ProxmoxVE/misc/config-file.func

config_file() {
  CONFIG_FILE="/opt/community-scripts/.settings"

  if [[ -f "/opt/community-scripts/${NSAPP}.conf" ]]; then
    CONFIG_FILE="/opt/community-scripts/${NSAPP}.conf"
  fi

  if CONFIG_FILE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set absolute path to config file" 8 58 "$CONFIG_FILE" --title "CONFIG FILE" 3>&1 1>&2 2>&3); then
    if [[ ! -f "$CONFIG_FILE" ]]; then
      echo -e "${CROSS}${RD}Config file not found, exiting script!.${CL}"
      exit
    else
      echo -e "${INFO}${BOLD}${DGN}Using config File: ${BGN}$CONFIG_FILE${CL}"
      source "$CONFIG_FILE"
    fi
  fi
  if [[ -n "${CT_ID-}" ]]; then
    if [[ "$CT_ID" =~ ^([0-9]{3,4})-([0-9]{3,4})$ ]]; then
      MIN_ID=${BASH_REMATCH[1]}
      MAX_ID=${BASH_REMATCH[2]}
      if ((MIN_ID >= MAX_ID)); then
        msg_error "Invalid Container ID range. The first number must be smaller than the second number, was ${CT_ID}"
        exit
      fi

      LIST_OF_IDS=$(pvesh get /cluster/resources --type vm --output-format json 2>/dev/null | grep -oP '"vmid":\s*\K\d+') || true
      if [[ -n "$LIST_OF_IDS" ]]; then
        for ((ID = MIN_ID; ID <= MAX_ID; ID++)); do
          if ! grep -q "^$ID$" <<<"$LIST_OF_IDS"; then
            CT_ID=$ID
            break
          fi
        done
      fi
      echo -e "${CONTAINERID}${BOLD}${DGN}Container ID: ${BGN}$CT_ID${CL}"

    elif [[ "$CT_ID" =~ ^[0-9]+$ ]]; then
      LIST_OF_IDS=$(pvesh get /cluster/resources --type vm --output-format json 2>/dev/null | grep -oP '"vmid":\s*\K\d+') || true
      if [[ -n "$LIST_OF_IDS" ]]; then

        if ! grep -q "^$CT_ID$" <<<"$LIST_OF_IDS"; then
          echo -e "${CONTAINERID}${BOLD}${DGN}Container ID: ${BGN}$CT_ID${CL}"
        else
          msg_error "Container ID $CT_ID already exists"
          exit
        fi
      else
        echo -e "${CONTAINERID}${BOLD}${DGN}Container ID: ${BGN}$CT_ID${CL}"
      fi
    else
      msg_error "Invalid Container ID format. Needs to be 0000-9999 or 0-9999, was ${CT_ID}"
      exit
    fi
  else
    if CT_ID=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Container ID" 8 58 "$NEXTID" --title "CONTAINER ID" 3>&1 1>&2 2>&3); then
      if [ -z "$CT_ID" ]; then
        CT_ID="$NEXTID"
        echo -e "${CONTAINERID}${BOLD}${DGN}Container ID: ${BGN}$CT_ID${CL}"
      else
        echo -e "${CONTAINERID}${BOLD}${DGN}Container ID: ${BGN}$CT_ID${CL}"
      fi
    else
      exit_script
    fi

  fi
  if [[ -n "${CT_TYPE-}" ]]; then
    if [[ "$CT_TYPE" -eq 0 ]]; then
      CT_TYPE_DESC="Privileged"
    elif [[ "$CT_TYPE" -eq 1 ]]; then
      CT_TYPE_DESC="Unprivileged"
    else
      msg_error "Unknown setting for CT_TYPE, should be 1 or 0, was ${CT_TYPE}"
      exit
    fi
    echo -e "${CONTAINERTYPE}${BOLD}${DGN}Container Type: ${BGN}$CT_TYPE_DESC${CL}"
  else
    if CT_TYPE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "CONTAINER TYPE" --radiolist "Choose Type" 10 58 2 \
      "1" "Unprivileged" ON \
      "0" "Privileged" OFF \
      3>&1 1>&2 2>&3); then
      if [ -n "$CT_TYPE" ]; then
        CT_TYPE_DESC="Unprivileged"
        if [ "$CT_TYPE" -eq 0 ]; then
          CT_TYPE_DESC="Privileged"
        fi
        echo -e "${CONTAINERTYPE}${BOLD}${DGN}Container Type: ${BGN}$CT_TYPE_DESC${CL}"
      fi
    else
      exit_script
    fi
  fi

