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merge context back into config (it is in fact the same idea)

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Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>
This commit is contained in:
Nico Schottelius 2011-10-10 11:31:37 +02:00
parent 48a9309522
commit 7823d0c997
2 changed files with 139 additions and 190 deletions
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192
lib/cdist/config_install.py
View file

@ -24,10 +24,11 @@ import logging
import os
import stat
import sys
import tempfile
import time
import cdist.context
import cdist.core
import cdist.exec
import cdist.emulator
log = logging.getLogger(__name__)
@ -37,44 +38,115 @@ CODE_HEADER = "#!/bin/sh -e\n"
class ConfigInstall:
"""Cdist main class to hold arbitrary data"""
def __init__(self, target_host, initial_manifest=False,
base_path=False,
exec_path=sys.argv[0],
debug=False):
def __init__(self, target_host,
initial_manifest=False, base_path=False, debug=False):
self.target_host = target_host
os.environ['target_host'] = target_host
self.debug = debug
self.exec_path = exec_path
self.exec_path = sys.argv[0]
self.context = cdist.context.Context(self.target_host,
initial_manifest=initial_manifest,
base_path=base_path,
debug=debug)
# Base and Temp Base
if base_path:
self.base_path = base_path
else:
self.base_path = os.path.abspath(
os.path.join(os.path.dirname(__file__),
os.pardir,
os.pardir))
# Local input
self.cache_path = os.path.join(self.base_path, "cache",
self.target_host)
self.conf_path = os.path.join(self.base_path, "conf")
self.global_explorer_path = os.path.join(self.conf_path, "explorer")
self.manifest_path = os.path.join(self.conf_path, "manifest")
self.type_base_path = os.path.join(self.conf_path, "type")
self.lib_path = os.path.join(self.base_path, "lib")
if initial_manifest:
self.initial_manifest = initial_manifest
else:
self.initial_manifest = os.path.join(self.manifest_path, "init")
# Local output
if '__cdist_out_dir' in os.environ:
self.out_path = os.environ['__cdist_out_dir']
else:
self.out_path = os.path.join(tempfile.mkdtemp(), "out")
self.bin_path = os.path.join(self.out_path, "bin")
self.global_explorer_out_path = os.path.join(self.out_path, "explorer")
self.object_base_path = os.path.join(self.out_path, "object")
# Remote directory base
if '__cdist_remote_out_dir' in os.environ:
self.remote_base_path = os.environ['__cdist_remote_out_dir']
else:
self.remote_base_path = "/var/lib/cdist"
self.remote_conf_path = os.path.join(self.remote_base_path, "conf")
self.remote_object_path = os.path.join(self.remote_base_path, "object")
self.remote_type_path = os.path.join(self.remote_conf_path, "type")
self.remote_global_explorer_path = os.path.join(self.remote_conf_path, "explorer")
# Create directories
self.__init_local_paths()
self.__init_remote_paths()
def __init_remote_paths(self):
"""Initialise remote directory structure"""
self.remove_remote_path(self.remote_base_path)
self.remote_mkdir(self.remote_base_path)
self.remote_mkdir(self.remote_conf_path)
def __init_local_paths(self):
"""Initialise local directory structure"""
# Create base dir, if user supplied and not existing
if not os.path.isdir(self.base_path):
os.mkdir(self.base_path)
os.mkdir(self.out_path)
os.mkdir(self.global_explorer_out_path)
os.mkdir(self.bin_path)
def cleanup(self):
self.context.cleanup()
# Do not use in __del__:
# http://docs.python.org/reference/datamodel.html#customization
# "other globals referenced by the __del__() method may already have been deleted
# or in the process of being torn down (e.g. the import machinery shutting down)"
#
log.debug("Saving " + self.out_path + " to " + self.cache_path)
# Remove previous cache
if os.path.exists(self.cache_path):
shutil.rmtree(self.cache_path)
shutil.move(self.out_path, self.cache_path)
def logfilter(self):
"""Add hostname to logs"""
def run_initial_manifest(self):
"""Run the initial manifest"""
log.info("Running initial manifest %s", self.context.initial_manifest)
env = { "__manifest" : self.context.manifest_path }
self.run_manifest(self.context.initial_manifest, extra_env=env)
