297 lines
7.5 KiB
Bash
Executable file
297 lines
7.5 KiB
Bash
Executable file
#!/usr/bin/bash
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#
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#RESULT_POSSIBLE=("init","list","start","start_backup","create","backup","restore","suppr")
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# Constante d'éxecutions.
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Version="0.7.0-developpement_day"
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USAGE="vm-start [PARAMETTER] [ NAME COMMAND [OPTION] ]
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Script to manage virtual machine easily.
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NAME is the name of the virtual machine to use.
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PARAMETTER available
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-h, --help Print this help and exit
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-v, --version Print the version of this program and quit
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-l, --list Print the list of all availables machines and quit <TODO>
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COMMAND available
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init Create the conf file in conf/NAME_var.sh
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start Start the virtual machine using the variabes in conf/NAME_var.sh
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start-backup Start the virtual machine using the backup volume if it exists.
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create Create the virtual machine using the conf in conf/NAME_var.sh
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backup Create a backup file for the vm
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restore Restore the virtual machine using to backup file
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suppr Suppr all data related to the virtual machine other than the conf file.
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COMMAND TODO
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suppr-all Suppr all data related to the vm even the conf file #TODO
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OPTION available
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nproc=<nb proc> Def the number of proc of the vm
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memory=<mem> Def the qty of memory allocated to the vm
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size=<size> Def the size that should be allocated by create
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uefi Select if there will be an UEFI by default.
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can be either set or unset. By default is unset.
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options=<option> additinal options to give to qemu. By default is
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-display gtk -vga qxl
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create_disk=<loc_disk> Def a create disk to boot on. Is necessary for using create, or need the variable INSTALLATION_DISK_LOCATION to be set.
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"
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MAIN_LOCATION="$HOME/virtual_machine"
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# if MAIN_LOCATION doesn't exists, create the folder.
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if [ -f "$MAIN_LOCATION" ]
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then
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mkdir "$MAIN_LOCATION" || exit 0 #Exit in case the folder can't be created.
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echo "$MAIN_LOCATION created to contain all virtual machines."
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fi
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OPTION="-display gtk \
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-usbdevice tablet"
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# other options choices
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#
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#-display sdl
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#-vga qxl
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#-usbdevice tablet \
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HELP() {
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echo "$USAGE"
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exit 0
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}
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INIT() {
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echo "INIT for vm $1"
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NAME="$1"
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read -p "How many proccessor will you use ? " -r NPROC
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read -p "How much memory will you need ? " -r MEMORY
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read -p "Do you want to forward ssh port (y/n) " -r entry
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if echo "$entry" | grep -q "^[yY]$"
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then
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FORWARD=",hostfwd=tcp::10022-:22" # forward VM 22 port to Host 10022
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fi
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mkdir -p conf
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cat << EOF > "conf/$NAME-vm_var.sh"
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NAME="${NAME}"
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VMHOSTNAME="\${NAME}-vm"
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VMDRIVE="\${VMHOSTNAME}.cow"
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NPROC="${NPROC}"
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MEMORY="${MEMORY}"
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FORWARD="${FORWARD}"
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LOCATION="\${NAME}-sandbox"
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EOF
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chmod +x "conf/$NAME-vm_var.sh"
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}
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start_the_vm() {
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qemu-system-x86_64 \
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-enable-kvm \
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-cpu host \
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-smp "$NPROC" \
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-net nic \
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-net user"$FORWARD",hostname="$VMHOSTNAME" \
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-m "$MEMORY" \
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-drive file="${MAIN_LOCATION}/${LOCATION}/${VMDRIVE}",index=2,id=maindrive,media=disk \
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$OPTION
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}
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START() {
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start_the_vm
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}
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START_BACKUP() {
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VMDRIVE="${VMDRIVE}.backup"
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start_the_vm
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}
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CREATE() {
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if [ -z "${SIZE+x}" ]
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then
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SIZE="40G"
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fi
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if [ ! -f "${MAIN_LOCATION}/${LOCATION}/${VMHOSTNAME}.cow" ]
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then
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echo "create directory ${MAIN_LOCATION}/${LOCATION}/"
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mkdir -p "${MAIN_LOCATION}/${LOCATION}/"
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qemu-img create -f qcow2 "${MAIN_LOCATION}/${LOCATION}/${VMHOSTNAME}.cow" "$SIZE"
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fi
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if [ "${UEFI}" == "set" ]
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then
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echo "create UEFIVAR"
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if [ ! -f "${MAIN_LOCATION}/${LOCATION}/OVMF_VARS.4m.fd" ]
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then
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cp /usr/share/edk2/x64/OVMF_VARS.4m.fd "${MAIN_LOCATION}/${LOCATION}"
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else
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echo "INFO, UEFIVAR already existing"
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fi
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fi
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OPTION="$OPTION \
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-boot d \
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-drive file=$1,if=none,media=cdrom,id=drive-cd1 \