  if [[ -n "${PW-}" ]]; then
    if [[ "$PW" == "none" ]]; then
      PW=""
    else
      if [[ "$PW" == *" "* ]]; then
        msg_error "Password cannot be empty"
        exit
      elif [[ ${#PW} -lt 5 ]]; then
        msg_error "Password must be at least 5 characters long"
        exit
      else
        echo -e "${VERIFYPW}${BOLD}${DGN}Root Password: ${BGN}********${CL}"
      fi
      PW="-password $PW"
    fi
  else
    while true; do
      if PW1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --passwordbox "\nSet Root Password (needed for root ssh access)" 9 58 --title "PASSWORD (leave blank for automatic login)" 3>&1 1>&2 2>&3); then
        if [[ -n "$PW1" ]]; then
          if [[ "$PW1" == *" "* ]]; then
            whiptail --msgbox "Password cannot contain spaces. Please try again." 8 58
          elif [ ${#PW1} -lt 5 ]; then
            whiptail --msgbox "Password must be at least 5 characters long. Please try again." 8 58
          else
            if PW2=$(whiptail --backtitle "Proxmox VE Helper Scripts" --passwordbox "\nVerify Root Password" 9 58 --title "PASSWORD VERIFICATION" 3>&1 1>&2 2>&3); then
              if [[ "$PW1" == "$PW2" ]]; then
                PW="-password $PW1"
                echo -e "${VERIFYPW}${BOLD}${DGN}Root Password: ${BGN}********${CL}"
                break
              else
                whiptail --msgbox "Passwords do not match. Please try again." 8 58
              fi
            else
              exit_script
            fi
          fi
        else
          PW1="Automatic Login"
          PW=""
          echo -e "${VERIFYPW}${BOLD}${DGN}Root Password: ${BGN}$PW1${CL}"
          break
        fi
      else
        exit_script
      fi
    done
  fi

  if [[ -n "${HN-}" ]]; then
    echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
  else
    if CT_NAME=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Hostname" 8 58 "$NSAPP" --title "HOSTNAME" 3>&1 1>&2 2>&3); then
      if [ -z "$CT_NAME" ]; then
        HN="$NSAPP"
      else
        HN=$(echo "${CT_NAME,,}" | tr -d ' ')
      fi
      echo -e "${HOSTNAME}${BOLD}${DGN}Hostname: ${BGN}$HN${CL}"
    else
      exit_script
    fi
  fi

  if [[ -n "${DISK_SIZE-}" ]]; then
    if [[ "$DISK_SIZE" =~ ^-?[0-9]+$ ]]; then
      echo -e "${DISKSIZE}${BOLD}${DGN}Disk Size: ${BGN}${DISK_SIZE} GB${CL}"
    else
      msg_error "DISK_SIZE must be an integer, was ${DISK_SIZE}"
      exit
    fi
  else
    if DISK_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Disk Size in GB" 8 58 "$var_disk" --title "DISK SIZE" 3>&1 1>&2 2>&3); then
      if [ -z "$DISK_SIZE" ]; then
        DISK_SIZE="$var_disk"
        echo -e "${DISKSIZE}${BOLD}${DGN}Disk Size: ${BGN}${DISK_SIZE} GB${CL}"
      else
        if ! [[ $DISK_SIZE =~ $INTEGER ]]; then
          echo -e "{INFO}${HOLD}${RD} DISK SIZE MUST BE AN INTEGER NUMBER!${CL}"
          advanced_settings
        fi
        echo -e "${DISKSIZE}${BOLD}${DGN}Disk Size: ${BGN}${DISK_SIZE} GB${CL}"
      fi
    else
      exit_script
    fi
  fi

