495 lines
22 KiB
Python
495 lines
22 KiB
Python
# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import operator
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import optparse
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import os
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import sys
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import time
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import yaml
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import re
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import getpass
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import subprocess
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from ansible import __version__
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from ansible import constants as C
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from ansible.errors import AnsibleError, AnsibleOptionsError
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from ansible.utils.unicode import to_bytes
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from ansible.utils.display import Display
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from ansible.utils.path import is_executable
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class SortedOptParser(optparse.OptionParser):
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'''Optparser which sorts the options by opt before outputting --help'''
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#FIXME: epilog parsing: OptionParser.format_epilog = lambda self, formatter: self.epilog
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def format_help(self, formatter=None, epilog=None):
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self.option_list.sort(key=operator.methodcaller('get_opt_string'))
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return optparse.OptionParser.format_help(self, formatter=None)
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class CLI(object):
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''' code behind bin/ansible* programs '''
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VALID_ACTIONS = ['No Actions']
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_ITALIC = re.compile(r"I\(([^)]+)\)")
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_BOLD = re.compile(r"B\(([^)]+)\)")
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_MODULE = re.compile(r"M\(([^)]+)\)")
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_URL = re.compile(r"U\(([^)]+)\)")
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_CONST = re.compile(r"C\(([^)]+)\)")
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PAGER = 'less'
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LESS_OPTS = 'FRSX' # -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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def __init__(self, args, display=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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self.args = args
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self.options = None
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self.parser = None
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self.action = None
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if display is None:
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self.display = Display()
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else:
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self.display = display
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def set_action(self):
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"""
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Get the action the user wants to execute from the sys argv list.
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"""
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for i in range(0,len(self.args)):
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arg = self.args[i]
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if arg in self.VALID_ACTIONS:
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self.action = arg
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del self.args[i]
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break
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if not self.action:
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raise AnsibleOptionsError("Missing required action")
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def execute(self):
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"""
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Actually runs a child defined method using the execute_<action> pattern
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"""
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fn = getattr(self, "execute_%s" % self.action)
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fn()
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def parse(self):
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raise Exception("Need to implement!")
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def run(self):
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if self.options.verbosity > 0:
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self.display.display("Using %s as config file" % C.CONFIG_FILE)
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@staticmethod
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def ask_vault_passwords(ask_vault_pass=False, ask_new_vault_pass=False, confirm_vault=False, confirm_new=False):
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''' prompt for vault password and/or password change '''
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vault_pass = None
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new_vault_pass = None
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try:
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if ask_vault_pass:
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vault_pass = getpass.getpass(prompt="Vault password: ")
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if ask_vault_pass and confirm_vault:
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vault_pass2 = getpass.getpass(prompt="Confirm Vault password: ")
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if vault_pass != vault_pass2:
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raise errors.AnsibleError("Passwords do not match")
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if ask_new_vault_pass:
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new_vault_pass = getpass.getpass(prompt="New Vault password: ")
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if ask_new_vault_pass and confirm_new:
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new_vault_pass2 = getpass.getpass(prompt="Confirm New Vault password: ")
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if new_vault_pass != new_vault_pass2:
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raise errors.AnsibleError("Passwords do not match")
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except EOFError:
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pass
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# enforce no newline chars at the end of passwords
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if vault_pass:
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vault_pass = to_bytes(vault_pass, errors='strict', nonstring='simplerepr').strip()
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if new_vault_pass:
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new_vault_pass = to_bytes(new_vault_pass, errors='strict', nonstring='simplerepr').strip()
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return vault_pass, new_vault_pass
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def ask_passwords(self):
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''' prompt for connection and become passwords if needed '''
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op = self.options
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sshpass = None
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becomepass = None
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become_prompt = ''
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try:
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if op.ask_pass:
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sshpass = getpass.getpass(prompt="SSH password: ")
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become_prompt = "%s password[defaults to SSH password]: " % op.become_method.upper()
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if sshpass:
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sshpass = to_bytes(sshpass, errors='strict', nonstring='simplerepr')
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else:
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become_prompt = "%s password: " % op.become_method.upper()
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if op.become_ask_pass:
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becomepass = getpass.getpass(prompt=become_prompt)
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if op.ask_pass and becomepass == '':
