diff options
| -rw-r--r-- | interface-definitions/system_config-management.xml.in | 27 | ||||
| -rw-r--r-- | python/vyos/config_mgmt.py | 351 | ||||
| -rw-r--r-- | python/vyos/configsession.py | 87 | ||||
| -rwxr-xr-x | src/conf_mode/system_config-management.py | 20 | ||||
| -rwxr-xr-x | src/helpers/commit-confirm-notify.py | 48 |
5 files changed, 375 insertions, 158 deletions
diff --git a/interface-definitions/system_config-management.xml.in b/interface-definitions/system_config-management.xml.in index e666633b7..a23d44aea 100644 --- a/interface-definitions/system_config-management.xml.in +++ b/interface-definitions/system_config-management.xml.in @@ -67,6 +67,33 @@ <constraintErrorMessage>Number of revisions must be between 0 and 65535</constraintErrorMessage> </properties> </leafNode> + <node name="commit-confirm"> + <properties> + <help>Commit confirm options</help> + </properties> + <children> + <leafNode name="action"> + <properties> + <help>Commit confirm revert action</help> + <completionHelp> + <list>reload reboot</list> + </completionHelp> + <valueHelp> + <format>reload</format> + <description>Reload previous configuration if not confirmed</description> + </valueHelp> + <valueHelp> + <format>reboot</format> + <description>Reboot to saved configuration if not confirmed</description> + </valueHelp> + <constraint> + <regex>(reload|reboot)</regex> + </constraint> + </properties> + <defaultValue>reboot</defaultValue> + </leafNode> + </children> + </node> </children> </node> </children> diff --git a/python/vyos/config_mgmt.py b/python/vyos/config_mgmt.py index d518737ca..1c2b70fdf 100644 --- a/python/vyos/config_mgmt.py +++ b/python/vyos/config_mgmt.py @@ -33,6 +33,8 @@ from urllib.parse import urlunsplit from vyos.config import Config from vyos.configtree import ConfigTree from vyos.configtree import ConfigTreeError +from vyos.configsession import ConfigSession +from vyos.configsession import ConfigSessionError from vyos.configtree import show_diff from vyos.load_config import load from vyos.load_config import LoadConfigError @@ -49,8 +51,10 @@ config_json = '/run/vyatta/config/config.json' # created by vyatta-cfg-postinst commit_post_hook_dir = '/etc/commit/post-hooks.d' -commit_hooks = {'commit_revision': '01vyos-commit-revision', - 'commit_archive': '02vyos-commit-archive'} +commit_hooks = { + 'commit_revision': '01vyos-commit-revision', + 'commit_archive': '02vyos-commit-archive', +} DEFAULT_TIME_MINUTES = 10 timer_name = 'commit-confirm' @@ -72,6 +76,7 @@ formatter = logging.Formatter('%(funcName)s: %(levelname)s:%(message)s') ch.setFormatter(formatter) logger.addHandler(ch) + def save_config(target, json_out=None): if json_out is None: cmd = f'{SAVE_CONFIG} {target}' @@ -81,6 +86,7 @@ def save_config(target, json_out=None): if rc != 0: logger.critical(f'save config failed: {out}') + def unsaved_commits(allow_missing_config=False) -> bool: if get_full_version_data()['boot_via'] == 'livecd': return False @@ -92,6 +98,7 @@ def unsaved_commits(allow_missing_config=False) -> bool: os.unlink(tmp_save) return ret + def get_file_revision(rev: int): revision = os.path.join(archive_dir, f'config.boot.{rev}.gz') try: @@ -102,12 +109,15 @@ def get_file_revision(rev: int): return '' return r + def get_config_tree_revision(rev: int): c = get_file_revision(rev) return ConfigTree(c) + def is_node_revised(path: list = [], rev1: int = 1, rev2: int = 0) -> bool: from vyos.configtree import DiffTree + left = get_config_tree_revision(rev1) right = get_config_tree_revision(rev2) diff_tree = DiffTree(left, right) @@ -115,9 +125,11 @@ def is_node_revised(path: list = [], rev1: int = 1, rev2: int = 0) -> bool: return True return False + class ConfigMgmtError(Exception): pass + class ConfigMgmt: def __init__(self, session_env=None, config=None): if