#!/bin/bash
# Complete installation script for Ubuntu/Debian

# Update package lists
sudo apt update

# Install curlftpfs and dependencies
sudo apt install -y curlftpfs fuse3 curl

# Install additional utilities
sudo apt install -y lftp ncftp filezilla  # Alternative FTP clients
sudo apt install -y sshfs davfs2  # Other network filesystems

# Enable FUSE for current user
sudo usermod -a -G fuse $USER

# Load FUSE module
sudo modprobe fuse

# Verify installation
curlftpfs --version

#!/bin/bash
# Installation for Red Hat based systems

# Enable EPEL repository for CentOS/RHEL
sudo yum install -y epel-release

# Install curlftpfs
sudo yum install -y curlftpfs fuse fuse-libs

# For Fedora
sudo dnf install -y curlftpfs fuse3

# Enable and start FUSE
sudo systemctl enable fuse
sudo systemctl start fuse

# Add user to fuse group
sudo usermod -a -G fuse $USER

#!/bin/bash
# Arch Linux installation

# Install from official repositories
sudo pacman -S curlftpfs fuse3

# Enable FUSE module
sudo modprobe fuse

# Add to modules-load for persistence
echo "fuse" | sudo tee /etc/modules-load.d/fuse.conf

#!/bin/bash
# Build curlftpfs from source for latest features

# Install build dependencies
sudo apt install -y build-essential libcurl4-openssl-dev \
                    libfuse3-dev libglib2.0-dev pkg-config

# Download source
git clone https://github.com/rzvncj/curlftpfs.git
cd curlftpfs

# Build and install
./autogen.sh
./configure --prefix=/usr/local
make
sudo make install

# Update library cache
sudo ldconfig

# Basic mount syntax
curlftpfs ftp://username:password@ftp.example.com /mnt/ftp

# Mount with specific directory
curlftpfs ftp://username:password@ftp.example.com/path/to/dir /mnt/ftp

# Anonymous FTP
curlftpfs ftp://ftp.example.com /mnt/ftp -o user=anonymous:anonymous@

#!/bin/bash
# Advanced FTP mounting script with options

# Configuration
FTP_HOST="ftp.example.com"
FTP_USER="username"
FTP_PASS="password"
MOUNT_POINT="/mnt/ftp"
LOG_FILE="/var/log/curlftpfs.log"

# Function to mount FTP with comprehensive options
mount_ftp_advanced() {
    local options=""
    
    # Build mount options
    options+="-o allow_other"                    # Allow other users access
    options+=" -o uid=$(id -u)"                  # Set owner UID
    options+=" -o gid=$(id -g)"                  # Set owner GID
    options+=" -o umask=0022"                    # Set file permissions
    options+=" -o nonempty"                      # Allow mounting on non-empty dir
    options+=" -o connect_timeout=30"            # Connection timeout
    options+=" -o cache_timeout=120"             # Cache timeout in seconds
    options+=" -o cache_stat_timeout=30"         # Stat cache timeout
    options+=" -o cache_dir_timeout=60"          # Directory cache timeout
    options+=" -o cache_link_timeout=60"         # Symlink cache timeout
    options+=" -o ftp_port=-"                    # Use any port for data connection
    options+=" -o custom_list='LIST -la'"        # Custom LIST command
    
    # Create mount point if needed
    sudo mkdir -p "$MOUNT_POINT"
    
    # Mount FTP
    echo "Mounting FTP: $FTP_HOST to $MOUNT_POINT"
    curlftpfs "ftp://$FTP_USER:$FTP_PASS@$FTP_HOST" "$MOUNT_POINT" $options
    
    # Verify mount
    if mountpoint -q "$MOUNT_POINT"; then
        echo "✓ FTP mounted successfully"
        df -h "$MOUNT_POINT"
    else
        echo "✗ FTP mount failed"
        return 1
    fi
}

# Execute mount
mount_ftp_advanced

#!/bin/bash
# Secure credential storage with .netrc

# Create .netrc file
cat > ~/.netrc << EOF
machine ftp.example.com
login myusername
password mypassword

machine ftp2.example.com
login user2
password pass2
EOF

# Secure the file
chmod 600 ~/.netrc

# Mount using .netrc
curlftpfs ftp://ftp.example.com /mnt/ftp -o netrc

#!/bin/bash
# Use environment variables for credentials

# Set credentials (add to ~/.bashrc for persistence)
export FTP_USER="myusername"
export FTP_PASS="mypassword"

# Mount script using environment variables
mount_ftp_env() {
    local ftp_host="$1"
    local mount_point="$2"
    
    if [[ -z "$FTP_USER" ]] || [[ -z "$FTP_PASS" ]]; then
        echo "Error: FTP_USER and FTP_PASS must be set"
        return 1
    fi
    
    curlftpfs "ftp://$FTP_USER:$FTP_PASS@$ftp_host" "$mount_point" \
              -o allow_other,uid=$(id -u),gid=$(id -g)
}