log.info("Running initial manifest %s", self.initial_manifest)
env = { "__manifest" : self.manifest_path }
self.run_manifest(self.initial_manifest, extra_env=env)
def run_type_manifest(self, cdist_object):
"""Run manifest for a specific object"""
cdist_type = cdist_object.type
manifest_path = os.path.join(self.context.type_base_path,
manifest_path = os.path.join(self.type_base_path,
cdist_type.manifest_path)
log.debug("%s: Running %s", cdist_object.name, manifest_path)
if os.path.exists(manifest_path):
env = { "__object" : os.path.join(self.context.object_base_path,
env = { "__object" : os.path.join(self.object_base_path,
cdist_object.path),
"__object_id": cdist_object.object_id,
"__object_fq": cdist_object.name,
"__type": os.path.join(self.context.type_base_path,
"__type": os.path.join(self.type_base_path,
cdist_type.path)
}
self.run_manifest(manifest_path, extra_env=env)
@ -83,11 +155,11 @@ class ConfigInstall:
"""Run a manifest"""
log.debug("Running manifest %s, env=%s", manifest_path, extra_env)
env = os.environ.copy()
env['PATH'] = self.context.bin_path + ":" + env['PATH']
env['PATH'] = self.bin_path + ":" + env['PATH']
# Information required in every manifest
env['__target_host'] = self.target_host
env['__global'] = self.context.out_path
env['__global'] = self.out_path
# Submit debug flag to manifest, can be used by emulator and types
if self.debug:
@ -97,7 +169,7 @@ class ConfigInstall:
env['__cdist_manifest'] = manifest_path
# Required to find types in emulator
env['__cdist_type_base_path'] = self.context.type_base_path
env['__cdist_type_base_path'] = self.type_base_path
# Other environment stuff
if extra_env:
@ -124,19 +196,19 @@ class ConfigInstall:
#
env = os.environ.copy()
env['__target_host'] = self.target_host
env['__global'] = self.context.out_path
env["__object"] = os.path.join(self.context.object_base_path, cdist_object.path)
env['__global'] = self.out_path
env["__object"] = os.path.join(self.object_base_path, cdist_object.path)
env["__object_id"] = cdist_object.object_id
env["__object_fq"] = cdist_object.name
env["__type"] = cdist_type.name
# gencode
for cmd in ["local", "remote"]:
bin = os.path.join(self.context.type_base_path,
bin = os.path.join(self.type_base_path,
getattr(cdist_type, "gencode_" + cmd + "_path"))
if os.path.isfile(bin):
outfile = os.path.join(self.context.object_base_path,
outfile = os.path.join(self.object_base_path,
getattr(cdist_object, "code_" + cmd + "_path"))
outfile_fd = open(outfile, "w")
@ -164,12 +236,12 @@ class ConfigInstall:
cdist.exec.run_or_fail([code_local])
# code remote
local_remote_code = os.path.join(self.context.object_base_path,
local_remote_code = os.path.join(self.object_base_path,
cdist_object.code_remote_path)
remote_remote_code = os.path.join(self.context.remote_object_path,
remote_remote_code = os.path.join(self.remote_object_path,
cdist_object.code_remote_path)
if os.path.isfile(local_remote_code):
self.context.transfer_path(local_remote_code, remote_remote_code)
self.transfer_path(local_remote_code, remote_remote_code)
cdist.exec.run_or_fail([remote_remote_code], remote_prefix=True)
cdist_object.ran = True
@ -181,12 +253,12 @@ class ConfigInstall:
self.transfer_type_explorers(cdist_type)
cmd = []
cmd.append("__explorer=" + self.context.remote_global_explorer_path)
cmd.append("__explorer=" + self.remote_global_explorer_path)
cmd.append("__type_explorer=" + os.path.join(
self.context.remote_type_path,
self.remote_type_path,
cdist_type.explorer_path))
cmd.append("__object=" + os.path.join(
self.context.remote_object_path,
self.remote_object_path,
cdist_object.path))
cmd.append("__object_id=" + cdist_object.object_id)
cmd.append("__object_fq=" + cdist_object.name)
@ -195,9 +267,9 @@ class ConfigInstall:
self.transfer_object_parameter(cdist_object)
for explorer in cdist_type.explorers:
remote_cmd = cmd + [os.path.join(self.context.remote_base_path,
remote_cmd = cmd + [os.path.join(self.remote_base_path,
cdist_type.explorer_path, explorer)]
output = os.path.join(self.context.object_base_path,
output = os.path.join(self.object_base_path,
cdist_object.explorer_path, explorer)
output_fd = open(output, mode='w')