session_env: @@ -128,15 +140,20 @@ class ConfigMgmt: if config is None: config = Config() - d = config.get_config_dict(['system', 'config-management'], - key_mangling=('-', '_'), - get_first_key=True) + d = config.get_config_dict( + ['system', 'config-management'], + key_mangling=('-', '_'), + get_first_key=True, + with_defaults=True, + ) self.max_revisions = int(d.get('commit_revisions', 0)) self.num_revisions = 0 self.locations = d.get('commit_archive', {}).get('location', []) - self.source_address = d.get('commit_archive', - {}).get('source_address', '') + self.source_address = d.get('commit_archive', {}).get('source_address', '') + self.reboot_unconfirmed = bool(d.get('commit_confirm') == 'reboot') + self.config_dict = d + if config.exists(['system', 'host-name']): self.hostname = config.return_value(['system', 'host-name']) if config.exists(['system', 'domain-name']): @@ -156,51 +173,73 @@ class ConfigMgmt: # a call to compare without args is edit_level aware edit_level = os.getenv('VYATTA_EDIT_LEVEL', '') - self.edit_path = [l for l in edit_level.split('/') if l] + self.edit_path = [l for l in edit_level.split('/') if l] # noqa: E741 self.active_config = config._running_config self.working_config = config._session_config # Console script functions # - def commit_confirm(self, minutes: int=DEFAULT_TIME_MINUTES, - no_prompt: bool=False) -> Tuple[str,int]: - """Commit with reboot to saved config in 'minutes' minutes if + def commit_confirm( + self, minutes: int = DEFAULT_TIME_MINUTES, no_prompt: bool = False + ) -> Tuple[str, int]: + """Commit with reload/reboot to saved config in 'minutes' minutes if 'confirm' call is not issued. """ if is_systemd_service_active(f'{timer_name}.timer'): msg = 'Another confirm is pending' return msg, 1 - if unsaved_commits(): + if self.reboot_unconfirmed and unsaved_commits(): W = '\nYou should save previous commits before commit-confirm !\n' else: W = '' - prompt_str = f''' + if self.reboot_unconfirmed: + prompt_str = f""" commit-confirm will automatically reboot in {minutes} minutes unless changes -are confirmed.\n -Proceed ?''' +are confirmed. +Proceed ?""" + else: + prompt_str = f""" +commit-confirm will automatically reload previous config in {minutes} minutes +unless changes are confirmed. +Proceed ?""" + prompt_str = W + prompt_str if not no_prompt and not ask_yes_no(prompt_str, default=True): msg = 'commit-confirm canceled' return msg, 1 - action = 'sg vyattacfg "/usr/bin/config-mgmt revert"' + if self.reboot_unconfirmed: + action = 'sg vyattacfg "/usr/bin/config-mgmt revert"' + else: + action = 'sg vyattacfg "/usr/bin/config-mgmt revert_soft"' + cmd = f'sudo systemd-run --quiet --on-active={minutes}m --unit={timer_name} {action}' rc, out = rc_cmd(cmd) if rc != 0: raise ConfigMgmtError(out) # start notify - cmd = f'sudo -b /usr/libexec/vyos/commit-confirm-notify.py {minutes}' + if self.reboot_unconfirmed: + cmd = ( + f'sudo -b /usr/libexec/vyos/commit-confirm-notify.py --reboot {minutes}' + ) + else: + cmd = f'sudo -b /usr/libexec/vyos/commit-confirm-notify.py {minutes}' + os.system(cmd) - msg = f'Initialized commit-confirm; {minutes} minutes to confirm before reboot' + if self.reboot_unconfirmed: + msg = f'Initialized commit-confirm; {minutes} minutes to confirm before reboot' + else: + msg = f'Initialized commit-confirm; {minutes} minutes to confirm before reload' + return msg, 0 - def confirm(self) -> Tuple[str,int]: - """Do not reboot to saved config following 'commit-confirm'. + def confirm(self) -> Tuple[str, int]: + """Do not reboot/reload to saved/completed config following 'commit-confirm'. Update commit log and archive. """ if not is_systemd_service_active(f'{timer_name}.timer'): @@ -224,12 +263,15 @@ Proceed ?''' self._add_log_entry(**entry) self._update_archive() - msg = 'Reboot timer stopped' + if self.reboot_unconfirmed: + msg = 'Reboot timer stopped' + else: + msg = 'Reload timer stopped' + return msg, 0 - def revert(self) -> Tuple[str,int]: - """Reboot to saved config, dropping commits from 'commit-confirm'. - """ + def revert(self) -> Tuple[str, int]: + """Reboot to saved config, dropping commits from 'commit-confirm'.""" _ = self._read_tmp_log_entry() # archived config will be reverted on boot @@ -239,13 +281,39 @@ Proceed ?''' return '', 0 - def rollback(self, rev: int, no_prompt: bool=False) -> Tuple[str,int]: - """Reboot to config revision 'rev'. - """ + def revert_soft(self) -> Tuple[str, int]: + """Reload last revision, dropping commits from 'commit-confirm'.""" + _ = self._read_tmp_log_entry() + + # commits under commit-confirm are not added to revision list unless + # confirmed, hence a soft revert is to revision 0 + revert_ct = self._get_config_tree_revision(0) + + message = '[commit-confirm] Reverting to previous config now' + os.system('wall -n ' + message) + + mask = os.umask(0o002) + session = ConfigSession(os.getpid(), app='config-mgmt') + + try: + session.load_explicit(revert_ct) + session.commit() + except ConfigSessionError as e: + raise ConfigMgmtError(e) from e + finally: + os.umask(mask) + del session + + return '', 0 + + def rollback(self, rev: int, no_prompt: bool = False) -> Tuple[str, int]: + """Reboot to config revision 'rev'.""" msg = '' if not self._check_revision_number(rev): - msg = f'Invalid revision number {rev}: must be 0 < rev < {self.num_revisions}' + msg = ( + f'Invalid revision number {rev}: must be 0 < rev < {self.num_revisions}' + ) return msg, 1 prompt_str = 'Proceed with reboot ?' @@ -274,12 +342,13 @@ Proceed ?''' return msg, 0 def rollback_soft(self, rev: int): - """Rollback without reboot (rollback-soft) - """ + """Rollback without reboot (rollback-soft)""" msg = '' if not self._check_revision_number(rev): - msg = f'Invalid revision number {rev}: must be 0 < rev < {self.num_revisions}' + msg = ( + f'Invalid revision number {rev}: must be 0 < rev < {self.num_revisions}' + ) return msg, 1 rollback_ct = self._get_config_tree_revision(rev) @@ -292,9 +361,13 @@ Proceed ?''' return msg, 0 - def compare(self, saved: bool=False, commands: bool=False, - rev1: Optional[int]=None, - rev2: Optional[int]=None) -> Tuple[str,int]: + def compare( + self, + saved: bool = False, + commands: bool = False, + rev1: Optional[int] = None, + rev2: Optional[int] = None, + ) -> Tuple[str, int]: """General compare function for config file revisions: revision n vs. revision m; working version vs. active version; or working version vs. saved version. @@ -335,7 +408,7 @@ Proceed ?''' return msg, 0 - def wrap_compare(self, options) -> Tuple[str,int]: + def wrap_compare(self, options) -> Tuple[str, int]: """Interface to vyatta-cfg-run: args collected as 'options' to parse for compare. """ @@ -343,7 +416,7 @@ Proceed ?''' r1 = None r2 = None if 'commands' in options: - cmnds=True + cmnds = True options.remove('commands') for i in options: if not i.isnumeric(): @@ -358,8 +431,7 @@ Proceed ?''' # Initialization and post-commit hooks for conf-mode # def initialize_revision(self): - """Initialize config archive, logrotate conf, and commit log. - """ + """Initialize config archive, logrotate conf, and commit log.""" mask = os.umask(0o002) os.makedirs(archive_dir, exist_ok=True) json_dir = os.path.dirname(config_json) @@ -371,8 +443,7 @@ Proceed ?''' self._add_logrotate_conf() - if (not os.path.exists(commit_log_file) or - self._get_number_of_revisions() == 0): + if not os.path.exists(commit_log_file) or self._get_number_of_revisions() == 0: user = self._get_user() via = 'init' comment = '' @@ -399,8 +470,7 @@ Proceed ?''' self._update_archive() def commit_archive(self): - """Upload