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+#!/usr/bin/env python3
+#
+# Copyright 2023 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This file is part of VyOS.
+#
+# VyOS is free software: you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# VyOS is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# VyOS. If not, see <https://www.gnu.org/licenses/>.
+
+from argparse import ArgumentParser, Namespace
+from pathlib import Path
+from shutil import copy, chown, rmtree, copytree
+from glob import glob
+from sys import exit
+from os import environ
+from time import sleep
+from typing import Union
+from urllib.parse import urlparse
+from passlib.hosts import linux_context
+
+from psutil import disk_partitions
+
+from vyos.configtree import ConfigTree
+from vyos.remote import download
+from vyos.system import disk, grub, image, compat, raid, SYSTEM_CFG_VER
+from vyos.template import render
+from vyos.utils.io import ask_input, ask_yes_no, select_entry
+from vyos.utils.file import chmod_2775
+from vyos.utils.process import cmd, run
+
+# define text messages
+MSG_ERR_NOT_LIVE: str = 'The system is already installed. Please use "add system image" instead.'
+MSG_ERR_LIVE: str = 'The system is in live-boot mode. Please use "install image" instead.'
+MSG_ERR_NO_DISK: str = 'No suitable disk was found. There must be at least one disk of 2GB or greater size.'
+MSG_ERR_IMPROPER_IMAGE: str = 'Missing sha256sum.txt.\nEither this image is corrupted, or of era 1.2.x (md5sum) and would downgrade image tools;\ndisallowed in either case.'
+MSG_INFO_INSTALL_WELCOME: str = 'Welcome to VyOS installation!\nThis command will install VyOS to your permanent storage.'
+MSG_INFO_INSTALL_EXIT: str = 'Exiting from VyOS installation'
+MSG_INFO_INSTALL_SUCCESS: str = 'The image installed successfully; please reboot now.'
+MSG_INFO_INSTALL_DISKS_LIST: str = 'The following disks were found:'
+MSG_INFO_INSTALL_DISK_SELECT: str = 'Which one should be used for installation?'
+MSG_INFO_INSTALL_RAID_CONFIGURE: str = 'Would you like to configure RAID-1 mirroring?'
+MSG_INFO_INSTALL_RAID_FOUND_DISKS: str = 'Would you like to configure RAID-1 mirroring on them?'
+MSG_INFO_INSTALL_RAID_CHOOSE_DISKS: str = 'Would you like to choose two disks for RAID-1 mirroring?'
+MSG_INFO_INSTALL_DISK_CONFIRM: str = 'Installation will delete all data on the drive. Continue?'
+MSG_INFO_INSTALL_RAID_CONFIRM: str = 'Installation will delete all data on both drives. Continue?'
+MSG_INFO_INSTALL_PARTITONING: str = 'Creating partition table...'
+MSG_INPUT_CONFIG_FOUND: str = 'An active configuration was found. Would you like to copy it to the new image?'
+MSG_INPUT_IMAGE_NAME: str = 'What would you like to name this image?'
+MSG_INPUT_IMAGE_DEFAULT: str = 'Would you like to set the new image as the default one for boot?'
+MSG_INPUT_PASSWORD: str = 'Please enter a password for the "vyos" user'
+MSG_INPUT_ROOT_SIZE_ALL: str = 'Would you like to use all the free space on the drive?'
+MSG_INPUT_ROOT_SIZE_SET: str = 'Please specify the size (in GB) of the root partition (min is 1.5 GB)?'
+MSG_INPUT_CONSOLE_TYPE: str = 'What console should be used by default? (K: KVM, S: Serial, U: USB-Serial)?'
+MSG_INPUT_COPY_DATA: str = 'Would you like to copy data to the new image?'
+MSG_INPUT_CHOOSE_COPY_DATA: str = 'From which image would you like to save config information?'
+MSG_WARN_ISO_SIGN_INVALID: str = 'Signature is not valid. Do you want to continue with installation?'
+MSG_WARN_ISO_SIGN_UNAVAL: str = 'Signature is not available. Do you want to continue with installation?'
+MSG_WARN_ROOT_SIZE_TOOBIG: str = 'The size is too big. Try again.'
