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action plugins: use f-strings (#9318)
* action plugins: use f-strings * add changelog frag * adjustment from review
This commit is contained in:
Alexei Znamensky
GitHub
parent
1d8f0b2942
commit
79bef1a14c
3 changed files with 62 additions and 61 deletions
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@ -18,6 +18,10 @@ from ansible.utils.display import Display
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display = Display()
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def fmt(mapping, key):
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return to_native(mapping[key]).strip()
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class TimedOutException(Exception):
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pass
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@ -84,31 +88,26 @@ class ActionModule(ActionBase):
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def get_distribution(self, task_vars):
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# FIXME: only execute the module if we don't already have the facts we need
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distribution = {}
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display.debug('{action}: running setup module to get distribution'.format(action=self._task.action))
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display.debug(f'{self._task.action}: running setup module to get distribution')
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module_output = self._execute_module(
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task_vars=task_vars,
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module_name='ansible.legacy.setup',
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module_args={'gather_subset': 'min'})
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try:
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if module_output.get('failed', False):
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raise AnsibleError('Failed to determine system distribution. {0}, {1}'.format(
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to_native(module_output['module_stdout']).strip(),
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to_native(module_output['module_stderr']).strip()))
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raise AnsibleError(f"Failed to determine system distribution. {fmt(module_output, 'module_stdout')}, {fmt(module_output, 'module_stderr')}")
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distribution['name'] = module_output['ansible_facts']['ansible_distribution'].lower()
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distribution['version'] = to_text(
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module_output['ansible_facts']['ansible_distribution_version'].split('.')[0])
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distribution['family'] = to_text(module_output['ansible_facts']['ansible_os_family'].lower())
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display.debug("{action}: distribution: {dist}".format(action=self._task.action, dist=distribution))
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display.debug(f"{self._task.action}: distribution: {distribution}")
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return distribution
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except KeyError as ke:
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raise AnsibleError('Failed to get distribution information. Missing "{0}" in output.'.format(ke.args[0]))
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raise AnsibleError(f'Failed to get distribution information. Missing "{ke.args[0]}" in output.')
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def get_shutdown_command(self, task_vars, distribution):
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def find_command(command, find_search_paths):
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display.debug('{action}: running find module looking in {paths} to get path for "{command}"'.format(
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action=self._task.action,
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command=command,
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paths=find_search_paths))
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display.debug(f'{self._task.action}: running find module looking in {find_search_paths} to get path for "{command}"')
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find_result = self._execute_module(
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task_vars=task_vars,
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# prevent collection search by calling with ansible.legacy (still allows library/ override of find)
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@ -130,42 +129,37 @@ class ActionModule(ActionBase):
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if is_string(search_paths):
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search_paths = [search_paths]
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# Error if we didn't get a list
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err_msg = "'search_paths' must be a string or flat list of strings, got {0}"
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try:
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incorrect_type = any(not is_string(x) for x in search_paths)
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if not isinstance(search_paths, list) or incorrect_type:
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raise TypeError
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except TypeError:
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raise AnsibleError(err_msg.format(search_paths))
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# Error if we didn't get a list
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err_msg = f"'search_paths' must be a string or flat list of strings, got {search_paths}"
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raise AnsibleError(err_msg)
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full_path = find_command(shutdown_bin, search_paths) # find the path to the shutdown command
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if not full_path: # if we could not find the shutdown command
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display.vvv('Unable to find command "{0}" in search paths: {1}, will attempt a shutdown using systemd '
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'directly.'.format(shutdown_bin, search_paths)) # tell the user we will try with systemd
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# tell the user we will try with systemd
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display.vvv(f'Unable to find command "{shutdown_bin}" in search paths: {search_paths}, will attempt a shutdown using systemd directly.')
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systemctl_search_paths = ['/bin', '/usr/bin']
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full_path = find_command('systemctl', systemctl_search_paths) # find the path to the systemctl command
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if not full_path: # if we couldn't find systemctl
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raise AnsibleError(
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'Could not find command "{0}" in search paths: {1} or systemctl command in search paths: {2}, unable to shutdown.'.
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format(shutdown_bin, search_paths, systemctl_search_paths)) # we give up here
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f'Could not find command "{shutdown_bin}" in search paths: {search_paths} or systemctl'
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f' command in search paths: {systemctl_search_paths}, unable to shutdown.') # we give up here
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else:
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return "{0} poweroff".format(full_path[0]) # done, since we cannot use args with systemd shutdown
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return f"{full_path[0]} poweroff" # done, since we cannot use args with systemd shutdown
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# systemd case taken care of, here we add args to the command
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args = self._get_value_from_facts('SHUTDOWN_COMMAND_ARGS', distribution, 'DEFAULT_SHUTDOWN_COMMAND_ARGS')
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# Convert seconds to minutes. If less that 60, set it to 0.
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delay_sec = self.delay
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shutdown_message = self._task.args.get('msg', self.DEFAULT_SHUTDOWN_MESSAGE)
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return '{0} {1}'. \
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format(
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full_path[0],
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args.format(
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delay_sec=delay_sec,
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delay_min=delay_sec // 60,
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message=shutdown_message
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)
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)
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af = args.format(delay_sec=delay_sec, delay_min=delay_sec // 60, message=shutdown_message)
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return f'{full_path[0]} {af}'
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def perform_shutdown(self, task_vars, distribution):
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result = {}
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@ -174,9 +168,8 @@ class ActionModule(ActionBase):
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self.cleanup(force=True)
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try:
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display.vvv("{action}: shutting down server...".format(action=self._task.action))
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display.debug("{action}: shutting down server with command '{command}'".
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format(action=self._task.action, command=shutdown_command_exec))
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display.vvv(f"{self._task.action}: shutting down server...")
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display.debug(f"{self._task.action}: shutting down server with command '{shutdown_command_exec}'")
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if self._play_context.check_mode:
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shutdown_result['rc'] = 0
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else:
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@ -184,16 +177,13 @@ class ActionModule(ActionBase):
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except AnsibleConnectionFailure as e:
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# If the connection is closed too quickly due to the system being shutdown, carry on
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display.debug(
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'{action}: AnsibleConnectionFailure caught and handled: {error}'.format(action=self._task.action,
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error=to_text(e)))
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f'{self._task.action}: AnsibleConnectionFailure caught and handled: {to_text(e)}')
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shutdown_result['rc'] = 0
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if shutdown_result['rc'] != 0:
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result['failed'] = True
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result['shutdown'] = False
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result['msg'] = "Shutdown command failed. Error was {stdout}, {stderr}".format(
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stdout=to_native(shutdown_result['stdout'].strip()),
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stderr=to_native(shutdown_result['stderr'].strip()))
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result['msg'] = f"Shutdown command failed. Error was {fmt(shutdown_result, 'stdout')}, {fmt(shutdown_result, 'stderr')}"
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return result
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result['failed'] = False
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@ -206,7 +196,7 @@ class ActionModule(ActionBase):
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# If running with local connection, fail so we don't shutdown ourself
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if self._connection.transport == 'local' and (not self._play_context.check_mode):
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msg = 'Running {0} with local connection would shutdown the control node.'.format(self._task.action)
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msg = f'Running {self._task.action} with local connection would shutdown the control node.'
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return {'changed': False, 'elapsed': 0, 'shutdown': False, 'failed': True, 'msg': msg}
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if task_vars is None:
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