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clwizard
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modules
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# coding=utf-8 # # Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2021 All Rights Reserved # # Licensed under CLOUD LINUX LICENSE AGREEMENT # http://cloudlinux.com/docs/LICENCE.TXT # import os from abc import abstractmethod from typing import Dict, List, Optional # NOQA from clcommon import cpapi from clcommon.group_info_reader import GroupInfoReader from clcommon.utils import ( ExternalProgramFailed, get_cl_version, get_package_db_errors, get_passenger_package_name, is_ea4, is_package_installed, is_ubuntu, run_command, ) from clwizard.exceptions import InstallationFailedException from clwizard.utils import convert_package_version, setup_logger class WizardInstaller: """ General interface for modules installers """ LOG_FILE = "" _REQUIRED_CL_COMPONENT_SUPPORT = None def __init__(self): self.app_logger = setup_logger("wizard." + self.__class__.__name__, self.LOG_FILE) def _run_command(self, cmd, cmd_env=None): # type: (List[str], Dict[str, str]) -> str """Run external tool and log results""" self.app_logger.info("~" * 60) self.app_logger.info("Executing command %s...", " ".join(cmd)) try: output = run_command(cmd, env_data=cmd_env) except ExternalProgramFailed as err: self.app_logger.info("...external command failed, see the following lines for tracebacks, errors, etc.") self.app_logger.error(str(err)) raise self.app_logger.info("...external command successfully ended with output:") self.app_logger.info(output) self.app_logger.info("-" * 60) return output def _is_package_installed(self, package_name): # type: (str) -> bool """Check if package exists on server""" error_message = get_package_db_errors() if error_message: # DB corrupted log_message = f"Can't check package {package_name} presence. Errors:\n{error_message}" self.app_logger.error(log_message) raise InstallationFailedException() return is_package_installed(package_name) def _install_package(self, *packages): # type: (str) -> Optional[str] """Install a package and log results""" if is_ubuntu(): return self._install_apt_package(*packages) return self._install_yum_package(*packages) def _install_apt_package(self, *packages): # type: (str) -> Optional[str] """Install an apt package and log results""" apt_env = {} # For debconf to avoid making any interactive queries. apt_env["DEBIAN_FRONTEND"] = "noninteractive" apt_env["DEBCONF_NONINTERACTIVE_SEEN"] = "true" if packages: return self._run_command(["apt-get", "install", "-y"] + list(packages), cmd_env=apt_env) return None def _install_yum_package(self, *packages): # type: (str) -> Optional[str] """Install a yum package and log results""" if packages: return self._run_command(["yum", "install", "-y"] + list(packages)) return None def _install_groups(self, *groups): # type: (str) -> Optional[str] """ Install a package group. At the moment, DEB metapackages are not supported, and provided names are simply installed as normal packages. This will change in the future. """ if is_ubuntu(): return self._install_apt_package(*groups) return self._install_yum_groups(*groups) def _install_yum_groups(self, *groups): # type: (str) -> Optional[str] """Install package group with yum and log results""" if groups: return self._run_command(["yum", "groupinstall", "-y"] + list(groups)) return None def _ensure_cl_ea4_repo_exists(self): """ Check whether cloudlinux-ea4.repo is present and install it if not. It's required only on EA4 to install proper Passenger package """ # LU-3364: should also be made compatible with Ubuntu, once Python/Node/Ruby selector # support comes into play. cl_ea4_repofile = "/etc/yum.repos.d/cloudlinux-ea4.repo" if os.path.exists(cl_ea4_repofile): return dist = get_cl_version() or "Unknown" if "7" in dist: dist_maj_ver = "7" elif "6" in dist: dist_maj_ver = "6" else: raise InstallationFailedException("Failed to get the distribution's major version") package_url = ( "https://repo.cloudlinux.com/cloudlinux/EA4/" f"cloudlinux-ea4-release-latest-{dist_maj_ver}.noarch.rpm" ) self.app_logger.info("Unable to find cloudlinux-ea4 repo. Trying to install it using url: %s", package_url) self._install_yum_package(package_url) def _install_passenger(self): """ Install proper passenger package for Selectors if it's not yet installed """ # LU-3364: should also be made compatible with Ubuntu, once Python/Node/Ruby selector # support comes into play. if is_ea4(): self._ensure_cl_ea4_repo_exists() passenger = get_passenger_package_name() self.app_logger.info("Trying to install Passenger package: %s", passenger) try: self._install_yum_package(passenger) except ExternalProgramFailed as extern_failed: raise InstallationFailedException() from extern_failed @staticmethod def _get_available_versions(group): # type: (str) -> List """ Get a list of available Python, NodeJS, PHP or Ruby module versions. :param group: - group name, e.g: python :return: list of available versions """ available_groups_info = GroupInfoReader.get_group_info(group) versions = [] # we need to format version: # python: 2.3.3 -> 2.3 # ruby: 2.1.1 -> 2.1 # php: 7.2.0 -> 7.2 # nodejs: 8.1.0 -> 8 ver_size = 1 if group == "nodejs" else 2 for group_data in available_groups_info.values(): versions.append(convert_package_version(group_data["version"], version_size=ver_size)) return versions @abstractmethod def run_installation(self, options): # type: (Dict) -> None raise NotImplementedError() @classmethod def supported_options(cls): return set() @abstractmethod def initial_status(self): # type: () -> Dict """ Method that returns dictionary with two required keys: {installed: True|False and options: {...}] This will be used by lvemanager to properly display wizard. """ raise NotImplementedError() @classmethod def is_supported_by_control_panel(cls): """ Checks whether we must :return: """ if cls._REQUIRED_CL_COMPONENT_SUPPORT is None: return True return cpapi.is_panel_feature_supported(cls._REQUIRED_CL_COMPONENT_SUPPORT)
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