From 8f94262e8fa2477700c50303ea6e2c6ddad72adb Mon Sep 17 00:00:00 2001 From: zsdc Date: Thu, 19 Jan 2023 20:18:42 +0200 Subject: image: T4516: Added system image tools This commit adds the whole set of system image tools written from the scratch in Python that allows performing all the operations on images: * check information * perform installation and deletion * versions management Also, it contains a new service that will update the GRUB menu and keep tracking its version in the future. WARNING: The commit contains non-reversible changes. Because of boot menu changes, it will not be possible to manage images from older VyOS versions after an update. --- Makefile | 1 - data/templates/grub/grub_common.j2 | 22 + data/templates/grub/grub_main.j2 | 7 + data/templates/grub/grub_menu.j2 | 5 + data/templates/grub/grub_modules.j2 | 3 + data/templates/grub/grub_options.j2 | 52 ++ data/templates/grub/grub_vars.j2 | 4 + data/templates/grub/grub_vyos_version.j2 | 22 + op-mode-definitions/add-system-image.xml.in | 62 -- op-mode-definitions/system-image.xml.in | 189 ++++++ python/vyos/image.py | 918 ++++++++++++++++++++++++++++ python/vyos/system/__init__.py | 16 + python/vyos/system/disk.py | 172 ++++++ python/vyos/system/grub.py | 336 ++++++++++ python/vyos/system/image.py | 197 ++++++ src/op_mode/image_info.py | 108 ++++ src/op_mode/image_installer.py | 557 +++++++++++++++++ src/op_mode/image_manager.py | 190 ++++++ src/system/grub_update.py | 211 +++++++ src/systemd/vyos-grub-update.service | 14 + 20 files changed, 3023 insertions(+), 63 deletions(-) create mode 100644 data/templates/grub/grub_common.j2 create mode 100644 data/templates/grub/grub_main.j2 create mode 100644 data/templates/grub/grub_menu.j2 create mode 100644 data/templates/grub/grub_modules.j2 create mode 100644 data/templates/grub/grub_options.j2 create mode 100644 data/templates/grub/grub_vars.j2 create mode 100644 data/templates/grub/grub_vyos_version.j2 delete mode 100644 op-mode-definitions/add-system-image.xml.in create mode 100644 op-mode-definitions/system-image.xml.in create mode 100644 python/vyos/image.py create mode 100644 python/vyos/system/__init__.py create mode 100644 python/vyos/system/disk.py create mode 100644 python/vyos/system/grub.py create mode 100644 python/vyos/system/image.py create mode 100644 src/op_mode/image_info.py create mode 100644 src/op_mode/image_installer.py create mode 100644 src/op_mode/image_manager.py create mode 100644 src/system/grub_update.py create mode 100644 src/systemd/vyos-grub-update.service diff --git a/Makefile b/Makefile index 6adb57930..23e060125 100644 --- a/Makefile +++ b/Makefile @@ -60,7 +60,6 @@ op_mode_definitions: $(op_xml_obj) rm -f $(OP_TMPL_DIR)/clear/interfaces/node.def rm -f $(OP_TMPL_DIR)/clear/node.def rm -f $(OP_TMPL_DIR)/delete/node.def - rm -f $(OP_TMPL_DIR)/set/node.def # XXX: ping, traceroute and mtr must be able to recursivly call themselves as the # options are provided from the scripts themselves diff --git a/data/templates/grub/grub_common.j2 b/data/templates/grub/grub_common.j2 new file mode 100644 index 000000000..78df3f48c --- /dev/null +++ b/data/templates/grub/grub_common.j2 @@ -0,0 +1,22 @@ +# load EFI video modules +if [ "${grub_platform}" == "efi" ]; then + insmod efi_gop + insmod efi_uga +fi + +# create and activate serial console +function setup_serial { + # initialize the first serial port by default + if [ "${console_type}" == "ttyS" ]; then + serial --unit=${console_num} + else + serial --unit=0 + fi + terminal_output --append serial console + terminal_input --append serial console +} + +setup_serial + +# find root device +#search --no-floppy --fs-uuid --set=root ${root_uuid} diff --git a/data/templates/grub/grub_main.j2 b/data/templates/grub/grub_main.j2 new file mode 100644 index 000000000..0c7ea0202 --- /dev/null +++ b/data/templates/grub/grub_main.j2 @@ -0,0 +1,7 @@ +load_env +insmod regexp + +for cfgfile in ${prefix}/grub.cfg.d/*-autoload.cfg +do + source ${cfgfile} +done diff --git a/data/templates/grub/grub_menu.j2 b/data/templates/grub/grub_menu.j2 new file mode 100644 index 000000000..e73005f5d --- /dev/null +++ b/data/templates/grub/grub_menu.j2 @@ -0,0 +1,5 @@ +for cfgfile in ${config_directory}/vyos-versions/*.cfg +do + source "${cfgfile}" +done +source ${config_directory}/50-vyos-options.cfg diff --git a/data/templates/grub/grub_modules.j2 b/data/templates/grub/grub_modules.j2 new file mode 100644 index 000000000..24b540c9d --- /dev/null +++ b/data/templates/grub/grub_modules.j2 @@ -0,0 +1,3 @@ +{% for mod_name in mods_list %} +insmod {{ mod_name | e }} +{% endfor %} diff --git a/data/templates/grub/grub_options.j2 b/data/templates/grub/grub_options.j2 new file mode 100644 index 000000000..c8a1472e1 --- /dev/null +++ b/data/templates/grub/grub_options.j2 @@ -0,0 +1,52 @@ +submenu "Boot options" { + submenu "Select boot mode" { + menuentry "Normal" { + set bootmode="normal" + export bootmode + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + menuentry "Password reset" { + set bootmode="pw_reset" + export bootmode + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + menuentry "System recovery" { + set bootmode="recovery" + export bootmode + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + menuentry "Load the whole root filesystem to RAM" { + set boot_toram="yes" + export boot_toram + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + } + submenu "Select console type" { + menuentry "tty (graphical)" { + set console_type="tty" + export console_type + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + menuentry "ttyS (serial)" { + set console_type="ttyS" + export console_type + setup_serial + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + menuentry "ttyUSB (USB serial)" { + set console_type="ttyUSB" + export console_type + setup_serial + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + } + menuentry "Enter console number" { + read console_num + export console_num + setup_serial + configfile ${prefix}/grub.cfg.d/*vyos-menu*.cfg + } + menuentry "Current: boot mode: ${bootmode}, console: ${console_type}${console_num}" { + echo + } +} diff --git a/data/templates/grub/grub_vars.j2 b/data/templates/grub/grub_vars.j2 new file mode 100644 index 000000000..e0002e8d8 --- /dev/null +++ b/data/templates/grub/grub_vars.j2 @@ -0,0 +1,4 @@ +{% for var_name, var_value in vars.items() %} +set {{ var_name | e }}="{{ var_value | e }}" +export {{ var_name | e }} +{% endfor %} diff --git a/data/templates/grub/grub_vyos_version.j2 b/data/templates/grub/grub_vyos_version.j2 new file mode 100644 index 000000000..6e8f45210 --- /dev/null +++ b/data/templates/grub/grub_vyos_version.j2 @@ -0,0 +1,22 @@ +{% set boot_opts_default = "boot=live rootdelay=5 noautologin net.ifnames=0 biosdevname=0 vyos-union=/boot/" + version_name %} +{% if boot_opts != '' %} +{% set boot_opts_rendered = boot_opts %} +{% else %} +{% set boot_opts_rendered = boot_opts_default %} +{% endif %} +menuentry "{{ version_name }}" --id {{ version_uuid }} { + set boot_opts="{{ boot_opts_rendered }}" + # load rootfs to RAM + if [ "${boot_toram}" == "yes" ]; then + set boot_opts="${boot_opts} toram" + fi + if [ "${bootmode}" == "pw_reset" ]; then + set boot_opts="${boot_opts} console=${console_type}${console_num} init=/opt/vyatta/sbin/standalone_root_pw_reset" + elif [ "${bootmode}" == "recovery" ]; then + set boot_opts="${boot_opts} console=${console_type}${console_num} init=/usr/bin/busybox init" + else + set boot_opts="${boot_opts} console=${console_type}${console_num}" + fi + linux "/boot/{{ version_name }}/vmlinuz" ${boot_opts} + initrd "/boot/{{ version_name }}/initrd.img" +} diff --git a/op-mode-definitions/add-system-image.xml.in b/op-mode-definitions/add-system-image.xml.in deleted file mode 100644 index 67d8aa3b4..000000000 --- a/op-mode-definitions/add-system-image.xml.in +++ /dev/null @@ -1,62 +0,0 @@ - - - - - - - Add item to a system facility - - - - - Add a new image to the system - - /path/to/vyos-image.iso "http://example.com/vyos-image.iso" - - - sudo ${vyatta_sbindir}/install-image --url "${4}" - - - - Download image via specified VRF - - vrf name - - - sudo ${vyatta_sbindir}/install-image --url "${4}" --vrf "${6}" - - - - Username for authentication - - - - - Password to use with authentication - - sudo ${vyatta_sbindir}/install-image --url "${4}" --vrf "${6}" --username "${8}" --password "${10}" - - - - - - - - Username for authentication - - - - - Password to use with authentication - - sudo ${vyatta_sbindir}/install-image --url "${4}" --username "${6}" --password "${8}" - - - - - - - - - - diff --git a/op-mode-definitions/system-image.xml.in b/op-mode-definitions/system-image.xml.in new file mode 100644 index 000000000..57aeb7bb4 --- /dev/null +++ b/op-mode-definitions/system-image.xml.in @@ -0,0 +1,189 @@ + + + + + Add an object + + + + + Add item to a system facility + + + + + Add a new image to the system + + /path/to/vyos-image.iso "http://example.com/vyos-image.iso" + + + sudo ${vyos_op_scripts_dir}/image_installer.py --action add --image_path "${4}" + + + + Download image via specified VRF + + vrf name + + + sudo ${vyos_op_scripts_dir}/image_installer.py --action add --image_path "${4}" --vrf "${6}" + + + + Username for authentication + + + + + Password to use with authentication + + sudo ${vyos_op_scripts_dir}/image_installer.py --action add --image_path "${4}" --vrf "${6}" --username "${8}" --password "${10}" + + + + + + + + Username for authentication + + + + + Password to use with authentication + + sudo ${vyos_op_scripts_dir}/image_installer.py --action add --image_path "${4}" --username "${6}" --password "${8}" + + + + + + + + + + + + Install a new system + + + + + Set system operational parameters + + + + + Set system image parameters + + + + + Set default image to boot. + + + + + sudo ${vyos_op_scripts_dir}/image_manager.py --action set --image_name "${5}" + + + + + + + + + + Install a new system + + + + + Install new system image to hard drive + + sudo ${vyos_op_scripts_dir}/image_installer.py --action install + + + + + + Delete an object + + + + + Delete system objects + + + + + Remove an installed image from the system + + + + + sudo ${vyos_op_scripts_dir}/image_manager.py --action delete --image_name "${4}" + + + + + + + + Rename an object + + + + + Rename a system object + + + + + System image to rename + + + + + + + + A new name for an image + + sudo ${vyos_op_scripts_dir}/image_manager.py --action rename --image_name "${4}" --image_new_name "${6}" + + + + + + + + + + Rename an object + + + + + Show system information + + + + + Show installed VyOS images + + sudo ${vyos_op_scripts_dir}/image_info.py show_images_summary + + + + Show details about installed VyOS images + + sudo ${vyos_op_scripts_dir}/image_info.py show_images_details + + + + + + + + diff --git a/python/vyos/image.py b/python/vyos/image.py new file mode 100644 index 000000000..cae25b891 --- /dev/null +++ b/python/vyos/image.py @@ -0,0 +1,918 @@ +#!