# Usage
mount_ftp_env "ftp.example.com" "/mnt/ftp"

#!/bin/bash
# Secure credential file approach

# Create credentials file
sudo tee /etc/ftp-credentials/site1.cred << EOF
username=myuser
password=mypass
host=ftp.example.com
port=21
EOF

# Secure the file
sudo chmod 600 /etc/ftp-credentials/site1.cred
sudo chown root:root /etc/ftp-credentials/site1.cred

# Mount function using credential file
mount_ftp_creds() {
    local cred_file="$1"
    local mount_point="$2"
    
    # Source credentials
    source "$cred_file"
    
    # Mount FTP
    curlftpfs "ftp://$username:$password@$host:$port" "$mount_point" \
              -o allow_other,ssl,utf8
}

# Usage
mount_ftp_creds "/etc/ftp-credentials/site1.cred" "/mnt/ftp1"

#!/bin/bash
# Enterprise FTP mount management framework

# Configuration directory
CONFIG_DIR="/etc/ftpmount"
LOG_DIR="/var/log/ftpmount"
STATE_DIR="/var/lib/ftpmount"

# Create required directories
sudo mkdir -p "$CONFIG_DIR" "$LOG_DIR" "$STATE_DIR"

# Mount configuration structure
cat > "$CONFIG_DIR/mounts.conf" << 'EOF'
# FTP Mount Configuration
# Format: name|host|user|pass|mountpoint|options

production|ftp.prod.example.com|produser|prodpass|/mnt/ftp/prod|ssl,allow_other
staging|ftp.stage.example.com|stageuser|stagepass|/mnt/ftp/stage|ssl,cache_timeout=300
backup|backup.example.com|backupuser|backuppass|/mnt/ftp/backup|ssl,utf8,cache_dir_timeout=600
EOF

# FTP mount manager class
cat > /usr/local/bin/ftp-mount-manager << 'SCRIPT'
#!/bin/bash

# FTP Mount Manager
# Manages multiple FTP mount points with monitoring

set -euo pipefail

# Configuration
CONFIG_FILE="/etc/ftpmount/mounts.conf"
LOG_FILE="/var/log/ftpmount/manager.log"
STATE_FILE="/var/lib/ftpmount/state"
HEALTH_CHECK_INTERVAL=300  # 5 minutes

# Logging function
log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG_FILE"
}

# Mount single FTP
mount_ftp() {
    local name="$1"
    local host="$2"
    local user="$3"
    local pass="$4"
    local mountpoint="$5"
    local options="${6:-}"
    
    log "Mounting $name ($host) to $mountpoint"
    
    # Create mount point
    mkdir -p "$mountpoint"
    
    # Build mount command
    local mount_cmd="curlftpfs ftp://$user:$pass@$host $mountpoint"
    
    if [[ -n "$options" ]]; then
        mount_cmd+=" -o $options"
    fi
    
    # Execute mount
    if eval "$mount_cmd" 2>&1 | tee -a "$LOG_FILE"; then
        log "✓ Successfully mounted $name"
        echo "$name|mounted|$(date +%s)" >> "$STATE_FILE"
        return 0
    else
        log "✗ Failed to mount $name"
        echo "$name|failed|$(date +%s)" >> "$STATE_FILE"
        return 1
    fi
}

# Unmount FTP
unmount_ftp() {
    local name="$1"
    local mountpoint="$2"
    
    log "Unmounting $name from $mountpoint"
    
    if fusermount -u "$mountpoint" 2>&1 | tee -a "$LOG_FILE"; then
        log "✓ Successfully unmounted $name"
        sed -i "/^$name|/d" "$STATE_FILE"
        return 0
    else
        log "✗ Failed to unmount $name"
        return 1
    fi
}

# Mount all configured FTPs
mount_all() {
    log "Starting mount all operation"
    
    while IFS='|' read -r name host user pass mountpoint options; do
        [[ "$name" =~ ^#.*$ ]] && continue  # Skip comments
        [[ -z "$name" ]] && continue        # Skip empty lines
        
        mount_ftp "$name" "$host" "$user" "$pass" "$mountpoint" "$options"
    done < "$CONFIG_FILE"
}

