mirror of
https://github.com/thegeeklab/docker-tidy.git
synced 2024-11-22 04:00:40 +00:00
8e12d9d38d
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Robert Kaussow <mail@thegeeklab.de>
258 lines
8.3 KiB
Python
258 lines
8.3 KiB
Python
#!/usr/bin/env python3
|
|
"""Global settings definition."""
|
|
|
|
import os
|
|
|
|
import anyconfig
|
|
import environs
|
|
import jsonschema.exceptions
|
|
import ruamel.yaml
|
|
from appdirs import AppDirs
|
|
from jsonschema._utils import format_as_index
|
|
|
|
import dockertidy.exception
|
|
import dockertidy.parser
|
|
from dockertidy.parser import env
|
|
from dockertidy.utils import Singleton, dict_intersect
|
|
|
|
config_dir = AppDirs("docker-tidy").user_config_dir
|
|
default_config_file = os.path.join(config_dir, "config.yml")
|
|
|
|
|
|
class Config:
|
|
"""
|
|
Create an object with all necessary settings.
|
|
|
|
Settings are loade from multiple locations in defined order (last wins):
|
|
- default settings defined by `self._get_defaults()`
|
|
- yaml config file, defaults to OS specific user config directory
|
|
- provided cli parameters
|
|
"""
|
|
|
|
SETTINGS = {
|
|
"command": {
|
|
"default": "",
|
|
},
|
|
"config_file": {
|
|
"default": "",
|
|
"env": "CONFIG_FILE",
|
|
"type": environs.Env().str
|
|
},
|
|
"dry_run": {
|
|
"default": False,
|
|
"env": "DRY_RUN",
|
|
"file": True,
|
|
"type": environs.Env().bool
|
|
},
|
|
"http_timeout": {
|
|
"default": 60,
|
|
"env": "HTTP_TIMEOUT",
|
|
"file": True,
|
|
"type": environs.Env().int
|
|
},
|
|
"logging.level": {
|
|
"default": "WARNING",
|
|
"env": "LOG_LEVEL",
|
|
"file": True,
|
|
"type": environs.Env().str
|
|
},
|
|
"logging.json": {
|
|
"default": False,
|
|
"env": "LOG_JSON",
|
|
"file": True,
|
|
"type": environs.Env().bool
|
|
},
|
|
"gc.max_container_age": {
|
|
"default": "",
|
|
"env": "GC_MAX_CONTAINER_AGE",
|
|
"file": True,
|
|
"type": env.timedelta_validator
|
|
},
|
|
"gc.max_image_age": {
|
|
"default": "",
|
|
"env": "GC_MAX_IMAGE_AGE",
|
|
"file": True,
|
|
"type": env.timedelta_validator
|
|
},
|
|
"gc.dangling_volumes": {
|
|
"default": False,
|
|
"env": "GC_DANGLING_VOLUMES",
|
|
"file": True,
|
|
"type": environs.Env().bool
|
|
},
|
|
"gc.exclude_images": {
|
|
"default": [],
|
|
"env": "GC_EXCLUDE_IMAGES",
|
|
"file": True,
|
|
"type": environs.Env().list
|
|
},
|
|
"gc.exclude_container_labels": {
|
|
"default": [],
|
|
"env": "GC_EXCLUDE_CONTAINER_LABELS",
|
|
"file": True,
|
|
"type": environs.Env().list
|
|
},
|
|
"stop.max_run_time": {
|
|
"default": "",
|
|
"env": "STOP_MAX_RUN_TIME",
|
|
"file": True,
|
|
"type": env.timedelta_validator
|
|
},
|
|
"stop.prefix": {
|
|
"default": [],
|
|
"env": "STOP_PREFIX",
|
|
"file": True,
|
|
"type": environs.Env().list
|
|
},
|
|
}
|
|
|
|
def __init__(self, args=None):
|
|
"""
|
|
Initialize a new settings class.
|
|
|
|
:param args: An optional dict of options, arguments and commands from the CLI.
|
|
:param config_file: An optional path to a yaml config file.
