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#!/usr/bin/env python3 # vi: ts=4 expandtab # # Copyright (C) 2021 VMware Inc. # # This file is part of cloud-init. See LICENSE file for license information. from cloudinit import distros, helpers from cloudinit import log as logging from cloudinit import net, subp, util from cloudinit.distros import rhel_util as rhutil from cloudinit.settings import PER_INSTANCE LOG = logging.getLogger(__name__) class Distro(distros.Distro): systemd_hostname_conf_fn = "/etc/hostname" network_conf_dir = "/etc/systemd/network/" systemd_locale_conf_fn = "/etc/locale.conf" resolve_conf_fn = "/etc/systemd/resolved.conf" renderer_configs = { "networkd": { "resolv_conf_fn": resolve_conf_fn, "network_conf_dir": network_conf_dir, } } # Should be fqdn if we can use it prefer_fqdn = True def __init__(self, name, cfg, paths): distros.Distro.__init__(self, name, cfg, paths) # This will be used to restrict certain # calls from repeatly happening (when they # should only happen say once per instance...) self._runner = helpers.Runners(paths) self.osfamily = "photon" self.init_cmd = ["systemctl"] def exec_cmd(self, cmd, capture=True): LOG.debug("Attempting to run: %s", cmd) try: (out, err) = subp.subp(cmd, capture=capture) if err: LOG.warning( "Running %s resulted in stderr output: %s", cmd, err ) return True, out, err return False, out, err except subp.ProcessExecutionError: util.logexc(LOG, "Command %s failed", cmd) return True, None, None def generate_fallback_config(self): key = "disable_fallback_netcfg" disable_fallback_netcfg = self._cfg.get(key, True) LOG.debug("%s value is: %s", key, disable_fallback_netcfg) if not disable_fallback_netcfg: return net.generate_fallback_config() LOG.info( "Skipping generate_fallback_config. Rely on PhotonOS default " "network config" ) return None def apply_locale(self, locale, out_fn=None): # This has a dependancy on glibc-i18n, user need to manually install it # and enable the option in cloud.cfg if not out_fn: out_fn = self.systemd_locale_conf_fn locale_cfg = { "LANG": locale, } rhutil.update_sysconfig_file(out_fn, locale_cfg) # rhutil will modify /etc/locale.conf # For locale change to take effect, reboot is needed or we can restart # systemd-localed. This is equivalent of localectl cmd = ["systemctl", "restart", "systemd-localed"] self.exec_cmd(cmd) def install_packages(self, pkglist): # self.update_package_sources() self.package_command("install", pkgs=pkglist) def _write_hostname(self, hostname, filename): if filename and filename.endswith("/previous-hostname"): util.write_file(filename, hostname) else: ret, _out, err = self.exec_cmd( ["hostnamectl", "set-hostname", str(hostname)] ) if ret: LOG.warning( ( "Error while setting hostname: %s\nGiven hostname: %s", err, hostname, ) ) def _read_system_hostname(self): sys_hostname = self._read_hostname(self.systemd_hostname_conf_fn) return (self.systemd_hostname_conf_fn, sys_hostname) def _read_hostname(self, filename, default=None): if filename and filename.endswith("/previous-hostname"): return util.load_file(filename).strip() _ret, out, _err = self.exec_cmd(["hostname", "-f"]) return out.strip() if out else default def _get_localhost_ip(self): return "127.0.1.1" def set_timezone(self, tz): distros.set_etc_timezone(tz=tz, tz_file=self._find_tz_file(tz)) def package_command(self, command, args=None, pkgs=None): if not pkgs: pkgs = [] cmd = ["tdnf", "-y"] if args and isinstance(args, str): cmd.append(args) elif args and isinstance(args, list): cmd.extend(args) cmd.append(command) pkglist = util.expand_package_list("%s-%s", pkgs) cmd.extend(pkglist) ret, _out, err = self.exec_cmd(cmd) if ret: LOG.error("Error while installing packages: %s", err) def update_package_sources(self): self._runner.run( "update-sources", self.package_command, ["makecache"], freq=PER_INSTANCE, )
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