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679 lines
27 KiB
Python
679 lines
27 KiB
Python
# Copyright: (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
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# Copyright: (c) 2016, Toshio Kuratomi <tkuratomi@ansible.com>
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# Copyright: (c) 2018, Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import annotations
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import locale
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import os
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import sys
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# We overload the ``ansible`` adhoc command to provide the functionality for
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# ``SSH_ASKPASS``. This code is here, and not in ``adhoc.py`` to bypass
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# unnecessary code. The program provided to ``SSH_ASKPASS`` can only be invoked
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# as a singular command, ``python -m`` doesn't work for that use case, and we
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# aren't adding a new entrypoint at this time. Assume that if we are executing
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# and there is only a single item in argv plus the executable, and the env var
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# is set we are in ``SSH_ASKPASS`` mode
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if 1 <= len(sys.argv) <= 2 and os.path.basename(sys.argv[0]) == "ansible" and os.getenv('_ANSIBLE_SSH_ASKPASS_SHM'):
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from ansible.cli import _ssh_askpass
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_ssh_askpass.main()
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# Used for determining if the system is running a new enough python version
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# and should only restrict on our documented minimum versions
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_PY_MIN = (3, 12)
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if sys.version_info < _PY_MIN:
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raise SystemExit(
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f"ERROR: Ansible requires Python {'.'.join(map(str, _PY_MIN))} or newer on the controller. "
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f"Current version: {''.join(sys.version.splitlines())}"
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)
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def check_blocking_io():
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"""Check stdin/stdout/stderr to make sure they are using blocking IO."""
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handles = []
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for handle in (sys.stdin, sys.stdout, sys.stderr):
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# noinspection PyBroadException
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try:
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fd = handle.fileno()
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except Exception:
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continue # not a real file handle, such as during the import sanity test
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if not os.get_blocking(fd):
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handles.append(getattr(handle, 'name', None) or '#%s' % fd)
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if handles:
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raise SystemExit('ERROR: Ansible requires blocking IO on stdin/stdout/stderr. '
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'Non-blocking file handles detected: %s' % ', '.join(_io for _io in handles))
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check_blocking_io()
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def initialize_locale():
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"""Set the locale to the users default setting and ensure
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the locale and filesystem encoding are UTF-8.
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"""
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try:
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locale.setlocale(locale.LC_ALL, '')
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dummy, encoding = locale.getlocale()
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except (locale.Error, ValueError) as e:
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raise SystemExit(
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'ERROR: Ansible could not initialize the preferred locale: %s' % e
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)
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if not encoding or encoding.lower() not in ('utf-8', 'utf8'):
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raise SystemExit('ERROR: Ansible requires the locale encoding to be UTF-8; Detected %s.' % encoding)
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fs_enc = sys.getfilesystemencoding()
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if fs_enc.lower() != 'utf-8':
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raise SystemExit('ERROR: Ansible requires the filesystem encoding to be UTF-8; Detected %s.' % fs_enc)
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initialize_locale()
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import getpass
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import subprocess
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import traceback
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from abc import ABC, abstractmethod
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from pathlib import Path
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from ansible import _internal # do not remove or defer; ensures controller-specific state is set early
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_internal.setup()
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from ansible.errors import AnsibleError, ExitCode
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try:
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from ansible import constants as C
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from ansible.utils.display import Display
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display = Display()
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except Exception as ex:
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if isinstance(ex, AnsibleError):
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ex_msg = ' '.join((ex.message, ex._help_text or '')).strip()
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else:
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ex_msg = str(ex)
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print(f'ERROR: {ex_msg}\n\n{"".join(traceback.format_exception(ex))}', file=sys.stderr)
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sys.exit(5)
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from ansible import context
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from ansible.utils import display as _display
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from ansible.cli.arguments import option_helpers as opt_help
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from ansible.inventory.manager import InventoryManager
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from ansible.module_utils.common.text.converters import to_bytes, to_text
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from ansible.module_utils.common.collections import is_sequence
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from ansible.module_utils.common.file import is_executable
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from ansible.parsing.dataloader import DataLoader
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from ansible.parsing.vault import PromptVaultSecret, get_file_vault_secret, VaultSecretsContext
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from ansible.plugins.loader import add_all_plugin_dirs, init_plugin_loader
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from ansible.release import __version__
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from ansible.utils.collection_loader import AnsibleCollectionConfig
