACKUP_DIR"
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# Backup important configurations
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cp -r /etc/samba "$BACKUP_DIR/" 2>/dev/null
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cp /etc/nas_setup.conf "$BACKUP_DIR/" 2>/dev/null
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cp -r /etc/ufw "$BACKUP_DIR/" 2>/dev/null
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cp -r /etc/firewalld "$BACKUP_DIR/" 2>/dev/null
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cp /etc/ssh/sshd_config "$BACKUP_DIR/" 2>/dev/null
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tar -czf "$BACKUP_DIR.tar.gz" -C "$(dirname "$BACKUP_DIR")" "$(basename "$BACKUP_DIR")"
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rm -rf "$BACKUP_DIR"
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log_maintenance "Configuration backup created: $BACKUP_DIR.tar.gz"
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;;
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health-check)
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/usr/local/bin/nas-performance report
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;;
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restart-services)
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log_maintenance "Restarting NAS services..."
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# Samba services based on distribution
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if [[ "$DISTRO" == "opensuse" ]]; then
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samba_services="smb nmb"
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else
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samba_services="smbd nmbd"
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fi
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for service in $samba_services docker netdata; do
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if systemctl is-enabled "$service" &>/dev/null; then
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systemctl restart "$service"
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log_maintenance "Restarted $service"
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fi
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done
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log_maintenance "Service restart completed"
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;;
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full)
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log_maintenance "Starting full maintenance routine..."
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"$0" update
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"$0" cleanup
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"$0" backup-config
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"$0" restart-services
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"$0" health-check
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log_maintenance "Full maintenance completed"
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;;
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help|*)
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echo "NAS Maintenance Script"
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echo "Usage: $0 {update|cleanup|backup-config|health-check|restart-services|full|help}"
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echo
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echo "Commands:"
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echo " update Update system packages"
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echo " cleanup Clean temporary files and caches"
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echo " backup-config Backup configuration files"
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echo " health-check Display system health report"
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echo " restart-services Restart NAS services"
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echo " full Run complete maintenance routine"
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echo " help Show this help message"
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;;
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esac
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EOF
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sudo chmod +x /usr/local/bin/nas-maintenance
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# Schedule weekly maintenance
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echo "0 3 * * 1 /usr/local/bin/nas-maintenance full" | sudo crontab -
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log_success "Maintenance script created and scheduled"
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}
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# Main performance optimization function
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optimize_nas_performance() {
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log_info "=== Performance Optimization ==="
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optimize_system_performance
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optimize_docker_performance
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optimize_samba_performance
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create_maintenance_script
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log_success "NAS performance optimization completed"
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}
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