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becomepass = sshpass
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if becomepass:
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becomepass = to_bytes(becomepass)
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except EOFError:
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pass
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return (sshpass, becomepass)
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def normalize_become_options(self):
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''' this keeps backwards compatibility with sudo/su self.options '''
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self.options.become_ask_pass = self.options.become_ask_pass or self.options.ask_sudo_pass or self.options.ask_su_pass or C.DEFAULT_BECOME_ASK_PASS
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self.options.become_user = self.options.become_user or self.options.sudo_user or self.options.su_user or C.DEFAULT_BECOME_USER
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if self.options.become:
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pass
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elif self.options.sudo:
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self.options.become = True
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self.options.become_method = 'sudo'
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elif self.options.su:
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self.options.become = True
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self.options.become_method = 'su'
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def validate_conflicts(self, vault_opts=False, runas_opts=False):
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''' check for conflicting options '''
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op = self.options
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if vault_opts:
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# Check for vault related conflicts
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if (op.ask_vault_pass and op.vault_password_file):
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self.parser.error("--ask-vault-pass and --vault-password-file are mutually exclusive")
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if runas_opts:
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# Check for privilege escalation conflicts
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if (op.su or op.su_user or op.ask_su_pass) and \
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(op.sudo or op.sudo_user or op.ask_sudo_pass) or \
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(op.su or op.su_user or op.ask_su_pass) and \
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(op.become or op.become_user or op.become_ask_pass) or \
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(op.sudo or op.sudo_user or op.ask_sudo_pass) and \
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(op.become or op.become_user or op.become_ask_pass):
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self.parser.error("Sudo arguments ('--sudo', '--sudo-user', and '--ask-sudo-pass') "
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"and su arguments ('-su', '--su-user', and '--ask-su-pass') "
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"and become arguments ('--become', '--become-user', and '--ask-become-pass')"
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" are exclusive of each other")
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@staticmethod
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def expand_tilde(option, opt, value, parser):
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setattr(parser.values, option.dest, os.path.expanduser(value))
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@staticmethod
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def base_parser(usage="", output_opts=False, runas_opts=False, meta_opts=False, runtask_opts=False, vault_opts=False,
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async_opts=False, connect_opts=False, subset_opts=False, check_opts=False, diff_opts=False, epilog=None, fork_opts=False):
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''' create an options parser for most ansible scripts '''
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#FIXME: implemente epilog parsing
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#OptionParser.format_epilog = lambda self, formatter: self.epilog
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# base opts
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parser = SortedOptParser(usage, version=CLI.version("%prog"))
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parser.add_option('-v','--verbose', dest='verbosity', default=0, action="count",
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help="verbose mode (-vvv for more, -vvvv to enable connection debugging)")
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if runtask_opts:
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parser.add_option('-i', '--inventory-file', dest='inventory',
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help="specify inventory host file (default=%s)" % C.DEFAULT_HOST_LIST,
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default=C.DEFAULT_HOST_LIST, action="callback", callback=CLI.expand_tilde, type=str)
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parser.add_option('--list-hosts', dest='listhosts', action='store_true',
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help='outputs a list of matching hosts; does not execute anything else')
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parser.add_option('-M', '--module-path', dest='module_path',
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help="specify path(s) to module library (default=%s)" % C.DEFAULT_MODULE_PATH, default=None,
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action="callback", callback=CLI.expand_tilde, type=str)
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parser.add_option('-e', '--extra-vars', dest="extra_vars", action="append",
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help="set additional variables as key=value or YAML/JSON", default=[])
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if fork_opts:
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parser.add_option('-f','--forks', dest='forks', default=C.DEFAULT_FORKS, type='int',
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help="specify number of parallel processes to use (default=%s)" % C.DEFAULT_FORKS)
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parser.add_option('-l', '--limit', default=C.DEFAULT_SUBSET, dest='subset',
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help='further limit selected hosts to an additional pattern')
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if vault_opts:
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parser.add_option('--ask-vault-pass', default=False, dest='ask_vault_pass', action='store_true',
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help='ask for vault password')
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parser.add_option('--vault-password-file', default=C.DEFAULT_VAULT_PASSWORD_FILE,
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dest='vault_password_file', help="vault password file", action="callback",
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callback=CLI.expand_tilde, type=str)
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if subset_opts:
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parser.add_option('-t', '--tags', dest='tags', default='all',
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help="only run plays and tasks tagged with these values")
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parser.add_option('--skip-tags', dest='skip_tags',
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help="only run plays and tasks whose tags do not match these values")
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if output_opts:
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parser.add_option('-o', '--one-line', dest='one_line', action='store_true',
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help='condense output')
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parser.add_option('-t', '--tree', dest='tree', default=None,
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help='log output to this directory')
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if runas_opts:
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# priv user defaults to root later on to enable detecting when this option was given here
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parser.add_option('-K', '--ask-sudo-pass', default=C.DEFAULT_ASK_SUDO_PASS, dest='ask_sudo_pass', action='store_true',
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help='ask for sudo password (deprecated, use become)')
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parser.add_option('--ask-su-pass', default=C.DEFAULT_ASK_SU_PASS, dest='ask_su_pass', action='store_true',
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help='ask for su password (deprecated, use become)')