+MSG_WARN_ROOT_SIZE_TOOSMALL: str = 'The size is too small. Try again'
+MSG_WARN_IMAGE_NAME_WRONG: str = 'The suggested name is unsupported!\n'
+'It must be between 1 and 32 characters long and contains only the next characters: .+-_ a-z A-Z 0-9'
+CONST_MIN_DISK_SIZE: int = 2147483648 # 2 GB
+CONST_MIN_ROOT_SIZE: int = 1610612736 # 1.5 GB
+# a reserved space: 2MB for header, 1 MB for BIOS partition, 256 MB for EFI
+CONST_RESERVED_SPACE: int = (2 + 1 + 256) * 1024**2
+
+# define directories and paths
+DIR_INSTALLATION: str = '/mnt/installation'
+DIR_ROOTFS_SRC: str = f'{DIR_INSTALLATION}/root_src'
+DIR_ROOTFS_DST: str = f'{DIR_INSTALLATION}/root_dst'
+DIR_ISO_MOUNT: str = f'{DIR_INSTALLATION}/iso_src'
+DIR_DST_ROOT: str = f'{DIR_INSTALLATION}/disk_dst'
+DIR_KERNEL_SRC: str = '/boot/'
+FILE_ROOTFS_SRC: str = '/usr/lib/live/mount/medium/live/filesystem.squashfs'
+ISO_DOWNLOAD_PATH: str = '/tmp/vyos_installation.iso'
+
+external_download_script = '/usr/libexec/vyos/simple-download.py'
+
+# default boot variables
+DEFAULT_BOOT_VARS: dict[str, str] = {
+ 'timeout': '5',
+ 'console_type': 'tty',
+ 'console_num': '0',
+ 'bootmode': 'normal'
+}
+
+
+def bytes_to_gb(size: int) -> float:
+ """Convert Bytes to GBytes, rounded to 1 decimal number
+
+ Args:
+ size (int): input size in bytes
+
+ Returns:
+ float: size in GB
+ """
+ return round(size / 1024**3, 1)
+
+
+def gb_to_bytes(size: float) -> int:
+ """Convert GBytes to Bytes
+
+ Args:
+ size (float): input size in GBytes
+
+ Returns:
+ int: size in bytes
+ """
+ return int(size * 1024**3)
+
+
+def find_disks() -> dict[str, int]:
+ """Find a target disk for installation
+
+ Returns:
+ dict[str, int]: a list of available disks by name and size
+ """
+ # check for available disks
+ print('Probing disks')
+ disks_available: dict[str, int] = disk.disks_size()
+ for disk_name, disk_size in disks_available.copy().items():
+ if disk_size < CONST_MIN_DISK_SIZE:
+ del disks_available[disk_name]
+ if not disks_available:
+ print(MSG_ERR_NO_DISK)
+ exit(MSG_INFO_INSTALL_EXIT)
+
+ num_disks: int = len(disks_available)
+ print(f'{num_disks} disk(s) found')
+
+ return disks_available
+
+
+def ask_root_size(available_space: int) -> int:
+ """Define a size of root partition
+
+ Args:
+ available_space (int): available space in bytes for a root partition
+
+ Returns:
+ int: defined size
+ """
+ if ask_yes_no(MSG_INPUT_ROOT_SIZE_ALL, default=True):
+ return available_space
+
+ while True:
+ root_size_gb: str = ask_input(MSG_INPUT_ROOT_SIZE_SET)
+ root_size_kbytes: int = (gb_to_bytes(float(root_size_gb))) // 1024
+
+ if root_size_kbytes > available_space:
+ print(MSG_WARN_ROOT_SIZE_TOOBIG)
+ continue
+ if root_size_kbytes < CONST_MIN_ROOT_SIZE / 1024:
+ print(MSG_WARN_ROOT_SIZE_TOOSMALL)
+ continue
+
+ return root_size_kbytes
+
+def create_partitions(target_disk: str, target_size: int,
+ prompt: bool = True) -> None:
+ """Create partitions on a target disk
+
+ Args:
+ target_disk (str): a target disk
+ target_size (int): size of disk in bytes
+ """
+ # define target rootfs size in KB (smallest unit acceptable by sgdisk)
+ available_size: int = (target_size - CONST_RESERVED_SPACE) // 1024
+ if prompt:
+ rootfs_size: int = ask_root_size(available_size)
+ else:
+ rootfs_size: int = available_size
+
+ print(MSG_INFO_INSTALL_PARTITONING)
+ raid.clear()
+ disk.disk_cleanup(target_disk)
+ disk_details: disk.DiskDetails = disk.parttable_create(target_disk,
+ rootfs_size)
+
+ return disk_details
+
+
+def search_format_selection(image: tuple[str, str]) -> str:
+ """Format a string for selection of image
+
+ Args:
+ image (tuple[str, str]): a tuple of image name and drive
+
+ Returns:
