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214 lines
7.7 KiB
214 lines
7.7 KiB
# -*- coding: utf-8 -*-
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#
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# 2011-2013 Steven Armstrong (steven-cdist at armstrong.cc)
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# 2011-2013 Nico Schottelius (nico-cdist at schottelius.org)
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#
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# This file is part of cdist.
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#
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# cdist 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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# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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import logging
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import os
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import cdist
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from . import util
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'''
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common:
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runs only locally, does not need remote
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env:
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PATH: prepend directory with type emulator symlinks == local.bin_path
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__target_host: the target host we are working on
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__target_hostname: the target hostname provided from __target_host
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__target_fqdn: the target's fully qualified domain name provided from
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__target_host
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__global: full qualified path to the global
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output dir == local.out_path
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__cdist_manifest: full qualified path of the manifest == script
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__cdist_type_base_path: full qualified path to the directory where
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types are defined for use in type emulator
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== local.type_path
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__files: full qualified path to the files dir
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__target_host_tags: comma spearated list of host tags
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initial manifest is:
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script: full qualified path to the initial manifest
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env:
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__manifest: path to .../conf/manifest/ == local.manifest_path
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creates: new objects through type emulator
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type manifeste is:
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script: full qualified path to the type manifest
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env:
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__object: full qualified path to the object's dir
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__object_id: the objects id
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__object_fq: full qualified object id, iow: $type.name + / + object_id
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__type: full qualified path to the type's dir
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creates: new objects through type emulator
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'''
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class NoInitialManifestError(cdist.Error):
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"""
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Display missing initial manifest:
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- Display path if user given
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- try to resolve link if it is a link
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- Omit path if default (is a linked path in temp directory without
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much help)
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"""
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def __init__(self, manifest_path, user_supplied):
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msg_header = "Initial manifest missing"
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if user_supplied:
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if os.path.islink(manifest_path):
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self.message = "%s: %s -> %s" % (
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msg_header, manifest_path,
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os.path.realpath(manifest_path))
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else:
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self.message = "%s: %s" % (msg_header, manifest_path)
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else:
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self.message = "%s" % (msg_header)
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def __str__(self):
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return repr(self.message)
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class Manifest(object):
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"""Executes cdist manifests.
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"""
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def __init__(self, target_host, local, dry_run=False):
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self.target_host = target_host
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self.local = local
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self._open_logger()
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self.env = {
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'PATH': "%s:%s" % (self.local.bin_path, os.environ['PATH']),
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# for use in type emulator
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'__cdist_type_base_path': self.local.type_path,
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'__global': self.local.base_path,
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'__target_host': self.target_host[0],
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'__target_hostname': self.target_host[1],
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'__target_fqdn': self.target_host[2],
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'__files': self.local.files_path,
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'__target_host_tags': self.local.target_host_tags,
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'__cdist_log_level': util.log_level_env_var_val(self.log),
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'__cdist_log_level_name': util.log_level_name_env_var_val(
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self.log),
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}
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if dry_run:
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self.env['__cdist_dry_run'] = '1'
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def _open_logger(self):
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self.log = logging.getLogger(self.target_host[0])
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# logger is not pickable, so remove it when we pickle
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def __getstate__(self):
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state = self.__dict__.copy()
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if 'log' in state:
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del state['log']
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return state
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# recreate logger when we unpickle
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def __setstate__(self, state):
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self.__dict__.update(state)
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self._open_logger()
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def env_initial_manifest(self, initial_manifest):
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env = os.environ.copy()
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env.update(self.env)
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env['__cdist_manifest'] = initial_manifest
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env['__manifest'] = self.local.manifest_path
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env['__explorer'] = self.local.global_explorer_out_path
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return env
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def run_initial_manifest(self, initial_manifest=None):
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if not initial_manifest:
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initial_manifest = self.local.initial_manifest
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user_supplied = False
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else:
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user_supplied = True
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if not os.path.isfile(initial_manifest):
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raise NoInitialManifestError(initial_manifest, user_supplied)
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message_prefix = "initialmanifest"
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self.log.verbose("Running initial manifest " + initial_manifest)
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which = "init"
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if self.local.save_output_streams:
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stderr_path = os.path.join(self.local.stderr_base_path, which)
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stdout_path = os.path.join(self.local.stdout_base_path, which)
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with open(stderr_path, 'ba+') as stderr, \
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open(stdout_path, 'ba+') as stdout:
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self.local.run_script(
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initial_manifest,
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env=self.env_initial_manifest(initial_manifest),
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message_prefix=message_prefix,
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stdout=stdout, stderr=stderr)
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else:
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self.local.run_script(
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initial_manifest,
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env=self.env_initial_manifest(initial_manifest),
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message_prefix=message_prefix)
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def env_type_manifest(self, cdist_object):
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type_manifest = os.path.join(self.local.type_path,
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cdist_object.cdist_type.manifest_path)
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env = os.environ.copy()
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env.update(self.env)
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env.update({
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'__cdist_manifest': type_manifest,
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'__manifest': self.local.manifest_path,
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'__object': cdist_object.absolute_path,
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'__object_id': cdist_object.object_id,
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'__object_name': cdist_object.name,
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'__type': cdist_object.cdist_type.absolute_path,
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})
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return env
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def run_type_manifest(self, cdist_object):
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type_manifest = os.path.join(self.local.type_path,
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cdist_object.cdist_type.manifest_path)
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message_prefix = cdist_object.name
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which = 'manifest'
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if os.path.isfile(type_manifest):
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self.log.verbose("Running type manifest %s for object %s",
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type_manifest, cdist_object.name)
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if self.local.save_output_streams:
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stderr_path = os.path.join(cdist_object.stderr_path, which)
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stdout_path = os.path.join(cdist_object.stdout_path, which)
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with open(stderr_path, 'ba+') as stderr, \
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open(stdout_path, 'ba+') as stdout:
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self.local.run_script(
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type_manifest,
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env=self.env_type_manifest(cdist_object),
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message_prefix=message_prefix,
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stdout=stdout, stderr=stderr)
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else:
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self.local.run_script(
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type_manifest,
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env=self.env_type_manifest(cdist_object),
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message_prefix=message_prefix)
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