config to remote archive. - """ + """Upload config to remote archive.""" from vyos.remote import upload hostname = self.hostname @@ -410,20 +480,23 @@ Proceed ?''' source_address = self.source_address if self.effective_locations: - print("Archiving config...") + print('Archiving config...') for location in self.effective_locations: url = urlsplit(location) - _, _, netloc = url.netloc.rpartition("@") + _, _, netloc = url.netloc.rpartition('@') redacted_location = urlunsplit(url._replace(netloc=netloc)) - print(f" {redacted_location}", end=" ", flush=True) - upload(archive_config_file, f'{location}/{remote_file}', - source_host=source_address) + print(f' {redacted_location}', end=' ', flush=True) + upload( + archive_config_file, + f'{location}/{remote_file}', + source_host=source_address, + ) # op-mode functions # def get_raw_log_data(self) -> list: """Return list of dicts of log data: - keys: [timestamp, user, commit_via, commit_comment] + keys: [timestamp, user, commit_via, commit_comment] """ log = self._get_log_entries() res_l = [] @@ -435,20 +508,20 @@ Proceed ?''' @staticmethod def format_log_data(data: list) -> str: - """Return formatted log data as str. - """ + """Return formatted log data as str.""" res_l = [] - for l_no, l in enumerate(data): - time_d = datetime.fromtimestamp(int(l['timestamp'])) - time_str = time_d.strftime("%Y-%m-%d %H:%M:%S") + for l_no, l_val in enumerate(data): + time_d = datetime.fromtimestamp(int(l_val['timestamp'])) + time_str = time_d.strftime('%Y-%m-%d %H:%M:%S') - res_l.append([l_no, time_str, - f"by {l['user']}", f"via {l['commit_via']}"]) + res_l.append( + [l_no, time_str, f"by {l_val['user']}", f"via {l_val['commit_via']}"] + ) - if l['commit_comment'] != 'commit': # default comment - res_l.append([None, l['commit_comment']]) + if l_val['commit_comment'] != 'commit': # default comment + res_l.append([None, l_val['commit_comment']]) - ret = tabulate(res_l, tablefmt="plain") + ret = tabulate(res_l, tablefmt='plain') return ret @staticmethod @@ -459,23 +532,25 @@ Proceed ?''' 'rollback'. """ res_l = [] - for l_no, l in enumerate(data): - time_d = datetime.fromtimestamp(int(l['timestamp'])) - time_str = time_d.strftime("%Y-%m-%d %H:%M:%S") + for l_no, l_val in enumerate(data): + time_d = datetime.fromtimestamp(int(l_val['timestamp'])) + time_str = time_d.strftime('%Y-%m-%d %H:%M:%S') - res_l.append(['\t', l_no, time_str, - f"{l['user']}", f"by {l['commit_via']}"]) + res_l.append( + ['\t', l_no, time_str, f"{l_val['user']}", f"by {l_val['commit_via']}"] + ) - ret = tabulate(res_l, tablefmt="plain") + ret = tabulate(res_l, tablefmt='plain') return ret - def show_commit_diff(self, rev: int, rev2: Optional[int]=None, - commands: bool=False) -> str: + def show_commit_diff( + self, rev: int, rev2: Optional[int] = None, commands: bool = False + ) -> str: """Show commit diff at revision number, compared to previous revision, or to another revision. """ if rev2 is None: - out, _ = self.compare(commands=commands, rev1=rev, rev2=(rev+1)) + out, _ = self.compare(commands=commands, rev1=rev, rev2=(rev + 1)) return out out, _ = self.compare(commands=commands, rev1=rev, rev2=rev2) @@ -519,8 +594,9 @@ Proceed ?''' conf_file.chmod(0o644) def _archive_active_config(self) -> bool: - save_to_tmp = (boot_configuration_complete() or not - os.path.isfile(archive_config_file)) + save_to_tmp = boot_configuration_complete() or not os.path.isfile( + archive_config_file + ) mask = os.umask(0o113) ext = os.getpid() @@ -560,15 +636,14 @@ Proceed ?''' @staticmethod def _update_archive(): - cmd = f"sudo logrotate -f -s {logrotate_state} {logrotate_conf}" + cmd = f'sudo logrotate -f -s {logrotate_state} {logrotate_conf}' rc, out = rc_cmd(cmd) if rc != 0: logger.critical(f'logrotate failure: {out}') @staticmethod def _get_log_entries() -> list: - """Return lines of commit log as list of strings - """ + """Return lines of commit log as list of strings""" entries = [] if os.path.exists(commit_log_file): with open(commit_log_file) as f: @@ -577,8 +652,8 @@ Proceed ?''' return entries def _get_number_of_revisions(self) -> int: - l = self._get_log_entries() - return len(l) + log_entries = self._get_log_entries() + return len(log_entries) def _check_revision_number(self, rev: int) -> bool: self.num_revisions = self._get_number_of_revisions() @@ -599,9 +674,14 @@ Proceed ?''' user = 'unknown' return user - def _new_log_entry(self, user: str='', commit_via: str='', - commit_comment: str='', timestamp: Optional[int]=None, - tmp_file: str=None) -> Optional[str]: + def _new_log_entry( + self, + user: str = '', + commit_via: str = '', + commit_comment: str = '', + timestamp: Optional[int] = None, + tmp_file: str = None, + ) -> Optional[str]: # Format log entry and return str or write to file. # # Usage is within a post-commit hook, using env values. In case of @@ -647,12 +727,12 @@ Proceed ?''' logger.critical(f'Invalid log format {line}') return {} - timestamp, user, commit_via, commit_comment = ( - tuple(line.strip().strip('|').split('|'))) + timestamp, user, commit_via, commit_comment = tuple( + line.strip().strip('|').split('|') + ) commit_comment = commit_comment.replace('%%', '|') - d = dict(zip(keys, [user, commit_via, - commit_comment, timestamp])) + d = dict(zip(keys, [user, commit_via, commit_comment, timestamp])) return d @@ -662,17 +742,28 @@ Proceed ?''' entry = f.read() os.unlink(tmp_log_entry) except OSError as e: - logger.critical(f'error on file {tmp_log_entry}: {e}') + logger.info(f'error on file {tmp_log_entry}: {e}') + # fail gracefully in corner case: + # delete commit-revisions; commit-confirm + return {} return self._get_log_entry(entry) - def _add_log_entry(self, user: str='', commit_via: str='', - commit_comment: str='', timestamp: Optional[int]=None): + def _add_log_entry( + self, + user: str = '', + commit_via: str = '', + commit_comment: str = '', + timestamp: Optional[int] = None, + ): mask = os.umask(0o113) - entry = self._new_log_entry(user=user, commit_via=commit_via, - commit_comment=commit_comment, - timestamp=timestamp) + entry = self._new_log_entry( + user=user, + commit_via=commit_via, + commit_comment=commit_comment, + timestamp=timestamp, + ) log_entries = self._get_log_entries() log_entries.insert(0, entry) @@ -687,6 +778,7 @@ Proceed ?''' os.umask(mask) + # entry_point for console script # def run(): @@ -706,43 +798,54 @@ def run(): parser = ArgumentParser() subparsers = parser.add_subparsers(dest='subcommand') - commit_confirm = subparsers.add_parser('commit_confirm', - help="Commit with opt-out reboot to saved config") - commit_confirm.add_argument('-t', dest='minutes', type=int, - default=DEFAULT_TIME_MINUTES, - help="Minutes until reboot, unless 'confirm'") - commit_confirm.add_argument('-y', dest='no_prompt', action='store_true', - help="Execute without prompt") - - subparsers.add_parser('confirm', help="Confirm commit") - subparsers.add_parser('revert', help="Revert commit-confirm") - - rollback = subparsers.add_parser('rollback', - help="Rollback to earlier config") - rollback.add_argument('--rev', type=int, - help="Revision number for rollback") - rollback.add_argument('-y', dest='no_prompt', action='store_true', - help="Excute without prompt") - - rollback_soft = subparsers.add_parser('rollback_soft', - help="Rollback to earlier config") - rollback_soft.add_argument('--rev', type=int, - help="Revision number for rollback") - - compare = subparsers.add_parser('compare', - help="Compare config files") - - compare.add_argument('--saved', action='store_true', - help="Compare session config with saved