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from ansible.utils.collection_loader._collection_finder import _get_collection_name_from_path
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from ansible.utils.path import unfrackpath
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from ansible.vars.manager import VariableManager
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from ansible.module_utils._internal import _deprecator
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from ansible._internal._ssh import _agent_launch
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try:
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import argcomplete
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HAS_ARGCOMPLETE = True
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except ImportError:
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HAS_ARGCOMPLETE = False
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class CLI(ABC):
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""" code behind bin/ansible* programs """
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PAGER = C.config.get_config_value('PAGER')
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# -F (quit-if-one-screen) -R (allow raw ansi control chars)
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# -S (chop long lines) -X (disable termcap init and de-init)
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LESS_OPTS = 'FRSX'
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SKIP_INVENTORY_DEFAULTS = False
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USES_CONNECTION = False
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def __init__(self, args, callback=None):
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"""
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Base init method for all command line programs
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"""
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if not args:
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raise ValueError('A non-empty list for args is required')
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self.args = args
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self.parser = None
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self.callback = callback
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self.show_devel_warning()
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def show_devel_warning(self) -> None:
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if C.DEVEL_WARNING and __version__.endswith('dev0'):
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display.warning(
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'You are running the development version of Ansible. You should only run Ansible from "devel" if '
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'you are modifying the Ansible engine, or trying out features under development. This is a rapidly '
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'changing source of code and can become unstable at any point.'
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)
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@abstractmethod
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def run(self):
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"""Run the ansible command
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Subclasses must implement this method. It does the actual work of
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running an Ansible command.
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"""
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self.parse()
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# Initialize plugin loader after parse, so that the init code can utilize parsed arguments
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cli_collections_path = context.CLIARGS.get('collections_path') or []
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if not is_sequence(cli_collections_path):
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# In some contexts ``collections_path`` is singular
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cli_collections_path = [cli_collections_path]
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init_plugin_loader(cli_collections_path)
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display.vv(to_text(opt_help.version(self.parser.prog)))
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if C.CONFIG_FILE:
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display.v(u"Using %s as config file" % to_text(C.CONFIG_FILE))
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else:
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display.v(u"No config file found; using defaults")
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_display._report_config_warnings(_deprecator.ANSIBLE_CORE_DEPRECATOR)
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@staticmethod
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def split_vault_id(vault_id):
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# return (before_@, after_@)
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# if no @, return whole string as after_
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if '@' not in vault_id:
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return (None, vault_id)
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parts = vault_id.split('@', 1)
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ret = tuple(parts)
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return ret
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@staticmethod
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def build_vault_ids(vault_ids, vault_password_files=None,
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ask_vault_pass=None, auto_prompt=True):
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vault_password_files = vault_password_files or []
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vault_ids = vault_ids or []
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# convert vault_password_files into vault_ids slugs
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for password_file in vault_password_files:
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id_slug = u'%s@%s' % (C.DEFAULT_VAULT_IDENTITY, password_file)
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# note this makes --vault-id higher precedence than --vault-password-file
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# if we want to intertwingle them in order probably need a cli callback to populate vault_ids
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# used by --vault-id and --vault-password-file
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vault_ids.append(id_slug)
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# if an action needs an encrypt password (create_new_password=True) and we don't
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# have other secrets setup, then automatically add a password prompt as well.
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# prompts can't/shouldn't work without a tty, so don't add prompt secrets
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if ask_vault_pass or (not vault_ids and auto_prompt):
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id_slug = u'%s@%s' % (C.DEFAULT_VAULT_IDENTITY, u'prompt_ask_vault_pass')
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vault_ids.append(id_slug)
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return vault_ids
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@staticmethod
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def setup_vault_secrets(loader, vault_ids, vault_password_files=None,
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ask_vault_pass=None, create_new_password=False,
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auto_prompt=True, initialize_context=True):
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# list of tuples
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vault_secrets = []
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# Depending on the vault_id value (including how --ask-vault-pass / --vault-password-file create a vault_id)
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# we need to show different prompts. This is for compat with older Towers that expect a
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# certain vault password prompt format, so 'promp_ask_vault_pass' vault_id gets the old format.