/usr/bin/env python3 +# +# Copyright 2022 VyOS maintainers and contributors +# +# 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 . + +from json import loads as json_loads +from os import sync +from pathlib import Path +from re import MULTILINE, compile as re_compile +from tempfile import TemporaryDirectory +from typing import TypedDict, Union +from uuid import uuid5, NAMESPACE_URL + +from psutil import disk_partitions + +from vyos.template import render +from vyos.util import run, cmd +from vyos import version + +# Define variables +GRUB_DIR_MAIN: str = '/boot/grub' +GRUB_DIR_VYOS: str = f'{GRUB_DIR_MAIN}/grub.cfg.d' +CFG_VYOS_HEADER: str = f'{GRUB_DIR_VYOS}/00-vyos-header.cfg' +CFG_VYOS_MODULES: str = f'{GRUB_DIR_VYOS}/10-vyos-modules-autoload.cfg' +CFG_VYOS_VARS: str = f'{GRUB_DIR_VYOS}/20-vyos-defaults-autoload.cfg' +CFG_VYOS_COMMON: str = f'{GRUB_DIR_VYOS}/25-vyos-common-autoload.cfg' +CFG_VYOS_PLATFORM: str = f'{GRUB_DIR_VYOS}/30-vyos-platform-autoload.cfg' +CFG_VYOS_MENU: str = f'{GRUB_DIR_VYOS}/40-vyos-menu-autoload.cfg' +CFG_VYOS_OPTIONS: str = f'{GRUB_DIR_VYOS}/50-vyos-options.cfg' +GRUB_DIR_VYOS_VERS: str = f'{GRUB_DIR_VYOS}/vyos-versions' + +TMPL_VYOS_VERSION: str = 'grub/grub_vyos_version.j2' +TMPL_GRUB_VARS: str = 'grub/grub_vars.j2' +TMPL_GRUB_MAIN: str = 'grub/grub_main.j2' +TMPL_GRUB_MENU: str = 'grub/grub_menu.j2' +TMPL_GRUB_MODULES: str = 'grub/grub_modules.j2' +TMPL_GRUB_OPTS: str = 'grub/grub_options.j2' +TMPL_GRUB_COMMON: str = 'grub/grub_common.j2' + +# prepare regexes +REGEX_GRUB_VARS: str = r'^set (?P.+)=[\'"]?(?P.*)(?.+)$' +REGEX_KERNEL_CMDLINE: str = r'^BOOT_IMAGE=/(?Pboot|live)/((?P.+)/)?vmlinuz.*$' + + +# structures definitions +class ImageDetails(TypedDict): + name: str + version: str + disk_ro: int + disk_rw: int + disk_total: int + + +class BootDetails(TypedDict): + image_default: str + image_running: str + images_available: list[str] + console_type: str + console_num: int + + +class Grub: + + def install(self, drive_path: str, boot_dir: str, + efi_dir: str) -> None: + """Install GRUB for both BIOS and EFI modes (hybrid boot) + + Args: + drive_path (str): path to a drive where GRUB must be installed + boot_dir (str): a path to '/boot' directory + efi_dir (str): a path to '/boot/efi' directory + """ + commands: list[str] = [ + f'grub-install --no-floppy --target=i386-pc --boot-directory={boot_dir} \ + {drive_path} --force', + f'grub-install --no-floppy --recheck --target=x86_64-efi \ + --force-extra-removable --boot-directory={boot_dir} \ + --efi-directory={efi_dir} --bootloader-id="VyOS" \ + --no-uefi-secure-boot' + ] + for command in commands: + run(command) + + def gen_version_uuid(self, version_name: str) -> str: + """Generate unique ID from version name + + Use UUID5 / NAMESPACE_URL with prefix `uuid5-` + + Args: + version_name (str): version name + + Returns: + str: generated unique ID + """ + ver_uuid = uuid5(NAMESPACE_URL, version_name) + ver_id = f'uuid5-{ver_uuid}' + return ver_id + + def version_add(self, + version_name: str, + root_dir: str = '', + boot_opts: str = '') -> None: + """Add a new VyOS version to GRUB loader configuration + + Args: + vyos_version (str): VyOS version name + root_dir (str): an optional path to the root directory. + Defaults to empty. + boot_opts (str): an optional boot options for Linux kernel. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + version_config: str = f'{root_dir}/{GRUB_DIR_VYOS_VERS}/{version_name}.cfg' + render( + version_config, TMPL_VYOS_VERSION, { + 'version_name': version_name, + 'version_uuid': self.gen_version_uuid(version_name), + 'boot_opts': boot_opts + }) + + def version_del(self, vyos_version: str, root_dir: str = '') -> None: + """Delete a VyOS version from GRUB loader configuration + + Args: + vyos_version (str): VyOS version name + root_dir (str): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + version_config = f'{root_dir}/{GRUB_DIR_VYOS_VERS}/{vyos_version}.cfg' + Path(version_config).unlink(missing_ok=True) + + def grub_version_list(self, root_dir: str = '') -> list[str]: + """Generate a list with installed VyOS versions + + Args: + root_dir (str): an optional path to the root directory. + Defaults to empty. + + Returns: + list: A list with versions names + """ + if not root_dir: + root_dir = find_presistence() + versions_files = Path(f'{root_dir}/{GRUB_DIR_VYOS_VERS}').glob('*.cfg') + versions_list: list[str] = [] + for file in versions_files: + versions_list.append(file.stem) + return versions_list + + def grub_read_env(self, env_file: str = '') -> dict[str, str]: + """Read GRUB environment + + Args: + env_file (str, optional): a path to grub environment file. + Defaults to empty. + + Returns: + dict: dictionary with GRUB environment + """ + if not env_file: + root_dir: str = find_presistence() + env_file = f'{root_dir}/{GRUB_DIR_MAIN}/grubenv' + + env_content: str = cmd(f'grub-editenv {env_file} list').splitlines() + regex_filter = re_compile( + r'^(?P.*)=(?P.*)$') + env_dict: dict[str, str] = {} + for env_item in env_content: + search_result = regex_filter.fullmatch(env_item) + if search_result: + search_result_dict: dict[str, str] = search_result.groupdict() + variable_name: str = search_result_dict.get('variable_name', '') + variable_value: str = search_result_dict.get( + 'variable_value', '') + if variable_name and variable_value: + env_dict.update({variable_name: variable_value}) + return env_dict + + def grub_get_cfg_ver(self, root_dir: str = '') -> int: + """Get current version of GRUB configuration + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + + Returns: + int: a configuration version + """ + if not root_dir: + root_dir = find_presistence() + + cfg_ver: Union[str, None] = grub_vars_read( + f'{root_dir}/{CFG_VYOS_HEADER}').get('VYOS_CFG_VER') + if cfg_ver: + cfg_ver_int: int = int(cfg_ver) + else: + cfg_ver_int: int = 0 + return cfg_ver_int + + def grub_write_cfg_ver(self, cfg_ver: int, root_dir: str = '') -> None: + """Write version number of GRUB configuration + + Args: + cfg_ver (int): a version number to write + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + + Returns: + int: a configuration version + """ + if not root_dir: + root_dir = find_presistence() + + vars_file: str = f'{root_dir}/{CFG_VYOS_HEADER}' + vars_current: dict[str, str] = grub_vars_read(vars_file) + vars_current['VYOS_CFG_VER'] = str(cfg_ver) + grub_vars_write(vars_file, vars_current) + + def grub_vars_read(self, grub_cfg: str) -> dict[str, str]: + """Read variables from a GRUB configuration file + + Args: + grub_cfg (str): a path to the GRUB config file + + Returns: + dict: a dictionary with variables and values + """ + vars_dict: dict[str, str] = {} + regex_filter = re_compile(REGEX_GRUB_VARS) + try: + config_text: list[str] = Path(grub_cfg).read_text().splitlines() + except FileNotFoundError: + return vars_dict + for line in config_text: + search_result = regex_filter.fullmatch(line) + if search_result: + search_dict = search_result.groupdict() + variable_name: str = search_dict.get('variable_name', '') + variable_value: str = search_dict.get('variable_value', '') + if variable_name and variable_value: + vars_dict.update({variable_name: variable_value}) + return vars_dict + + def grub_modules_read(self, grub_cfg: str) -> list[str]: + """Read modules list from a GRUB configuration file + + Args: + grub_cfg (str): a path to the GRUB config file + + Returns: + list: a list with modules to load + """ + mods_list: list[str] = [] + regex_filter = re_compile(REGEX_GRUB_MODULES, MULTILINE) + try: + config_text = Path(grub_cfg).read_text() + except FileNotFoundError: + return mods_list + mods_list = regex_filter.findall(config_text) + + return mods_list + + def grub_modules_write(self, grub_cfg: str, mods_list: list[str]) -> None: + """Write modules list to a GRUB configuration file (overwrite everything) + + Args: + grub_cfg (str): a path to GRUB configuration file + mods_list (list): a list with modules to load + """ + render(grub_cfg, TMPL_GRUB_MODULES, {'mods_list': mods_list}) + + def grub_vars_write(self, grub_cfg: str, grub_vars: dict[str, str]) -> None: + """Write variables to a GRUB configuration file (overwrite everything) + + Args: + grub_cfg (str): a path to GRUB configuration file + grub_vars (dict): a dictionary with new variables + """ + render(grub_cfg, TMPL_GRUB_VARS, {'vars': grub_vars}) + + def grub_set_default(self, version_name: str, root_dir: str = '') -> None: + """Set version as default boot entry + + Args: + version_name (str): versio name + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + + vars_file = f'{root_dir}/{CFG_VYOS_VARS}' + vars_current = grub_vars_read(vars_file) + vars_current['default'] = self.gen_version_uuid(version_name) + grub_vars_write(vars_file, vars_current) + + def grub_common_write(self, root_dir: str = '') -> None: + """Write common GRUB configuration file (overwrite everything) + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + common_config = f'{root_dir}/{CFG_VYOS_COMMON}' + render(common_config, TMPL_GRUB_COMMON, {}) + + def create_grub_structure(self, root_dir: str = '') -> None: + """Create GRUB directories structure + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to ''. + """ + if not root_dir: + root_dir = find_presistence() + + Path(f'{root_dir}/GRUB_DIR_VYOS_VERS').mkdir(parents=True, + exist_ok=True) + + +def disk_cleanup(drive_path: str) -> None: + """Clean up disk partition table (MBR and GPT) + Zeroize primary and secondary headers - first and last 17408 bytes + (512 bytes * 34 LBA) on a drive + + Args: + drive_path (str): path to a drive that needs to be cleaned + """ + # with open(drive_path, 'w+b') as drive: + # drive.seek(0) + # drive.write(b'0' * 17408) + # drive.seek(-17408, 2) + # drive.write(b'0' * 17408) + # # update partitons in kernel + # sync() + # run(f'partprobe {drive_path}') + run(f'sgdisk -Z {drive_path}') + + +def bootmode_detect() -> str: + """Detect system boot mode + + Returns: + str: 'bios' or 'efi' + """ + if Path('/sys/firmware/efi/').exists(): + return 'efi' + else: + return 'bios' + + +def parttable_create(drive_path: str, root_size: int) -> None: + """Create a hybrid MBR/GPT partition table + 0-2047 first sectors are free + 2048-4095 sectors - BIOS Boot Partition + 4096 + 256 MB - EFI system partition + Everything else till the end of a drive - Linux partition + + Args: + drive_path (str): path to a drive + """ + if not root_size: + root_size_text: str = '+100%' + else: + root_size_text: str = str(root_size) + command = f'sgdisk -a1 -n1:2048:4095 -t1:EF02 -n2:4096:+256M -t2:EF00 \ + -n3:0:+{root_size_text}K -t3:8300 {drive_path}' + + run(command) + # update partitons in kernel + sync() + run(f'partprobe {drive_path}') + + +def filesystem_create(partition: str, fstype: str) -> None: + """Create a filesystem on a partition + + Args: + partition (str): path to a partition (for example: '/dev/sda1') + fstype (str): filesystem type ('efi' or 'ext4') + """ + if fstype == 'efi': + command = 'mkfs -t fat -n EFI' + run(f'{command} {partition}') + if fstype == 'ext4': + command = 'mkfs -t ext4 -L persistence' + run(f'{command} {partition}') + + +def partition_mount(partition: str, + path: str, + fsype: str = '', + overlay_params: dict[str, str] = {}) -> None: + """Mount a partition into a path + + Args: + partition (str): path to a partition (for example: '/dev/sda1') + path (str): a path where to mount + fsype (str): optionally, set fstype ('squashfs', 'overlay', 'iso9660') + overlay_params (dict): optionally, set overlay parameters. + Defaults to None. + """ + if fsype in ['squashfs', 'iso9660']: + command: str = f'mount -o loop,ro -t {fsype} {partition} {path}' + if fsype == 'overlay' and overlay_params: + command: str = f'mount -t overlay -o noatime,\ + upperdir={overlay_params["upperdir"]},\ + lowerdir={overlay_params["lowerdir"]},\ + workdir={overlay_params["workdir"]} overlay {path}' + + else: + command = f'mount {partition} {path}' + + run(command) + + +def partition_umount(partition: str = '', path: str = '') -> None: + """Umount a partition by a partition name or a path + + Args: + partition (str): path to a partition (for example: '/dev/sda1') + path (str): a path where a partition is mounted + """ + if partition: + command = f'umount {partition}' + run(command) + if path: + command = f'umount {path}' + run(command) + + +def grub_install(drive_path: str, boot_dir: str, efi_dir: str) -> None: + """Install GRUB for both BIOS and EFI modes (hybrid boot) + + Args: + drive_path (str): path to a drive where GRUB must be installed + boot_dir (str): a path to '/boot' directory + efi_dir (str): a path to '/boot/efi' directory + """ + commands: list[str] = [ + f'grub-install --no-floppy --target=i386-pc --boot-directory={boot_dir} \ + {drive_path} --force' , + f'grub-install --no-floppy --recheck --target=x86_64-efi \ + --force-extra-removable --boot-directory={boot_dir} \ + --efi-directory={efi_dir} --bootloader-id="VyOS" \ + --no-uefi-secure-boot' + ] + for command in commands: + run(command) + + +def find_presistence() -> str: + """Find a mountpoint for persistence storage + + Returns: + str: Path where 'persistance' pertition is mounted, Empty if not found + """ + mounted_partitions = disk_partitions() + for partition in mounted_partitions: + if partition.mountpoint.endswith('/persistence'): + return partition.mountpoint + return '' + + +def find_device(mountpoint: str) -> str: + """Find a device by mountpoint + + Returns: + str: Path to device, Empty if not found + """ + mounted_partitions = disk_partitions() + for partition in mounted_partitions: + if partition.mountpoint == mountpoint: + return partition.mountpoint + return '' + + +def gen_version_uuid(version_name: str) -> str: + """Generate unique ID from version name + + Use UUID5 / NAMESPACE_URL with prefix `uuid5-` + + Args: + version_name (str): version name + + Returns: + str: generated unique ID + """ + ver_uuid = uuid5(NAMESPACE_URL, version_name) + ver_id = f'uuid5-{ver_uuid}' + return ver_id + + +def grub_version_add(version_name: str, + root_dir: str = '', + boot_opts: str = '') -> None: + """Add a new VyOS version to GRUB loader configuration + + Args: + vyos_version (str): VyOS version name + root_dir (str): an optional path to the root directory. + Defaults to empty. + boot_opts (str): an optional boot options for Linux kernel. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + version_config: str = f'{root_dir}/{GRUB_DIR_VYOS_VERS}/{version_name}.cfg' + render( + version_config, TMPL_VYOS_VERSION, { + 'version_name': version_name, + 'version_uuid': gen_version_uuid(version_name), + 'boot_opts': boot_opts + }) + + +def grub_version_del(vyos_version: str, root_dir: str = '') -> None: + """Delete a VyOS version from GRUB loader configuration + + Args: + vyos_version (str): VyOS version name + root_dir (str): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + version_config = f'{root_dir}/{GRUB_DIR_VYOS_VERS}/{vyos_version}.cfg' + Path(version_config).unlink(missing_ok=True) + + +def grub_version_list(root_dir: str = '') -> list[str]: + """Generate a list with installed VyOS versions + + Args: + root_dir (str): an optional path to the root directory. + Defaults to empty. + + Returns: + list: A list with versions names + """ + if not root_dir: + root_dir = find_presistence() + versions_files = Path(f'{root_dir}/{GRUB_DIR_VYOS_VERS}').glob('*.cfg') + versions_list: list[str] = [] + for file in versions_files: + versions_list.append(file.stem) + return versions_list + + +def grub_read_env(env_file: str = '') -> dict[str, str]: + """Read GRUB environment + + Args: + env_file (str, optional): a path to grub environment file. + Defaults to empty. + + Returns: + dict: dictionary with GRUB environment + """ + if not env_file: + root_dir: str = find_presistence() + env_file = f'{root_dir}/{GRUB_DIR_MAIN}/grubenv' + + env_content: str = cmd(f'grub-editenv {env_file} list').splitlines() + regex_filter = re_compile(r'^(?P.*)=(?P.*)$') + env_dict: dict[str, str] = {} + for env_item in env_content: + search_result = regex_filter.fullmatch(env_item) + if search_result: + search_result_dict: dict[str, str] = search_result.groupdict() + variable_name: str = search_result_dict.get('variable_name', '') + variable_value: str = search_result_dict.get('variable_value', '') + if variable_name and variable_value: + env_dict.update({variable_name: variable_value}) + return env_dict + + +def grub_get_cfg_ver(root_dir: str = '') -> int: + """Get current version of GRUB configuration + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + + Returns: + int: a configuration version + """ + if not root_dir: + root_dir = find_presistence() + + cfg_ver: Union[str, None] = grub_vars_read( + f'{root_dir}/{CFG_VYOS_HEADER}').get('VYOS_CFG_VER') + if cfg_ver: + cfg_ver_int: int = int(cfg_ver) + else: + cfg_ver_int: int = 0 + return cfg_ver_int + + +def grub_write_cfg_ver(cfg_ver: int, root_dir: str = '') -> None: + """Write version number of GRUB configuration + + Args: + cfg_ver (int): a version number to write + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + + Returns: + int: a configuration version + """ + if not root_dir: + root_dir = find_presistence() + + vars_file: str = f'{root_dir}/{CFG_VYOS_HEADER}' + vars_current: dict[str, str] = grub_vars_read(vars_file) + vars_current['VYOS_CFG_VER'] = str(cfg_ver) + grub_vars_write(vars_file, vars_current) + + +def grub_vars_read(grub_cfg: str) -> dict[str, str]: + """Read variables from a GRUB configuration file + + Args: + grub_cfg (str): a path to the GRUB config file + + Returns: + dict: a dictionary with variables and values + """ + vars_dict: dict[str, str] = {} + regex_filter = re_compile(REGEX_GRUB_VARS) + try: + config_text: list[str] = Path(grub_cfg).read_text().splitlines() + except