316 lines
12 KiB
Python
316 lines
12 KiB
Python
#!/usr/bin/env python3
|
|
# -*- 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 datetime
|
|
import logging
|
|
import os
|
|
import stat
|
|
import sys
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
import cdist.emulator
|
|
import cdist.path
|
|
|
|
CODE_HEADER = "#!/bin/sh -e\n"
|
|
|
|
class Config:
|
|
"""Cdist main class to hold arbitrary data"""
|
|
|
|
def __init__(self, target_host,
|
|
initial_manifest=False,
|
|
remote_user="root",
|
|
home=None,
|
|
exec_path=sys.argv[0],
|
|
debug=False):
|
|
|
|
self.target_host = target_host
|
|
self.debug = debug
|
|
self.remote_user = remote_user
|
|
self.exec_path = exec_path
|
|
|
|
# FIXME: broken - construct elsewhere!
|
|
self.remote_prefix = ["ssh", self.remote_user + "@" + self.target_host]
|
|
|
|
self.path = cdist.path.Path(self.target_host,
|
|
initial_manifest=initial_manifest,
|
|
remote_user=self.remote_user,
|
|
remote_prefix=self.remote_prefix,
|
|
base_dir=home,
|
|
debug=debug)
|
|
|
|
self.objects_prepared = []
|
|
|
|
def cleanup(self):
|
|
self.path.cleanup()
|
|
|
|
def run_global_explores(self):
|
|
"""Run global explorers"""
|
|
log.info("Running global explorers")
|
|
explorers = self.path.list_global_explorers()
|
|
if(len(explorers) == 0):
|
|
raise CdistError("No explorers found in", self.path.global_explorer_dir)
|
|
|
|
self.path.transfer_global_explorers()
|
|
for explorer in explorers:
|
|
output = self.path.global_explorer_output_path(explorer)
|
|
output_fd = open(output, mode='w')
|
|
cmd = []
|
|
cmd.append("__explorer=" + cdist.path.REMOTE_GLOBAL_EXPLORER_DIR)
|
|
cmd.append(self.path.remote_global_explorer_path(explorer))
|
|
|
|
cdist.exec.run_or_fail(cmd, stdout=output_fd, remote_prefix=self.remote_prefix)
|
|
output_fd.close()
|
|
|
|
def run_type_explorer(self, cdist_object):
|
|
"""Run type specific explorers for objects"""
|
|
|
|
type = self.path.get_type_from_object(cdist_object)
|
|
self.path.transfer_type_explorers(type)
|
|
|
|
cmd = []
|
|
cmd.append("__explorer=" + cdist.path.REMOTE_GLOBAL_EXPLORER_DIR)
|
|
cmd.append("__type_explorer=" + self.path.remote_type_explorer_dir(type))
|
|
cmd.append("__object=" + self.path.remote_object_dir(cdist_object))
|
|
cmd.append("__object_id=" + self.path.get_object_id_from_object(cdist_object))
|
|
cmd.append("__object_fq=" + cdist_object)
|
|
|
|
# Need to transfer at least the parameters for objects to be useful
|
|
self.path.transfer_object_parameter(cdist_object)
|
|
|
|
explorers = self.path.list_type_explorers(type)
|
|
for explorer in explorers:
|
|
remote_cmd = cmd + [os.path.join(self.path.remote_type_explorer_dir(type), explorer)]
|
|
output = os.path.join(self.path.type_explorer_output_dir(cdist_object), explorer)
|
|
output_fd = open(output, mode='w')
|
|
log.debug("%s exploring %s using %s storing to %s",
|
|
cdist_object, explorer, remote_cmd, output)
|
|
|
|
cdist.exec.run_or_fail(remote_cmd, stdout=output_fd, remote_prefix=self.remote_prefix)
|
|
output_fd.close()
|
|
|
|
def link_emulator(self):
|
|
"""Link emulator to types"""
|
|
cdist.emulator.link(self.exec_path,
|
|
self.path.bin_dir, self.path.list_types())
|
|
|
|
def init_deploy(self):
|
|
"""Ensure the base directories are cleaned up"""
|
|
log.debug("Creating clean directory structure")
|
|
|
|