# Unmount all FTPs
unmount_all() {
    log "Starting unmount all operation"
    
    while IFS='|' read -r name host user pass mountpoint options; do
        [[ "$name" =~ ^#.*$ ]] && continue
        [[ -z "$name" ]] && continue
        
        if mountpoint -q "$mountpoint" 2>/dev/null; then
            unmount_ftp "$name" "$mountpoint"
        fi
    done < "$CONFIG_FILE"
}

# Check mount health
check_health() {
    local unhealthy=0
    
    log "Performing health check"
    
    while IFS='|' read -r name host user pass mountpoint options; do
        [[ "$name" =~ ^#.*$ ]] && continue
        [[ -z "$name" ]] && continue
        
        if mountpoint -q "$mountpoint" 2>/dev/null; then
            # Test mount accessibility
            if timeout 10 ls "$mountpoint" >/dev/null 2>&1; then
                log "✓ $name is healthy"
            else
                log "✗ $name is not responding"
                ((unhealthy++))
                
                # Attempt remount
                log "Attempting to remount $name"
                unmount_ftp "$name" "$mountpoint"
                sleep 2
                mount_ftp "$name" "$host" "$user" "$pass" "$mountpoint" "$options"
            fi
        else
            log "✗ $name is not mounted"
            ((unhealthy++))
            
            # Attempt mount
            mount_ftp "$name" "$host" "$user" "$pass" "$mountpoint" "$options"
        fi
    done < "$CONFIG_FILE"
    
    return $unhealthy
}

# Monitor daemon
monitor_daemon() {
    log "Starting FTP mount monitor daemon"
    
    while true; do
        check_health
        sleep "$HEALTH_CHECK_INTERVAL"
    done
}

# Status report
status_report() {
    echo "FTP Mount Status Report"
    echo "======================="
    echo ""
    
    while IFS='|' read -r name host user pass mountpoint options; do
        [[ "$name" =~ ^#.*$ ]] && continue
        [[ -z "$name" ]] && continue
        
        printf "%-20s: " "$name"
        
        if mountpoint -q "$mountpoint" 2>/dev/null; then
            local size=$(df -h "$mountpoint" 2>/dev/null | tail -1 | awk '{print $2}')
            local used=$(df -h "$mountpoint" 2>/dev/null | tail -1 | awk '{print $5}')
            echo "Mounted (Size: $size, Used: $used)"
        else
            echo "Not mounted"
        fi
    done < "$CONFIG_FILE"
}

# Performance statistics
performance_stats() {
    echo "FTP Mount Performance Statistics"
    echo "================================"
    echo ""
    
    while IFS='|' read -r name host user pass mountpoint options; do
        [[ "$name" =~ ^#.*$ ]] && continue
        [[ -z "$name" ]] && continue
        
        if mountpoint -q "$mountpoint" 2>/dev/null; then
            echo "Mount: $name"
            echo "Path: $mountpoint"
            
            # Test read performance
            echo -n "Read Speed: "
            dd if="$mountpoint/testfile" of=/dev/null bs=1M count=10 2>&1 | \
                grep -oP '\d+\.\d+ [MG]B/s' || echo "N/A"
            
            # Test write performance (if writable)
            if touch "$mountpoint/.write_test" 2>/dev/null; then
                echo -n "Write Speed: "
                dd if=/dev/zero of="$mountpoint/.write_test" bs=1M count=10 2>&1 | \
                    grep -oP '\d+\.\d+ [MG]B/s' || echo "N/A"
                rm -f "$mountpoint/.write_test"
            else
                echo "Write Speed: Read-only"
            fi
            
            echo ""
        fi
    done < "$CONFIG_FILE"
}

# Main command handler
case "${1:-}" in
    mount)
        mount_all
        ;;
    unmount)
        unmount_all
        ;;
    remount)
        unmount_all
        sleep 2
        mount_all
        ;;
    status)
        status_report
        ;;
    check)
        check_health
        ;;
    monitor)
        monitor_daemon
        ;;
    performance)
        performance_stats
        ;;
    *)
        echo "Usage: $0 {mount|unmount|remount|status|check|monitor|performance}"
        exit 1
        ;;
esac
SCRIPT

# Make executable
sudo chmod +x /usr/local/bin/ftp-mount-manager

# Create systemd service for FTP mounts
sudo tee /etc/systemd/system/ftp-mounts.service << 'EOF'
[Unit]
Description=FTP Mount Manager Service
After=network-online.target
Wants=network-online.target

[Service]
Type=forking
ExecStart=/usr/local/bin/ftp-mount-manager mount
ExecStop=/usr/local/bin/ftp-mount-manager unmount
ExecReload=/usr/local/bin/ftp-mount-manager remount
RemainAfterExit=yes
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target
EOF

