Files
kubernetes.core/plugins/module_utils/k8s/core.py
Mike Graves 08a3d951d0 Move module dependency functions outside of module (#342)
Move module dependency functions outside of module

SUMMARY

This moves the has_at_least and requires functions that had been on the
module to top level functions. The functions on the module now call
these with a few added bits of functionality.
Moving these functions to the top level and removing their requirement
on having a module makes them usable in situations where we may not yet
have a module, such as during client creation.

ISSUE TYPE

COMPONENT NAME

ADDITIONAL INFORMATION

Reviewed-by: Alina Buzachis <None>
Reviewed-by: None <None>
2022-05-24 14:28:30 -04:00

153 lines
4.2 KiB
Python

from distutils.version import LooseVersion
from typing import Optional
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.basic import missing_required_lib
from ansible.module_utils.common.text.converters import to_text
class AnsibleK8SModule:
"""A base module class for K8S modules.
This class should be used instead of directly using AnsibleModule. If there
is a need for other methods or attributes to be proxied, they can be added
here.
"""
default_settings = {
"check_k8s": True,
"check_pyyaml": True,
"module_class": AnsibleModule,
}
def __init__(self, **kwargs) -> None:
local_settings = {}
for key in AnsibleK8SModule.default_settings:
try:
local_settings[key] = kwargs.pop(key)
except KeyError:
local_settings[key] = AnsibleK8SModule.default_settings[key]
self.settings = local_settings
self._module = self.settings["module_class"](**kwargs)
if self.settings["check_k8s"]:
self.requires("kubernetes")
self.has_at_least("kubernetes", "12.0.0", warn=True)
if self.settings["check_pyyaml"]:
self.requires("pyyaml")
@property
def check_mode(self):
return self._module.check_mode
@property
def _diff(self):
return self._module._diff
@property
def _name(self):
return self._module._name
@property
def params(self):
return self._module.params
def warn(self, *args, **kwargs):
return self._module.warn(*args, **kwargs)
def deprecate(self, *args, **kwargs):
return self._module.deprecate(*args, **kwargs)
def debug(self, *args, **kwargs):
return self._module.debug(*args, **kwargs)
def exit_json(self, *args, **kwargs):
return self._module.exit_json(*args, **kwargs)
def fail_json(self, *args, **kwargs):
return self._module.fail_json(*args, **kwargs)
def has_at_least(
self, dependency: str, minimum: Optional[str] = None, warn: bool = False
) -> bool:
supported = has_at_least(dependency, minimum)
if not supported and warn:
self.warn(
"{0}<{1} is not supported or tested. Some features may not work.".format(
dependency, minimum
)
)
return supported
def requires(
self,
dependency: str,
minimum: Optional[str] = None,
reason: Optional[str] = None,
) -> None:
try:
requires(dependency, minimum, reason=reason)
except Exception as e:
self.fail_json(msg=to_text(e))
def gather_versions() -> dict:
versions = {}
try:
import jsonpatch
versions["jsonpatch"] = jsonpatch.__version__
except ImportError:
pass
try:
import kubernetes
versions["kubernetes"] = kubernetes.__version__
except ImportError:
pass
try:
import yaml
versions["pyyaml"] = yaml.__version__
except ImportError:
pass
return versions
def has_at_least(dependency: str, minimum: Optional[str] = None) -> bool:
"""Check if a specific dependency is present at a minimum version.
If a minimum version is not specified it will check only that the
dependency is present.
"""
dependencies = gather_versions()
current = dependencies.get(dependency)
if current is not None:
if minimum is None:
return True
supported = LooseVersion(current) >= LooseVersion(minimum)
return supported
return False
def requires(
dependency: str, minimum: Optional[str] = None, reason: Optional[str] = None
) -> None:
"""Fail if a specific dependency is not present at a minimum version.
If a minimum version is not specified it will require only that the
dependency is present. This function raises an exception when the
dependency is not found at the required version.
"""
if not has_at_least(dependency, minimum):
if minimum is not None:
lib = "{0}>={1}".format(dependency, minimum)
else:
lib = dependency
raise Exception(missing_required_lib(lib, reason=reason))