FileNotFoundError: + return vars_dict + for line in config_text: + search_result = regex_filter.fullmatch(line) + if search_result: + search_dict = search_result.groupdict() + variable_name: str = search_dict.get('variable_name', '') + variable_value: str = search_dict.get('variable_value', '') + if variable_name and variable_value: + vars_dict.update({variable_name: variable_value}) + return vars_dict + + +def grub_modules_read(grub_cfg: str) -> list[str]: + """Read modules list from a GRUB configuration file + + Args: + grub_cfg (str): a path to the GRUB config file + + Returns: + list: a list with modules to load + """ + mods_list: list[str] = [] + regex_filter = re_compile(REGEX_GRUB_MODULES, MULTILINE) + try: + config_text = Path(grub_cfg).read_text() + except FileNotFoundError: + return mods_list + mods_list = regex_filter.findall(config_text) + + return mods_list + + +def grub_modules_write(grub_cfg: str, mods_list: list[str]) -> None: + """Write modules list to a GRUB configuration file (overwrite everything) + + Args: + grub_cfg (str): a path to GRUB configuration file + mods_list (list): a list with modules to load + """ + render(grub_cfg, TMPL_GRUB_MODULES, {'mods_list': mods_list}) + + +def grub_vars_write(grub_cfg: str, grub_vars: dict[str, str]) -> None: + """Write variables to a GRUB configuration file (overwrite everything) + + Args: + grub_cfg (str): a path to GRUB configuration file + grub_vars (dict): a dictionary with new variables + """ + render(grub_cfg, TMPL_GRUB_VARS, {'vars': grub_vars}) + + +def grub_set_default(version_name: str, root_dir: str = '') -> None: + """Set version as default boot entry + + Args: + version_name (str): versio name + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + + vars_file = f'{root_dir}/{CFG_VYOS_VARS}' + vars_current = grub_vars_read(vars_file) + vars_current['default'] = gen_version_uuid(version_name) + grub_vars_write(vars_file, vars_current) + + +def grub_common_write(root_dir: str = '') -> None: + """Write common GRUB configuration file (overwrite everything) + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = find_presistence() + common_config = f'{root_dir}/{CFG_VYOS_COMMON}' + render(common_config, TMPL_GRUB_COMMON, {}) + + +def raid_create(raid_name: str, + raid_members: list[str], + raid_level: str = 'raid1') -> None: + """Create a RAID array + + Args: + raid_name (str): a name of array (data, backup, test, etc.) + raid_members (list[str]): a list of array members + raid_level (str, optional): an array level. Defaults to 'raid1'. + """ + raid_devices_num: int = len(raid_members) + raid_members_str: str = ' '.join(raid_members) + command: str = f'mdadm --create /dev/md/{raid_name} --metadata=1.2 \ + --raid-devices={raid_devices_num} --level={raid_level} \ + {raid_members_str}' + + run(command) + + +def disks_size() -> dict[str, int]: + """Get a dictionary with physical disks and their sizes + + Returns: + dict[str, int]: a dictionary with name: size mapping + """ + disks_size: dict[str, int] = {} + lsblk: str = cmd('lsblk -Jbp') + blk_list = json_loads(lsblk) + for device in blk_list.get('blockdevices'): + if device['type'] == 'disk': + disks_size.update({device['name']: device['size']}) + return disks_size + + +def image_get_version(image_name: str, root_dir: str) -> str: + """Extract version name from rootfs based on image name + + Args: + image_name (str): a name of image (from boot menu) + root_dir (str): a root directory of persistence storage + + Returns: + str: version name + """ + squashfs_file: str = next( + Path(f'{root_dir}/boot/{image_name}').glob('*.squashfs')).as_posix() + with TemporaryDirectory() as squashfs_mounted: + partition_mount(squashfs_file, squashfs_mounted, 'squashfs') + version_file: str = Path( + f'{squashfs_mounted}/opt/vyatta/etc/version').read_text() + partition_umount(squashfs_file) + version_name: str = version_file.lstrip('Version: ').strip() + + return version_name + + +def image_details(image_name: str, root_dir: str = '') -> ImageDetails: + """Return information about image + + Args: + image_name (str): a name of an image + root_dir (str, optional): an optional path to the root directory. + Defaults to ''. + + Returns: + ImageDetails: a dictionary with details about an image (name, size) + """ + if not root_dir: + root_dir = find_presistence() + + image_version: str = image_get_version(image_name, root_dir) + + image_path: Path = Path(f'{root_dir}/boot/{image_name}') + image_path_rw: Path = Path(f'{root_dir}/boot/{image_name}/rw') + + image_disk_ro: int = int() + for item in image_path.iterdir(): + if not item.is_symlink(): + image_disk_ro += item.stat().st_size + + image_disk_rw: int = int() + for item in image_path_rw.rglob('*'): + if not item.is_symlink(): + image_disk_rw += item.stat().st_size + + image_details: ImageDetails = { + 'name': image_name, + 'version': image_version, + 'disk_ro': image_disk_ro, + 'disk_rw': image_disk_rw, + 'disk_total': image_disk_ro + image_disk_rw + } + + return image_details + + +def get_running_image() -> str: + """Find currently running image name + + Returns: + str: image name + """ + running_image: str = '' + regex_filter = re_compile(REGEX_KERNEL_CMDLINE) + cmdline: str = Path('/proc/cmdline').read_text() + running_image_result = regex_filter.match(cmdline) + if running_image_result: + running_image: str = running_image_result.groupdict().get( + 'image_version', '') + # we need to have a fallbak for live systems + if not running_image: + running_image: str = version.get_version() + + return running_image + + +def get_default_image(root_dir: str = '') -> str: + """Get default boot entry + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + Returns: + str: a version name + """ + if not root_dir: + root_dir = find_presistence() + + vars_file: str = f'{root_dir}/{CFG_VYOS_VARS}' + vars_current: dict[str, str] = grub_vars_read(vars_file) + default_uuid: str = vars_current.get('default', '') + if default_uuid: + images_list: list[str] = Grub.grub_version_list(root_dir) + for image_name in images_list: + if default_uuid == gen_version_uuid(image_name): + return image_name + return '' + else: + return '' + + +def image_name_validate(image_name: str) -> bool: + """Validate image name + + Args: + image_name (str): suggested image name + + Returns: + bool: validation result + """ + regex_filter = re_compile(r'^[\w\.+-]{1,32}$') + if regex_filter.match(image_name): + return True + return False + + +def is_live_boot() -> bool: + """Detect live booted system + + Returns: + bool: True if the system currently booted in live mode + """ + regex_filter = re_compile(REGEX_KERNEL_CMDLINE) + cmdline: str = Path('/proc/cmdline').read_text() + running_image_result = regex_filter.match(cmdline) + if running_image_result: + boot_type: str = running_image_result.groupdict().get('boot_type', '') + if boot_type == 'live': + return True + return False + + +def create_grub_structure(root_dir: str = '') -> None: + """Create GRUB directories structure + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to ''. + """ + if not root_dir: + root_dir = find_presistence() + + Path(f'{root_dir}/GRUB_DIR_VYOS_VERS').mkdir(parents=True, exist_ok=True) diff --git a/python/vyos/system/__init__.py b/python/vyos/system/__init__.py new file mode 100644 index 000000000..403738e20 --- /dev/null +++ b/python/vyos/system/__init__.py @@ -0,0 +1,16 @@ +# Copyright 2022 VyOS maintainers and contributors +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see . + +__all_: list[str] = ['disk', 'grub', 'image'] diff --git a/python/vyos/system/disk.py b/python/vyos/system/disk.py new file mode 100644 index 000000000..e20cf32be --- /dev/null +++ b/python/vyos/system/disk.py @@ -0,0 +1,172 @@ +# Copyright 2022 VyOS maintainers and contributors +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see . + +from json import loads as json_loads +from os import sync + +from psutil import disk_partitions + +from vyos.util import run, cmd + + +def disk_cleanup(drive_path: str) -> None: + """Clean up disk partition table (MBR and GPT) + Zeroize primary and secondary headers - first and last 17408 bytes + (512 bytes * 34 LBA) on a drive + + Args: + drive_path (str): path to a drive that needs to be cleaned + """ + run(f'sgdisk -Z {drive_path}') + + +def find_persistence() -> str: + """Find a mountpoint for persistence storage + + Returns: + str: Path where 'persistance' pertition is mounted, Empty if not found + """ + mounted_partitions = disk_partitions() + for partition in mounted_partitions: + if partition.mountpoint.endswith('/persistence'): + return partition.mountpoint + return '' + + +def parttable_create(drive_path: str, root_size: int) -> None: + """Create a hybrid MBR/GPT partition table + 0-2047 first sectors are free + 2048-4095 sectors - BIOS Boot Partition + 4096 + 256 MB - EFI system partition + Everything else till the end of a drive - Linux partition + + Args: + drive_path (str): path to a drive + """ + if not root_size: + root_size_text: str = '+100%' + else: + root_size_text: str = str(root_size) + command = f'sgdisk -a1 -n1:2048:4095 -t1:EF02 -n2:4096:+256M -t2:EF00 \ + -n3:0:+{root_size_text}K -t3:8300 {drive_path}' + + run(command) + # update partitons in kernel + sync() + run(f'partprobe {drive_path}') + + +def filesystem_create(partition: str, fstype: str) -> None: + """Create a filesystem on a partition + + Args: + partition (str): path to a partition (for example: '/dev/sda1') + fstype (str): filesystem type ('efi' or 'ext4') + """ + if fstype == 'efi': + command = 'mkfs -t fat -n