# Create monitoring service
sudo tee /etc/systemd/system/ftp-mount-monitor.service << 'EOF'
[Unit]
Description=FTP Mount Monitor Daemon
After=ftp-mounts.service
Requires=ftp-mounts.service

[Service]
Type=simple
ExecStart=/usr/local/bin/ftp-mount-manager monitor
Restart=always
RestartSec=30
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target
EOF

# Enable services
sudo systemctl daemon-reload
sudo systemctl enable ftp-mounts.service
sudo systemctl enable ftp-mount-monitor.service
sudo systemctl start ftp-mounts.service
sudo systemctl start ftp-mount-monitor.service

#!/bin/bash
# FTP mount performance optimization script

# Optimize mount for different use cases
optimize_ftp_mount() {
    local mount_type="$1"  # streaming, backup, interactive
    local ftp_url="$2"
    local mount_point="$3"
    
    case "$mount_type" in
        "streaming")
            # Optimized for streaming large files
            curlftpfs "$ftp_url" "$mount_point" \
                -o cache_timeout=3600 \
                -o cache_stat_timeout=3600 \
                -o cache_dir_timeout=3600 \
                -o cache_link_timeout=3600 \
                -o ftp_port=- \
                -o tcp_nodelay \
                -o connect_timeout=60 \
                -o ssl_control \
                -o ssl_try \
                -o no_verify_hostname \
                -o no_verify_peer
            ;;
            
        "backup")
            # Optimized for backup operations
            curlftpfs "$ftp_url" "$mount_point" \
                -o cache_timeout=30 \
                -o cache_stat_timeout=30 \
                -o cache_dir_timeout=60 \
                -o direct_io \
                -o max_background=100 \
                -o congestion_threshold=100 \
                -o no_remote_lock \
                -o ssl
            ;;
            
        "interactive")
            # Optimized for interactive use
            curlftpfs "$ftp_url" "$mount_point" \
                -o cache_timeout=5 \
                -o cache_stat_timeout=2 \
                -o cache_dir_timeout=5 \
                -o max_read=65536 \
                -o ssl_try \
                -o connect_timeout=10
            ;;
            
        *)
            echo "Unknown mount type: $mount_type"
            return 1
            ;;
    esac
}

# Network buffer tuning
tune_network_buffers() {
    # Increase network buffers for better FTP performance
    sudo sysctl -w net.core.rmem_max=134217728
    sudo sysctl -w net.core.wmem_max=134217728
    sudo sysctl -w net.ipv4.tcp_rmem="4096 87380 134217728"
    sudo sysctl -w net.ipv4.tcp_wmem="4096 65536 134217728"
    
    # Make permanent
    cat | sudo tee -a /etc/sysctl.conf << EOF

# FTP performance tuning
net.core.rmem_max = 134217728
net.core.wmem_max = 134217728
net.ipv4.tcp_rmem = 4096 87380 134217728
net.ipv4.tcp_wmem = 4096 65536 134217728
EOF
}

# Parallel FTP operations
parallel_ftp_operations() {
    local mount_point="$1"
    local operation="$2"  # download, upload, sync
    
    case "$operation" in
        "download")
            # Parallel download using GNU parallel
            find "$mount_point" -type f -name "*.dat" | \
                parallel -j 4 cp {} /local/destination/
            ;;
            
        "upload")
            # Parallel upload
            find /local/source -type f -name "*.dat" | \
                parallel -j 4 cp {} "$mount_point"/
            ;;
            
        "sync")
            # Parallel sync with rsync
            rsync -av --parallel=4 /local/source/ "$mount_point"/
            ;;
    esac
}

#!/bin/bash
# Advanced connection management for FTP mounts

# Connection pool manager
cat > /usr/local/bin/ftp-connection-manager << 'SCRIPT'
#!/bin/bash

# FTP Connection Pool Manager
# Manages multiple FTP connections for load balancing

# Configuration
MAX_CONNECTIONS=10
CONNECTION_TIMEOUT=300
IDLE_TIMEOUT=60

# Connection pool array
declare -A connection_pool

# Initialize connection
init_connection() {
    local conn_id="$1"
    local ftp_url="$2"
    local mount_point="/mnt/ftp_pool/conn_$conn_id"
    
    mkdir -p "$mount_point"
    
    if curlftpfs "$ftp_url" "$mount_point" -o connect_timeout=30; then
        connection_pool[$conn_id]="active|$(date +%s)|$mount_point"
        echo "Connection $conn_id initialized"
        return 0
    else
        echo "Failed to initialize connection $conn_id"
        return 1
    fi
}

