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Merge pull request #2349 from dnephin/validate_all_files

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Validate all files before merging them
This commit is contained in:
Daniel Nephin 2015-11-11 15:27:47 -05:00
commit 76f3c9c739
9 changed files with 113 additions and 92 deletions
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2
compose/cli/main.py
View file

@ -13,12 +13,12 @@ from requests.exceptions import ReadTimeout
from .. import __version__
from .. import legacy
from ..config import ConfigurationError
from ..config import parse_environment
from ..const import DEFAULT_TIMEOUT
from ..const import HTTP_TIMEOUT
from ..const import IS_WINDOWS_PLATFORM
from ..progress_stream import StreamOutputError
from ..project import ConfigurationError
from ..project import NoSuchService
from ..service import BuildError
from ..service import ConvergenceStrategy

1
compose/config/__init__.py
View file

@ -1,5 +1,4 @@
# flake8: noqa
from .config import ConfigDetails
from .config import ConfigurationError
from .config import DOCKER_CONFIG_KEYS
from .config import find

99
compose/config/config.py
View file

@ -13,7 +13,6 @@ from .errors import ConfigurationError
from .interpolation import interpolate_environment_variables
from .validation import validate_against_fields_schema
from .validation import validate_against_service_schema
from .validation import validate_extended_service_exists
from .validation import validate_extends_file_path
from .validation import validate_top_level_object
@ -99,6 +98,10 @@ class ConfigFile(namedtuple('_ConfigFile', 'filename config')):
:type config: :class:`dict`
"""
@classmethod
def from_filename(cls, filename):
return cls(filename, load_yaml(filename))
def find(base_dir, filenames):
if filenames == ['-']:
@ -114,7 +117,7 @@ def find(base_dir, filenames):
log.debug("Using configuration files: {}".format(",".join(filenames)))
return ConfigDetails(
os.path.dirname(filenames[0]),
[ConfigFile(f, load_yaml(f)) for f in filenames])
[ConfigFile.from_filename(f) for f in filenames])
def get_default_config_files(base_dir):
@ -174,21 +177,19 @@ def load(config_details):
"""
def build_service(filename, service_name, service_dict):
loader = ServiceLoader(
resolver = ServiceExtendsResolver(
config_details.working_dir,
filename,
service_name,
service_dict)
service_dict = loader.make_service_dict()
service_dict = process_service(config_details.working_dir, resolver.run())
validate_paths(service_dict)
return service_dict
def load_file(filename, config):
processed_config = interpolate_environment_variables(config)
validate_against_fields_schema(processed_config)
def build_services(filename, config):
return [
build_service(filename, name, service_config)
for name, service_config in processed_config.items()
for name, service_config in config.items()
]
def merge_services(base, override):
@ -200,19 +201,30 @@ def load(config_details):
for name in all_service_names
}
config_file = config_details.config_files[0]
validate_top_level_object(config_file.config)
config_file = process_config_file(config_details.config_files[0])
for next_file in config_details.config_files[1:]:
validate_top_level_object(next_file.config)
next_file = process_config_file(next_file)
config_file = ConfigFile(
config_file.filename,
merge_services(config_file.config, next_file.config))
config = merge_services(config_file.config, next_file.config)
config_file = config_file._replace(config=config)
return load_file(config_file.filename, config_file.config)
return build_services(config_file.filename, config_file.config)
class ServiceLoader(object):
def process_config_file(config_file, service_name=None):
validate_top_level_object(config_file.config)
processed_config = interpolate_environment_variables(config_file.config)
validate_against_fields_schema(processed_config)
if service_name and service_name not in processed_config:
raise ConfigurationError(
"Cannot extend service '{}' in {}: Service not found".format(
service_name, config_file.filename))
return config_file._replace(config=processed_config)
class ServiceExtendsResolver(object):
def __init__(
self,
working_dir,
@ -222,7 +234,7 @@ class ServiceLoader(object):
already_seen=None
):
if working_dir is None:
raise ValueError("No working_dir passed to ServiceLoader()")