config") - compare.add_argument('--commands', action='store_true', - help="Show difference between commands") - compare.add_argument('--rev1', type=int, default=None, - help="Compare revision with session config or other revision") - compare.add_argument('--rev2', type=int, default=None, - help="Compare revisions") - - wrap_compare = subparsers.add_parser('wrap_compare', - help="Wrapper interface for vyatta-cfg-run") + commit_confirm = subparsers.add_parser( + 'commit_confirm', help='Commit with opt-out reboot to saved config' + ) + commit_confirm.add_argument( + '-t', + dest='minutes', + type=int, + default=DEFAULT_TIME_MINUTES, + help="Minutes until reboot, unless 'confirm'", + ) + commit_confirm.add_argument( + '-y', dest='no_prompt', action='store_true', help='Execute without prompt' + ) + + subparsers.add_parser('confirm', help='Confirm commit') + subparsers.add_parser('revert', help='Revert commit-confirm with reboot') + subparsers.add_parser('revert_soft', help='Revert commit-confirm with reload') + + rollback = subparsers.add_parser('rollback', help='Rollback to earlier config') + rollback.add_argument('--rev', type=int, help='Revision number for rollback') + rollback.add_argument( + '-y', dest='no_prompt', action='store_true', help='Excute without prompt' + ) + + rollback_soft = subparsers.add_parser( + 'rollback_soft', help='Rollback to earlier config' + ) + rollback_soft.add_argument('--rev', type=int, help='Revision number for rollback') + + compare = subparsers.add_parser('compare', help='Compare config files') + + compare.add_argument( + '--saved', action='store_true', help='Compare session config with saved config' + ) + compare.add_argument( + '--commands', action='store_true', help='Show difference between commands' + ) + compare.add_argument( + '--rev1', + type=int, + default=None, + help='Compare revision with session config or other revision', + ) + compare.add_argument('--rev2', type=int, default=None, help='Compare revisions') + + wrap_compare = subparsers.add_parser( + 'wrap_compare', help='Wrapper interface for vyatta-cfg-run' + ) wrap_compare.add_argument('--options', nargs=REMAINDER) args = vars(parser.parse_args()) diff --git a/python/vyos/configsession.py b/python/vyos/configsession.py index 7d51b94e4..9c56d246a 100644 --- a/python/vyos/configsession.py +++ b/python/vyos/configsession.py @@ -32,15 +32,34 @@ SHOW_CONFIG = ['/bin/cli-shell-api', 'showConfig'] LOAD_CONFIG = ['/bin/cli-shell-api', 'loadFile'] MIGRATE_LOAD_CONFIG = ['/usr/libexec/vyos/vyos-load-config.py'] SAVE_CONFIG = ['/usr/libexec/vyos/vyos-save-config.py'] -INSTALL_IMAGE = ['/usr/libexec/vyos/op_mode/image_installer.py', - '--action', 'add', '--no-prompt', '--image-path'] +INSTALL_IMAGE = [ + '/usr/libexec/vyos/op_mode/image_installer.py', + '--action', + 'add', + '--no-prompt', + '--image-path', +] IMPORT_PKI = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'import'] -IMPORT_PKI_NO_PROMPT = ['/usr/libexec/vyos/op_mode/pki.py', - '--action', 'import', '--no-prompt'] -REMOVE_IMAGE = ['/usr/libexec/vyos/op_mode/image_manager.py', - '--action', 'delete', '--no-prompt', '--image-name'] -SET_DEFAULT_IMAGE = ['/usr/libexec/vyos/op_mode/image_manager.py', - '--action', 'set', '--no-prompt', '--image-name'] +IMPORT_PKI_NO_PROMPT = [ + '/usr/libexec/vyos/op_mode/pki.py', + '--action', + 'import', + '--no-prompt', +] +REMOVE_IMAGE = [ + '/usr/libexec/vyos/op_mode/image_manager.py', + '--action', + 'delete', + '--no-prompt', + '--image-name', +] +SET_DEFAULT_IMAGE = [ + '/usr/libexec/vyos/op_mode/image_manager.py', + '--action', + 'set', + '--no-prompt', + '--image-name', +] GENERATE = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'generate'] SHOW = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'show'] RESET = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'reset'] @@ -50,7 +69,8 @@ OP_CMD_ADD = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'add'] OP_CMD_DELETE = ['/opt/vyatta/bin/vyatta-op-cmd-wrapper', 'delete'] # Default "commit via" string -APP = "vyos-http-api" +APP = 'vyos-http-api' + # When started as a service rather than from a user shell, # the process lacks the VyOS-specific environment that comes @@ -61,7 +81,7 @@ def inject_vyos_env(env): env['VYATTA_USER_LEVEL_DIR'] = '/opt/vyatta/etc/shell/level/admin' env['VYATTA_PROCESS_CLIENT'] = 'gui2_rest' env['VYOS_HEADLESS_CLIENT'] = 'vyos_http_api' - env['vyatta_bindir']= '/opt/vyatta/bin' + env['vyatta_bindir'] = '/opt/vyatta/bin' env['vyatta_cfg_templates'] = '/opt/vyatta/share/vyatta-cfg/templates' env['vyatta_configdir'] = directories['vyos_configdir'] env['vyatta_datadir'] = '/opt/vyatta/share' @@ -78,7 +98,7 @@ def inject_vyos_env(env): env['vyos_configdir'] = directories['vyos_configdir'] env['vyos_conf_scripts_dir'] = '/usr/libexec/vyos/conf_mode' env['vyos_datadir'] = '/opt/vyatta/share' - env['vyos_datarootdir']= '/opt/vyatta/share' + env['vyos_datarootdir'] = '/opt/vyatta/share' env['vyos_libdir'] = '/opt/vyatta/lib' env['vyos_libexec_dir'] = '/usr/libexec/vyos' env['vyos_op_scripts_dir'] = '/usr/libexec/vyos/op_mode' @@ -102,6 +122,7 @@ class ConfigSession(object): """ The write API of VyOS. """ + def __init__(self, session_id, app=APP): """ Creates a new config session. @@ -116,7 +137,9 @@ class ConfigSession(object): and used the PID for the session identifier. """ - env_str = subprocess.check_output([CLI_SHELL_API, 'getSessionEnv', str(session_id)]) + env_str = subprocess.check_output( + [CLI_SHELL_API, 'getSessionEnv', str(session_id)] + ) self.__session_id = session_id # Extract actual variables from the chunk of shell it outputs @@ -129,20 +152,39 @@ class ConfigSession(object): session_env[k] = v self.__session_env = session_env - self.__session_env["COMMIT_VIA"] = app + self.__session_env['COMMIT_VIA'] = app self.__run_command([CLI_SHELL_API, 'setupSession']) def __del__(self): try: - output = subprocess.check_output([CLI_SHELL_API, 'teardownSession'], env=self.__session_env).decode().strip() + output = ( + subprocess.check_output( + [CLI_SHELL_API, 'teardownSession'], env=self.__session_env + ) + .decode() + .strip() + ) if output: - print("cli-shell-api teardownSession output for sesion {0}: {1}".format(self.__session_id, output), file=sys.stderr) + print( + 'cli-shell-api teardownSession output for sesion {0}: {1}'.format( + self.__session_id, output + ), + file=sys.stderr, + ) except Exception as e: - print("Could not tear down session {0}: {1}".format(self.__session_id, e), file=sys.stderr) + print( + 'Could not tear down session {0}: {1}'.format(self.__session_id, e), + file=sys.stderr, + ) def __run_command(self, cmd_list): - p = subprocess.Popen(cmd_list, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, env=self.__session_env) + p = subprocess.Popen( + cmd_list, + stdout=subprocess.PIPE, + stderr=subprocess.STDOUT, + env=self.__session_env, + ) (stdout_data, stderr_data) = p.communicate() output = stdout_data.decode() result = p.wait() @@ -204,7 +246,7 @@ class ConfigSession(object): def comment(self, path, value=None): if not value: - value = [""] + value = [''] else: value = [value] self.__run_command([COMMENT] + path + value) @@ -226,6 +268,15 @@ class ConfigSession(object): out = self.__run_command(LOAD_CONFIG + [file_path]) return out + def load_explicit(self, file_path): + from vyos.load_config import load + from vyos.load_config import LoadConfigError + + try: + load(file_path, switch='explicit') + except LoadConfigError as e: + raise ConfigSessionError(e) from e + def migrate_and_load_config(self, file_path): out = self.