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cdist-mirror
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remove non path stuff from path

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Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>
remotes/origin/2.0
Nico Schottelius 14 years ago
parent 02b9b71ffe
commit 7bc4f74d50
1 changed files with 4 additions and 427 deletions
  1. 431
      module/cdist/path.py

431
module/cdist/path.py vendored
Unescape View File

@ -23,6 +23,9 @@ def file_to_list(filename):
return lines
# FIXME: self.run_or_fail needs to be elsewhere!
# Exec?
class Path:
"""Class that handles path related configurations"""
@ -159,6 +162,7 @@ class Path:
return object_paths
# FIXME
def get_type_from_object(self, cdist_object):
"""Returns the first part (i.e. type) of an object"""
return cdist_object.split(os.sep)[0]
@ -249,430 +253,3 @@ class Path:
destination = os.path.join(self.bin_dir, type)
log.debug("Linking %s to %s", source, destination)
os.symlink(source, destination)
def run_global_explores(self):
"""Run global explorers"""
explorers = self.list_global_explorers()
if(len(explorers) == 0):
exit_error("No explorers found in", self.global_explorer_dir)
self.transfer_global_explorers()
for explorer in explorers:
output = self.global_explorer_output_path(explorer)
output_fd = open(output, mode='w')
cmd = []
cmd.append("__explorer=" + REMOTE_GLOBAL_EXPLORER_DIR)
cmd.append(self.remote_global_explorer_path(explorer))
self.run_or_fail(cmd, stdout=output_fd, remote=True)
output_fd.close()
def run_type_explorer(self, cdist_object):
"""Run type specific explorers for objects"""
# Based on bin/cdist-object-explorer-run
# Transfering explorers for this type
type = self.get_type_from_object(cdist_object)
self.transfer_type_explorers(type)
cmd = []
cmd.append("__explorer=" + REMOTE_GLOBAL_EXPLORER_DIR)
cmd.append("__type_explorer=" + self.remote_type_explorer_dir(type))
cmd.append("__object=" + self.remote_object_dir(cdist_object))
cmd.append("__object_id=" + self.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.transfer_object_parameter(cdist_object)
explorers = self.list_type_explorers(type)
for explorer in explorers:
remote_cmd = cmd + [os.path.join(self.remote_type_explorer_dir(type), explorer)]
output = os.path.join(self.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)
self.run_or_fail(remote_cmd, stdout=output_fd, remote=True)
output_fd.close()
def init_deploy(self):
"""Ensure the base directories are cleaned up"""
log.debug("Creating clean directory structure")
self.remove_remote_dir(REMOTE_BASE_DIR)
self.remote_mkdir(REMOTE_BASE_DIR)
def run_initial_manifest(self):
"""Run the initial manifest"""
env = { "__manifest" : self.manifest_dir }
self.run_manifest(self.initial_manifest, extra_env=env)
def run_type_manifest(self, cdist_object):
"""Run manifest for a specific object"""
type = self.get_type_from_object(cdist_object)
manifest = self.type_dir(type, "manifest")
log.debug("%s: Running %s", cdist_object, manifest)
if os.path.exists(manifest):
env = { "__object" : self.object_dir(cdist_object),
"__object_id": self.get_object_id_from_object(cdist_object),
"__object_fq": cdist_object,
"__type": self.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.bin_dir + ":" + env['PATH']
# Information required in every manifest
env['__target_host'] = self.target_host
env['__global'] = self.out_dir
# Legacy stuff to make cdist-type-emulator work
env['__cdist_core_dir'] = os.path.join(self.base_dir, "core")
env['__cdist_local_base_dir'] = self.temp_dir
# Submit information to new type emulator
env['__cdist_manifest'] = manifest
env['__cdist_type_base_dir'] = self.type_base_dir
# Other environment stuff
if extra_env:
env.update(extra_env)
self.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.object_dir(cdist_object), "require")
requirements = file_to_list(file)
type = self.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.out_dir
env["__object"] = self.object_dir(cdist_object)
env["__object_id"] = self.get_object_id_from_object(cdist_object)
env["__object_fq"] = cdist_object
env["__type"] = self.type_dir(type)
if mode == "gencode":
paths = [
self.type_dir(type, "gencode-local"),
self.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.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()
self.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.object_dir(cdist_object), "changed"), "w").close()
if mode == "code":
local_dir = self.object_dir(cdist_object)
remote_dir = self.remote_object_dir(cdist_object)
bin = os.path.join(local_dir, "code-local")
if os.path.isfile(bin):
self.run_or_fail([bin], remote=False)
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.transfer_file(local_remote_code, remote_remote_code)
self.run_or_fail([remote_remote_code], remote=True)
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()
old_objects = []
objects = self.list_objects()
# Continue process until no new objects are created anymore
while old_objects != objects:
log.debug("Prepare stage")
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.list_objects()
def stage_run(self):
"""The final (and real) step of deployment"""
log.debug("Actual run objects")
# Now do the final steps over the existing objects
for cdist_object in self.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 banner(args):
"""Guess what :-)"""
print(BANNER)
sys.exit(0)
def config(args):
"""Configure remote system"""
process = {}
time_start = datetime.datetime.now()
for host in args.host:
c = Cdist(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 %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())
def install(args):
"""Install remote system"""
process = {}
def emulator():
"""Emulate type commands (i.e. __file and co)"""
type = os.path.basename(sys.argv[0])
type_dir = os.path.join(os.environ['__cdist_type_base_dir'], type)
param_dir = os.path.join(type_dir, "parameter")
global_dir = os.environ['__global']
object_source = os.environ['__cdist_manifest']
parser = argparse.ArgumentParser(add_help=False)
# Setup optional parameters
for parameter in file_to_list(os.path.join(param_dir, "optional")):
argument = "--" + parameter
parser.add_argument(argument, action='store', required=False)
# Setup required parameters
for parameter in file_to_list(os.path.join(param_dir, "required")):
argument = "--" + parameter
parser.add_argument(argument, action='store', required=True)
# Setup positional parameter, if not singleton
if not os.path.isfile(os.path.join(type_dir, "singleton")):
parser.add_argument("object_id", nargs=1)
# And finally verify parameter
args = parser.parse_args(sys.argv[1:])
# Setup object_id
if os.path.isfile(os.path.join(type_dir, "singleton")):
object_id = "singleton"
else:
object_id = args.object_id[0]
del args.object_id
# FIXME: / hardcoded - better portable solution available?
if object_id[0] == '/':
object_id = object_id[1:]
# FIXME: verify object id
log.debug(args)
object_dir = os.path.join(global_dir, "object", type,
object_id, DOT_CDIST)
param_out_dir = os.path.join(object_dir, "parameter")
object_source_file = os.path.join(object_dir, "source")
if os.path.exists(param_out_dir):
object_exists = True
old_object_source_fd = open(object_source_file, "r")
old_object_source = old_object_source_fd.readlines()
old_object_source_fd.close()
else:
object_exists = False
try:
os.makedirs(param_out_dir, exist_ok=True)
except OSError as error:
exit_error(param_out_dir + ": " + error.args[1])
# Record parameter
params = vars(args)
for param in params:
value = getattr(args, param)
if value:
file = os.path.join(param_out_dir, param)
log.debug(file + "<-" + param + " = " + value)
# Already exists, verify all parameter are the same
if object_exists:
if not os.path.isfile(file):
print("New parameter + " + param + "specified, aborting")
print("Source = " + old_object_source + "new =" + object_source)
sys.exit(1)
else:
param_fd = open(file, "r")
param_old = param_fd.readlines()
param_fd.close()
if(param_old != param):
print("Parameter " + param + " differs: " + " ".join(param_old) + " vs. " + param)
print("Sources: " + " ".join(old_object_source) + " and " + object_source)
sys.exit(1)
else:
param_fd = open(file, "w")
param_fd.writelines(value)
param_fd.close()
# Record requirements
if "__require" in os.environ:
requirements = os.environ['__require']
print(object_id + ":Writing requirements: " + requirements)
require_fd = open(os.path.join(object_dir, "require"), "a")
require_fd.writelines(requirements.split(" "))
require_fd.close()
# Record / Append source
source_fd = open(os.path.join(object_dir, "source"), "a")
source_fd.writelines(object_source)
source_fd.close()
# sys.exit(1)
print("Finished " + type + "/" + object_id + repr(params))
def commandline():
"""Parse command line"""
# Construct parser others can reuse
parser = {}
# Options _all_ parsers have in common
parser['most'] = argparse.ArgumentParser(add_help=False)
parser['most'].add_argument('-d', '--debug',
help='Set log level to debug', action='store_true')
# Main subcommand parser
parser['main'] = argparse.ArgumentParser(description='cdist ' + VERSION)
parser['main'].add_argument('-V', '--version',
help='Show version', action='version',
version='%(prog)s ' + VERSION)
parser['sub'] = parser['main'].add_subparsers(title="Commands")
# Banner
parser['banner'] = parser['sub'].add_parser('banner',
add_help=False)
parser['banner'].set_defaults(func=banner)
# Config and install (common stuff)
parser['configinstall'] = argparse.ArgumentParser(add_help=False)
parser['configinstall'].add_argument('host', nargs='+',
help='one or more hosts to operate on')
parser['configinstall'].add_argument('-c', '--cdist-home',
help='Change cdist home (default: .. from bin directory)',
action='store')
parser['configinstall'].add_argument('-i', '--initial-manifest',
help='Path to a cdist manifest',
dest='manifest', required=False)
parser['configinstall'].add_argument('-p', '--parallel',
help='Operate on multiple hosts in parallel',
action='store_true', dest='parallel')
parser['configinstall'].add_argument('-s', '--sequential',
help='Operate on multiple hosts sequentially (default)',
action='store_false', dest='parallel')
# Config
parser['config'] = parser['sub'].add_parser('config',
parents=[parser['most'], parser['configinstall']])
parser['config'].set_defaults(func=config)
# Install
parser['install'] = parser['sub'].add_parser('install',
parents=[parser['most'], parser['configinstall']])
parser['install'].set_defaults(func=install)
for p in parser:
parser[p].epilog = "Get cdist at http://www.nico.schottelius.org/software/cdist/"
args = parser['main'].parse_args(sys.argv[1:])
# Most subcommands have --debug, so handle it here
if 'debug' in args:
if args.debug:
logging.root.setLevel(logging.DEBUG)
log.debug(args)
args.func(args)
if __name__ == "__main__":
try:
if re.match(TYPE_PREFIX, os.path.basename(sys.argv[0])):
emulator()
else:
commandline()
except KeyboardInterrupt:
sys.exit(0)

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