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1st part of ansible config, adds ansible-config to view/manage configs (
ansible#12797) * Start of ansible config project moved configuration definitions to external yaml file vs hardcoded * updated constants to be a data strcutures that are looped over and also return origin of setting changed to manager/data scheme for base classes new cli ansible-config to view/manage ansible configuration settings * prints green for default/unchanged and yellow for those that have been overriden * added list action to show all configurable settings and their associated ini and env var names * allows specifying config file to see what result would look like * TBD update, edit and view options removed test for functions that have been removed env_Vars are now list of dicts allows for version_added and deprecation in future added a couple of descriptions for future doc autogeneration ensure test does not fail if delete_me exists normalized 'path expansion' added yaml config to setup packaging removed unused imports better encoding handling updated as per feedback * pep8
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ansible |
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#!/usr/bin/env python | ||
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import ast | ||
import yaml | ||
import os | ||
import sys | ||
from ansible.parsing.yaml.dumper import AnsibleDumper | ||
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things = {} | ||
stuff = {} | ||
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op_map = { | ||
ast.Add: '+', | ||
ast.Sub: '-', | ||
ast.Mult: '*', | ||
ast.Div: '/', | ||
} | ||
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def get_values(values): | ||
if not isinstance(values, list): | ||
return get_value(values) | ||
ret = [] | ||
for value in values: | ||
ret.append(get_value(value)) | ||
return ret | ||
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def get_value(value): | ||
if hasattr(value, 'id'): | ||
ret = value.id | ||
elif hasattr(value, 's'): | ||
ret = value.s | ||
elif hasattr(value, 'n'): | ||
ret = value.n | ||
elif hasattr(value, 'left'): | ||
operator = op_map[type(value.op)] | ||
left = get_values(value.left) | ||
right = get_values(value.right) | ||
return '%s %s %s' % (left, operator, right) | ||
elif hasattr(value, 'value'): | ||
ret = value.value | ||
elif hasattr(value, 'elts'): | ||
ret = get_values(value.elts) | ||
elif isinstance(value, ast.Call): | ||
func, args, kwargs = get_call(value) | ||
args[:] = [repr(arg) for arg in args] | ||
for k, v in kwargs.items(): | ||
args.append('%s=%s' % (k, repr(v))) | ||
return '%s(%s)' % (func, ', '.join(args)) | ||
else: | ||
return value | ||
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return get_value(ret) | ||
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def get_call(value): | ||
args = [] | ||
for arg in value.args: | ||
v = get_value(arg) | ||
try: | ||
v = getattr(C, v, v) | ||
except: | ||
pass | ||
args.append(v) | ||
kwargs = {} | ||
for keyword in value.keywords: | ||
v = get_value(keyword.value) | ||
try: | ||
v = getattr(C, v, v) | ||
except: | ||
pass | ||
kwargs[keyword.arg] = v | ||
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func = get_value(value.func) | ||
try: | ||
attr = '.%s' % value.func.attr | ||
except: | ||
attr = '' | ||
return '%s%s' % (func, attr), args, kwargs | ||
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with open(sys.argv[1]) as f: | ||
tree = ast.parse(f.read()) | ||
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for item in tree.body: | ||
if hasattr(item, 'value') and isinstance(item.value, ast.Call): | ||
try: | ||
if item.value.func.id != 'get_config': | ||
continue | ||
except AttributeError: | ||
continue | ||
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_, args, kwargs = get_call(item.value) | ||
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name = get_value(item.targets[0]) | ||
section = args[1].lower() | ||
config = args[2] | ||
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# new form | ||
if name not in stuff: | ||
stuff[name] = {} | ||
stuff[name] = { | ||
'desc': 'TODO: write it', | ||
'ini': [{'section': section, 'key': config}], | ||
'env': [args[3]], | ||
'default': args[4] if len(args) == 5 else None, | ||
'yaml': {'key': '%s.%s' % (section, config)}, | ||
'vars': [] | ||
} | ||
stuff[name].update(kwargs) | ||
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## ini like | ||
#if section not in things: | ||
# things[section] = {} | ||
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#things[section][config] = { | ||
# 'env_var': args[3], | ||
# 'default': args[4] if len(args) == 5 else 'UNKNOWN' | ||
#} | ||
#things[section][config].update(kwargs) | ||
print(yaml.dump(stuff, Dumper=AnsibleDumper, indent=2, width=170)) | ||
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# (c) 2017, Ansible by Red Hat, Inc. | ||
# | ||
# Ansible is free software: you can redistribute it and/or modify | ||
# it under the terms of the GNU General Public License as published by | ||
# the Free Software Foundation, either version 3 of the License, or | ||
# (at your option) any later version. | ||
# | ||
# Ansible is distributed in the hope that it will be useful, | ||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
# GNU General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License | ||
# along with Ansible. If not, see <http://www.gnu.org/licenses/>. | ||
# | ||
# ansible-vault is a script that encrypts/decrypts YAML files. See | ||
# http://docs.ansible.com/playbooks_vault.html for more details. | ||
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from __future__ import (absolute_import, division, print_function) | ||
__metaclass__ = type | ||
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import os | ||
import shlex | ||
import subprocess | ||
import sys | ||
import yaml | ||
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from ansible.cli import CLI | ||
from ansible.config.data import Setting | ||
from ansible.config.manager import ConfigManager | ||
from ansible.errors import AnsibleError, AnsibleOptionsError | ||
from ansible.module_utils._text import to_native, to_text | ||
from ansible.parsing.yaml.dumper import AnsibleDumper | ||
from ansible.utils.color import stringc | ||