  if [[ -n "${CORE_COUNT-}" ]]; then
    if [[ "$CORE_COUNT" =~ ^-?[0-9]+$ ]]; then
      echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}${CORE_COUNT}${CL}"
    else
      msg_error "CORE_COUNT must be an integer, was ${CORE_COUNT}"
      exit
    fi
  else
    if CORE_COUNT=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate CPU Cores" 8 58 "$var_cpu" --title "CORE COUNT" 3>&1 1>&2 2>&3); then
      if [ -z "$CORE_COUNT" ]; then
        CORE_COUNT="$var_cpu"
        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
      else
        echo -e "${CPUCORE}${BOLD}${DGN}CPU Cores: ${BGN}$CORE_COUNT${CL}"
      fi
    else
      exit_script
    fi
  fi

  if [[ -n "${RAM_SIZE-}" ]]; then
    if [[ "$RAM_SIZE" =~ ^-?[0-9]+$ ]]; then
      echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}${RAM_SIZE} MiB${CL}"
    else
      msg_error "RAM_SIZE must be an integer, was ${RAM_SIZE}"
      exit
    fi
  else
    if RAM_SIZE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Allocate RAM in MiB" 8 58 "$var_ram" --title "RAM" 3>&1 1>&2 2>&3); then
      if [ -z "$RAM_SIZE" ]; then
        RAM_SIZE="$var_ram"
        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}${RAM_SIZE} MiB${CL}"
      else
        echo -e "${RAMSIZE}${BOLD}${DGN}RAM Size: ${BGN}${RAM_SIZE} MiB${CL}"
      fi
    else
      exit_script
    fi
  fi

  IFACE_FILEPATH_LIST="/etc/network/interfaces"$'\n'$(find "/etc/network/interfaces.d/" -type f)
  BRIDGES=""
  OLD_IFS=$IFS
  IFS=$'\n'

  for iface_filepath in ${IFACE_FILEPATH_LIST}; do

    iface_indexes_tmpfile=$(mktemp -q -u '.iface-XXXX')
    (grep -Pn '^\s*iface' "${iface_filepath}" | cut -d':' -f1 && wc -l "${iface_filepath}" | cut -d' ' -f1) | awk 'FNR==1 {line=$0; next} {print line":"$0-1; line=$0}' >"${iface_indexes_tmpfile}" || true

    if [ -f "${iface_indexes_tmpfile}" ]; then

      while read -r pair; do
        start=$(echo "${pair}" | cut -d':' -f1)
        end=$(echo "${pair}" | cut -d':' -f2)
        if awk "NR >= ${start} && NR <= ${end}" "${iface_filepath}" | grep -qP '^\s*(bridge[-_](ports|stp|fd|vlan-aware|vids)|ovs_type\s+OVSBridge)\b'; then
          iface_name=$(sed "${start}q;d" "${iface_filepath}" | awk '{print $2}')
          BRIDGES="${iface_name}"$'\n'"${BRIDGES}"
        fi

      done <"${iface_indexes_tmpfile}"
      rm -f "${iface_indexes_tmpfile}"
    fi

  done
  IFS=$OLD_IFS
  BRIDGES=$(echo "$BRIDGES" | grep -v '^\s*$' | sort | uniq)

  if [[ -n "${BRG-}" ]]; then
    if echo "$BRIDGES" | grep -q "${BRG}"; then
      echo -e "${BRIDGE}${BOLD}${DGN}Bridge: ${BGN}$BRG${CL}"
    else
      msg_error "Bridge '${BRG}' does not exist in /etc/network/interfaces or /etc/network/interfaces.d/sdn"
      exit
    fi
  else
    BRG=$(whiptail --backtitle "Proxmox VE Helper Scripts" --menu "Select network bridge:" 15 40 6 $(echo "$BRIDGES" | awk '{print $0, "Bridge"}') 3>&1 1>&2 2>&3)
    if [ -z "$BRG" ]; then
      exit_script
    else
      echo -e "${BRIDGE}${BOLD}${DGN}Bridge: ${BGN}$BRG${CL}"
    fi
  fi