# Get least loaded connection
get_connection() {
    local least_loaded=""
    local min_load=999999
    
    for conn_id in "${!connection_pool[@]}"; do
        IFS='|' read -r status timestamp mount_point <<< "${connection_pool[$conn_id]}"
        
        if [[ "$status" == "active" ]]; then
            # Check connection load (number of open files)
            local load=$(lsof "$mount_point" 2>/dev/null | wc -l)
            
            if [[ $load -lt $min_load ]]; then
                min_load=$load
                least_loaded=$conn_id
            fi
        fi
    done
    
    echo "$least_loaded"
}

# Connection health check
check_connection_health() {
    for conn_id in "${!connection_pool[@]}"; do
        IFS='|' read -r status timestamp mount_point <<< "${connection_pool[$conn_id]}"
        
        if [[ "$status" == "active" ]]; then
            if ! mountpoint -q "$mount_point" || ! timeout 5 ls "$mount_point" >/dev/null 2>&1; then
                echo "Connection $conn_id is unhealthy, reconnecting..."
                fusermount -u "$mount_point" 2>/dev/null
                init_connection "$conn_id" "$FTP_URL"
            fi
        fi
    done
}

# Load balancer
load_balance_operation() {
    local operation="$1"
    local file="$2"
    
    local conn_id=$(get_connection)
    if [[ -z "$conn_id" ]]; then
        echo "No available connections"
        return 1
    fi
    
    IFS='|' read -r status timestamp mount_point <<< "${connection_pool[$conn_id]}"
    
    case "$operation" in
        "read")
            cat "$mount_point/$file"
            ;;
        "write")
            cat > "$mount_point/$file"
            ;;
        "list")
            ls -la "$mount_point/$file"
            ;;
    esac
}

# Initialize connection pool
for ((i=1; i<=MAX_CONNECTIONS; i++)); do
    init_connection "$i" "$FTP_URL"
done

# Main loop
while true; do
    check_connection_health
    sleep 30
done
SCRIPT

chmod +x /usr/local/bin/ftp-connection-manager

#!/bin/bash
# Secure FTPS mounting configuration

# Mount with SSL/TLS encryption
mount_ftps() {
    local host="$1"
    local user="$2"
    local pass="$3"
    local mount_point="$4"
    
    # Create mount point
    mkdir -p "$mount_point"
    
    # Mount with SSL options
    curlftpfs "ftp://$user:$pass@$host" "$mount_point" \
        -o ssl \
        -o ssl_control \
        -o ssl_try \
        -o no_verify_hostname \
        -o no_verify_peer \
        -o tlsv1_2 \
        -o cipher_list="ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256"
}

# Certificate-based authentication
mount_ftps_cert() {
    local host="$1"
    local mount_point="$2"
    local cert_file="$3"
    local key_file="$4"
    
    curlftpfs "ftps://$host" "$mount_point" \
        -o ssl \
        -o cert="$cert_file" \
        -o key="$key_file" \
        -o cacert="/etc/ssl/certs/ca-certificates.crt"
}

# Secure credential management
secure_credential_manager() {
    # Use system keyring for credentials
    local site_name="$1"
    
    # Store credentials in keyring
    echo -n "Enter FTP username: "
    read -r username
    
    echo -n "Enter FTP password: "
    read -rs password
    echo
    
    # Store in system keyring (requires libsecret-tools)
    echo "$password" | secret-tool store --label="FTP $site_name" \
        service ftp \
        username "$username" \
        host "$site_name"
    
    # Retrieve for mounting
    local stored_pass=$(secret-tool lookup service ftp host "$site_name")
    
    echo "Credentials stored securely"
}

# SELinux context management
configure_selinux_contexts() {
    local mount_point="$1"
    
    # Set appropriate SELinux context for FTP mounts
    sudo semanage fcontext -a -t public_content_rw_t "$mount_point(/.*)?"
    sudo restorecon -Rv "$mount_point"
    
    # Allow FUSE mounts in SELinux
    sudo setsebool -P allow_mount_anyfile 1
    sudo setsebool -P ftpd_use_fusefs 1
}

# Firewall configuration for FTP
configure_firewall_ftp() {
    # Allow FTP control port
    sudo firewall-cmd --permanent --add-service=ftp
    
    # Allow passive FTP ports
    sudo firewall-cmd --permanent --add-port=30000-31000/tcp
    
    # Reload firewall
    sudo firewall-cmd --reload
}

#!/bin/bash
# FTP mount access control implementation

# Create restricted FTP mount
create_restricted_mount() {
    local ftp_url="$1"
    local mount_point="$2"
    local allowed_user="$3"
    local allowed_group="$4"
    
    # Create mount point with specific permissions
    sudo mkdir -p "$mount_point"
    sudo chown "$allowed_user:$allowed_group" "$mount_point"
    sudo chmod 750 "$mount_point"
    