raise ValueError("No working_dir passed to ServiceExtendsResolver()")
self.working_dir = os.path.abspath(working_dir)
@ -235,11 +247,17 @@ class ServiceLoader(object):
self.service_name = service_name
self.service_dict['name'] = service_name
def detect_cycle(self, name):
if self.signature(name) in self.already_seen:
raise CircularReference(self.already_seen + [self.signature(name)])
@property
def signature(self):
return self.filename, self.service_name
def detect_cycle(self):
if self.signature in self.already_seen:
raise CircularReference(self.already_seen + [self.signature])
def run(self):
self.detect_cycle()
def make_service_dict(self):
service_dict = dict(self.service_dict)
env = resolve_environment(self.working_dir, self.service_dict)
if env:
@ -252,45 +270,32 @@ class ServiceLoader(object):
if not self.already_seen:
validate_against_service_schema(service_dict, self.service_name)
return process_container_options(self.working_dir, service_dict)
return service_dict
def validate_and_construct_extends(self):
extends = self.service_dict['extends']
if not isinstance(extends, dict):
extends = {'service': extends}
validate_extends_file_path(self.service_name, extends, self.filename)
config_path = self.get_extended_config_path(extends)
service_name = extends['service']
config = load_yaml(config_path)
validate_top_level_object(config)
full_extended_config = interpolate_environment_variables(config)
validate_extended_service_exists(
service_name,
full_extended_config,
config_path
)
validate_against_fields_schema(full_extended_config)
service_config = full_extended_config[service_name]
extended_file = process_config_file(
ConfigFile.from_filename(config_path),
service_name=service_name)
service_config = extended_file.config[service_name]
return config_path, service_config, service_name
def resolve_extends(self, extended_config_path, service_config, service_name):
other_working_dir = os.path.dirname(extended_config_path)
other_already_seen = self.already_seen + [self.signature(self.service_name)]
other_loader = ServiceLoader(
other_working_dir,
resolver = ServiceExtendsResolver(
os.path.dirname(extended_config_path),
extended_config_path,
self.service_name,
service_name,
service_config,
already_seen=other_already_seen,
already_seen=self.already_seen + [self.signature],
)
other_loader.detect_cycle(service_name)
other_service_dict = other_loader.make_service_dict()
other_service_dict = process_service(resolver.working_dir, resolver.run())
validate_extended_service_dict(
other_service_dict,
extended_config_path,
@ -304,13 +309,11 @@ class ServiceLoader(object):
need to obtain a full path too or we are extending from a service
defined in our own file.
"""
validate_extends_file_path(self.service_name, extends_options, self.filename)
if 'file' in extends_options:
return expand_path(self.working_dir, extends_options['file'])
return self.filename
def signature(self, name):
return self.filename, name
def resolve_environment(working_dir, service_dict):
"""Unpack any environment variables from an env_file, if set.
@ -354,7 +357,7 @@ def validate_ulimits(ulimit_config):
"than 'hard' value".format(ulimit_config))
def process_container_options(working_dir, service_dict):
def process_service(working_dir, service_dict):
service_dict = dict(service_dict)
if 'volumes' in service_dict and service_dict.get('volume_driver') is None:

10
compose/config/validation.py
View file

@ -96,14 +96,6 @@ def validate_extends_file_path(service_name, extends_options, filename):
)
def validate_extended_service_exists(extended_service_name, full_extended_config, extended_config_path):
if extended_service_name not in full_extended_config:
msg = (
"Cannot extend service '%s' in %s: Service not found"
) % (extended_service_name, extended_config_path)
raise ConfigurationError(msg)
def get_unsupported_config_msg(service_name, error_key):
msg = "Unsupported config option for '{}' service: '{}'".format(service_name, error_key)
if error_key in DOCKER_CONFIG_HINTS:
@ -264,7 +256,7 @@ def process_errors(errors, service_name=None):
msg))
else:
root_msgs.append(
"Service '{}' doesn\'t have any configuration options. "
"Service \"{}\" doesn't have any configuration options. "
"All top level keys in your docker-compose.yml must map "
"to a dictionary of configuration options.'".format(service_name))
elif error.validator == 'required':