  local ip_cidr_regex='^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})/([0-9]{1,2})$'
  local ip_regex='^([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$'

  if [[ -n ${NET-} ]]; then
    if [ "$NET" == "dhcp" ]; then
      echo -e "${NETWORK}${BOLD}${DGN}IP Address: ${BGN}DHCP${CL}"
      echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}Default${CL}"
      GATE=""
    elif [[ "$NET" =~ $ip_cidr_regex ]]; then
      echo -e "${NETWORK}${BOLD}${DGN}IP Address: ${BGN}$NET${CL}"
      if [[ -n "$GATE" ]]; then
        [[ "$GATE" =~ ",gw=" ]] && GATE="${GATE##,gw=}"
        if [[ "$GATE" =~ $ip_regex ]]; then
          echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE${CL}"
          GATE=",gw=$GATE"
        else
          msg_error "Invalid IP Address format for Gateway. Needs to be 0.0.0.0, was ${GATE}"
          exit
        fi

      else
        while true; do
          GATE1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Enter gateway IP address" 8 58 --title "Gateway IP" 3>&1 1>&2 2>&3)
          if [ -z "$GATE1" ]; then
            whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "Gateway IP address cannot be empty" 8 58
          elif [[ ! "$GATE1" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then
            whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "Invalid IP address format" 8 58
          else
            GATE=",gw=$GATE1"
            echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE1${CL}"
            break
          fi
        done
      fi
    elif [[ "$NET" == *-* ]]; then
      IFS="-" read -r ip_start ip_end <<<"$NET"

      if [[ ! "$ip_start" =~ $ip_cidr_regex ]] || [[ ! "$ip_end" =~ $ip_cidr_regex ]]; then
        msg_error "Invalid IP range format, was $NET should be 0.0.0.0/0-0.0.0.0/0"
        exit 1
      fi

      ip1="${ip_start%%/*}"
      ip2="${ip_end%%/*}"
      cidr="${ip_start##*/}"

      ip_to_int() {
        local IFS=.
        read -r i1 i2 i3 i4 <<<"$1"
        echo $(((i1 << 24) + (i2 << 16) + (i3 << 8) + i4))
      }

      int_to_ip() {
        local ip=$1
        echo "$(((ip >> 24) & 0xFF)).$(((ip >> 16) & 0xFF)).$(((ip >> 8) & 0xFF)).$((ip & 0xFF))"
      }

      start_int=$(ip_to_int "$ip1")
      end_int=$(ip_to_int "$ip2")