    # Mount with restricted access
    sudo -u "$allowed_user" curlftpfs "$ftp_url" "$mount_point" \
        -o uid=$(id -u "$allowed_user") \
        -o gid=$(id -g "$allowed_group") \
        -o umask=0027 \
        -o allow_other \
        -o default_permissions
    
    # Set ACLs for fine-grained control
    sudo setfacl -R -m u:"$allowed_user":rwx "$mount_point"
    sudo setfacl -R -m g:"$allowed_group":rx "$mount_point"
    sudo setfacl -R -m o::--- "$mount_point"
    
    # Set default ACLs for new files
    sudo setfacl -d -m u:"$allowed_user":rwx "$mount_point"
    sudo setfacl -d -m g:"$allowed_group":rx "$mount_point"
    sudo setfacl -d -m o::--- "$mount_point"
}

# Audit FTP mount access
audit_ftp_access() {
    local mount_point="$1"
    local audit_log="/var/log/ftp_mount_audit.log"
    
    # Enable audit logging
    cat > /etc/audit/rules.d/ftp-mount.rules << EOF
# Audit FTP mount access
-w $mount_point -p rwxa -k ftp_mount_access
EOF
    
    # Reload audit rules
    sudo augenrules --load
    sudo systemctl restart auditd
    
    # Monitor access in real-time
    sudo aureport -f | grep "$mount_point" | tail -20
}

# Implement mount quotas
implement_mount_quotas() {
    local mount_point="$1"
    local max_size="$2"  # e.g., "10G"
    
    # Create quota filesystem overlay
    local quota_img="/var/lib/ftp_quotas/$(basename "$mount_point").img"
    
    sudo mkdir -p /var/lib/ftp_quotas
    sudo dd if=/dev/zero of="$quota_img" bs=1 count=0 seek="$max_size"
    sudo mkfs.ext4 "$quota_img"
    
    # Mount with quota support
    local quota_mount="/mnt/quota_$(basename "$mount_point")"
    sudo mkdir -p "$quota_mount"
    sudo mount -o loop,usrquota,grpquota "$quota_img" "$quota_mount"
    
    # Set up quotas
    sudo quotacheck -cug "$quota_mount"
    sudo quotaon "$quota_mount"
    
    # Bind mount over FTP mount
    sudo mount --bind "$quota_mount" "$mount_point"
}

#!/bin/bash
# Comprehensive FTP mount troubleshooting toolkit

# Diagnostic function
diagnose_ftp_mount() {
    local mount_point="$1"
    
    echo "FTP Mount Diagnostics"
    echo "===================="
    
    # Check if mount point exists
    if [[ ! -d "$mount_point" ]]; then
        echo "✗ Mount point does not exist"
        return 1
    fi
    
    # Check if mounted
    if ! mountpoint -q "$mount_point"; then
        echo "✗ Mount point is not mounted"
        
        # Check FUSE
        if ! lsmod | grep -q fuse; then
            echo "  → FUSE module not loaded"
            echo "  → Run: sudo modprobe fuse"
        fi
        
        # Check user permissions
        if ! groups | grep -q fuse; then
            echo "  → User not in fuse group"
            echo "  → Run: sudo usermod -a -G fuse $USER"
        fi
        
        return 1
    fi
    
    echo "✓ Mount point is active"
    
    # Check accessibility
    echo -n "Checking accessibility: "
    if timeout 5 ls "$mount_point" >/dev/null 2>&1; then
        echo "✓ Accessible"
    else
        echo "✗ Not accessible"
        
        # Check network connectivity
        local ftp_host=$(mount | grep "$mount_point" | grep -oP 'ftp://[^@]+@\K[^/]+')
        if [[ -n "$ftp_host" ]]; then
            echo -n "  → Testing FTP host connectivity: "
            if nc -zv "$ftp_host" 21 -w 5 >/dev/null 2>&1; then
                echo "✓ Host reachable"
            else
                echo "✗ Host unreachable"
            fi
        fi
    fi
    
    # Check performance
    echo -n "Testing read performance: "
    local start_time=$(date +%s.%N)
    if dd if="$mount_point/testfile" of=/dev/null bs=1M count=1 >/dev/null 2>&1; then
        local end_time=$(date +%s.%N)
        local duration=$(echo "$end_time - $start_time" | bc)
        echo "✓ ${duration}s"
    else
        echo "✗ Read test failed"
    fi
    
    # Check logs
    echo ""
    echo "Recent errors in system log:"
    sudo journalctl -u ftp-mounts.service --since "10 minutes ago" | grep -i error | tail -5
}

# Fix common mount issues
fix_mount_issues() {
    local mount_point="$1"
    
    echo "Attempting to fix mount issues..."
    