|
|
:returns: None
|
|
|
|
"""
|
|
if args is None:
|
|
self._args = {}
|
|
else:
|
|
self._args = args
|
|
self._schema = None
|
|
self.config_file = default_config_file
|
|
self.config = None
|
|
self._set_config()
|
|
|
|
def _get_args(self, args):
|
|
cleaned = dict(filter(lambda item: item[1] is not None, args.items()))
|
|
|
|
normalized = {}
|
|
for key, value in cleaned.items():
|
|
normalized = self._add_dict_branch(normalized, key.split("."), value)
|
|
|
|
# Override correct log level from argparse
|
|
levels = ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]
|
|
log_level = levels.index(self.SETTINGS["logging.level"]["default"])
|
|
if normalized.get("logging"):
|
|
for adjustment in normalized["logging"]["level"]:
|
|
log_level = min(len(levels) - 1, max(log_level + adjustment, 0))
|
|
normalized["logging"]["level"] = levels[log_level]
|
|
|
|
return normalized
|
|
|
|
def _get_defaults(self, files=False):
|
|
normalized = {}
|
|
|
|
for key, item in self.SETTINGS.items():
|
|
if files and not item.get("file"):
|
|
continue
|
|
normalized = self._add_dict_branch(normalized, key.split("."), item["default"])
|
|
|
|
self.schema = anyconfig.gen_schema(normalized)
|
|
return normalized
|
|
|
|
def _get_envs(self):
|
|
normalized = {}
|
|
for key, item in self.SETTINGS.items():
|
|
if item.get("env"):
|
|
prefix = "TIDY_"
|
|
envname = prefix + item["env"]
|
|
try:
|
|
value = item["type"](envname)
|
|
normalized = self._add_dict_branch(normalized, key.split("."), value)
|
|
except environs.EnvError as e:
|
|
if f'"{envname}" not set' in str(e):
|
|
pass
|
|
else:
|
|
raise dockertidy.exception.ConfigError(
|
|
"Unable to read environment variable", str(e)
|
|
) from e
|
|
|
|
return normalized
|
|
|
|
def _set_config(self):
|
|
args = self._get_args(self._args)
|
|
envs = self._get_envs()
|
|
defaults = self._get_defaults()
|
|
files_raw = self._get_defaults(files=True)
|
|
|
|
# preset config file path
|
|
if envs.get("config_file"):
|
|
self.config_file = self._normalize_path(envs.get("config_file"))
|
|
|
|
if args.get("config_file"):
|
|
self.config_file = self._normalize_path(args.get("config_file"))
|
|
|
|
source_files = []
|
|
source_files.append(self.config_file)
|
|
source_files.append(os.path.join(os.getcwd(), ".dockertidy"))
|
|
source_files.append(os.path.join(os.getcwd(), ".dockertidy.yml"))
|
|
source_files.append(os.path.join(os.getcwd(), ".dockertidy.yaml"))
|
|
|
|
for config in [i for i in source_files if os.path.exists(i)]:
|
|
with open(config, encoding="utf8") as stream:
|
|
s = stream.read()
|
|
try:
|
|
normalized = ruamel.yaml.safe_load(s)
|
|
except (ruamel.yaml.composer.ComposerError, ruamel.yaml.scanner.ScannerError) as e:
|
|
message = f"{e.context} {e.problem}"
|
|
raise dockertidy.exception.ConfigError(
|
|
f"Unable to read config file {config}", message
|
|
) from e
|
|
|
|
if self._validate(normalized):
|
|
anyconfig.merge(files_raw, normalized, ac_merge=anyconfig.MS_DICTS)
|
|
files_raw["logging"]["level"] = files_raw["logging"]["level"].upper()
|
|
|
|
files = dict_intersect(files_raw, self._get_defaults(files=True))
|
|
|
|
if self._validate(files):
|
|
anyconfig.merge(defaults, files, ac_merge=anyconfig.MS_DICTS)
|
|
|
|
if self._validate(envs):
|
|
anyconfig.merge(defaults, envs, ac_merge=anyconfig.MS_DICTS)
|
|
|
|
if self._validate(args):
|
|
anyconfig.merge(defaults, args, ac_merge=anyconfig.MS_DICTS)
|
|
|
|
if "config_file" in defaults:
|
|
defaults.pop("config_file")
|
|
|
|
defaults["logging"]["level"] = defaults["logging"]["level"].upper()
|
|
|
|
self.config = defaults
|
|
|
|
def _normalize_path(self, path):
|
|
if not os.path.isabs(path):
|
|
base = os.path.join(os.getcwd(), path)
|
|
return os.path.abspath(os.path.expanduser(os.path.expandvars(base)))
|
|
|
|
return path
|
|
|
|
def _validate(self, config):
|
|
try:
|
|
anyconfig.validate(config, self.schema, ac_schema_safe=False)
|
|
except jsonschema.exceptions.ValidationError as e:
|
|
schema_error = "Failed validating '{validator}' in schema{schema}\n{message}".format(
|
|
validator=e.validator,
|
|
schema=format_as_index(list(e.relative_schema_path)[:-1]),
|
|
message=e.message
|
|
)
|
|
raise dockertidy.exception.ConfigError("Configuration error", schema_error) from e
|
|
|
|
return True
|
|
|
|
def _add_dict_branch(self, tree, vector, value):
|
|
key = vector[0]
|
|
tree[key] = value \
|
|
if len(vector) == 1 \
|
|
else self._add_dict_branch(tree[key] if key in tree else {}, vector[1:], value)
|
|
return tree
|
|
|
|
|
|
class SingleConfig(Config, metaclass=Singleton):
|
|
"""Singleton config object."""
|
|
|
|
pass
|