log.debug("%s exploring %s using %s storing to %s",
@ -210,8 +282,8 @@ class ConfigInstall:
def link_emulator(self):
"""Link emulator to types"""
src = os.path.abspath(self.exec_path)
for cdist_type in cdist.core.Type.list_types(self.context.type_base_path):
dst = os.path.join(self.context.bin_path, cdist_type.name)
for cdist_type in cdist.core.Type.list_types(self.type_base_path):
dst = os.path.join(self.bin_path, cdist_type.name)
log.debug("Linking emulator: %s to %s", src, dst)
# FIXME: handle exception / make it more beautiful
@ -221,11 +293,11 @@ class ConfigInstall:
"""Run global explorers"""
log.info("Running global explorers")
src_path = self.context.global_explorer_path
dst_path = self.context.global_explorer_out_path
remote_dst_path = self.context.remote_global_explorer_path
src_path = self.global_explorer_path
dst_path = self.global_explorer_out_path
remote_dst_path = self.remote_global_explorer_path
self.context.transfer_path(src_path, remote_dst_path)
self.transfer_path(src_path, remote_dst_path)
for explorer in os.listdir(src_path):
output_fd = open(os.path.join(dst_path, explorer), mode='w')
@ -240,8 +312,8 @@ class ConfigInstall:
def stage_run(self):
"""The final (and real) step of deployment"""
log.info("Generating and executing code")
for cdist_object in cdist.core.Object.list_objects(self.context.object_base_path,
self.context.type_base_path):
for cdist_object in cdist.core.Object.list_objects(self.object_base_path,
self.type_base_path):
log.debug("Run object: %s", cdist_object)
self.object_run(cdist_object)
@ -271,8 +343,8 @@ class ConfigInstall:
new_objects_created = True
while new_objects_created:
new_objects_created = False
for cdist_object in cdist.core.Object.list_objects(self.context.object_base_path,
self.context.type_base_path):
for cdist_object in cdist.core.Object.list_objects(self.object_base_path,
self.type_base_path):
if cdist_object.prepared:
log.debug("Skipping rerun of object %s", cdist_object)
continue
@ -285,19 +357,19 @@ class ConfigInstall:
def transfer_object_parameter(self, cdist_object):
"""Transfer the object parameter to the remote destination"""
src = os.path.join(self.context.object_base_path,
src = os.path.join(self.object_base_path,
cdist_object.parameter_path)
dst = os.path.join(self.context.remote_object_path,
dst = os.path.join(self.remote_object_path,
cdist_object.parameter_path)
# Synchronise parameter dir afterwards
self.context.remote_mkdir(dst)
self.context.transfer_path(src, dst)
self.remote_mkdir(dst)
self.transfer_path(src, dst)
def transfer_global_explorers(self):
"""Transfer the global explorers"""
self.remote_mkdir(self.context.remote_global_explorer_path)
self.transfer_path(self.context.global_explorer_path,
self.remote_mkdir(self.remote_global_explorer_path)
self.transfer_path(self.global_explorer_path,
self.remote_global_explorer_path)
def transfer_type_explorers(self, cdist_type):
@ -313,13 +385,27 @@ class ConfigInstall:
if len(explorers) > 0:
rel_path = cdist_type.explorer_path
src = os.path.join(self.context.type_base_path, rel_path)
dst = os.path.join(self.context.remote_type_path, rel_path)
src = os.path.join(self.type_base_path, rel_path)
dst = os.path.join(self.remote_type_path, rel_path)
# Ensure full path until type exists:
# /var/lib/cdist/conf/type/__directory/explorer
# /var/lib/cdist/conf/type/__directory may not exist,
# but remote_mkdir uses -p to fix this
self.context.remote_mkdir(dst)
self.context.transfer_path(src, dst)
self.remote_mkdir(dst)
self.transfer_path(src, dst)
def remote_mkdir(self, directory):
"""Create directory on remote side"""
cdist.exec.run_or_fail(["mkdir", "-p", directory], remote_prefix=True)
def remove_remote_path(self, destination):
"""Ensure path on remote side vanished"""
cdist.exec.run_or_fail(["rm", "-rf", destination], remote_prefix=True)
def transfer_path(self, source, destination):
"""Transfer directory and previously delete the remote destination"""
self.remove_remote_path(destination)
cdist.exec.run_or_fail(os.environ['__remote_copy'].split() +
["-r", source, self.target_host + ":" + destination])

137
lib/cdist/context.py
View file