+ str: formatted string
+ """
+ return f'{image[0]} on {image[1]}'
+
+
+def search_previous_installation(disks: list[str]) -> None:
+ """Search disks for previous installation config and SSH keys
+
+ Args:
+ disks (list[str]): a list of available disks
+ """
+ mnt_config = '/mnt/config'
+ mnt_ssh = '/mnt/ssh'
+ mnt_tmp = '/mnt/tmp'
+ rmtree(Path(mnt_config), ignore_errors=True)
+ rmtree(Path(mnt_ssh), ignore_errors=True)
+ Path(mnt_tmp).mkdir(exist_ok=True)
+
+ print('Searching for data from previous installations')
+ image_data = []
+ for disk_name in disks:
+ for partition in disk.partition_list(disk_name):
+ if disk.partition_mount(partition, mnt_tmp):
+ if Path(mnt_tmp + '/boot').exists():
+ for path in Path(mnt_tmp + '/boot').iterdir():
+ if path.joinpath('rw/config/.vyatta_config').exists():
+ image_data.append((path.name, partition))
+
+ disk.partition_umount(partition)
+
+ if len(image_data) == 1:
+ image_name, image_drive = image_data[0]
+ print('Found data from previous installation:')
+ print(f'\t{image_name} on {image_drive}')
+ if not ask_yes_no(MSG_INPUT_COPY_DATA, default=True):
+ return
+
+ elif len(image_data) > 1:
+ print('Found data from previous installations')
+ if not ask_yes_no(MSG_INPUT_COPY_DATA, default=True):
+ return
+
+ image_name, image_drive = select_entry(image_data,
+ 'Available versions:',
+ MSG_INPUT_CHOOSE_COPY_DATA,
+ search_format_selection)
+ else:
+ print('No previous installation found')
+ return
+
+ disk.partition_mount(image_drive, mnt_tmp)
+
+ copytree(f'{mnt_tmp}/boot/{image_name}/rw/config', mnt_config)
+ Path(mnt_ssh).mkdir()
+ host_keys: list[str] = glob(f'{mnt_tmp}/boot/{image_name}/rw/etc/ssh/ssh_host*')
+ for host_key in host_keys:
+ copy(host_key, mnt_ssh)
+
+ disk.partition_umount(image_drive)
+
+
+def copy_previous_installation_data(target_dir: str) -> None:
+ if Path('/mnt/config').exists():
+ copytree('/mnt/config', f'{target_dir}/opt/vyatta/etc/config',
+ dirs_exist_ok=True)
+ if Path('/mnt/ssh').exists():
+ copytree('/mnt/ssh', f'{target_dir}/etc/ssh',
+ dirs_exist_ok=True)
+
+
+def ask_single_disk(disks_available: dict[str, int]) -> str:
+ """Ask user to select a disk for installation
+
+ Args:
+ disks_available (dict[str, int]): a list of available disks
+ """
+ print(MSG_INFO_INSTALL_DISKS_LIST)
+ default_disk: str = list(disks_available)[0]
+ for disk_name, disk_size in disks_available.items():
+ disk_size_human: str = bytes_to_gb(disk_size)
+ print(f'Drive: {disk_name} ({disk_size_human} GB)')
+ disk_selected: str = ask_input(MSG_INFO_INSTALL_DISK_SELECT,
+ default=default_disk,
+ valid_responses=list(disks_available))
+
+ # create partitions
+ if not ask_yes_no(MSG_INFO_INSTALL_DISK_CONFIRM):
+ print(MSG_INFO_INSTALL_EXIT)
+ exit()
+
+ search_previous_installation(list(disks_available))
+
+ disk_details: disk.DiskDetails = create_partitions(disk_selected,
+ disks_available[disk_selected])
+
+ disk.filesystem_create(disk_details.partition['efi'], 'efi')
+ disk.filesystem_create(disk_details.partition['root'], 'ext4')
+
+ return disk_details
+
+
+def check_raid_install(disks_available: dict[str, int]) -> Union[str, None]:
+ """Ask user to select disks for RAID installation
+
+ Args:
+ disks_available (dict[str, int]): a list of available disks
+ """
+ if len(disks_available) < 2:
+ return None
+
+ if not ask_yes_no(MSG_INFO_INSTALL_RAID_CONFIGURE, default=True):
+ return None
+
+ def format_selection(disk_name: str) -> str:
+ return f'{disk_name}\t({bytes_to_gb(disks_available[disk_name])} GB)'
+
+ disk0, disk1 = list(disks_available)[0], list(disks_available)[1]
+ disks_selected: dict[str, int] = { disk0: disks_available[disk0],