EFI' + run(f'{command} {partition}') + if fstype == 'ext4': + command = 'mkfs -t ext4 -L persistence' + run(f'{command} {partition}') + + +def partition_mount(partition: str, + path: str, + fsype: str = '', + overlay_params: dict[str, str] = {}) -> None: + """Mount a partition into a path + + Args: + partition (str): path to a partition (for example: '/dev/sda1') + path (str): a path where to mount + fsype (str): optionally, set fstype ('squashfs', 'overlay', 'iso9660') + overlay_params (dict): optionally, set overlay parameters. + Defaults to None. + """ + if fsype in ['squashfs', 'iso9660']: + command: str = f'mount -o loop,ro -t {fsype} {partition} {path}' + if fsype == 'overlay' and overlay_params: + command: str = f'mount -t overlay -o noatime,\ + upperdir={overlay_params["upperdir"]},\ + lowerdir={overlay_params["lowerdir"]},\ + workdir={overlay_params["workdir"]} overlay {path}' + + else: + command = f'mount {partition} {path}' + + run(command) + + +def partition_umount(partition: str = '', path: str = '') -> None: + """Umount a partition by a partition name or a path + + Args: + partition (str): path to a partition (for example: '/dev/sda1') + path (str): a path where a partition is mounted + """ + if partition: + command = f'umount {partition}' + run(command) + if path: + command = f'umount {path}' + run(command) + + +def find_device(mountpoint: str) -> str: + """Find a device by mountpoint + + Returns: + str: Path to device, Empty if not found + """ + mounted_partitions = disk_partitions() + for partition in mounted_partitions: + if partition.mountpoint == mountpoint: + return partition.mountpoint + return '' + + +def raid_create(raid_name: str, + raid_members: list[str], + raid_level: str = 'raid1') -> None: + """Create a RAID array + + Args: + raid_name (str): a name of array (data, backup, test, etc.) + raid_members (list[str]): a list of array members + raid_level (str, optional): an array level. Defaults to 'raid1'. + """ + raid_devices_num: int = len(raid_members) + raid_members_str: str = ' '.join(raid_members) + command: str = f'mdadm --create /dev/md/{raid_name} --metadata=1.2 \ + --raid-devices={raid_devices_num} --level={raid_level} \ + {raid_members_str}' + + run(command) + + +def disks_size() -> dict[str, int]: + """Get a dictionary with physical disks and their sizes + + Returns: + dict[str, int]: a dictionary with name: size mapping + """ + disks_size: dict[str, int] = {} + lsblk: str = cmd('lsblk -Jbp') + blk_list = json_loads(lsblk) + for device in blk_list.get('blockdevices'): + if device['type'] == 'disk': + disks_size.update({device['name']: device['size']}) + return disks_size diff --git a/python/vyos/system/grub.py b/python/vyos/system/grub.py new file mode 100644 index 000000000..11c214675 --- /dev/null +++ b/python/vyos/system/grub.py @@ -0,0 +1,336 @@ +# Copyright 2022 VyOS maintainers and contributors +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see . + +from pathlib import Path +from re import MULTILINE, compile as re_compile +from typing import Union +from uuid import uuid5, NAMESPACE_URL, UUID + +from vyos.template import render +from vyos.util import run, cmd +from vyos.system import disk + +# Define variables +GRUB_DIR_MAIN: str = '/boot/grub' +GRUB_DIR_VYOS: str = f'{GRUB_DIR_MAIN}/grub.cfg.d' +CFG_VYOS_HEADER: str = f'{GRUB_DIR_VYOS}/00-vyos-header.cfg' +CFG_VYOS_MODULES: str = f'{GRUB_DIR_VYOS}/10-vyos-modules-autoload.cfg' +CFG_VYOS_VARS: str = f'{GRUB_DIR_VYOS}/20-vyos-defaults-autoload.cfg' +CFG_VYOS_COMMON: str = f'{GRUB_DIR_VYOS}/25-vyos-common-autoload.cfg' +CFG_VYOS_PLATFORM: str = f'{GRUB_DIR_VYOS}/30-vyos-platform-autoload.cfg' +CFG_VYOS_MENU: str = f'{GRUB_DIR_VYOS}/40-vyos-menu-autoload.cfg' +CFG_VYOS_OPTIONS: str = f'{GRUB_DIR_VYOS}/50-vyos-options.cfg' +GRUB_DIR_VYOS_VERS: str = f'{GRUB_DIR_VYOS}/vyos-versions' + +TMPL_VYOS_VERSION: str = 'grub/grub_vyos_version.j2' +TMPL_GRUB_VARS: str = 'grub/grub_vars.j2' +TMPL_GRUB_MAIN: str = 'grub/grub_main.j2' +TMPL_GRUB_MENU: str = 'grub/grub_menu.j2' +TMPL_GRUB_MODULES: str = 'grub/grub_modules.j2' +TMPL_GRUB_OPTS: str = 'grub/grub_options.j2' +TMPL_GRUB_COMMON: str = 'grub/grub_common.j2' + +# prepare regexes +REGEX_GRUB_VARS: str = r'^set (?P.+)=[\'"]?(?P.*)(?.+)$' +REGEX_KERNEL_CMDLINE: str = r'^BOOT_IMAGE=/(?Pboot|live)/((?P.+)/)?vmlinuz.*$' + + +def install(drive_path: str, boot_dir: str, efi_dir: str) -> None: + """Install GRUB for both BIOS and EFI modes (hybrid boot) + + Args: + drive_path (str): path to a drive where GRUB must be installed + boot_dir (str): a path to '/boot' directory + efi_dir (str): a path to '/boot/efi' directory + """ + commands: list[str] = [ + f'grub-install --no-floppy --target=i386-pc --boot-directory={boot_dir} \ + {drive_path} --force', + f'grub-install --no-floppy --recheck --target=x86_64-efi \ + --force-extra-removable --boot-directory={boot_dir} \ + --efi-directory={efi_dir} --bootloader-id="VyOS" \ + --no-uefi-secure-boot' + ] + for command in commands: + run(command) + + +def gen_version_uuid(version_name: str) -> str: + """Generate unique ID from version name + + Use UUID5 / NAMESPACE_URL with prefix `uuid5-` + + Args: + version_name (str): version name + + Returns: + str: generated unique ID + """ + ver_uuid: UUID = uuid5(NAMESPACE_URL, version_name) + ver_id: str = f'uuid5-{ver_uuid}' + return ver_id + + +def version_add(version_name: str, + root_dir: str = '', + boot_opts: str = '') -> None: + """Add a new VyOS version to GRUB loader configuration + + Args: + vyos_version (str): VyOS version name + root_dir (str): an optional path to the root directory. + Defaults to empty. + boot_opts (str): an optional boot options for Linux kernel. + Defaults to empty. + """ + if not root_dir: + root_dir = disk.find_persistence() + version_config: str = f'{root_dir}/{GRUB_DIR_VYOS_VERS}/{version_name}.cfg' + render( + version_config, TMPL_VYOS_VERSION, { + 'version_name': version_name, + 'version_uuid': gen_version_uuid(version_name), + 'boot_opts': boot_opts + }) + + +def version_del(vyos_version: str, root_dir: str = '') -> None: + """Delete a VyOS version from GRUB loader configuration + + Args: + vyos_version (str): VyOS version name + root_dir (str): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = disk.find_persistence() + version_config: str = f'{root_dir}/{GRUB_DIR_VYOS_VERS}/{vyos_version}.cfg' + Path(version_config).unlink(missing_ok=True) + + +def version_list(root_dir: str = '') -> list[str]: + """Generate a list with installed VyOS versions + + Args: + root_dir (str): an optional path to the root directory. + Defaults to empty. + + Returns: + list: A list with versions names + """ + if not root_dir: + root_dir = disk.find_persistence() + versions_files = Path(f'{root_dir}/{GRUB_DIR_VYOS_VERS}').glob('*.cfg') + versions_list: list[str] = [] + for file in versions_files: + versions_list.append(file.stem) + return versions_list + + +def read_env(env_file: str = '') -> dict[str, str]: + """Read GRUB environment + + Args: + env_file (str, optional): a path to grub environment file. + Defaults to empty. + + Returns: + dict: dictionary with GRUB environment + """ + if not env_file: + root_dir: str = disk.find_persistence() + env_file = f'{root_dir}/{GRUB_DIR_MAIN}/grubenv' + + env_content: str = cmd(f'grub-editenv {env_file} list').splitlines() + regex_filter = re_compile(r'^(?P.*)=(?P.*)$') + env_dict: dict[str, str] = {} + for env_item in env_content: + search_result = regex_filter.fullmatch(env_item) + if search_result: + search_result_dict: dict[str, str] = search_result.groupdict() + variable_name: str = search_result_dict.get('variable_name', '') + variable_value: str = search_result_dict.get('variable_value', '') + if variable_name and variable_value: + env_dict.update({variable_name: variable_value}) + return env_dict + + +def get_cfg_ver(root_dir: str = '') -> int: + """Get current version of GRUB configuration + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + + Returns: + int: a configuration version + """ + if not root_dir: + root_dir = disk.find_persistence() + + cfg_ver: Union[str, None] = vars_read(f'{root_dir}/{CFG_VYOS_HEADER}').get( + 'VYOS_CFG_VER') + if cfg_ver: + cfg_ver_int: int = int(cfg_ver) + else: + cfg_ver_int: int = 0 + return cfg_ver_int + + +def write_cfg_ver(cfg_ver: int, root_dir: str = '') -> None: + """Write version number of GRUB configuration + + Args: + cfg_ver (int): a version number to write + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + + Returns: + int: a configuration version + """ + if not root_dir: + root_dir = disk.find_persistence() + + vars_file: str = f'{root_dir}/{CFG_VYOS_HEADER}' + vars_current: dict[str, str] = vars_read(vars_file) + vars_current['VYOS_CFG_VER'] = str(cfg_ver) + vars_write(vars_file, vars_current) + + +def vars_read(grub_cfg: str) -> dict[str, str]: + """Read variables from a GRUB configuration file + + Args: + grub_cfg (str): a path to the GRUB config file + + Returns: + dict: a dictionary with variables and values + """ + vars_dict: dict[str, str] = {} + regex_filter = re_compile(REGEX_GRUB_VARS) + try: + config_text: list[str] = Path(grub_cfg).read_text().splitlines() + except FileNotFoundError: + return vars_dict + for line in config_text: + search_result = regex_filter.fullmatch(line) + if search_result: + search_dict = search_result.groupdict() + variable_name: str = search_dict.get('variable_name', '') + variable_value: str = search_dict.get('variable_value', '') + if variable_name and variable_value: + vars_dict.update({variable_name: variable_value}) + return vars_dict + + +def modules_read(grub_cfg: str) -> list[str]: + """Read modules list from a GRUB configuration file + + Args: + grub_cfg (str): a path to the GRUB config file + + Returns: + list: a list with modules to load + """ + mods_list: list[str] = [] + regex_filter = re_compile(REGEX_GRUB_MODULES, MULTILINE) + try: + config_text = Path(grub_cfg).read_text() + except FileNotFoundError: + return mods_list + mods_list = regex_filter.findall(config_text) + + return mods_list + + +def modules_write(grub_cfg: str, mods_list: list[str]) -> None: + """Write modules list to a GRUB configuration file (overwrite everything) + + Args: + grub_cfg (str): a path to GRUB configuration file + mods_list (list): a list with modules to load + """ + render(grub_cfg, TMPL_GRUB_MODULES, {'mods_list': mods_list}) + + +def vars_write(grub_cfg: str, grub_vars: dict[str, str]) -> None: + """Write variables to a GRUB configuration file (overwrite everything) + + Args: + grub_cfg (str): a path to GRUB configuration file + grub_vars (dict): a dictionary with new variables + """ + render(grub_cfg, TMPL_GRUB_VARS, {'vars': grub_vars}) + + +def set_default(version_name: str, root_dir: str = '') -> None: + """Set version as default boot entry + + Args: + version_name (str): versio name + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = disk.find_persistence() + + vars_file = f'{root_dir}/{CFG_VYOS_VARS}' + vars_current = vars_read(vars_file) + vars_current['default'] = gen_version_uuid(version_name) + vars_write(vars_file, vars_current) + + +def common_write(root_dir: str = '') -> None: + """Write common GRUB configuration file (overwrite everything) + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = disk.find_persistence() + common_config = f'{root_dir}/{CFG_VYOS_COMMON}' + render(common_config, TMPL_GRUB_COMMON, {}) + + +def create_structure(root_dir: str = '') -> None: + """Create GRUB directories structure + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to ''. + """ + if not root_dir: + root_dir = disk.find_persistence() + + Path(f'{root_dir}/GRUB_DIR_VYOS_VERS').mkdir(parents=True, exist_ok=True) + + +def set_console_type(console_type: str, root_dir: str = '') -> None: + """Write default console type to GRUB configuration + + Args: + console_type (str): a default console type + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + """ + if not root_dir: + root_dir = disk.find_persistence() + + vars_file: str = f'{root_dir}/{CFG_VYOS_VARS}' + vars_current: dict[str, str] = vars_read(vars_file) + vars_current['console_type'] = str(console_type) + vars_write(vars_file, vars_current) diff --git a/python/vyos/system/image.py b/python/vyos/system/image.py new file mode 100644 index 000000000..b77c3563f --- /dev/null +++ b/python/vyos/system/image.py @@ -0,0 +1,197 @@ +# Copyright 2022 VyOS maintainers and contributors +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library 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 +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see . + +from pathlib import Path +from re import compile as re_compile +from tempfile import TemporaryDirectory +from typing import TypedDict + +from vyos import version +from vyos.system import disk, grub + +# Define variables +GRUB_DIR_MAIN: str = '/boot/grub' +GRUB_DIR_VYOS: str = f'{GRUB_DIR_MAIN}/grub.cfg.d' +CFG_VYOS_VARS: str = f'{GRUB_DIR_VYOS}/20-vyos-defaults-autoload.cfg' +GRUB_DIR_VYOS_VERS: str = f'{GRUB_DIR_VYOS}/vyos-versions' +# prepare regexes +REGEX_KERNEL_CMDLINE: str = r'^BOOT_IMAGE=/(?Pboot|live)/((?P.+)/)?vmlinuz.*$' + + +# structures definitions +class ImageDetails(TypedDict): + name: str + version: str + disk_ro: int + disk_rw: int + disk_total: int + + +class BootDetails(TypedDict): + image_default: str + image_running: str + images_available: list[str] + console_type: str + console_num: int + + +def bootmode_detect() -> str: + """Detect system boot mode + + Returns: + str: 'bios' or 'efi' + """ + if Path('/sys/firmware/efi/').exists(): + return 'efi' + else: + return 'bios' + + +def get_version(image_name: str, root_dir: str) -> str: + """Extract version name from rootfs based on image name + + Args: + image_name (str): a name of image (from boot menu) + root_dir (str): a root directory of persistence storage + + Returns: + str: version name + """ + squashfs_file: str = next( + Path(f'{root_dir}/boot/{image_name}').glob('*.squashfs')).as_posix() + with TemporaryDirectory() as squashfs_mounted: + disk.partition_mount(squashfs_file, squashfs_mounted, 'squashfs') + version_file: str = Path( + f'{squashfs_mounted}/opt/vyatta/etc/version').read_text() + disk.partition_umount(squashfs_file) + version_name: str = version_file.lstrip('Version: ').strip() + + return version_name + + +def get_details(image_name: str, root_dir: str = '') -> ImageDetails: + """Return information about image + + Args: + image_name (str): a name of an image + root_dir (str, optional): an optional path to the root directory. + Defaults to ''. + + Returns: + ImageDetails: a dictionary with details about an image (name, size) + """ + if not root_dir: + root_dir = disk.find_persistence() + + image_version: str = get_version(image_name, root_dir) + + image_path: Path = Path(f'{root_dir}/boot/{image_name}') + image_path_rw: Path = Path(f'{root_dir}/boot/{image_name}/rw') + + image_disk_ro: int = int() + for item in image_path.iterdir(): + if not item.is_symlink(): + image_disk_ro += item.stat().st_size + + image_disk_rw: int = int() + for item in image_path_rw.rglob('*'): + if not item.is_symlink(): + image_disk_rw += item.stat().st_size + + image_details: ImageDetails = { + 'name': image_name, + 'version': image_version, + 'disk_ro': image_disk_ro, + 'disk_rw': image_disk_rw, + 'disk_total': image_disk_ro + image_disk_rw + } + + return image_details + + +def get_running_image() -> str: + """Find currently running image name + + Returns: + str: image name + """ + running_image: str = '' + regex_filter = re_compile(REGEX_KERNEL_CMDLINE) + cmdline: str = Path('/proc/cmdline').read_text() + running_image_result = regex_filter.match(cmdline) + if running_image_result: + running_image: str = running_image_result.groupdict().get( + 'image_version', '') + # we need to have a fallbak for live systems + if not running_image: + running_image: str = version.get_version() + + return running_image + + +def get_default_image(root_dir: str = '') -> str: + """Get default boot entry + + Args: + root_dir (str, optional): an optional path to the root directory. + Defaults to empty. + Returns: + str: a version name + """ + if not root_dir: + root_dir = disk.find_persistence() + + vars_file: str = f'{root_dir}/{CFG_VYOS_VARS}' + vars_current: dict[str, str] = grub.vars_read(vars_file) + default_uuid: str = vars_current.get('default', '') + if default_uuid: + images_list: list[str] = grub.version_list(root_dir) + for image_name in images_list: + if default_uuid == grub.gen_version_uuid(image_name): + return image_name + return '' + else: + return '' + + +def validate_name(image_name: str) -> bool: + """Validate image name + + Args: + image_name (str): suggested image name + + Returns: + bool: validation result + """ + regex_filter = re_compile(r'^[\w\.+-]{1,32}$') + if regex_filter.match(image_name): + return True + return False + + +def is_live_boot() -> bool: + """Detect live booted system + + Returns: + bool: True if the system currently booted in live mode + """ + regex_filter = re_compile(REGEX_KERNEL_CMDLINE) + cmdline: str = Path('/proc/cmdline').read_text() + running_image_result = regex_filter.match(cmdline) + if running_image_result: + boot_type: str = running_image_result.groupdict().get('boot_type', '') + if boot_type == 'live': + return True + return False diff --git a/src/op_mode/image_info.py b/src/op_mode/image_info.py new file mode 100644 index 000000000..ae0677196 --- /dev/null +++ b/src/op_mode/image_info.py @@ -0,0 +1,108 @@ +#!/usr/bin/env python3 +# +# Copyright 2022 VyOS maintainers and contributors +# +# 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 . + +import sys +from typing import List, Union + +from hurry.filesize import size +from tabulate import tabulate + +from vyos import opmode +from vyos.system import disk, grub, image + + +def _format_show_images_summary(images_summary: image.BootDetails) -> str: + headers: list[str] = ['Name', 'Default boot', 'Running'] + table_data: list[list[str]] = list() + for image_item in images_summary.get('images_available', []): + name: str = image_item + if images_summary.get('image_default') == name: + default: str = 'Yes' + else: + default: str = '' + + if images_summary.get('image_running') == name: + running: str = 'Yes' + else: + running: str = '' + + table_data.append([name, default, running]) + tabulated: str = tabulate(table_data, headers) + + return tabulated + + +def _format_show_images_details( + images_details: list[image.ImageDetails]) -> str: + headers: list[str] = [ + 'Name', 'Version', 'Storage Read-Only', 'Storage Read-Write', + 'Storage Total' + ] + table_data: list[list[Union[str, int]]] = list() + for image_item in images_details: + name: str = image_item.get('name') + version: str = image_item.get('version') + disk_ro: int = size(image_item.get('disk_ro')) + disk_rw: int = size(image_item.get('disk_rw')) + disk_total: int = size(image_item.get('disk_total')) + table_data.append([name, version, disk_ro, disk_rw, disk_total]) + tabulated: str = tabulate(table_data, headers) + + return tabulated + + +def show_images_summary(raw: bool) -> Union[image.BootDetails, str]: + images_available: list[str] = grub.version_list() + root_dir: str = disk.find_persistence() + boot_vars: dict = grub.vars_read(f'{root_dir}/{image.CFG_VYOS_VARS}') + + images_summary: image.BootDetails = dict() + + images_summary['image_default'] = image.get_default_image() + images_summary['image_running'] = image.get_running_image() + images_summary['images_available'] = images_available + images_summary['console_type'] = boot_vars.get('console_type') + images_summary['console_num'] = boot_vars.get('console_num') + + if raw: + return images_summary + else: + return _format_show_images_summary(images_summary) + + +def show_images_details(raw: bool) -> Union[list[image.ImageDetails], str]: + images: list[str] = grub.version_list() + images_details: list[image.ImageDetails] = list() + for image_name in images: + images_details.append(image.get_details(image_name)) + + if raw: + return images_details + else: + return _format_show_images_details(images_details) + + +if __name__ == '__main__': + try: + res = opmode.run(sys.modules[__name__]) + if res: + print(res) + except (ValueError, opmode.Error) as e: + print(e) + sys.exit(1) diff --git a/src/op_mode/image_installer.py b/src/op_mode/image_installer.py new file mode 100644 index 000000000..6ebb38e46 --- /dev/null +++ b/src/op_mode/image_installer.py @@ -0,0 +1,557 @@ +#!