self.path.remove_remote_dir(cdist.path.REMOTE_BASE_DIR)
|
|
self.path.remote_mkdir(cdist.path.REMOTE_BASE_DIR)
|
|
self.link_emulator()
|
|
|
|
def run_initial_manifest(self):
|
|
"""Run the initial manifest"""
|
|
log.info("Running initial manifest %s", self.path.initial_manifest)
|
|
env = { "__manifest" : self.path.manifest_dir }
|
|
self.run_manifest(self.path.initial_manifest, extra_env=env)
|
|
|
|
def run_type_manifest(self, cdist_object):
|
|
"""Run manifest for a specific object"""
|
|
type = self.path.get_type_from_object(cdist_object)
|
|
manifest = self.path.type_dir(type, "manifest")
|
|
|
|
log.debug("%s: Running %s", cdist_object, manifest)
|
|
if os.path.exists(manifest):
|
|
env = { "__object" : self.path.object_dir(cdist_object),
|
|
"__object_id": self.path.get_object_id_from_object(cdist_object),
|
|
"__object_fq": cdist_object,
|
|
"__type": self.path.type_dir(type)
|
|
}
|
|
self.run_manifest(manifest, extra_env=env)
|
|
|
|
def run_manifest(self, manifest, extra_env=None):
|
|
"""Run a manifest"""
|
|
log.debug("Running manifest %s, env=%s", manifest, extra_env)
|
|
env = os.environ.copy()
|
|
env['PATH'] = self.path.bin_dir + ":" + env['PATH']
|
|
|
|
# Information required in every manifest
|
|
env['__target_host'] = self.target_host
|
|
env['__global'] = self.path.out_dir
|
|
|
|
# Submit debug flag to manifest, can be used by emulator and types
|
|
if self.debug:
|
|
env['__debug'] = "yes"
|
|
|
|
# Required for recording source
|
|
env['__cdist_manifest'] = manifest
|
|
|
|
# Required to find types
|
|
env['__cdist_type_base_dir'] = self.path.type_base_dir
|
|
|
|
# Other environment stuff
|
|
if extra_env:
|
|
env.update(extra_env)
|
|
|
|
cdist.exec.shell_run_or_debug_fail(manifest, [manifest], env=env)
|
|
|
|
def object_run(self, cdist_object, mode):
|
|
"""Run gencode or code for an object"""
|
|
log.debug("Running %s from %s", mode, cdist_object)
|
|
file=os.path.join(self.path.object_dir(cdist_object), "require")
|
|
requirements = cdist.path.file_to_list(file)
|
|
type = self.path.get_type_from_object(cdist_object)
|
|
|
|
for requirement in requirements:
|
|
log.debug("Object %s requires %s", cdist_object, requirement)
|
|
self.object_run(requirement, mode=mode)
|
|
|
|
#
|
|
# Setup env Variable:
|
|
#
|
|
env = os.environ.copy()
|
|
env['__target_host'] = self.target_host
|
|
env['__global'] = self.path.out_dir
|
|
env["__object"] = self.path.object_dir(cdist_object)
|
|
env["__object_id"] = self.path.get_object_id_from_object(cdist_object)
|
|
env["__object_fq"] = cdist_object
|
|
env["__type"] = self.path.type_dir(type)
|
|
|
|
if mode == "gencode":
|
|
paths = [
|
|
self.path.type_dir(type, "gencode-local"),
|
|
self.path.type_dir(type, "gencode-remote")
|
|
]
|
|
for bin in paths:
|
|
if os.path.isfile(bin):
|
|
# omit "gen" from gencode and use it for output base
|
|
outfile=os.path.join(self.path.object_dir(cdist_object),
|
|
os.path.basename(bin)[3:])
|
|
|
|
outfile_fd = open(outfile, "w")
|
|
|
|
# Need to flush to ensure our write is done before stdout write
|
|
outfile_fd.write(CODE_HEADER)
|
|
outfile_fd.flush()
|
|
|
|
cdist.exec.shell_run_or_debug_fail(bin, [bin], env=env, stdout=outfile_fd)
|
|
outfile_fd.close()
|
|
|
|
status = os.stat(outfile)
|
|
|
|
# Remove output if empty, else make it executable
|
|