+ disk1: disks_available[disk1] }
+
+ target_size: int = min(disks_selected[disk0], disks_selected[disk1])
+
+ print(MSG_INFO_INSTALL_DISKS_LIST)
+ for disk_name, disk_size in disks_selected.items():
+ disk_size_human: str = bytes_to_gb(disk_size)
+ print(f'\t{disk_name} ({disk_size_human} GB)')
+ if not ask_yes_no(MSG_INFO_INSTALL_RAID_FOUND_DISKS, default=True):
+ if not ask_yes_no(MSG_INFO_INSTALL_RAID_CHOOSE_DISKS, default=True):
+ return None
+ else:
+ disks_selected = {}
+ disk0 = select_entry(list(disks_available), 'Disks available:',
+ 'Select first disk:', format_selection)
+
+ disks_selected[disk0] = disks_available[disk0]
+ del disks_available[disk0]
+ disk1 = select_entry(list(disks_available), 'Remaining disks:',
+ 'Select second disk:', format_selection)
+ disks_selected[disk1] = disks_available[disk1]
+
+ target_size: int = min(disks_selected[disk0],
+ disks_selected[disk1])
+
+ # create partitions
+ if not ask_yes_no(MSG_INFO_INSTALL_RAID_CONFIRM):
+ print(MSG_INFO_INSTALL_EXIT)
+ exit()
+
+ search_previous_installation(list(disks_available))
+
+ disks: list[disk.DiskDetails] = []
+ for disk_selected in list(disks_selected):
+ print(f'Creating partitions on {disk_selected}')
+ disk_details = create_partitions(disk_selected, target_size,
+ prompt=False)
+ disk.filesystem_create(disk_details.partition['efi'], 'efi')
+
+ disks.append(disk_details)
+
+ print('Creating RAID array')
+ members = [disk.partition['root'] for disk in disks]
+ raid_details: raid.RaidDetails = raid.raid_create(members)
+ # raid init stuff
+ print('Updating initramfs')
+ raid.update_initramfs()
+ # end init
+ print('Creating filesystem on RAID array')
+ disk.filesystem_create(raid_details.name, 'ext4')
+
+ return raid_details
+
+
+def prepare_tmp_disr() -> None:
+ """Create temporary directories for installation
+ """
+ print('Creating temporary directories')
+ for dir in [DIR_ROOTFS_SRC, DIR_ROOTFS_DST, DIR_DST_ROOT]:
+ dirpath = Path(dir)
+ dirpath.mkdir(mode=0o755, parents=True)
+
+
+def setup_grub(root_dir: str) -> None:
+ """Install GRUB configurations
+
+ Args:
+ root_dir (str): a path to the root of target filesystem
+ """
+ print('Installing GRUB configuration files')
+ grub_cfg_main = f'{root_dir}/{grub.GRUB_DIR_MAIN}/grub.cfg'
+ grub_cfg_vars = f'{root_dir}/{grub.CFG_VYOS_VARS}'
+ grub_cfg_modules = f'{root_dir}/{grub.CFG_VYOS_MODULES}'
+ grub_cfg_menu = f'{root_dir}/{grub.CFG_VYOS_MENU}'
+ grub_cfg_options = f'{root_dir}/{grub.CFG_VYOS_OPTIONS}'
+
+ # create new files
+ render(grub_cfg_main, grub.TMPL_GRUB_MAIN, {})
+ grub.common_write(root_dir)
+ grub.vars_write(grub_cfg_vars, DEFAULT_BOOT_VARS)
+ grub.modules_write(grub_cfg_modules, [])
+ grub.write_cfg_ver(1, root_dir)
+ render(grub_cfg_menu, grub.TMPL_GRUB_MENU, {})
+ render(grub_cfg_options, grub.TMPL_GRUB_OPTS, {})
+
+
+def configure_authentication(config_file: str, password: str) -> None:
+ """Write encrypted password to config file
+
+ Args:
+ config_file (str): path of target config file
+ password (str): plaintext password
+
+ N.B. this can not be deferred by simply setting the plaintext password
+ and relying on the config mode script to process at boot, as the config
+ will not automatically be saved in that case, thus leaving the
+ plaintext exposed
+ """
+ encrypted_password = linux_context.hash(password)
+
+ with open(config_file) as f:
+ config_string = f.read()
+
+ config = ConfigTree(config_string)
+ config.set([
+ 'system', 'login', 'user', 'vyos', 'authentication',
+ 'encrypted-password'
+ ],
+ value=encrypted_password,
+ replace=True)
+ config.set_tag(['system', 'login', 'user'])
+
+ with open(config_file, 'w') as f:
+ f.write(config.to_string())