      for ((ip_int = start_int; ip_int <= end_int; ip_int++)); do
        ip=$(int_to_ip $ip_int)
        msg_info "Checking IP: $ip"
        if ! ping -c 2 -W 1 "$ip" >/dev/null 2>&1; then
          NET="$ip/$cidr"
          msg_ok "Using free IP Address: ${BGN}$NET${CL}"
          sleep 3
          break
        fi
      done
      if [[ "$NET" == *-* ]]; then
        msg_error "No free IP found in range"
        exit 1
      fi
      if [ -n "$GATE" ]; then
        if [[ "$GATE" =~ $ip_regex ]]; then
          echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE${CL}"
          GATE=",gw=$GATE"
        else
          msg_error "Invalid IP Address format for Gateway. Needs to be 0.0.0.0, was ${GATE}"
          exit
        fi
      else
        while true; do
          GATE1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Enter gateway IP address" 8 58 --title "Gateway IP" 3>&1 1>&2 2>&3)
          if [ -z "$GATE1" ]; then
            whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "Gateway IP address cannot be empty" 8 58
          elif [[ ! "$GATE1" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then
            whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "Invalid IP address format" 8 58
          else
            GATE=",gw=$GATE1"
            echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE1${CL}"
            break
          fi
        done
      fi
    else
      msg_error "Invalid IP Address format. Needs to be 0.0.0.0/0 or a range like 10.0.0.1/24-10.0.0.10/24, was ${NET}"
      exit
    fi
  else
    while true; do
      NET=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Static IPv4 CIDR Address (/24)" 8 58 dhcp --title "IP ADDRESS" 3>&1 1>&2 2>&3)
      exit_status=$?
      if [ $exit_status -eq 0 ]; then
        if [ "$NET" = "dhcp" ]; then
          echo -e "${NETWORK}${BOLD}${DGN}IP Address: ${BGN}$NET${CL}"
          break
        else
          if [[ "$NET" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}/([0-9]|[1-2][0-9]|3[0-2])$ ]]; then
            echo -e "${NETWORK}${BOLD}${DGN}IP Address: ${BGN}$NET${CL}"
            break
          else
            whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "$NET is an invalid IPv4 CIDR address. Please enter a valid IPv4 CIDR address or 'dhcp'" 8 58
          fi
        fi
      else
        exit_script
      fi
    done
    if [ "$NET" != "dhcp" ]; then
      while true; do
        GATE1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Enter gateway IP address" 8 58 --title "Gateway IP" 3>&1 1>&2 2>&3)
        if [ -z "$GATE1" ]; then
          whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "Gateway IP address cannot be empty" 8 58
        elif [[ ! "$GATE1" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then
          whiptail --backtitle "Proxmox VE Helper Scripts" --msgbox "Invalid IP address format" 8 58
        else
          GATE=",gw=$GATE1"
          echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}$GATE1${CL}"
          break
        fi
      done
    else
      GATE=""
      echo -e "${GATEWAY}${BOLD}${DGN}Gateway IP Address: ${BGN}Default${CL}"
    fi
  fi

  if [ "$var_os" == "alpine" ]; then
    APT_CACHER=""
    APT_CACHER_IP=""
  else
    if [[ -n "${APT_CACHER_IP-}" ]]; then
      if [[ ! $APT_CACHER_IP == "none" ]]; then
        APT_CACHER="yes"
        echo -e "${NETWORK}${BOLD}${DGN}APT-CACHER IP Address: ${BGN}$APT_CACHER_IP${CL}"
      else
        APT_CACHER=""
        echo -e "${NETWORK}${BOLD}${DGN}APT-Cacher IP Address: ${BGN}No${CL}"
      fi
    else
      if APT_CACHER_IP=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set APT-Cacher IP (leave blank for none)" 8 58 --title "APT-Cacher IP" 3>&1 1>&2 2>&3); then
        APT_CACHER="${APT_CACHER_IP:+yes}"
        echo -e "${NETWORK}${BOLD}${DGN}APT-Cacher IP Address: ${BGN}${APT_CACHER_IP:-Default}${CL}"
        if [[ -n $APT_CACHER_IP ]]; then
          APT_CACHER_IP="none"
        fi
      else
        exit_script
      fi
    fi
  fi

  if [[ -n "${MTU-}" ]]; then
    if [[ "$MTU" =~ ^-?[0-9]+$ ]]; then
      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU${CL}"
      MTU=",mtu=$MTU"
    else
      msg_error "MTU must be an integer, was ${MTU}"
      exit
    fi
  else
    if MTU1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Interface MTU Size (leave blank for default [The MTU of your selected vmbr, default is 1500])" 8 58 --title "MTU SIZE" 3>&1 1>&2 2>&3); then
      if [ -z "$MTU1" ]; then
        MTU1="Default"
        MTU=""
      else
        MTU=",mtu=$MTU1"
      fi
      echo -e "${DEFAULT}${BOLD}${DGN}Interface MTU Size: ${BGN}$MTU1${CL}"
    else
      exit_script
    fi
  fi