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parser.add_option("-s", "--sudo", default=C.DEFAULT_SUDO, action="store_true", dest='sudo',
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help="run operations with sudo (nopasswd) (deprecated, use become)")
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parser.add_option('-U', '--sudo-user', dest='sudo_user', default=None,
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help='desired sudo user (default=root) (deprecated, use become)')
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parser.add_option('-S', '--su', default=C.DEFAULT_SU, action='store_true',
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help='run operations with su (deprecated, use become)')
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parser.add_option('-R', '--su-user', default=None,
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help='run operations with su as this user (default=%s) (deprecated, use become)' % C.DEFAULT_SU_USER)
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# consolidated privilege escalation (become)
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parser.add_option("-b", "--become", default=C.DEFAULT_BECOME, action="store_true", dest='become',
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help="run operations with become (nopasswd implied)")
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parser.add_option('--become-method', dest='become_method', default=C.DEFAULT_BECOME_METHOD, type='string',
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help="privilege escalation method to use (default=%s), valid choices: [ %s ]" % (C.DEFAULT_BECOME_METHOD, ' | '.join(C.BECOME_METHODS)))
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parser.add_option('--become-user', default=None, dest='become_user', type='string',
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help='run operations as this user (default=%s)' % C.DEFAULT_BECOME_USER)
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parser.add_option('--ask-become-pass', default=False, dest='become_ask_pass', action='store_true',
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help='ask for privilege escalation password')
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if connect_opts:
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parser.add_option('-k', '--ask-pass', default=False, dest='ask_pass', action='store_true',
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help='ask for connection password')
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parser.add_option('--private-key','--key-file', default=C.DEFAULT_PRIVATE_KEY_FILE, dest='private_key_file',
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help='use this file to authenticate the connection')
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parser.add_option('-u', '--user', default=C.DEFAULT_REMOTE_USER, dest='remote_user',
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help='connect as this user (default=%s)' % C.DEFAULT_REMOTE_USER)
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parser.add_option('-c', '--connection', dest='connection', default=C.DEFAULT_TRANSPORT,
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help="connection type to use (default=%s)" % C.DEFAULT_TRANSPORT)
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parser.add_option('-T', '--timeout', default=C.DEFAULT_TIMEOUT, type='int', dest='timeout',
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help="override the connection timeout in seconds (default=%s)" % C.DEFAULT_TIMEOUT)
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if async_opts:
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parser.add_option('-P', '--poll', default=C.DEFAULT_POLL_INTERVAL, type='int',
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dest='poll_interval',
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help="set the poll interval if using -B (default=%s)" % C.DEFAULT_POLL_INTERVAL)
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parser.add_option('-B', '--background', dest='seconds', type='int', default=0,
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help='run asynchronously, failing after X seconds (default=N/A)')
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if check_opts:
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parser.add_option("-C", "--check", default=False, dest='check', action='store_true',
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help="don't make any changes; instead, try to predict some of the changes that may occur")
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parser.add_option('--syntax-check', dest='syntax', action='store_true',
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help="perform a syntax check on the playbook, but do not execute it")
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if diff_opts:
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parser.add_option("-D", "--diff", default=False, dest='diff', action='store_true',
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help="when changing (small) files and templates, show the differences in those files; works great with --check"
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)
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if meta_opts:
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parser.add_option('--force-handlers', default=C.DEFAULT_FORCE_HANDLERS, dest='force_handlers', action='store_true',
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help="run handlers even if a task fails")
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parser.add_option('--flush-cache', dest='flush_cache', action='store_true',
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help="clear the fact cache")
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return parser
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@staticmethod
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def version(prog):
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''' return ansible version '''
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result = "{0} {1}".format(prog, __version__)
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gitinfo = CLI._gitinfo()
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if gitinfo:
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result = result + " {0}".format(gitinfo)
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result = result + "\n configured module search path = %s" % C.DEFAULT_MODULE_PATH
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return result
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@staticmethod
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def version_info(gitinfo=False):
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''' return full ansible version info '''
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if gitinfo:
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# expensive call, user with care
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ansible_version_string = version('')
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else:
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ansible_version_string = __version__
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ansible_version = ansible_version_string.split()[0]
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ansible_versions = ansible_version.split('.')
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for counter in range(len(ansible_versions)):
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if ansible_versions[counter] == "":
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ansible_versions[counter] = 0
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try:
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ansible_versions[counter] = int(ansible_versions[counter])
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except:
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pass
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if len(ansible_versions) < 3:
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for counter in range(len(ansible_versions), 3):
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ansible_versions.append(0)
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return {'string': ansible_version_string.strip(),
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'full': ansible_version,
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'major': ansible_versions[0],
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'minor': ansible_versions[1],
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'revision': ansible_versions[2]}
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@staticmethod
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def _git_repo_info(repo_path):
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''' returns a string containing git branch, commit id and commit date '''
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result = None
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if os.path.exists(repo_path):
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# Check if the .git is a file. If it is a file, it means that we are in a submodule structure.