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prompt_formats = {}
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# If there are configured default vault identities, they are considered 'first'
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# so we prepend them to vault_ids (from cli) here
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vault_password_files = vault_password_files or []
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if C.DEFAULT_VAULT_PASSWORD_FILE:
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vault_password_files.append(C.DEFAULT_VAULT_PASSWORD_FILE)
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if create_new_password:
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prompt_formats['prompt'] = ['New vault password (%(vault_id)s): ',
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'Confirm new vault password (%(vault_id)s): ']
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# 2.3 format prompts for --ask-vault-pass
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prompt_formats['prompt_ask_vault_pass'] = ['New Vault password: ',
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'Confirm New Vault password: ']
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else:
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prompt_formats['prompt'] = ['Vault password (%(vault_id)s): ']
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# The format when we use just --ask-vault-pass needs to match 'Vault password:\s*?$'
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prompt_formats['prompt_ask_vault_pass'] = ['Vault password: ']
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vault_ids = CLI.build_vault_ids(vault_ids,
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vault_password_files,
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ask_vault_pass,
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auto_prompt=auto_prompt)
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last_exception = found_vault_secret = None
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for vault_id_slug in vault_ids:
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vault_id_name, vault_id_value = CLI.split_vault_id(vault_id_slug)
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if vault_id_value in ['prompt', 'prompt_ask_vault_pass']:
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# --vault-id some_name@prompt_ask_vault_pass --vault-id other_name@prompt_ask_vault_pass will be a little
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# confusing since it will use the old format without the vault id in the prompt
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built_vault_id = vault_id_name or C.DEFAULT_VAULT_IDENTITY
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# choose the prompt based on --vault-id=prompt or --ask-vault-pass. --ask-vault-pass
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# always gets the old format for Tower compatibility.
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# ie, we used --ask-vault-pass, so we need to use the old vault password prompt
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# format since Tower needs to match on that format.
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prompted_vault_secret = PromptVaultSecret(prompt_formats=prompt_formats[vault_id_value],
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vault_id=built_vault_id)
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# a empty or invalid password from the prompt will warn and continue to the next
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# without erroring globally
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try:
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prompted_vault_secret.load()
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except AnsibleError as exc:
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display.warning('Error in vault password prompt (%s): %s' % (vault_id_name, exc))
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raise
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found_vault_secret = True
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vault_secrets.append((built_vault_id, prompted_vault_secret))
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# update loader with new secrets incrementally, so we can load a vault password
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# that is encrypted with a vault secret provided earlier
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loader.set_vault_secrets(vault_secrets)
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continue
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# assuming anything else is a password file
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display.vvvvv('Reading vault password file: %s' % vault_id_value)
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# read vault_pass from a file
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try:
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file_vault_secret = get_file_vault_secret(filename=vault_id_value,
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vault_id=vault_id_name,
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loader=loader)
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except AnsibleError as exc:
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display.warning('Error getting vault password file (%s): %s' % (vault_id_name, to_text(exc)))
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last_exception = exc
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continue
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try:
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file_vault_secret.load()
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except AnsibleError as exc:
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display.warning('Error in vault password file loading (%s): %s' % (vault_id_name, to_text(exc)))
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last_exception = exc
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continue
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found_vault_secret = True
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if vault_id_name:
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vault_secrets.append((vault_id_name, file_vault_secret))
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else:
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vault_secrets.append((C.DEFAULT_VAULT_IDENTITY, file_vault_secret))
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# update loader with as-yet-known vault secrets
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loader.set_vault_secrets(vault_secrets)
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# An invalid or missing password file will error globally
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# if no valid vault secret was found.