  if [[ "$IPV6_METHOD" == "static" ]]; then
    if [[ -n "$IPV6STATIC" ]]; then
      IP6=",ip6=${IPV6STATIC}"
      echo -e "${NETWORK}${BOLD}${DGN}IPv6 Address: ${BGN}${IPV6STATIC}${CL}"
    else
      msg_error "IPV6_METHOD is set to static but IPV6STATIC is empty"
      exit
    fi
  elif [[ "$IPV6_METHOD" == "auto" ]]; then
    IP6=",ip6=auto"
    echo -e "${NETWORK}${BOLD}${DGN}IPv6 Address: ${BGN}auto${CL}"
  else
    IP6=""
    echo -e "${NETWORK}${BOLD}${DGN}IPv6 Address: ${BGN}none${CL}"
  fi

  if [[ -n "${SD-}" ]]; then
    if [[ "$SD" == "none" ]]; then
      SD=""
      echo -e "${SEARCH}${BOLD}${DGN}DNS Search Domain: ${BGN}Host${CL}"
    else
      # Strip prefix if present for config file storage
      local SD_VALUE="$SD"
      [[ "$SD" =~ ^-searchdomain= ]] && SD_VALUE="${SD#-searchdomain=}"
      echo -e "${SEARCH}${BOLD}${DGN}DNS Search Domain: ${BGN}$SD_VALUE${CL}"
      SD="-searchdomain=$SD_VALUE"
    fi
  else
    if SD=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a DNS Search Domain (leave blank for HOST)" 8 58 --title "DNS Search Domain" 3>&1 1>&2 2>&3); then
      if [ -z "$SD" ]; then
        SX=Host
        SD=""
      else
        SX=$SD
        SD="-searchdomain=$SD"
      fi
      echo -e "${SEARCH}${BOLD}${DGN}DNS Search Domain: ${BGN}$SX${CL}"
    else
      exit_script
    fi
  fi

  if [[ -n "${NS-}" ]]; then
    if [[ $NS == "none" ]]; then
      NS=""
      echo -e "${NETWORK}${BOLD}${DGN}DNS Server IP Address: ${BGN}Host${CL}"
    else
      # Strip prefix if present for config file storage
      local NS_VALUE="$NS"
      [[ "$NS" =~ ^-nameserver= ]] && NS_VALUE="${NS#-nameserver=}"
      if [[ "$NS_VALUE" =~ $ip_regex ]]; then
        echo -e "${NETWORK}${BOLD}${DGN}DNS Server IP Address: ${BGN}$NS_VALUE${CL}"
        NS="-nameserver=$NS_VALUE"
      else
        msg_error "Invalid IP Address format for DNS Server. Needs to be 0.0.0.0, was ${NS_VALUE}"
        exit
      fi
    fi
  else
    if NX=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a DNS Server IP (leave blank for HOST)" 8 58 --title "DNS SERVER IP" 3>&1 1>&2 2>&3); then
      if [ -z "$NX" ]; then
        NX=Host
        NS=""
      else
        NS="-nameserver=$NX"
      fi
      echo -e "${NETWORK}${BOLD}${DGN}DNS Server IP Address: ${BGN}$NX${CL}"
    else
      exit_script
    fi
  fi

  if [[ -n "${MAC-}" ]]; then
    if [[ "$MAC" == "none" ]]; then
      MAC=""
      echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}Host${CL}"
    else
      # Strip prefix if present for config file storage
      local MAC_VALUE="$MAC"
      [[ "$MAC" =~ ^,hwaddr= ]] && MAC_VALUE="${MAC#,hwaddr=}"
      if [[ "$MAC_VALUE" =~ ^([A-Fa-f0-9]{2}:){5}[A-Fa-f0-9]{2}$ ]]; then
        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC_VALUE${CL}"
        MAC=",hwaddr=$MAC_VALUE"
      else
        msg_error "MAC Address must be in the format xx:xx:xx:xx:xx:xx, was ${MAC_VALUE}"
        exit
      fi
    fi
  else
    if MAC1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a MAC Address(leave blank for generated MAC)" 8 58 --title "MAC ADDRESS" 3>&1 1>&2 2>&3); then
      if [ -z "$MAC1" ]; then
        MAC1="Default"
        MAC=""
      else
        MAC=",hwaddr=$MAC1"
        echo -e "${MACADDRESS}${BOLD}${DGN}MAC Address: ${BGN}$MAC1${CL}"
      fi
    else
      exit_script
    fi
  fi