__run_command(MIGRATE_LOAD_CONFIG + [file_path]) return out diff --git a/src/conf_mode/system_config-management.py b/src/conf_mode/system_config-management.py index c681a8405..8de4e5342 100755 --- a/src/conf_mode/system_config-management.py +++ b/src/conf_mode/system_config-management.py @@ -22,6 +22,7 @@ from vyos.config import Config from vyos.config_mgmt import ConfigMgmt from vyos.config_mgmt import commit_post_hook_dir, commit_hooks + def get_config(config=None): if config: conf = config @@ -36,22 +37,29 @@ def get_config(config=None): return mgmt -def verify(_mgmt): + +def verify(mgmt): + d = mgmt.config_dict + confirm = d.get('commit_confirm', {}) + if confirm.get('action', '') == 'reload' and 'commit_revisions' not in d: + raise ConfigError('commit-confirm reload requires non-zero commit-revisions') + return + def generate(mgmt): if mgmt is None: return mgmt.initialize_revision() + def apply(mgmt): if mgmt is None: return locations = mgmt.locations - archive_target = os.path.join(commit_post_hook_dir, - commit_hooks['commit_archive']) + archive_target = os.path.join(commit_post_hook_dir, commit_hooks['commit_archive']) if locations: try: os.symlink('/usr/bin/config-mgmt', archive_target) @@ -68,8 +76,9 @@ def apply(mgmt): raise ConfigError from exc revisions = mgmt.max_revisions - revision_target = os.path.join(commit_post_hook_dir, - commit_hooks['commit_revision']) + revision_target = os.path.join( + commit_post_hook_dir, commit_hooks['commit_revision'] + ) if revisions > 0: try: os.symlink('/usr/bin/config-mgmt', revision_target) @@ -85,6 +94,7 @@ def apply(mgmt): except OSError as exc: raise ConfigError from exc + if __name__ == '__main__': try: c = get_config() diff --git a/src/helpers/commit-confirm-notify.py b/src/helpers/commit-confirm-notify.py index 8d7626c78..af6167651 100755 --- a/src/helpers/commit-confirm-notify.py +++ b/src/helpers/commit-confirm-notify.py @@ -2,30 +2,56 @@ import os import sys import time +from argparse import ArgumentParser # Minutes before reboot to trigger notification. intervals = [1, 5, 15, 60] -def notify(interval): - s = "" if interval == 1 else "s" +parser = ArgumentParser() +parser.add_argument( + 'minutes', type=int, help='minutes before rollback to trigger notification' +) +parser.add_argument( + '--reboot', action='store_true', help="use 'soft' rollback instead of reboot" +) + + +def notify(interval, reboot=False): + s = '' if interval == 1 else 's' time.sleep((minutes - interval) * 60) - message = ('"[commit-confirm] System is going to reboot in ' - f'{interval} minute{s} to rollback the last commit.\n' - 'Confirm your changes to cancel the reboot."') - os.system("wall -n " + message) + if reboot: + message = ( + '"[commit-confirm] System will reboot in ' + f'{interval} minute{s}\nto rollback the last commit.\n' + 'Confirm your changes to cancel the reboot."' + ) + os.system('wall -n ' + message) + else: + message = ( + '"[commit-confirm] System will reload previous config in ' + f'{interval} minute{s}\nto rollback the last commit.\n' + 'Confirm your changes to cancel the reload."' + ) + os.system('wall -n ' + message) + -if __name__ == "__main__": +if __name__ == '__main__': # Must be run as root to call wall(1) without a banner. - if len(sys.argv) != 2 or os.getuid() != 0: + if os.getuid() != 0: print('This script requires superuser privileges.', file=sys.stderr) exit(1) - minutes = int(sys.argv[1]) + + args = parser.parse_args() + + minutes = args.minutes + reboot = args.reboot + # Drop the argument from the list so that the notification # doesn't kick in immediately. if minutes in intervals: intervals.remove(minutes) for interval in sorted(intervals, reverse=True): if minutes >= interval: - notify(interval) - minutes -= (minutes - interval) + notify(interval, reboot=reboot) + minutes -= minutes - interval exit(0) |