+
+def validate_signature(file_path: str, sign_type: str) -> None:
+ """Validate a file by signature and delete a signature file
+
+ Args:
+ file_path (str): a path to file
+ sign_type (str): a signature type
+ """
+ print('Validating signature')
+ signature_valid: bool = False
+ # validate with minisig
+ if sign_type == 'minisig':
+ for pubkey in [
+ '/usr/share/vyos/keys/vyos-release.minisign.pub',
+ '/usr/share/vyos/keys/vyos-backup.minisign.pub'
+ ]:
+ if run(f'minisign -V -q -p {pubkey} -m {file_path} -x {file_path}.minisig'
+ ) == 0:
+ signature_valid = True
+ break
+ Path(f'{file_path}.minisig').unlink()
+ # validate with GPG
+ if sign_type == 'asc':
+ if run(f'gpg --verify ${file_path}.asc ${file_path}') == 0:
+ signature_valid = True
+ Path(f'{file_path}.asc').unlink()
+
+ # warn or pass
+ if not signature_valid:
+ if not ask_yes_no(MSG_WARN_ISO_SIGN_INVALID, default=False):
+ exit(MSG_INFO_INSTALL_EXIT)
+ else:
+ print('Signature is valid')
+
+def download_file(local_file: str, remote_path: str, vrf: str,
+ username: str, password: str,
+ progressbar: bool = False, check_space: bool = False):
+ environ['REMOTE_USERNAME'] = username
+ environ['REMOTE_PASSWORD'] = password
+ if vrf is None:
+ download(local_file, remote_path, progressbar=progressbar,
+ check_space=check_space, raise_error=True)
+ else:
+ vrf_cmd = f'REMOTE_USERNAME={username} REMOTE_PASSWORD={password} \
+ ip vrf exec {vrf} {external_download_script} \
+ --local-file {local_file} --remote-path {remote_path}'
+ cmd(vrf_cmd)
+
+def image_fetch(image_path: str, vrf: str = None,
+ username: str = '', password: str = '',
+ no_prompt: bool = False) -> Path:
+ """Fetch an ISO image
+
+ Args:
+ image_path (str): a path, remote or local
+
+ Returns:
+ Path: a path to a local file
+ """
+ try:
+ # check a type of path
+ if urlparse(image_path).scheme:
+ # download an image
+ download_file(ISO_DOWNLOAD_PATH, image_path, vrf,
+ username, password,
+ progressbar=True, check_space=True)
+
+ # download a signature
+ sign_file = (False, '')
+ for sign_type in ['minisig', 'asc']:
+ try:
+ download_file(f'{ISO_DOWNLOAD_PATH}.{sign_type}',
+ f'{image_path}.{sign_type}', vrf,
+ username, password)
+ sign_file = (True, sign_type)
+ break
+ except Exception:
+ print(f'{sign_type} signature is not available')
+ # validate a signature if it is available
+ if sign_file[0]:
+ validate_signature(ISO_DOWNLOAD_PATH, sign_file[1])
+ else:
+ if (not no_prompt and
+ not ask_yes_no(MSG_WARN_ISO_SIGN_UNAVAL, default=False)):
+ cleanup()
+ exit(MSG_INFO_INSTALL_EXIT)
+
+ return Path(ISO_DOWNLOAD_PATH)
+ else:
+ local_path: Path = Path(image_path)
+ if local_path.is_file():
+ return local_path
+ else:
+ raise FileNotFoundError
+ except Exception as e:
+ print(f'The image cannot be fetched from: {image_path} {e}')
+ exit(1)
+
+
+def migrate_config() -> bool:
+ """Check for active config and ask user for migration
+
+ Returns:
+ bool: user's decision
+ """
+ active_config_path: Path = Path('/opt/vyatta/etc/config/config.boot')
+ if active_config_path.exists():
+ if ask_yes_no(MSG_INPUT_CONFIG_FOUND, default=True):
+ return True
+ return False
+
+
+def copy_ssh_host_keys() -> bool:
+ """Ask user to copy SSH host keys
+
+ Returns:
+ bool: user's decision
+ """
+ if ask_yes_no('Would you like to copy SSH host keys?', default=True):
+ return True
+ return False
+
+
+def cleanup(mounts: list[str] = [], remove_items: list[str] = []) -> None:
+ """Clean up after installation
+
+ Args:
+ mounts (list[str], optional): List of mounts to unmount.
+ Defaults to [].
+ remove_items (list[str], optional): List of files or directories
+ to remove. Defaults to [].