from ansible.utils.path import unfrackpath | ||
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try: | ||
from __main__ import display | ||
except ImportError: | ||
from ansible.utils.display import Display | ||
display = Display() | ||
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class ConfigCLI(CLI): | ||
""" Config command line class """ | ||
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VALID_ACTIONS = ("view", "edit", "update", "dump", "list") | ||
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def __init__(self, args, callback=None): | ||
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self.config_file = None | ||
self.config = None | ||
super(ConfigCLI, self).__init__(args, callback) | ||
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def parse(self): | ||
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self.parser = CLI.base_parser( | ||
usage = "usage: %%prog [%s] [--help] [options] [ansible.cfg]" % "|".join(self.VALID_ACTIONS), | ||
epilog = "\nSee '%s <command> --help' for more information on a specific command.\n\n" % os.path.basename(sys.argv[0]) | ||
) | ||
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self.parser.add_option('-c', '--config', dest='config_file', help="path to configuration file, defaults to first file found in precedence.") | ||
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self.set_action() | ||
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# options specific to self.actions | ||
if self.action == "list": | ||
self.parser.set_usage("usage: %prog list [options] ") | ||
if self.action == "dump": | ||
self.parser.set_usage("usage: %prog dump [options] [-c ansible.cfg]") | ||
elif self.action == "view": | ||
self.parser.set_usage("usage: %prog view [options] [-c ansible.cfg] ") | ||
elif self.action == "edit": | ||
self.parser.set_usage("usage: %prog edit [options] [-c ansible.cfg]") | ||
elif self.action == "update": | ||
self.parser.add_option('-s', '--setting', dest='setting', help="config setting, the section defaults to 'defaults'") | ||
self.parser.set_usage("usage: %prog update [options] [-c ansible.cfg] -s '[section.]setting=value'") | ||
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self.options, self.args = self.parser.parse_args() | ||
display.verbosity = self.options.verbosity | ||
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def run(self): | ||
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super(ConfigCLI, self).run() | ||
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if self.options.config_file: | ||
self.config_file = unfrackpath(self.options.config_file, follow=False) | ||
self.config = ConfigManager(self.config_file) | ||
else: | ||
self.config = ConfigManager() | ||
self.config_file = self.config.data.get_setting('ANSIBLE_CONFIG') | ||
try: | ||
if not os.path.exists(self.config_file): | ||
raise AnsibleOptionsError("%s does not exist or is not accessible" % (self.config_file)) | ||
elif not os.path.isfile(self.config_file): | ||
raise AnsibleOptionsError("%s is not a valid file" % (self.config_file)) | ||
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os.environ['ANSIBLE_CONFIG'] = self.config_file | ||
except: | ||
if self.action in ['view']: | ||
raise | ||
elif self.action in ['edit', 'update']: | ||
display.warning("File does not exist, used empty file: %s" % self.config_file) | ||
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self.execute() | ||
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def execute_update(self): | ||
''' | ||
Updates a single setting in the specified ansible.cfg | ||
''' | ||
raise AnsibleError("Option not implemented yet") | ||
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if self.options.setting is None: | ||
raise AnsibleOptionsError("update option requries a setting to update") | ||
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(entry, value) = self.options.setting.split('=') | ||
if '.' in entry: | ||
(section, option) = entry.split('.') | ||
else: | ||
section = 'defaults' | ||
option = entry | ||
subprocess.call([ | ||
'ansible', | ||
'-m','ini_file', | ||
'localhost', | ||
'-c','local', | ||
'-a','"dest=%s section=%s option=%s value=%s backup=yes"' % (self.config_file, section, option, value) | ||
]) | ||
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def execute_view(self): | ||
''' | ||
Displays the current config file | ||
''' | ||
try: | ||
with open(self.config_file, 'rb') as f: | ||
self.pager(to_text(f.read(), errors='surrogate_or_strict')) | ||
except Exception as e: | ||
raise AnsibleError("Failed to open config file: %s" % to_native(e)) | ||
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def execute_edit(self): | ||
''' | ||
Opens ansible.cfg in the default EDITOR | ||
''' | ||
raise AnsibleError("Option not implemented yet") | ||
try: | ||
editor = shlex.split(os.environ.get('EDITOR','vi')) | ||
editor.append(self.config_file) | ||
subprocess.call(editor) | ||
except Exception as e: | ||
raise AnsibleError("Failed to open editor: %s" % to_native(e)) | ||
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def execute_list(self): | ||
''' | ||
list all current configs reading lib/constants.py and shows env and config file setting names | ||
''' | ||
self.pager(to_text(yaml.dump(self.config.initial_defs, Dumper=AnsibleDumper), errors='surrogate_or_strict')) | ||
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def execute_dump(self): | ||
''' | ||
Shows the current settings, merges ansible.cfg if specified | ||
''' | ||
text = [] | ||
defaults = self.config.initial_defs.copy() | ||
for setting in self.config.data.get_settings(): | ||
if setting.name in defaults: | ||
defaults[setting.name] = setting | ||
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for setting in sorted(defaults): | ||
if isinstance(defaults[setting], Setting): | ||
if defaults[setting].origin == 'default': | ||
color = 'green' | ||
else: | ||
color = 'yellow' | ||
msg = "%s(%s) = %s" % (setting, defaults[setting].origin, defaults[setting].value) | ||
else: | ||
color = 'green' | ||
msg = "%s(%s) = %s" % (setting, 'default', defaults[setting].get('default')) | ||
text.append(stringc(msg, color)) | ||
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self.pager(to_text('\n'.join(text), errors='surrogate_or_strict')) |
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