@ -1,137 +0,0 @@
# -*- coding: utf-8 -*-
#
# 2010-2011 Nico Schottelius (nico-cdist at schottelius.org)
#
# This file is part of cdist.
#
# cdist 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.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
import logging
import os
import shutil
import sys
import tempfile
log = logging.getLogger(__name__)
import cdist.exec
class Context:
"""Storing context information"""
def __init__(self,
target_host,
initial_manifest=False,
base_path=False,
out_path=False,
remote_base_path=False,
debug=False):
self.target_host = target_host
# Base and Temp Base
if base_path:
self.base_path = base_path
else:
self.base_path = os.path.abspath(
os.path.join(os.path.dirname(__file__),
os.pardir,
os.pardir))
# Local input directories
self.cache_path = os.path.join(self.base_path, "cache", target_host)
self.conf_path = os.path.join(self.base_path, "conf")
self.global_explorer_path = os.path.join(self.conf_path, "explorer")
self.manifest_path = os.path.join(self.conf_path, "manifest")
self.type_base_path = os.path.join(self.conf_path, "type")
self.lib_path = os.path.join(self.base_path, "lib")
if initial_manifest:
self.initial_manifest = initial_manifest
else:
self.initial_manifest = os.path.join(self.manifest_path, "init")
# Local output directories
if out_path:
self.out_path = out_path
else:
self.out_path = os.path.join(tempfile.mkdtemp(), "out")
self.bin_path = os.path.join(self.out_path, "bin")
self.global_explorer_out_path = os.path.join(self.out_path, "explorer")
self.object_base_path = os.path.join(self.out_path, "object")
# Remote directories
if remote_base_path:
self.remote_base_path = remote_base_path
else:
self.remote_base_path = "/var/lib/cdist"
self.remote_conf_path = os.path.join(self.remote_base_path, "conf")
self.remote_object_path = os.path.join(self.remote_base_path, "object")
self.remote_type_path = os.path.join(self.remote_conf_path, "type")
self.remote_global_explorer_path = os.path.join(self.remote_conf_path, "explorer")
# Create directories
self.__init_out_paths()
self.__init_remote_paths()
def cleanup(self):
# Do not use in __del__:
# http://docs.python.org/reference/datamodel.html#customization
# "other globals referenced by the __del__() method may already have been deleted
# or in the process of being torn down (e.g. the import machinery shutting down)"
#
log.debug("Saving " + self.out_path + " to " + self.cache_path)
# Remove previous cache
if os.path.exists(self.cache_path):
shutil.rmtree(self.cache_path)
shutil.move(self.out_path, self.cache_path)
def __init_out_paths(self):
"""Initialise output directory structure"""
# Create base dir, if user supplied and not existing
if not os.path.isdir(self.base_path):
os.mkdir(self.base_path)
os.mkdir(self.out_path)
os.mkdir(self.global_explorer_out_path)
os.mkdir(self.bin_path)
def __init_remote_paths(self):
"""Initialise remote directory structure"""
self.remove_remote_path(self.remote_base_path)
self.remote_mkdir(self.remote_base_path)
self.remote_mkdir(self.remote_conf_path)
def remote_mkdir(self, directory):
"""Create directory on remote side"""
cdist.exec.run_or_fail(["mkdir", "-p", directory], remote_prefix=True)
def remove_remote_path(self, destination):
cdist.exec.run_or_fail(["rm", "-rf", destination], remote_prefix=True)
def transfer_path(self, source, destination):
"""Transfer directory and previously delete the remote destination"""
self.remove_remote_path(destination)
cdist.exec.run_or_fail(os.environ['__remote_copy'].split() +
["-r", source, self.target_host + ":" + destination])