Verify each finding against the current code and only fix it if needed.

Nitpick comments:
In `@ocp_resources/utils/kubeconfig.py`:
- Around line 20-22: Wrap the config_file open/read in a try/except to catch
FileNotFoundError/OSError/IOError and handle it non-fatally (like the write
error pattern) so a missing/unreadable config doesn't propagate; surround the
open(config_file) / yaml.safe_load(f) block and on error log a warning (using
the module's logger) including the exception details, leave _config as None or
empty, and continue execution (do not raise); update the block referencing
config_file, _config, and yaml.safe_load to implement this behavior.

In `@tests/test_resource.py`:
- Around line 312-339: Replace this unit-style duplicate of the token-parsing
logic with an integration-style test that calls get_client so the real
resolution code is exercised: create a fake or mocked client_configuration where
client_configuration.api_key = {"authorization": "Bearer
sha256~oauth-resolved-token"}, call get_client (mock out network/cluster calls
as needed and/or monkeypatch save_kubeconfig to write to tmp_path), then assert
that save_kubeconfig was invoked with the resolved token or that the written
kubeconfig contains the expected token; reference get_client,
client_configuration.api_key, and save_kubeconfig when updating the test.
- Around line 265-270: Add a new test that verifies save_kubeconfig handles
write failures by mocking os.open to raise OSError; specifically, create a test
named test_save_kubeconfig_write_failure (in tests/test_resource.py) that
patches ocp_resources.utils.kubeconfig.os.open to raise OSError("Permission
denied"), calls save_kubeconfig(path=kubeconfig_path, host=..., token=...),
asserts the error message "Failed to save kubeconfig" appears in caplog, and
asserts the kubeconfig file does not exist after the call.

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@ocp_resources/utils/kubeconfig.py`:
- Around line 32-34: The code currently uses a truthy check on config_dict (if
config_dict:) which treats empty mappings like {} as "not provided" and lets
them fall through; change the conditional to explicitly test for presence (e.g.,
if config_dict is not None:) so an explicit empty mapping is accepted and
written as-is; update any related branches that assume falsy means missing to
use the same None check and ensure behavior for config_file and other branches
remains unchanged.
- Around line 35-39: Update the exception handling around YAML operations to
also catch yaml.YAMLError (and subclasses) in addition to OSError: where
yaml.safe_load(config_file) is called (the block that sets _config and logs via
LOGGER.error) and the similar block around yaml.safe_dump, catch yaml.YAMLError
so malformed or unserializable YAML is logged with exc_info=True and the
function continues as the docstring promises; reference the calls to
yaml.safe_load, yaml.safe_dump, the local variable _config, config_file, and
LOGGER.error when making the change.
- Around line 62-66: The current write (os.open(..., 0o600) + os.fdopen(...))
can leave an existing kubeconfig with world-readable perms after truncation;
instead write to a secure temporary file and atomically replace the target:
create the parent dir as before, create a temp file in the same directory (e.g.
using tempfile.NamedTemporaryFile(delete=False, dir=os.path.dirname(path)) or
build path + ".tmp"), open/create the temp with explicit 0o600 perms (os.open or
tempfile with os.fchmod), write yaml.safe_dump(_config) to the temp, fsync the
file descriptor, close it, then call os.replace(temp_path, path) to atomically
swap in the secure file; reference variables/functions: path, _config,
yaml.safe_dump, os.replace, os.open, os.fchmod (or tempfile.NamedTemporaryFile)
when making the change.

In `@tests/test_resource.py`:
- Around line 312-367: The tests currently duplicate the token-resolution branch
instead of exercising the real implementation; replace the in-test replication
with calls to the actual get_client(...) code path (passing
kubeconfig_output_path or equivalent parameter) so token resolution occurs in
production code, or refactor the resolution into a single helper (e.g.,
resolve_token_from_api_key) in the resource module and call that helper from
both get_client and the tests; update the two test functions
(test_save_kubeconfig_resolved_token_from_bearer and
test_save_kubeconfig_resolved_token_explicit_takes_precedence) to invoke
get_client(..., kubeconfig_output_path=kubeconfig_path) or the new
resolve_token_from_api_key helper instead of reimplementing the _resolved_token
logic, and keep assertions on the produced kubeconfig token.

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@tests/test_resource.py`:
- Line 276: Calls to save_kubeconfig pass literal secret strings (e.g.,
token="test-token"), which triggers Ruff S106; replace these hardcoded token
keyword arguments with a non-literal variable or fixture (for example use a
module-level TEST_TOKEN constant, a pytest fixture like kube_token, or read from
an env var via os.environ.get("KUBE_TOKEN", "test-token")) and update every
save_kubeconfig(...) invocation in the test file (including the other
occurrences) to pass that variable (e.g., token=TEST_TOKEN or token=kube_token)
instead of the literal string.
- Around line 345-346: Test currently patches os.open but save_kubeconfig uses
tempfile.mkstemp, so change the test to patch tempfile.mkstemp to raise an
OSError (e.g. Permission denied) to exercise the write-failure path;
specifically, replace the patch target "ocp_resources.utils.kubeconfig.os.open"
with "tempfile.mkstemp" (or patch
"ocp_resources.utils.kubeconfig.tempfile.mkstemp" if importing tempfile in that
module) so save_kubeconfig hits the exception path and the test asserts the
expected handling.

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@ocp_resources/utils/kubeconfig.py`:
- Around line 35-38: The code currently reads config_file into _config with
yaml.safe_load and later re-serializes it (yaml.dump), which alters
formatting/comments; instead preserve the file verbatim by copying the original
bytes: remove the yaml.safe_load/yaml.dump round-trip for the config_file branch
and use a binary copy (e.g., shutil.copyfile or open read/write in 'rb'/'wb') to
write the destination kubeconfig file; update the logic around the config_file
variable and eliminate use of yaml.safe_load/_dump for this path so the original
content is preserved exactly.
- Around line 23-24: The docstring in ocp_resources/utils/kubeconfig.py
currently states that errors are "logged but not raised," which is out-of-date;
update the docstring for the kubeconfig read/write function to state that the
function will raise exceptions on read or write failures (and that files are
created with 0o600 permissions) so the documentation matches runtime behavior;
refer to the kubeconfig module and the function that performs the kubeconfig
read/write in the docstring text when making this change.

---

Nitpick comments:
In `@tests/test_resource.py`:
- Around line 245-265: The test test_save_kubeconfig_with_config_file currently
only checks YAML semantic equality; update it to also assert a byte-for-byte
copy when save_kubeconfig is called with config_file by reading both source_path
and output_path in binary mode and asserting their raw bytes are identical (keep
or add this alongside the existing yaml.safe_load assertion) so that
save_kubeconfig's behavior of preserving exact file content is validated;
reference test name test_save_kubeconfig_with_config_file and variables
source_path/output_path and function save_kubeconfig to locate where to add the
binary-read/assert.