#!/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 . # # import logging import os import stat import shutil import sys import tempfile import time import cdist.core import cdist.context import cdist.exec import cdist.explorer #import cdist.manifest class ConfigInstall(object): """Cdist main class to hold arbitrary data""" def __init__(self, context): self.context = context self.log = logging.getLogger(self.context.target_host) self.exec_wrapper = cdist.exec.Wrapper( target_host = self.context.target_host, remote_exec=self.context.remote_exec, remote_copy=self.context.remote_copy) # Create directories other may depend on self.__init_local_paths() self.__init_remote_paths() self.explorer = cdist.explorer.Explorer(self.context) #self.manifest = cdist.manifest.Mamifest() self.log = logging.getLogger(self.context.target_host) # Setup env to be used by others - FIXME self.__init_env() def __init_remote_paths(self): """Initialise remote directory structure""" self.exec_wrapper.remove_remote_path(self.context.remote_base_path) self.exec_wrapper.remote_mkdir(self.context.remote_base_path) self.exec_wrapper.remote_mkdir(self.context.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.context.base_path): os.mkdir(self.context.base_path) # FIXME: raise more beautiful exception / Steven: handle exception os.mkdir(self.context.out_path) os.mkdir(self.context.bin_path) # FIXME: remove this function, only expose ENV # explicitly! def __init_env(self): """Environment usable for other stuff""" os.environ['__target_host'] = self.context.target_host if self.context.debug: os.environ['__debug'] = "yes" def cleanup(self): self.log.debug("Saving " + self.context.out_path + " to " + self.context.cache_path) if os.path.exists(self.context.cache_path): shutil.rmtree(self.context.cache_path) shutil.move(self.context.out_path, self.context.cache_path) def object_prepare(self, cdist_object): """Prepare object: Run type explorer + manifest""" self.log.debug("Preparing object: " + cdist_object.name) cdist_object.explorers = self.explorer.run_type_explorer(cdist_object) self.manifest.run_type_manifest(cdist_object) cdist_object.prepared = True def object_run(self, cdist_object): """Run gencode and code for an object""" self.log.debug("Running object %s", cdist_object) # Catch requirements, which re-call us if cdist_object.ran: return cdist_type = cdist_object.type for requirement in cdist_object.requirements: self.log.debug("Object %s requires %s", cdist_object, requirement) self.object_run(requirement) # # Setup env Variable: # env = os.environ.copy() env['__target_host'] = self.context.target_host env['__global'] = self.context.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, getattr(cdist_type, "gencode_" + cmd + "_path")) if os.path.isfile(bin): outfile = os.path.join(self.object_base_path, getattr(cdist_object, "code_" + cmd + "_path")) outfile_fd = open(outfile, "w") # Need to flush to ensure our write is done before stdout write # FIXME: code header still needed? 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) cdist_object.changed=True # code local code_local = cdist_object.code_local_path if os.path.isfile(code_local): cdist.exec.run_or_fail([code_local]) # code remote local_remote_code = os.path.join(self.object_base_path, cdist_object.code_remote_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) cdist.exec.run_or_fail([remote_remote_code], remote_prefix=True) cdist_object.ran = True def link_emulator(self): """Link emulator to types""" src = os.path.abspath(self.context.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) self.log.debug("Linking emulator: %s to %s", src, dst) # FIXME: handle exception / make it more beautiful / Steven: raise except :-) os.symlink(src, dst) def deploy_to(self): """Mimic the old deploy to: Deploy to one host""" self.log.info("Deploying to " + self.context.target_host) self.stage_prepare() self.stage_run() def deploy_and_cleanup(self): """Do what is most often done: deploy & cleanup""" start_time = time.time() self.deploy_to() self.cleanup() self.log.info("Finished run of %s in %s seconds", self.context.target_host, time.time() - start_time) def stage_prepare(self): """Do everything for a deploy, minus the actual code stage""" self.link_emulator() self.explorer.run_global_explorers() self.run_initial_manifest() self.log.info("Running object manifests and type explorers") # Continue process until no new objects are created anymore new_objects_created = True while new_objects_created: new_objects_created = False for cdist_object in cdist.core.Object.list_objects(self.object_base_path, self.context.type_base_path): if cdist_object.prepared: self.log.debug("Skipping rerun of object %s", cdist_object) continue else: self.object_prepare(cdist_object) new_objects_created = True def stage_run(self): """The final (and real) step of deployment""" self.log.info("Generating and executing code") for cdist_object in cdist.core.Object.list_objects(self.object_base_path, self.context.type_base_path): self.log.debug("Run object: %s", cdist_object) self.object_run(cdist_object)