+ """
+ print('Cleaning up')
+ # clean up installation directory by default
+ mounts_all = disk_partitions(all=True)
+ for mounted_device in mounts_all:
+ if mounted_device.mountpoint.startswith(DIR_INSTALLATION) and not (
+ mounted_device.device in mounts or
+ mounted_device.mountpoint in mounts):
+ mounts.append(mounted_device.mountpoint)
+ # add installation dir to cleanup list
+ if DIR_INSTALLATION not in remove_items:
+ remove_items.append(DIR_INSTALLATION)
+ # also delete an ISO file
+ if Path(ISO_DOWNLOAD_PATH).exists(
+ ) and ISO_DOWNLOAD_PATH not in remove_items:
+ remove_items.append(ISO_DOWNLOAD_PATH)
+
+ if mounts:
+ print('Unmounting target filesystems')
+ for mountpoint in mounts:
+ disk.partition_umount(mountpoint)
+ if remove_items:
+ print('Removing temporary files')
+ for remove_item in remove_items:
+ if Path(remove_item).exists():
+ if Path(remove_item).is_file():
+ Path(remove_item).unlink()
+ if Path(remove_item).is_dir():
+ rmtree(remove_item)
+
+def cleanup_raid(details: raid.RaidDetails) -> None:
+ efiparts = []
+ for raid_disk in details.disks:
+ efiparts.append(raid_disk.partition['efi'])
+ cleanup([details.name, *efiparts],
+ ['/mnt/installation'])
+
+
+def is_raid_install(install_object: Union[disk.DiskDetails, raid.RaidDetails]) -> bool:
+ """Check if installation target is a RAID array
+
+ Args:
+ install_object (Union[disk.DiskDetails, raid.RaidDetails]): a target disk
+
+ Returns:
+ bool: True if it is a RAID array
+ """
+ if isinstance(install_object, raid.RaidDetails):
+ return True
+ return False
+
+
+def install_image() -> None:
+ """Install an image to a disk
+ """
+ if not image.is_live_boot():
+ exit(MSG_ERR_NOT_LIVE)
+
+ print(MSG_INFO_INSTALL_WELCOME)
+ if not ask_yes_no('Would you like to continue?'):
+ print(MSG_INFO_INSTALL_EXIT)
+ exit()
+
+ # configure image name
+ running_image_name: str = image.get_running_image()
+ while True:
+ image_name: str = ask_input(MSG_INPUT_IMAGE_NAME,
+ running_image_name)
+ if image.validate_name(image_name):
+ break
+ print(MSG_WARN_IMAGE_NAME_WRONG)
+
+ # ask for password
+ user_password: str = ask_input(MSG_INPUT_PASSWORD, default='vyos',
+ no_echo=True)
+
+ # ask for default console
+ console_type: str = ask_input(MSG_INPUT_CONSOLE_TYPE,
+ default='K',
+ valid_responses=['K', 'S', 'U'])
+ console_dict: dict[str, str] = {'K': 'tty', 'S': 'ttyS', 'U': 'ttyUSB'}
+
+ disks: dict[str, int] = find_disks()
+
+ install_target: Union[disk.DiskDetails, raid.RaidDetails, None] = None
+ try:
+ install_target = check_raid_install(disks)
+ if install_target is None:
+ install_target = ask_single_disk(disks)
+
+ # create directories for installation media
+ prepare_tmp_disr()
+
+ # mount target filesystem and create required dirs inside
+ print('Mounting new partitions')
+ if is_raid_install(install_target):
+ disk.partition_mount(install_target.name, DIR_DST_ROOT)
+ Path(f'{DIR_DST_ROOT}/boot/efi').mkdir(parents=True)
+ else:
+ disk.partition_mount(install_target.partition['root'], DIR_DST_ROOT)
+ Path(f'{DIR_DST_ROOT}/boot/efi').mkdir(parents=True)
+ disk.partition_mount(install_target.partition['efi'], f'{DIR_DST_ROOT}/boot/efi')
+
+ # a config dir. It is the deepest one, so the comand will
+ # create all the rest in a single step
+ print('Creating a configuration file')
+ target_config_dir: str = f'{DIR_DST_ROOT}/boot/{image_name}/rw/opt/vyatta/etc/config/'
+ Path(target_config_dir).mkdir(parents=True)
+ chown(target_config_dir, group='vyattacfg')