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if last_exception and not found_vault_secret:
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raise last_exception
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if initialize_context:
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VaultSecretsContext.initialize(VaultSecretsContext(vault_secrets))
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return vault_secrets
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@staticmethod
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def _get_secret(prompt: str) -> str:
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return getpass.getpass(prompt=prompt)
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@staticmethod
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def ask_passwords():
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""" prompt for connection and become passwords if needed """
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op = context.CLIARGS
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sshpass = None
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becomepass = None
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become_prompt_method = "BECOME" if C.AGNOSTIC_BECOME_PROMPT else op['become_method'].upper()
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try:
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become_prompt = "%s password: " % become_prompt_method
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if op['ask_pass']:
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sshpass = CLI._get_secret("SSH password: ")
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become_prompt = "%s password[defaults to SSH password]: " % become_prompt_method
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elif op['connection_password_file']:
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sshpass = CLI.get_password_from_file(op['connection_password_file'])
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if op['become_ask_pass']:
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becomepass = CLI._get_secret(become_prompt)
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if op['ask_pass'] and becomepass == '':
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becomepass = sshpass
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elif op['become_password_file']:
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becomepass = CLI.get_password_from_file(op['become_password_file'])
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except EOFError:
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pass
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return sshpass, becomepass
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def validate_conflicts(self, op, runas_opts=False, fork_opts=False):
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""" check for conflicting options """
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if fork_opts:
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if op.forks < 1:
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self.parser.error("The number of processes (--forks) must be >= 1")
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return op
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@abstractmethod
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def init_parser(self, desc=None, epilog=None):
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"""
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Create an options parser for most ansible scripts
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Subclasses need to implement this method. They will usually call the base class's
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init_parser to create a basic version and then add their own options on top of that.
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An implementation will look something like this::
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def init_parser(self):
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super(MyCLI, self).init_parser(desc='The purpose of the program is...')
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ansible.arguments.option_helpers.add_runas_options(self.parser)
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self.parser.add_option('--my-option', dest='my_option', action='store')
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"""
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self.parser = opt_help.create_base_parser(self.name, desc=desc, epilog=epilog)
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@abstractmethod
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def post_process_args(self, options):
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"""Process the command line args
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Subclasses need to implement this method. This method validates and transforms the command
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line arguments. It can be used to check whether conflicting values were given, whether filenames
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exist, etc.
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An implementation will look something like this::
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def post_process_args(self, options):
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options = super(MyCLI, self).post_process_args(options)
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if options.addition and options.subtraction:
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raise AnsibleOptionsError('Only one of --addition and --subtraction can be specified')
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if isinstance(options.listofhosts, str):
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options.listofhosts = options.listofhosts.split(',')
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return options
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"""
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# process tags
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if hasattr(options, 'tags') and not options.tags:
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# optparse defaults does not do what's expected
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# More specifically, we want `--tags` to be additive. So we cannot
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# simply change C.TAGS_RUN's default to ["all"] because then passing
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# --tags foo would cause us to have ['all', 'foo']
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options.tags = ['all']
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if hasattr(options, 'tags') and options.tags:
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tags = set()
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for tag_set in options.tags:
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for tag in tag_set.split(u','):
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tags.add(tag.strip())
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options.tags = list(tags)
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# process skip_tags
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if hasattr(options, 'skip_tags') and options.skip_tags:
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skip_tags = set()
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for tag_set in options.skip_tags:
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for tag in tag_set.split(u','):
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skip_tags.add(tag.strip())
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options.skip_tags = list(skip_tags)
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# Make sure path argument doesn't have a backslash
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if hasattr(options, 'action') and options.action in ['install', 'download'] and hasattr(options, 'args'):
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options.args = [path.rstrip("/") for path in options.args]
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# process inventory options except for CLIs that require their own processing
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if hasattr(options, 'inventory') and not self.SKIP_INVENTORY_DEFAULTS:
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if options.inventory:
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# should always be list
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if isinstance(options.inventory, str):
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options.inventory = [options.inventory]
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# Ensure full paths when needed
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options.inventory = [unfrackpath(opt, follow=False) if ',' not in opt else opt for opt in options.inventory]
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else:
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options.inventory = C.DEFAULT_HOST_LIST
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return options
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def parse(self):
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"""Parse the command line args
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This method parses the command line arguments. It uses the parser
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stored in the self.parser attribute and saves the args and options in
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context.CLIARGS.
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Subclasses need to implement two helper methods, init_parser() and post_process_args() which
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are called from this function before and after parsing the arguments.