  if [[ -n "${VLAN-}" ]]; then
    if [[ "$VLAN" == "none" ]]; then
      VLAN=""
      echo -e "${VLANTAG}${BOLD}${DGN}Vlan: ${BGN}Host${CL}"
    else
      # Strip prefix if present for config file storage
      local VLAN_VALUE="$VLAN"
      [[ "$VLAN" =~ ^,tag= ]] && VLAN_VALUE="${VLAN#,tag=}"
      if [[ "$VLAN_VALUE" =~ ^-?[0-9]+$ ]]; then
        echo -e "${VLANTAG}${BOLD}${DGN}Vlan: ${BGN}$VLAN_VALUE${CL}"
        VLAN=",tag=$VLAN_VALUE"
      else
        msg_error "VLAN must be an integer, was ${VLAN_VALUE}"
        exit
      fi
    fi
  else
    if VLAN1=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set a Vlan(leave blank for no VLAN)" 8 58 --title "VLAN" 3>&1 1>&2 2>&3); then
      if [ -z "$VLAN1" ]; then
        VLAN1="Default"
        VLAN=""
      else
        VLAN=",tag=$VLAN1"
      fi
      echo -e "${VLANTAG}${BOLD}${DGN}Vlan: ${BGN}$VLAN1${CL}"
    else
      exit_script
    fi
  fi

  if [[ -n "${TAGS-}" ]]; then
    if [[ "$TAGS" == *"DEFAULT"* ]]; then
      TAGS="${TAGS//DEFAULT/}"
      TAGS="${TAGS//;/}"
      TAGS="$TAGS;${var_tags:-}"
      echo -e "${NETWORK}${BOLD}${DGN}Tags: ${BGN}$TAGS${CL}"
    fi
  else
    TAGS="community-scripts;"
    if ADV_TAGS=$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "Set Custom Tags?[If you remove all, there will be no tags!]" 8 58 "${TAGS}" --title "Advanced Tags" 3>&1 1>&2 2>&3); then
      if [ -n "${ADV_TAGS}" ]; then
        ADV_TAGS=$(echo "$ADV_TAGS" | tr -d '[:space:]')
        TAGS="${ADV_TAGS}"
      else
        TAGS=";"
      fi
      echo -e "${NETWORK}${BOLD}${DGN}Tags: ${BGN}$TAGS${CL}"
    else
      exit_script
    fi
  fi

  if [[ -n "${SSH-}" ]]; then
    if [[ "$SSH" == "yes" ]]; then
      echo -e "${ROOTSSH}${BOLD}${DGN}Root SSH Access: ${BGN}$SSH${CL}"
      if [[ ! -z "$SSH_AUTHORIZED_KEY" ]]; then
        echo -e "${ROOTSSH}${BOLD}${DGN}SSH Authorized Key: ${BGN}********************${CL}"
      else
        echo -e "${ROOTSSH}${BOLD}${DGN}SSH Authorized Key: ${BGN}None${CL}"
      fi
    elif [[ "$SSH" == "no" ]]; then
      echo -e "${ROOTSSH}${BOLD}${DGN}Root SSH Access: ${BGN}$SSH${CL}"
    else
      msg_error "SSH needs to be 'yes' or 'no', was ${SSH}"
      exit
    fi
  else
    SSH_AUTHORIZED_KEY="$(whiptail --backtitle "Proxmox VE Helper Scripts" --inputbox "SSH Authorized key for root (leave empty for none)" 8 58 --title "SSH Key" 3>&1 1>&2 2>&3)"
    if [[ -z "${SSH_AUTHORIZED_KEY}" ]]; then
      SSH_AUTHORIZED_KEY=""
    fi
    if [[ "$PW" == -password* || -n "$SSH_AUTHORIZED_KEY" ]]; then
      if (whiptail --backtitle "Proxmox VE Helper Scripts" --defaultno --title "SSH ACCESS" --yesno "Enable Root SSH Access?" 10 58); then
        SSH="yes"
      else
        SSH="no"
      fi
      echo -e "${ROOTSSH}${BOLD}${DGN}Root SSH Access: ${BGN}$SSH${CL}"
    else
      SSH="no"
      echo -e "${ROOTSSH}${BOLD}${DGN}Root SSH Access: ${BGN}$SSH${CL}"
    fi
  fi