+ chmod_2775(target_config_dir)
+ # copy config
+ copy('/opt/vyatta/etc/config/config.boot', target_config_dir)
+ configure_authentication(f'{target_config_dir}/config.boot',
+ user_password)
+ Path(f'{target_config_dir}/.vyatta_config').touch()
+
+ # create a persistence.conf
+ Path(f'{DIR_DST_ROOT}/persistence.conf').write_text('/ union\n')
+
+ # copy system image and kernel files
+ print('Copying system image files')
+ for file in Path(DIR_KERNEL_SRC).iterdir():
+ if file.is_file():
+ copy(file, f'{DIR_DST_ROOT}/boot/{image_name}/')
+ copy(FILE_ROOTFS_SRC,
+ f'{DIR_DST_ROOT}/boot/{image_name}/{image_name}.squashfs')
+
+ # copy saved config data and SSH keys
+ # owner restored on copy of config data by chmod_2775, above
+ copy_previous_installation_data(f'{DIR_DST_ROOT}/boot/{image_name}/rw')
+
+ if is_raid_install(install_target):
+ write_dir: str = f'{DIR_DST_ROOT}/boot/{image_name}/rw'
+ raid.update_default(write_dir)
+
+ setup_grub(DIR_DST_ROOT)
+ # add information about version
+ grub.create_structure()
+ grub.version_add(image_name, DIR_DST_ROOT)
+ grub.set_default(image_name, DIR_DST_ROOT)
+ grub.set_console_type(console_dict[console_type], DIR_DST_ROOT)
+
+ if is_raid_install(install_target):
+ # add RAID specific modules
+ grub.modules_write(f'{DIR_DST_ROOT}/{grub.CFG_VYOS_MODULES}',
+ ['part_msdos', 'part_gpt', 'diskfilter',
+ 'ext2','mdraid1x'])
+ # install GRUB
+ if is_raid_install(install_target):
+ print('Installing GRUB to the drives')
+ l = install_target.disks
+ for disk_target in l:
+ disk.partition_mount(disk_target.partition['efi'], f'{DIR_DST_ROOT}/boot/efi')
+ grub.install(disk_target.name, f'{DIR_DST_ROOT}/boot/',
+ f'{DIR_DST_ROOT}/boot/efi',
+ id=f'VyOS (RAID disk {l.index(disk_target) + 1})')
+ disk.partition_umount(disk_target.partition['efi'])
+ else:
+ print('Installing GRUB to the drive')
+ grub.install(install_target.name, f'{DIR_DST_ROOT}/boot/',
+ f'{DIR_DST_ROOT}/boot/efi')
+
+ # umount filesystems and remove temporary files
+ if is_raid_install(install_target):
+ cleanup([install_target.name],
+ ['/mnt/installation'])
+ else:
+ cleanup([install_target.partition['efi'],
+ install_target.partition['root']],
+ ['/mnt/installation'])
+
+ # we are done
+ print(MSG_INFO_INSTALL_SUCCESS)
+ exit()
+
+ except Exception as err:
+ print(f'Unable to install VyOS: {err}')
+ # unmount filesystems and clenup
+ try:
+ if install_target is not None:
+ if is_raid_install(install_target):
+ cleanup_raid(install_target)
+ else:
+ cleanup([install_target.partition['efi'],
+ install_target.partition['root']],
+ ['/mnt/installation'])
+ except Exception as err:
+ print(f'Cleanup failed: {err}')
+
+ exit(1)
+
+
+@compat.grub_cfg_update
+def add_image(image_path: str, vrf: str = None, username: str = '',
+ password: str = '', no_prompt: bool = False) -> None:
+ """Add a new image
+
+ Args:
+ image_path (str): a path to an ISO image
+ """
+ if image.is_live_boot():
+ exit(MSG_ERR_LIVE)
+
+ # fetch an image
+ iso_path: Path = image_fetch(image_path, vrf, username, password, no_prompt)
+ try:
+ # mount an ISO
+ Path(DIR_ISO_MOUNT).mkdir(mode=0o755, parents=True)
+ disk.partition_mount(iso_path, DIR_ISO_MOUNT, 'iso9660')
+
+ # check sums
+ print('Validating image checksums')
+ if not Path(DIR_ISO_MOUNT).joinpath('sha256sum.txt').exists():
+ cleanup()
+ exit(MSG_ERR_IMPROPER_IMAGE)
+ if run(f'cd {DIR_ISO_MOUNT} && sha256sum --status -c sha256sum.txt'):
+ cleanup()
+ exit('Image checksum verification failed.')