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-device ide-cd,drive=drive-cd1,id=cd1,bootindex=1"
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start_the_vm
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}
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RESTORE() {
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read -p "Are you sure you want to restore the rescue? (y/N) " -r entry
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if echo "$entry" | grep -q "^[yY]$"
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then
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cp -i "${MAIN_LOCATION}/${LOCATION}/${VMHOSTNAME}.cow.backup" "${MAIN_LOCATION}/${LOCATION}/${VMHOSTNAME}.cow"
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echo "Done"
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fi
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}
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BACKUP() {
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read -p "Are you sure you want to backup the volume? If you continue the previous backup will be lost (y/N) " -r entry
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if echo "$entry" | grep -q "^[yY]$"
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then
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cp -i "${MAIN_LOCATION}/${LOCATION}/${VMHOSTNAME}.cow" "${MAIN_LOCATION}/${LOCATION}/${VMHOSTNAME}.cow.backup"
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echo "Done"
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fi
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}
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SUPPRESS() {
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read -p "Are you sure you want to delete all data relative to the vm $1? (y/N)" -r entry
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if echo "$entry" | grep -q "^[yY]$"
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then
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rm -Ri "${MAIN_LOCATION}/${LOCATION}"
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fi
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}
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set_uefi() {
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UEFI="set"
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OPTION="${OPTION} \
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-drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
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-drive if=pflash,format=raw,file=${MAIN_LOCATION}/${LOCATION}/OVMF_VARS.4m.fd"
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}
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# gère les paramètres
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for i in "$@"; do
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if [ "$i" == "-h" ] || [ "$i" == "--help" ]
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then
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HELP
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elif [ "$i" == "-v" ] || [ "$i" == "--version" ]
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then
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echo "vm-start ${Version}"
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exit 0
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fi
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done
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# verifie au moins assez d'options pour utiliser le programme.
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if [ $# -lt 2 ]
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then
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echo "Error, not enough args" >&2
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HELP
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fi
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# vérifie que le dossier pour stocker les vms existe & change le dossier actif pour qu'il soit cellui du lanceur.
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mkdir -p "$MAIN_LOCATION"
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cd "$( dirname "$( readlink -f "$0" )" )" || exit
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# Véréfie qu'il y ait bien un fichier de config pour la vm que l'on tente de démarer dans la cas contraire en génére un.
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# possibilitée de générer à nouveau le fichier de config avec vm-start nom-vm init
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if [ ! -f "conf/$1-vm_var.sh" ]
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then
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echo "no config file found. creating one in conf/${1}-vm_var.sh"
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INIT "$1"
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if [ "$2" == "init" ]
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then
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# Exit, it is the end of the program.
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exit 0
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fi
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fi
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#Vérifie si l'option UEFI est set dans le fichier de config. Si oui l'ajoutte aux options.
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. "conf/$1-vm_var.sh"
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for (( i=3; i<=$#; i++)); do
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case "${!i%=*}" in
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"nproc")
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NPROC="${!i#*=}"
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;;
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"memory")
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MEMORY="${!i#*=}"
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;;
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"uefi")
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set_uefi
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;;
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"create_disk")
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INSTALLATION_DISK_LOCATION="${!i#*=}"
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;;
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esac
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done
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if [ "${UEFI}" == "yes" ]
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then
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set_uefi
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fi
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case "$2" in
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"start")
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echo "starting VM $1"
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START
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;;
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"start-backup")
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echo "starting VM rescue"
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START_BACKUP
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;;
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"backup")
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echo "backup VM"
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BACKUP
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;;
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"restore")
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echo "restore backup"
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RESTORE
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;;
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"create")
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echo "creating VM"
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if [ ! "${INSTALLATION_DISK_LOCATION}" == "" ]
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then
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echo "using image disk ${INSTALLATION_DISK_LOCATION}"
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CREATE "${INSTALLATION_DISK_LOCATION}"
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else
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echo "Error, no image defined." >&2
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fi
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;;
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"suppr")
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echo "suppressing all data of the vm $1"
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SUPPRESS "$1"
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;;
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"init")
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echo "Init volume $1"
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INIT "$1"
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;;
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*)
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echo "commande $2 inconnue" >&2
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HELP
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esac
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