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"""
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self.init_parser()
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if HAS_ARGCOMPLETE:
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argcomplete.autocomplete(self.parser)
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try:
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options = self.parser.parse_args(self.args[1:])
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except SystemExit as ex:
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if ex.code != 0:
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self.parser.exit(status=2, message=" \n%s" % self.parser.format_help())
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raise
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options = self.post_process_args(options)
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context._init_global_context(options)
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@staticmethod
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|
def version_info(gitinfo=False):
|
|
""" return full ansible version info """
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|
if gitinfo:
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|
# expensive call, user with care
|
|
ansible_version_string = opt_help.version()
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|
else:
|
|
ansible_version_string = __version__
|
|
ansible_version = ansible_version_string.split()[0]
|
|
ansible_versions = ansible_version.split('.')
|
|
for counter in range(len(ansible_versions)):
|
|
if ansible_versions[counter] == "":
|
|
ansible_versions[counter] = 0
|
|
try:
|
|
ansible_versions[counter] = int(ansible_versions[counter])
|
|
except Exception:
|
|
pass
|
|
if len(ansible_versions) < 3:
|
|
for counter in range(len(ansible_versions), 3):
|
|
ansible_versions.append(0)
|
|
return {'string': ansible_version_string.strip(),
|
|
'full': ansible_version,
|
|
'major': ansible_versions[0],
|
|
'minor': ansible_versions[1],
|
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'revision': ansible_versions[2]}
|
|
|
|
@staticmethod
|
|
def pager(text):
|
|
""" find reasonable way to display text """
|
|
# this is a much simpler form of what is in pydoc.py
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if not sys.stdout.isatty():
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display.display(text, screen_only=True)
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elif CLI.PAGER:
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if sys.platform == 'win32':
|
|
display.display(text, screen_only=True)
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else:
|
|
CLI.pager_pipe(text)
|
|
else:
|
|
p = subprocess.Popen('less --version', shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
p.communicate()
|
|
if p.returncode == 0:
|
|
CLI.pager_pipe(text, 'less')
|
|
else:
|
|
display.display(text, screen_only=True)
|
|
|
|
@staticmethod
|
|
def pager_pipe(text):
|
|
""" pipe text through a pager """
|
|
if 'less' in CLI.PAGER:
|
|
os.environ['LESS'] = CLI.LESS_OPTS
|
|
try:
|
|
cmd = subprocess.Popen(CLI.PAGER, shell=True, stdin=subprocess.PIPE, stdout=sys.stdout)
|
|
cmd.communicate(input=to_bytes(text))
|
|
except (OSError, KeyboardInterrupt):
|
|
pass
|
|
|
|
def _play_prereqs(self):
|
|
# TODO: evaluate moving all of the code that touches ``AnsibleCollectionConfig``
|
|
# into ``init_plugin_loader`` so that we can specifically remove
|
|
# ``AnsibleCollectionConfig.playbook_paths`` to make it immutable after instantiation
|
|
|
|
options = context.CLIARGS
|
|
|
|
# all needs loader
|
|
loader = DataLoader()
|
|
|
|
basedir = options.get('basedir', False)
|
|
if basedir:
|
|
loader.set_basedir(basedir)
|
|
add_all_plugin_dirs(basedir)
|
|
AnsibleCollectionConfig.playbook_paths = basedir
|
|
default_collection = _get_collection_name_from_path(basedir)
|
|
if default_collection:
|
|
display.warning(u'running with default collection {0}'.format(default_collection))
|
|
AnsibleCollectionConfig.default_collection = default_collection
|
|
|
|
vault_ids = list(options['vault_ids'])
|
|
default_vault_ids = C.DEFAULT_VAULT_IDENTITY_LIST
|
|
vault_ids = default_vault_ids + vault_ids
|
|
|
|
vault_secrets = CLI.setup_vault_secrets(loader,
|
|
vault_ids=vault_ids,
|
|
vault_password_files=list(options['vault_password_files']),
|
|
ask_vault_pass=options['ask_vault_pass'],
|
|
auto_prompt=False)
|
|
loader.set_vault_secrets(vault_secrets)
|
|
|
|
if self.USES_CONNECTION:
|
|
_agent_launch.launch_ssh_agent()
|
|
|
|
# create the inventory, and filter it based on the subset specified (if any)
|
|
inventory = InventoryManager(loader=loader, sources=options['inventory'], cache=(not options.get('flush_cache')))
|
|
|
|
# create the variable manager, which will be shared throughout
|
|
# the code, ensuring a consistent view of global variables
|
|
variable_manager = VariableManager(loader=loader, inventory=inventory, version_info=CLI.version_info(gitinfo=False))
|
|
|
|
# flush fact cache if requested
|
|
if options['flush_cache']:
|
|
CLI._flush_cache(inventory, variable_manager)
|
|
|
|
return loader, inventory, variable_manager
|
|
|
|
@staticmethod
|
|
def _flush_cache(inventory, variable_manager):
|
|
variable_manager.clear_facts('localhost')
|
|
for host in inventory.list_hosts():
|
|
hostname = host.get_name()
|
|
variable_manager.clear_facts(hostname)
|
|
|
|
@staticmethod
|
|
def get_host_list(inventory, subset, pattern='all'):
|
|
|
|
no_hosts = False
|
|
if len(inventory.list_hosts()) == 0:
|
|
# Empty inventory
|
|
if C.LOCALHOST_WARNING and pattern not in C.LOCALHOST:
|
|
display.warning("provided hosts list is empty, only localhost is available. Note that the implicit localhost does not match 'all'")
|
|
no_hosts = True
|
|
|
|
inventory.subset(subset)
|
|
|
|
hosts = inventory.list_hosts(pattern)
|
|
if not hosts and no_hosts is False:
|
|
raise AnsibleError("Specified inventory, host pattern and/or --limit leaves us with no hosts to target.")