if status.st_size == len(CODE_HEADER):
|
|
os.unlink(outfile)
|
|
else:
|
|
# Add header and make executable - identically to 0o700
|
|
os.chmod(outfile, stat.S_IXUSR | stat.S_IRUSR | stat.S_IWUSR)
|
|
|
|
# Mark object as changed
|
|
open(os.path.join(self.path.object_dir(cdist_object), "changed"), "w").close()
|
|
|
|
|
|
if mode == "code":
|
|
local_dir = self.path.object_dir(cdist_object)
|
|
remote_dir = self.path.remote_object_dir(cdist_object)
|
|
|
|
bin = os.path.join(local_dir, "code-local")
|
|
if os.path.isfile(bin):
|
|
cdist.exec.run_or_fail([bin])
|
|
|
|
|
|
local_remote_code = os.path.join(local_dir, "code-remote")
|
|
remote_remote_code = os.path.join(remote_dir, "code-remote")
|
|
if os.path.isfile(local_remote_code):
|
|
self.path.transfer_file(local_remote_code, remote_remote_code)
|
|
# FIXME: remote_prefix
|
|
cdist.exec.run_or_fail([remote_remote_code], remote_prefix=self.remote_prefix)
|
|
|
|
def stage_prepare(self):
|
|
"""Do everything for a deploy, minus the actual code stage"""
|
|
self.init_deploy()
|
|
self.run_global_explores()
|
|
self.run_initial_manifest()
|
|
|
|
log.info("Running object manifests and type explorers")
|
|
|
|
old_objects = []
|
|
objects = self.path.list_objects()
|
|
|
|
# Continue process until no new objects are created anymore
|
|
while old_objects != objects:
|
|
old_objects = list(objects)
|
|
for cdist_object in objects:
|
|
if cdist_object in self.objects_prepared:
|
|
log.debug("Skipping rerun of object %s", cdist_object)
|
|
continue
|
|
else:
|
|
self.run_type_explorer(cdist_object)
|
|
self.run_type_manifest(cdist_object)
|
|
self.objects_prepared.append(cdist_object)
|
|
|
|
objects = self.path.list_objects()
|
|
|
|
def stage_run(self):
|
|
"""The final (and real) step of deployment"""
|
|
log.info("Generating and executing code")
|
|
# Now do the final steps over the existing objects
|
|
for cdist_object in self.path.list_objects():
|
|
log.debug("Run object: %s", cdist_object)
|
|
self.object_run(cdist_object, mode="gencode")
|
|
self.object_run(cdist_object, mode="code")
|
|
|
|
def deploy_to(self):
|
|
"""Mimic the old deploy to: Deploy to one host"""
|
|
log.info("Deploying to " + self.target_host)
|
|
time_start = datetime.datetime.now()
|
|
|
|
self.stage_prepare()
|
|
self.stage_run()
|
|
|
|
time_end = datetime.datetime.now()
|
|
duration = time_end - time_start
|
|
log.info("Finished run of %s in %s seconds",
|
|
self.target_host,
|
|
duration.total_seconds())
|
|
|
|
def deploy_and_cleanup(self):
|
|
"""Do what is most often done: deploy & cleanup"""
|
|
self.deploy_to()
|
|
self.cleanup()
|
|
|
|
def config(args):
|
|
"""Configure remote system"""
|
|
process = {}
|
|
|
|
time_start = datetime.datetime.now()
|
|
|
|
for host in args.host:
|
|
c = Config(host, initial_manifest=args.manifest, home=args.cdist_home, debug=args.debug)
|
|
if args.parallel:
|
|
log.debug("Creating child process for %s", host)
|
|
process[host] = multiprocessing.Process(target=c.deploy_and_cleanup)
|
|
process[host].start()
|
|
else:
|
|
c.deploy_and_cleanup()
|
|
|
|
if args.parallel:
|
|
for p in process.keys():
|
|
log.debug("Joining process %s", p)
|
|
process[p].join()
|
|
|
|
time_end = datetime.datetime.now()
|
|
log.info("Total processing time for %s host(s): %s", len(args.host),
|
|
(time_end - time_start).total_seconds())
|