/usr/bin/env python3 +# +# Copyright 2022 VyOS maintainers and contributors +# +# 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 . + +from argparse import ArgumentParser, Namespace +from pathlib import Path +from shutil import copy, rmtree, copytree +from sys import exit +from urllib.parse import urlparse + +from psutil import disk_partitions + +from vyos.configtree import ConfigTree +from vyos.remote import download +from vyos.system import disk, grub, image +from vyos.template import render +from vyos.util import ask_input, ask_yes_no, 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_INFO_INSTALL_WELCOME: str = 'Welcome to VyOS installation!\nThis command will install the VyOS to your permanent storage.' +MSG_INFO_INSTALL_EXIT: str = 'Exitting from VyOS installation' +MSG_INFO_INSTALL_SUCCESS: str = 'The image installed successfully' +MSG_INFO_INSTALL_DISKS_LIST: str = 'Were found the next disks:' +MSG_INFO_INSTALL_DISK_SELECT: str = 'Which one should be used for installation?' +MSG_INFO_INSTALL_DISK_CONFIRM: str = 'Installation will delete all data on the drive. 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 a new image as 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 free space on the drive?' +MSG_INPUT_ROOT_SIZE_SET: str = 'What should be a 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_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' + +# 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_disk() -> tuple[str, int]: + """Find a target disk for installation + + Returns: + tuple[str, int]: disk name and size in bytes + """ + # check for available 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) + + # select one as a target + 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)) + + return disk_selected, disks_available[disk_selected] + + +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 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: + config = ConfigTree(config_file) + config.set([ + 'system', 'login', 'user', 'vyos', 'authentication', + 'plaintext-password' + ], + value=password, + replace=True) + config.set_tag(['system', 'login', 'user']) + + +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 image_fetch(image_path: str) -> 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(ISO_DOWNLOAD_PATH, image_path, True, True) + # download a signature + sign_file = (False, '') + for sign_type in ['minisig', 'asc']: + try: + download(f'{ISO_DOWNLOAD_PATH}.{sign_type}', + f'{image_path}.{sign_type}') + 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 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 + except Exception: + print(f'The image cannot be fetched from: {image_path}') + 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 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 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() + + try: + # 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) + + # define target drive + install_target, target_size = find_disk() + + # define target rootfs size in KB (smallest unit acceptable by sgdisk) + availabe_size: int = (target_size - CONST_RESERVED_SPACE) // 1024 + rootfs_size: int = ask_root_size(availabe_size) + + # ask for password + user_password: str = ask_input(MSG_INPUT_PASSWORD, default='vyos') + + # 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'} + + # create partitions + if not ask_yes_no(MSG_INFO_INSTALL_DISK_CONFIRM): + print(MSG_INFO_INSTALL_EXIT) + exit() + print(MSG_INFO_INSTALL_PARTITONING) + disk.disk_cleanup(install_target) + disk.parttable_create(install_target, rootfs_size) + disk.filesystem_create(f'{install_target}2', 'efi') + disk.filesystem_create(f'{install_target}3', 'ext4') + + # create directiroes for installation media + prepare_tmp_disr() + + # mount target filesystem and create required dirs inside + print('Mounting new partitions') + disk.partition_mount(f'{install_target}3', DIR_DST_ROOT) + Path(f'{DIR_DST_ROOT}/boot/efi').mkdir(parents=True) + disk.partition_mount(f'{install_target}2', 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) + # copy config + if migrate_config(): + copy('/opt/vyatta/etc/config/config.boot', target_config_dir) + else: + copy('/opt/vyatta/etc/config.boot.default', + f'{target_config_dir}/config.boot') + 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') + + # install GRUB + print('Installing GRUB to the drive') + grub.install(install_target, f'{DIR_DST_ROOT}/boot/', + f'{DIR_DST_ROOT}/boot/efi') + 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) + + # umount filesystems and remove temporary files + cleanup([f'{install_target}2', f'{install_target}3'], + ['/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: + cleanup([f'{install_target}2', f'{install_target}3'], + ['/mnt/installation']) + except Exception as err: + print(f'Cleanup failed: {err}') + + exit(1) + + +def add_image(image_path: str) -> 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) + 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 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') + version_file: str = Path( + f'{DIR_ROOTFS_SRC}/opt/vyatta/etc/version').read_text() + disk.partition_umount(f'{DIR_ISO_MOUNT}/live/filesystem.squashfs') + version_name: str = version_file.lstrip('Version: ').strip() + image_name: str = ask_input(MSG_INPUT_IMAGE_NAME, version_name) + set_as_default: bool = ask_yes_no(MSG_INPUT_IMAGE_DEFAULT, default=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 migrate_config(): + print('Copying configuration directory') + copytree('/opt/vyatta/etc/config/', target_config_dir) + else: + Path(target_config_dir).mkdir(parents=True) + Path(f'{target_config_dir}/.vyatta_config').touch() + + # 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( + '--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) + + exit() + + except KeyboardInterrupt: + print('Stopped by Ctrl+C') + cleanup() + exit() + + except Exception as err: + exit(f'{err}') diff --git a/src/op_mode/image_manager.py b/src/op_mode/image_manager.py new file mode 100644 index 000000000..ac889da38 --- /dev/null +++ b/src/op_mode/image_manager.py @@ -0,0 +1,190 @@ +#!/usr/bin/env python3 +# +# Copyright 2022 VyOS maintainers and contributors +# +# 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 . + +from argparse import ArgumentParser, Namespace +from pathlib import Path +from shutil import rmtree +from sys import exit + +from vyos.system import disk, grub, image +from vyos.util import ask_yes_no + + +def delete_image(image_name: str) -> None: + """Remove installed image files and boot entry + + Args: + image_name (str): a name of image to delete + """ + if image_name == image.get_running_image(): + exit('Currently running image cannot be deleted') + if image_name == image.get_default_image(): + exit('Default image cannot be deleted') + available_images: list[str] = grub.version_list() + if image_name not in available_images: + exit(f'The image "{image_name}" cannot be found') + presistence_storage: str = disk.find_persistence() + if not presistence_storage: + exit('Persistence storage cannot be found') + + if not ask_yes_no(f'Do you really want to delete the image {image_name}?', + default=False): + exit() + + # remove files and menu entry + version_path: Path = Path(f'{presistence_storage}/boot/{image_name}') + try: + rmtree(version_path) + grub.version_del(image_name, presistence_storage) + print(f'The image "{image_name}" was successfully deleted') + except Exception as err: + exit(f'Unable to remove the image "{image_name}": {err}') + + +def set_image(image_name: str) -> None: + """Set default boot image + + Args: + image_name (str): an image name + """ + if image_name == image.get_default_image(): + exit(f'The image "{image_name}" already configured as default') + available_images: list[str] = grub.version_list() + if image_name not in available_images: + exit(f'The image "{image_name}" cannot be found') + presistence_storage: str = disk.find_persistence() + if not presistence_storage: + exit('Persistence storage cannot be found') + + if not ask_yes_no( + f'Do you really want to set the image {image_name} ' + 'as default boot image?', + default=False): + exit() + + # set default boot image + try: + grub.set_default(image_name, presistence_storage) + print(f'The image "{image_name}" is now