|
|
|
|
return hosts
|
|
|
|
@staticmethod
|
|
def get_password_from_file(pwd_file: str) -> str:
|
|
b_pwd_file = to_bytes(pwd_file)
|
|
|
|
if b_pwd_file == b'-':
|
|
# ensure its read as bytes
|
|
secret = sys.stdin.buffer.read()
|
|
|
|
elif not os.path.exists(b_pwd_file):
|
|
raise AnsibleError("The password file %s was not found" % pwd_file)
|
|
|
|
elif is_executable(b_pwd_file):
|
|
display.vvvv(u'The password file %s is a script.' % to_text(pwd_file))
|
|
cmd = [b_pwd_file]
|
|
|
|
try:
|
|
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
except OSError as e:
|
|
raise AnsibleError("Problem occurred when trying to run the password script %s (%s)."
|
|
" If this is not a script, remove the executable bit from the file." % (pwd_file, e))
|
|
|
|
stdout, stderr = p.communicate()
|
|
if p.returncode != 0:
|
|
raise AnsibleError("The password script %s returned an error (rc=%s): %s" % (pwd_file, p.returncode, to_text(stderr)))
|
|
secret = stdout
|
|
|
|
else:
|
|
try:
|
|
with open(b_pwd_file, "rb") as password_file:
|
|
secret = password_file.read().strip()
|
|
except OSError as ex:
|
|
raise AnsibleError(f"Could not read password file {pwd_file!r}.") from ex
|
|
|
|
secret = secret.strip(b'\r\n')
|
|
|
|
if not secret:
|
|
raise AnsibleError('Empty password was provided from file (%s)' % pwd_file)
|
|
|
|
return to_text(secret)
|
|
|
|
@classmethod
|
|
def cli_executor(cls, args=None):
|
|
if args is None:
|
|
args = sys.argv
|
|
|
|
try:
|
|
display.debug("starting run")
|
|
|
|
ansible_dir = Path(C.ANSIBLE_HOME).expanduser()
|
|
try:
|
|
ansible_dir.mkdir(mode=0o700, exist_ok=True)
|
|
except OSError as ex:
|
|
display.error_as_warning(f"Failed to create the directory {ansible_dir!r}.", ex)
|
|
else:
|
|
display.debug("Created the '%s' directory" % ansible_dir)
|
|
|
|
cli = cls(args)
|
|
exit_code = cli.run()
|
|
except AnsibleError as ex:
|
|
display.error(ex)
|
|
exit_code = ex._exit_code
|
|
except KeyboardInterrupt:
|
|
display.error("User interrupted execution")
|
|
exit_code = ExitCode.KEYBOARD_INTERRUPT
|
|
except Exception as ex:
|
|
try:
|
|
raise AnsibleError("Unexpected Exception, this is probably a bug.") from ex
|
|
except AnsibleError as ex2:
|
|
# DTFIX-FUTURE: clean this up so we're not hacking the internals- re-wrap in an AnsibleCLIUnhandledError that always shows TB, or?
|
|
from ansible.module_utils._internal import _traceback
|
|
_traceback._is_traceback_enabled = lambda *_args, **_kwargs: True
|
|
display.error(ex2)
|
|
exit_code = ExitCode.UNKNOWN_ERROR
|
|
|
|
sys.exit(exit_code)
|