  if [[ -n "$ENABLE_FUSE" ]]; then
    if [[ "$ENABLE_FUSE" == "yes" ]]; then
      echo -e "${FUSE}${BOLD}${DGN}Enable FUSE: ${BGN}Yes${CL}"
    elif [[ "$ENABLE_FUSE" == "no" ]]; then
      echo -e "${FUSE}${BOLD}${DGN}Enable FUSE: ${BGN}No${CL}"
    else
      msg_error "Enable FUSE needs to be 'yes' or 'no', was ${ENABLE_FUSE}"
      exit
    fi
  else
    if (whiptail --backtitle "Proxmox VE Helper Scripts" --defaultno --title "FUSE" --yesno "Enable FUSE?" 10 58); then
      ENABLE_FUSE="yes"
    else
      ENABLE_FUSE="no"
    fi
    echo -e "${FUSE}${BOLD}${DGN}Enable FUSE: ${BGN}$ENABLE_FUSE${CL}"
  fi

  if [[ -n "$ENABLE_TUN" ]]; then
    if [[ "$ENABLE_TUN" == "yes" ]]; then
      echo -e "${FUSE}${BOLD}${DGN}Enable TUN: ${BGN}Yes${CL}"
    elif [[ "$ENABLE_TUN" == "no" ]]; then
      echo -e "${FUSE}${BOLD}${DGN}Enable TUN: ${BGN}No${CL}"
    else
      msg_error "Enable TUN needs to be 'yes' or 'no', was ${ENABLE_TUN}"
      exit
    fi
  else
    if (whiptail --backtitle "Proxmox VE Helper Scripts" --defaultno --title "TUN" --yesno "Enable TUN?" 10 58); then
      ENABLE_TUN="yes"
    else
      ENABLE_TUN="no"
    fi
    echo -e "${FUSE}${BOLD}${DGN}Enable TUN: ${BGN}$ENABLE_TUN${CL}"
  fi

  if [[ -n "${VERBOSE-}" ]]; then
    if [[ "$VERBOSE" == "yes" ]]; then
      echo -e "${SEARCH}${BOLD}${DGN}Verbose Mode: ${BGN}$VERBOSE${CL}"
    elif [[ "$VERBOSE" == "no" ]]; then
      echo -e "${SEARCH}${BOLD}${DGN}Verbose Mode: ${BGN}No${CL}"
    else
      msg_error "Verbose Mode needs to be 'yes' or 'no', was ${VERBOSE}"
      exit
    fi
  else
    if (whiptail --backtitle "Proxmox VE Helper Scripts" --defaultno --title "VERBOSE MODE" --yesno "Enable Verbose Mode?" 10 58); then
      VERBOSE="yes"
    else
      VERBOSE="no"
    fi
    echo -e "${SEARCH}${BOLD}${DGN}Verbose Mode: ${BGN}$VERBOSE${CL}"
  fi

  if (whiptail --backtitle "Proxmox VE Helper Scripts" --title "ADVANCED SETTINGS WITH CONFIG FILE COMPLETE" --yesno "Ready to create ${APP} LXC?" 10 58); then
    echo -e "${CREATING}${BOLD}${RD}Creating a ${APP} LXC using the above settings${CL}"
  else
    clear
    header_info
    echo -e "${INFO}${HOLD} ${GN}Using Config File on node $PVEHOST_NAME${CL}"
    config_file
  fi
}