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if os.path.isfile(repo_path):
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try:
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gitdir = yaml.safe_load(open(repo_path)).get('gitdir')
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# There is a possibility the .git file to have an absolute path.
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if os.path.isabs(gitdir):
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repo_path = gitdir
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else:
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repo_path = os.path.join(repo_path[:-4], gitdir)
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except (IOError, AttributeError):
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return ''
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f = open(os.path.join(repo_path, "HEAD"))
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branch = f.readline().split('/')[-1].rstrip("\n")
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f.close()
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branch_path = os.path.join(repo_path, "refs", "heads", branch)
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if os.path.exists(branch_path):
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f = open(branch_path)
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commit = f.readline()[:10]
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f.close()
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else:
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# detached HEAD
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commit = branch[:10]
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branch = 'detached HEAD'
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branch_path = os.path.join(repo_path, "HEAD")
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date = time.localtime(os.stat(branch_path).st_mtime)
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if time.daylight == 0:
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offset = time.timezone
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else:
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offset = time.altzone
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result = "({0} {1}) last updated {2} (GMT {3:+04d})".format(branch, commit,
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time.strftime("%Y/%m/%d %H:%M:%S", date), int(offset / -36))
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else:
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result = ''
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return result
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@staticmethod
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def _gitinfo():
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basedir = os.path.join(os.path.dirname(__file__), '..', '..', '..')
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repo_path = os.path.join(basedir, '.git')
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result = CLI._git_repo_info(repo_path)
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submodules = os.path.join(basedir, '.gitmodules')
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if not os.path.exists(submodules):
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return result
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f = open(submodules)
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for line in f:
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tokens = line.strip().split(' ')
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if tokens[0] == 'path':
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submodule_path = tokens[2]
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submodule_info = CLI._git_repo_info(os.path.join(basedir, submodule_path, '.git'))
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if not submodule_info:
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submodule_info = ' not found - use git submodule update --init ' + submodule_path
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result += "\n {0}: {1}".format(submodule_path, submodule_info)
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f.close()
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return result
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@staticmethod
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def pager(text):
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''' find reasonable way to display text '''
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# 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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print(text)
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elif 'PAGER' in os.environ:
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if sys.platform == 'win32':
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print(text)
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else:
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CLI.pager_pipe(text, os.environ['PAGER'])
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elif subprocess.call('(less --version) 2> /dev/null', shell = True) == 0:
|
|
CLI.pager_pipe(text, 'less')
|
|
else:
|
|
print(text)
|
|
|
|
@staticmethod
|
|
def pager_pipe(text, cmd):
|
|
''' pipe text through a pager '''
|
|
if 'LESS' not in os.environ:
|
|
os.environ['LESS'] = CLI.LESS_OPTS
|
|
try:
|
|
cmd = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=sys.stdout)
|
|
cmd.communicate(input=text)
|
|
except IOError:
|
|
pass
|
|
except KeyboardInterrupt:
|
|
pass
|
|
|
|
@classmethod
|
|
def tty_ify(self, text):
|
|
|
|
t = self._ITALIC.sub("`" + r"\1" + "'", text) # I(word) => `word'
|
|
t = self._BOLD.sub("*" + r"\1" + "*", t) # B(word) => *word*
|
|
t = self._MODULE.sub("[" + r"\1" + "]", t) # M(word) => [word]
|
|
t = self._URL.sub(r"\1", t) # U(word) => word
|
|
t = self._CONST.sub("`" + r"\1" + "'", t) # C(word) => `word'
|
|
|
|
return t
|
|
|
|
@staticmethod
|
|
def read_vault_password_file(vault_password_file):
|
|
"""
|
|
Read a vault password from a file or if executable, execute the script and
|
|
retrieve password from STDOUT
|
|
"""
|
|
|
|
this_path = os.path.realpath(os.path.expanduser(vault_password_file))
|
|
if not os.path.exists(this_path):
|
|
raise AnsibleError("The vault password file %s was not found" % this_path)
|
|
|
|
if is_executable(this_path):
|
|
try:
|
|
# STDERR not captured to make it easier for users to prompt for input in their scripts
|
|
p = subprocess.Popen(this_path, stdout=subprocess.PIPE)
|
|
except OSError as e:
|
|
raise AnsibleError("Problem running vault password script %s (%s). If this is not a script, remove the executable bit from the file." % (' '.join(this_path), e))
|
|
stdout, stderr = p.communicate()
|
|
vault_pass = stdout.strip('\r\n')
|
|
else:
|
|
try:
|
|
f = open(this_path, "rb")
|
|
vault_pass=f.read().strip()
|
|
f.close()
|
|
except (OSError, IOError) as e:
|
|
raise AnsibleError("Could not read vault password file %s: %s" % (this_path, e))
|
|
|
|
return vault_pass
|
|
|