+
+ # mount rootfs (to get a system version)
+ Path(DIR_ROOTFS_SRC).mkdir(mode=0o755, parents=True)
+ disk.partition_mount(f'{DIR_ISO_MOUNT}/live/filesystem.squashfs',
+ DIR_ROOTFS_SRC, 'squashfs')
+
+ cfg_ver: str = image.get_image_tools_version(DIR_ROOTFS_SRC)
+ version_name: str = image.get_image_version(DIR_ROOTFS_SRC)
+
+ disk.partition_umount(f'{DIR_ISO_MOUNT}/live/filesystem.squashfs')
+
+ if cfg_ver < SYSTEM_CFG_VER:
+ raise compat.DowngradingImageTools(
+ f'Adding image would downgrade image tools to v.{cfg_ver}; disallowed')
+
+ if not no_prompt:
+ image_name: str = ask_input(MSG_INPUT_IMAGE_NAME, version_name)
+ set_as_default: bool = ask_yes_no(MSG_INPUT_IMAGE_DEFAULT, default=True)
+ else:
+ image_name: str = version_name
+ set_as_default: bool = True
+
+ # find target directory
+ root_dir: str = disk.find_persistence()
+
+ # a config dir. It is the deepest one, so the comand will
+ # create all the rest in a single step
+ target_config_dir: str = f'{root_dir}/boot/{image_name}/rw/opt/vyatta/etc/config/'
+ # copy config
+ if no_prompt or migrate_config():
+ print('Copying configuration directory')
+ # copytree preserves perms but not ownership:
+ Path(target_config_dir).mkdir(parents=True)
+ chown(target_config_dir, group='vyattacfg')
+ chmod_2775(target_config_dir)
+ copytree('/opt/vyatta/etc/config/', target_config_dir,
+ dirs_exist_ok=True)
+ else:
+ Path(target_config_dir).mkdir(parents=True)
+ chown(target_config_dir, group='vyattacfg')
+ chmod_2775(target_config_dir)
+ Path(f'{target_config_dir}/.vyatta_config').touch()
+
+ target_ssh_dir: str = f'{root_dir}/boot/{image_name}/rw/etc/ssh/'
+ if no_prompt or copy_ssh_host_keys():
+ print('Copying SSH host keys')
+ Path(target_ssh_dir).mkdir(parents=True)
+ host_keys: list[str] = glob('/etc/ssh/ssh_host*')
+ for host_key in host_keys:
+ copy(host_key, target_ssh_dir)
+
+ # copy system image and kernel files
+ print('Copying system image files')
+ for file in Path(f'{DIR_ISO_MOUNT}/live').iterdir():
+ if file.is_file() and (file.match('initrd*') or
+ file.match('vmlinuz*')):
+ copy(file, f'{root_dir}/boot/{image_name}/')
+ copy(f'{DIR_ISO_MOUNT}/live/filesystem.squashfs',
+ f'{root_dir}/boot/{image_name}/{image_name}.squashfs')
+
+ # unmount an ISO and cleanup
+ cleanup([str(iso_path)])
+
+ # add information about version
+ grub.version_add(image_name, root_dir)
+ if set_as_default:
+ grub.set_default(image_name, root_dir)
+
+ except Exception as err:
+ # unmount an ISO and cleanup
+ cleanup([str(iso_path)])
+ exit(f'Whooops: {err}')
+
+
+def parse_arguments() -> Namespace:
+ """Parse arguments
+
+ Returns:
+ Namespace: a namespace with parsed arguments
+ """
+ parser: ArgumentParser = ArgumentParser(
+ description='Install new system images')
+ parser.add_argument('--action',
+ choices=['install', 'add'],
+ required=True,
+ help='action to perform with an image')
+ parser.add_argument('--vrf',
+ help='vrf name for image download')
+ parser.add_argument('--no-prompt', action='store_true',
+ help='perform action non-interactively')
+ parser.add_argument('--username', default='',
+ help='username for image download')
+ parser.add_argument('--password', default='',
+ help='password for image download')
+ parser.add_argument('--image-path',
+ help='a path (HTTP or local file) to an image that needs to be installed'
+ )
+ # parser.add_argument('--image_new_name', help='a new name for image')
+ args: Namespace = parser.parse_args()
+ # Validate arguments
+ if args.action == 'add' and not args.image_path:
+ exit('A path to image is required for add action')
+
+ return args
+
+
+if __name__ == '__main__':
+ try:
+ args: Namespace = parse_arguments()
+ if args.action == 'install':
+ install_image()
+ if args.action == 'add':
+ add_image(args.image_path, args.vrf,
+ args.username, args.password, args.no_prompt)
+
+ exit()
+
+ except KeyboardInterrupt:
+ print('Stopped by Ctrl+C')
+ cleanup()
+ exit()
+
+ except Exception as err:
+ exit(f'{err}')