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Diffstat (limited to 'linux/home/.scripts/qemu-helper.sh')
| -rwxr-xr-x | linux/home/.scripts/qemu-helper.sh | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/linux/home/.scripts/qemu-helper.sh b/linux/home/.scripts/qemu-helper.sh new file mode 100755 index 0000000..0d38aba --- /dev/null +++ b/linux/home/.scripts/qemu-helper.sh @@ -0,0 +1,172 @@ +#!/bin/bash + +# Created By: srdusr +# Created On: Wed 02 Aug 2023 16:16:21 PM CAT +# Project: QEMU setup/opener helper wrapper script + +# Set global variables for VM parameters +ram_size="4G" + +# Function to prompt user for VM parameters +function get_vm_parameters() { + read -p "Enter VM name (default: vm): " vm_name + vm_name=${vm_name:-vm} + + # Set the default ISO file path to ~/machines/images + default_iso_path="$HOME/machines/images" + + # Generate completions for ISO and IMG files in the images directory + COMPREPLY=() + local files=$(compgen -G "$default_iso_path/*.{iso,img}" -o plusdirs) + for file in $files; do + COMPREPLY+=("$file") + done + + # Use read with -i and -e options for tab-completion + read -ep "Enter ISO file path (default: $default_iso_path): " -i "$default_iso_path" iso_path + + # Manually expand the ~ to the user's home directory + iso_path=$(eval echo "$iso_path") + + # Validate the user input + while [ ! -f "$iso_path" ]; do + read -ep "Invalid file path. Enter a valid ISO file path: " iso_path + done + + # Check if the selected file is an IMG file + if [[ "$iso_path" == *.img ]]; then + guest_os="windows" + else + guest_os="linux" + fi + + # Show available disk space before asking for disk image size + echo "Available disk space:" + df -h "$vm_images_path" + + read -p "Enter disk image size in GB (default: 10G): " disk_size + disk_size=${disk_size:-10G} + + read -p "Enter RAM size in GB (default: 4G): " ram_size + ram_size=${ram_size:-4G} + + # Check if the RAM size is in the correct format (e.g., "4G") + while ! [[ $ram_size =~ ^[0-9]+[kKmMgGtTpPeE]$ ]]; do + read -p "Invalid RAM size format. Enter RAM size in GB (e.g., 4G): " ram_size + done + + read -p "Enter number of CPU cores (default: 2): " cpu_cores + cpu_cores=${cpu_cores:-2} +} + + +# Function to list available VMs +function list_vms() { + echo "Available VMs:" + for vm_file in "$vm_images_path"/*.qcow2; do + vm=$(basename "$vm_file" .qcow2) + echo " - $vm" + done +} + +# Function to list available ISO and IMG files in the images directory +function list_iso_img_files() { + echo "Available ISO and IMG files in $iso_images_path:" + iso_img_files=() + while IFS= read -r -d $'\0' file; do + iso_img_files+=("$file") + done < <(find "$iso_images_path" -type f \( -iname \*.iso -o -iname \*.img \) -print0) + + for ((i = 0; i < ${#iso_img_files[@]}; i++)); do + echo " $((i + 1)). ${iso_img_files[i]##*/}" + done +} + +# Function to check if VM is already running +function is_vm_running() { + vm_name=$1 + if ps aux | grep -v grep | grep -q "[q]emu-system-x86_64.*$vm_name"; then + return 0 + else + return 1 + fi +} + +# Function to start VM +function start_vm() { + vm_name=$1 + is_vm_running "$vm_name" + if [ $? -eq 0 ]; then + echo "VM '$vm_name' is already running." + return + fi + + # VM parameters + qemu_cmd="qemu-system-x86_64 -enable-kvm -machine type=q35 -m $ram_size -cpu host -smp 2 -vga virtio" + qemu_cmd+=" -device qemu-xhci -device usb-tablet -device usb-kbd -device virtio-net,netdev=user0 -netdev user,id=user0,hostfwd=tcp::5555-:22" + qemu_cmd+=" -cdrom \"$iso_path\" -drive file=\"$vm_images_path/$vm_name.qcow2\",index=0,media=disk,if=virtio" + + if [[ $guest_os == "windows" ]]; then + qemu_cmd+=" -drive file=\"$iso_images_path/virtio-win.iso\",index=3,media=cdrom" + fi + + qemu_cmd+=" -boot menu=on" + qemu_cmd+=" -net nic -net user,hostname=$vm_name -name \"$vm_name\"" + + echo "Starting VM: $vm_name" + eval "$qemu_cmd" +} + +# Main script starts here +vm_images_path="$HOME/machines/vm" +iso_images_path="$HOME/machines/images" + +# Check if directories exist +mkdir -p "$vm_images_path" +mkdir -p "$iso_images_path" + +# List available VMs +list_vms + +# List available ISO and IMG files in the images directory +list_iso_img_files + +# Ask the user if they want to use an existing VM or create a new one +read -p "Do you want to use an existing VM? (y/n): " use_existing_vm +if [[ $use_existing_vm =~ ^[Yy]$ ]]; then + read -p "Enter the name of the existing VM: " existing_vm_name + while [ ! -f "$vm_images_path/$existing_vm_name.qcow2" ]; do + echo "VM '$existing_vm_name' does not exist." + read -p "Enter a valid existing VM name: " existing_vm_name + done + vm_name=$existing_vm_name +else + # Prompt user for VM parameters + get_vm_parameters + + # Check if VM already exists + if [ -f "$vm_images_path/$vm_name.qcow2" ]; then + read -p "VM '$vm_name' already exists. Do you want to start it? (y/n): " start_vm_choice + if [[ $start_vm_choice =~ ^[Yy]$ ]]; then + start_vm "$vm_name" + exit 0 + fi + else + # Create new VM + echo "Creating new VM: $vm_name" + qemu-img create -f qcow2 "$vm_images_path/$vm_name.qcow2" "$disk_size" + start_vm "$vm_name" + exit 0 + fi +fi + +# If an existing VM is selected, ask if the user wants to modify its parameters +read -p "Do you want to modify the VM parameters? (y/n): " modify_vm_params +if [[ $modify_vm_params =~ ^[Yy]$ ]]; then + get_vm_parameters +fi + +# Start the VM +start_vm "$vm_name" + +echo "Script execution completed." |