default boot image') + except Exception as err: + exit(f'Unable to set default image "{image_name}": {err}') + + +def rename_image(name_old: str, name_new: str) -> None: + """Rename installed image + + Args: + name_old (str): old name + name_new (str): new name + """ + if name_old == image.get_running_image(): + exit('Currently running image cannot be renamed') + available_images: list[str] = grub.version_list() + if name_old not in available_images: + exit(f'The image "{name_old}" cannot be found') + if name_new in available_images: + exit(f'The image "{name_new}" already exists') + if not image.validate_name(name_new): + exit(f'The image name "{name_new}" is not allowed') + + presistence_storage: str = disk.find_persistence() + if not presistence_storage: + exit('Persistence storage cannot be found') + + if not ask_yes_no( + f'Do you really want to rename the image {name_old} ' + f'to the {name_new}?', + default=False): + exit() + + try: + # replace default boot item + if name_old == image.get_default_image(): + grub.set_default(name_new, presistence_storage) + + # rename files and dirs + old_path: Path = Path(f'{presistence_storage}/boot/{name_old}') + new_path: Path = Path(f'{presistence_storage}/boot/{name_new}') + old_path.rename(new_path) + + # replace boot item + grub.version_del(name_old, presistence_storage) + grub.version_add(name_new, presistence_storage) + + print(f'The image "{name_old}" was renamed to "{name_new}"') + except Exception as err: + exit(f'Unable to rename image "{name_old}" to "{name_new}": {err}') + + +def list_images() -> None: + """Print list of available images for CLI hints""" + images_list: list[str] = grub.version_list() + for image_name in images_list: + print(image_name) + + +def parse_arguments() -> Namespace: + """Parse arguments + + Returns: + Namespace: a namespace with parsed arguments + """ + parser: ArgumentParser = ArgumentParser(description='Manage system images') + parser.add_argument('--action', + choices=['delete', 'set', 'rename', 'list'], + required=True, + help='action to perform with an image') + parser.add_argument( + '--image_name', + help= + 'a name of an image to add, delete, install, rename, or set as default') + parser.add_argument('--image_new_name', help='a new name for image') + args: Namespace = parser.parse_args() + # Validate arguments + if args.action == 'delete' and not args.image_name: + exit('An image name is required for delete action') + if args.action == 'set' and not args.image_name: + exit('An image name is required for set action') + if args.action == 'rename' and (not args.image_name or + not args.image_new_name): + exit('Both old and new image names are required for rename action') + + return args + + +if __name__ == '__main__': + try: + args: Namespace = parse_arguments() + if args.action == 'delete': + delete_image(args.image_name) + if args.action == 'set': + set_image(args.image_name) + if args.action == 'rename': + rename_image(args.image_name, args.image_new_name) + if args.action == 'list': + list_images() + + exit() + + except KeyboardInterrupt: + print('Stopped by Ctrl+C') + exit() + + except Exception as err: + exit(f'{err}') diff --git a/src/system/grub_update.py b/src/system/grub_update.py new file mode 100644 index 000000000..ebdc73af0 --- /dev/null +++ b/src/system/grub_update.py @@ -0,0 +1,211 @@ +#!/usr/bin/env python3 +# +# Copyright 2022 VyOS maintainers and contributors +# +# 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 . + +from pathlib import Path +from re import compile, MULTILINE, DOTALL +from sys import exit + +from vyos.system import disk, grub, image +from vyos.template import render + +# define configuration version +CFG_VER = 1 + +# define regexes and variables +REGEX_VERSION = r'^menuentry "[^\n]*{\n[^}]*\s+linux /boot/(?P\S+)/[^}]*}' +REGEX_MENUENTRY = r'^menuentry "[^\n]*{\n[^}]*\s+linux /boot/(?P\S+)/vmlinuz (?P[^\n]+)\n[^}]*}' +REGEX_CONSOLE = r'^.*console=(?P[^\s\d]+)(?P[\d]+).*$' +REGEX_SANIT_CONSOLE = r'\ ?console=[^\s\d]+[\d]+(,\d+)?\ ?' +REGEX_SANIT_INIT = r'\ ?init=\S*\ ?' +PW_RESET_OPTION = 'init=/opt/vyatta/sbin/standalone_root_pw_reset' + + +def cfg_check_update() -> bool: + """Check if GRUB structure update is required + + Returns: + bool: False if not required, True if required + """ + current_ver = grub.get_cfg_ver() + if current_ver and current_ver >= CFG_VER: + return False + else: + return True + + +def find_versions(menu_entries: list) -> list: + """Find unique VyOS versions from menu entries + + Args: + menu_entries (list): a list with menu entries + + Returns: + list: List of installed versions + """ + versions = [] + for vyos_ver in menu_entries: + versions.append(vyos_ver.get('version')) + # remove duplicates + versions = list(set(versions)) + return versions + + +def filter_unparsed(grub_path: str) -> str: + """Find currently installed VyOS version + + Args: + grub_path (str): a path to the grub.cfg file + + Returns: + str: unparsed grub.cfg items + """ + config_text = Path(grub_path).read_text() + regex_filter = compile(REGEX_VERSION, MULTILINE | DOTALL) + filtered = regex_filter.sub('', config_text) + regex_filter = compile(grub.REGEX_GRUB_VARS, MULTILINE) + filtered = regex_filter.sub('', filtered) + regex_filter = compile(grub.REGEX_GRUB_MODULES, MULTILINE) + filtered = regex_filter.sub('', filtered) + # strip extra new lines + filtered = filtered.strip() + return filtered + + +def sanitize_boot_opts(boot_opts: str) -> str: + """Sanitize boot options from console and init + + Args: + boot_opts (str): boot options + + Returns: + str: sanitized boot options + """ + regex_filter = compile(REGEX_SANIT_CONSOLE) + boot_opts = regex_filter.sub('', boot_opts) + regex_filter = compile(REGEX_SANIT_INIT) + boot_opts = regex_filter.sub('', boot_opts) + + return boot_opts + + +def parse_entry(entry: tuple) -> dict: + """Parse GRUB menuentry + + Args: + entry (tuple): tuple of (version, options) + + Returns: + dict: dictionary with parsed options + """ + # save version to dict + entry_dict = {'version': entry[0]} + # detect boot mode type + if PW_RESET_OPTION in entry[1]: + entry_dict['bootmode'] = 'pw_reset' + else: + entry_dict['bootmode'] = 'normal' + # find console type and number + regex_filter = compile(REGEX_CONSOLE) + entry_dict.update(regex_filter.match(entry[1]).groupdict()) + entry_dict['boot_opts'] = sanitize_boot_opts(entry[1]) + + return entry_dict + + +def parse_menuntries(grub_path: str) -> list: + """Parse all GRUB menuentries + + Args: + grub_path (str): a path to GRUB config file + + Returns: + list: list with menu items (each item is a dict) + """ + menuentries = [] + # read configuration file + config_text = Path(grub_path).read_text() + # parse menuentries to tuples (version, options) + regex_filter = compile(REGEX_MENUENTRY, MULTILINE) + filter_results = regex_filter.findall(config_text) + # parse each entry + for entry in filter_results: + menuentries.append(parse_entry(entry)) + + return menuentries + + +if __name__ == '__main__': + # Skip everything if update is not required + if not cfg_check_update(): + exit(0) + + # find root directory of persistent storage + root_dir = disk.find_persistence() + + # read current GRUB config + grub_cfg_main = f'{root_dir}/{image.GRUB_DIR_MAIN}/grub.cfg' + vars = grub.vars_read(grub_cfg_main) + modules = grub.modules_read(grub_cfg_main) + vyos_menuentries = parse_menuntries(grub_cfg_main) + vyos_versions = find_versions(vyos_menuentries) + unparsed_items = filter_unparsed(grub_cfg_main) + + # find default values + default_entry = vyos_menuentries[int(vars['default'])] + default_settings = { + 'default': grub.gen_version_uuid(default_entry['version']), + 'bootmode': default_entry['bootmode'], + 'console_type': default_entry['console_type'], + 'console_num': default_entry['console_num'] + } + vars.update(default_settings) + + # print(f'vars: {vars}') + # print(f'modules: {modules}') + # print(f'vyos_menuentries: {vyos_menuentries}') + # print(f'unparsed_items: {unparsed_items}') + + # create new files + grub_cfg_vars = f'{root_dir}/{image.CFG_VYOS_VARS}' + grub_cfg_modules = f'{root_dir}/{grub.CFG_VYOS_MODULES}' + grub_cfg_platform = f'{root_dir}/{grub.CFG_VYOS_PLATFORM}' + grub_cfg_menu = f'{root_dir}/{grub.CFG_VYOS_MENU}' + grub_cfg_options = f'{root_dir}/{grub.CFG_VYOS_OPTIONS}' + + render(grub_cfg_main, grub.TMPL_GRUB_MAIN, {}) + Path(image.GRUB_DIR_VYOS).mkdir(exist_ok=True) + grub.vars_write(grub_cfg_vars, vars) + grub.modules_write(grub_cfg_modules, modules) + # Path(grub_cfg_platform).write_text(unparsed_items) + grub.common_write() + render(grub_cfg_menu, grub.TMPL_GRUB_MENU, {}) + render(grub_cfg_options, grub.TMPL_GRUB_OPTS, {}) + + # create menu entries + for vyos_ver in vyos_versions: + boot_opts = None + for entry in vyos_menuentries: + if entry.get('version') == vyos_ver and entry.get( + 'bootmode') == 'normal': + boot_opts = entry.get('boot_opts') + grub.version_add(vyos_ver, root_dir, boot_opts) + + # update structure version + grub.write_cfg_ver(CFG_VER, root_dir) + exit(0) diff --git a/src/systemd/vyos-grub-update.service b/src/systemd/vyos-grub-update.service new file mode 100644 index 000000000..522b13a33 --- /dev/null +++ b/src/systemd/vyos-grub-update.service @@ -0,0 +1,14 @@ +[Unit] +Description=Update GRUB loader configuration structure +After=local-fs.target +Before=vyos-router.service + +[Service] +Type=oneshot +ExecStart=/usr/libexec/vyos/system/grub_update.py +TimeoutSec=5 +KillMode=process +StandardOutput=journal+console + +[Install] +WantedBy=vyos-router.service \ No newline at end of file -- cgit v1.2.3