    # Force unmount if hung
    if mountpoint -q "$mount_point"; then
        echo "Force unmounting..."
        sudo umount -l "$mount_point" 2>/dev/null || sudo fusermount -uz "$mount_point"
        sleep 2
    fi
    
    # Clean up mount point
    sudo rm -rf "$mount_point"/.fuse_hidden*
    
    # Reload FUSE
    sudo modprobe -r fuse
    sudo modprobe fuse
    
    # Reset permissions
    sudo chmod 755 "$mount_point"
    
    echo "✓ Cleanup complete"
}

# Performance analysis
analyze_mount_performance() {
    local mount_point="$1"
    local test_file="$mount_point/.perftest"
    
    echo "FTP Mount Performance Analysis"
    echo "=============================="
    
    # Write test
    echo "Write Test (10MB):"
    dd if=/dev/zero of="$test_file" bs=1M count=10 conv=fsync 2>&1 | grep -v records
    
    # Read test
    echo ""
    echo "Read Test (10MB):"
    dd if="$test_file" of=/dev/null bs=1M 2>&1 | grep -v records
    
    # Latency test
    echo ""
    echo "Latency Test (small file operations):"
    local start_time=$(date +%s.%N)
    for i in {1..100}; do
        touch "$mount_point/.latency_test_$i"
        rm -f "$mount_point/.latency_test_$i"
    done
    local end_time=$(date +%s.%N)
    local total_time=$(echo "$end_time - $start_time" | bc)
    local avg_time=$(echo "scale=4; $total_time / 100" | bc)
    echo "Average operation time: ${avg_time}s"
    
    # Clean up
    rm -f "$test_file"
}

# Debug mode mounting
debug_mount() {
    local ftp_url="$1"
    local mount_point="$2"
    
    echo "Mounting in debug mode..."
    
    # Enable curl verbose output
    export CURLFTPFS_DEBUG=2
    
    # Mount with debug options
    curlftpfs "$ftp_url" "$mount_point" \
        -o debug \
        -o verbose \
        -o log_level=7 \
        -f  # Run in foreground
}

#!/bin/bash
# FTP mount monitoring and alerting system

# Create monitoring script
cat > /usr/local/bin/ftp-mount-monitor << 'SCRIPT'
#!/bin/bash

# FTP Mount Monitoring System
# Monitors mount health and sends alerts

# Configuration
ALERT_EMAIL="admin@example.com"
SLACK_WEBHOOK=""
CHECK_INTERVAL=300  # 5 minutes
ALERT_THRESHOLD=3   # Number of failures before alert

# State tracking
declare -A failure_count

# Check single mount health
check_mount_health() {
    local name="$1"
    local mount_point="$2"
    
    # Check if mounted
    if ! mountpoint -q "$mount_point"; then
        return 1
    fi
    
    # Check accessibility
    if ! timeout 10 ls "$mount_point" >/dev/null 2>&1; then
        return 2
    fi
    
    # Check free space
    local usage=$(df "$mount_point" | tail -1 | awk '{print $5}' | sed 's/%//')
    if [[ $usage -gt 90 ]]; then
        return 3
    fi
    
    return 0
}

# Send alert
send_alert() {
    local name="$1"
    local mount_point="$2"
    local error_type="$3"
    
    local message="FTP Mount Alert: $name\n"
    message+="Mount Point: $mount_point\n"
    message+="Error: $error_type\n"
    message+="Time: $(date)\n"
    message+="Host: $(hostname)\n"
    
    # Email alert
    if [[ -n "$ALERT_EMAIL" ]]; then
        echo -e "$message" | mail -s "FTP Mount Alert: $name" "$ALERT_EMAIL"
    fi
    
    # Slack alert
    if [[ -n "$SLACK_WEBHOOK" ]]; then
        curl -X POST -H 'Content-type: application/json' \
            --data "{\"text\":\"$message\"}" \
            "$SLACK_WEBHOOK"
    fi
    
    # Log alert
    logger -t ftp-mount-monitor "$message"
}

# Monitor loop
monitor_loop() {
    while IFS='|' read -r name host user pass mount_point options; do
        [[ "$name" =~ ^#.*$ ]] && continue
        [[ -z "$name" ]] && continue
        
        check_mount_health "$name" "$mount_point"
        health_status=$?
        
        case $health_status in
            0)
                # Healthy - reset failure count
                failure_count[$name]=0
                ;;
            1)
                # Not mounted
                ((failure_count[$name]++))
                if [[ ${failure_count[$name]} -ge $ALERT_THRESHOLD ]]; then
                    send_alert "$name" "$mount_point" "Mount not active"
                    failure_count[$name]=0
                fi
                ;;
            2)
                # Not accessible
                ((failure_count[$name]++))
                if [[ ${failure_count[$name]} -ge $ALERT_THRESHOLD ]]; then
                    send_alert "$name" "$mount_point" "Mount not accessible"
                    failure_count[$name]=0
                fi
                ;;
            3)
                # Low space
                send_alert "$name" "$mount_point" "Low disk space (>90% used)"
                ;;
        esac
    done < /etc/ftpmount/mounts.conf
}

# Main monitoring loop
while true; do
    monitor_loop
    sleep "$CHECK_INTERVAL"
done
SCRIPT

chmod +x /usr/local/bin/ftp-mount-monitor

# Create systemd service for monitoring
sudo tee /etc/systemd/system/ftp-mount-monitor.service << 'EOF'
[Unit]
Description=FTP Mount Health Monitor
After=ftp-mounts.service

[Service]
Type=simple
ExecStart=/usr/local/bin/ftp-mount-monitor
Restart=always
RestartSec=60

[Install]
WantedBy=multi-user.target
EOF

# Enable monitoring
sudo systemctl enable ftp-mount-monitor.service
sudo systemctl start ftp-mount-monitor.service

#!/bin/bash
# Docker volume driver for FTP mounts

# Create Docker volume plugin
cat > /usr/local/bin/docker-ftp-volume-driver << 'SCRIPT'
#!/bin/bash

# Docker FTP Volume Driver
# Provides FTP mounts as Docker volumes

VOLUME_ROOT="/var/lib/docker-ftp-volumes"
CONFIG_FILE="/etc/docker-ftp/volumes.conf"

# Create volume
create_volume() {
    local volume_name="$1"
    local ftp_url="$2"
    local mount_point="$VOLUME_ROOT/$volume_name"
    
    mkdir -p "$mount_point"
    
    # Mount FTP
    curlftpfs "$ftp_url" "$mount_point" -o allow_other,uid=0,gid=0
    
    # Return mount point
    echo "$mount_point"
}

# Remove volume
remove_volume() {
    local volume_name="$1"
    local mount_point="$VOLUME_ROOT/$volume_name"
    
    fusermount -u "$mount_point"
    rmdir "$mount_point"
}

# Docker Compose example
cat > docker-compose-ftp-example.yml << 'EOF'
version: '3.8'

services:
  app:
    image: nginx:alpine
    volumes:
      - type: bind
        source: /var/lib/docker-ftp-volumes/remote-data
        target: /usr/share/nginx/html
        read_only: true
    
  ftp-mounter:
    image: alpine
    privileged: true
    command: |
      sh -c '
        apk add --no-cache curlftpfs
        mkdir -p /mnt/ftp
        curlftpfs ftp://user:pass@ftp.example.com /mnt/ftp
        tail -f /dev/null
      '
    volumes:
      - /var/lib/docker-ftp-volumes:/mnt:shared
EOF
SCRIPT

chmod +x /usr/local/bin/docker-ftp-volume-driver

# FTP PersistentVolume for Kubernetes
apiVersion: v1
kind: PersistentVolume
metadata:
  name: ftp-pv
spec:
  capacity:
    storage: 100Gi
  accessModes:
    - ReadWriteMany
  persistentVolumeReclaimPolicy: Retain
  storageClassName: ftp-storage
  flexVolume:
    driver: "example.com/ftp"
    options:
      server: "ftp.example.com"
      path: "/data"
      username: "ftpuser"
      password: "ftppass"

---
# DaemonSet for FTP mount provisioner
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: ftp-mount-provisioner
  namespace: kube-system
spec:
  selector:
    matchLabels:
      name: ftp-mount-provisioner
  template:
    metadata:
      labels:
        name: ftp-mount-provisioner
    spec:
      hostNetwork: true
      containers:
      - name: ftp-mounter
        image: alpine:latest
        securityContext:
          privileged: true
        command:
        - sh
        - -c
        - |
          apk add --no-cache curlftpfs
          mkdir -p /mnt/ftp
          curlftpfs ftp://user:pass@ftp.example.com /mnt/ftp -o allow_other
          while true; do
            sleep 3600
            if ! mountpoint -q /mnt/ftp; then
              curlftpfs ftp://user:pass@ftp.example.com /mnt/ftp -o allow_other
            fi
          done
        volumeMounts:
        - name: host-mnt
          mountPath: /mnt
          mountPropagation: Bidirectional
      volumes:
      - name: host-mnt
        hostPath:
          path: /mnt