Cleaned simple kubernetes manager

[iripiri]

• based on current master
• incorporated review from Add manager for simple Kubernetes job creation #47
• summarized changes into few commits

[Copilot]

Pull Request Overview

This PR introduces a simplified Kubernetes manager and job schema, refactors event watcher initialization, and updates related configurations.

• Added a JSON schema for “Simple Kubernetes Job” definitions.
• Implemented KubernetesManagerSimple with a parameter builder and creation logic.
• Refactored thread setup, logging, and configuration loading in the core controller and component classes.

Reviewed Changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
villas/controller/schemas/manager/kubernetes-simple/create.yaml	New JSON schema for simple Kubernetes jobs
villas/controller/controller.py	Added TimeoutError catch and updated warning log
villas/controller/components/simulators/kubernetes.py	Renamed stop parameter and added explicit state transition
villas/controller/components/managers/kubernetes_simple.py	New simple manager and build_parameters helper
villas/controller/components/managers/kubernetes.py	Removed unused watcher threads; improved namespace setup and event filtering
villas/controller/components/manager.py	Registered kubernetes-simple in the factory
villas/controller/component.py	Changed schema validation/storage logic and status mapping
etc/params_k8s_dpsim.yaml	Aligned activeDeadlineSeconds and ttlSecondsAfterFinished to 1h
etc/config_simplekub.yaml	Added configuration snippet for the simple Kubernetes manager

Comments suppressed due to low confidence (2)

villas/controller/components/simulators/kubernetes.py:197

• [nitpick] The parameter name 'message' is inconsistent with other simulator methods using 'payload'; consider renaming it to 'payload' for clarity.

 def stop(self, message):

villas/controller/component.py:155

• This mapping now returns raw schema dicts, but the status consumer may expect validator objects with a .schema attribute. Ensure downstream code handles the new format or restore the previous .schema access.

 name: v for name, v in self.schema.items()

[Copilot]

Use LOGGER.warning instead of the deprecated LOGGER.warn for consistency with the Python logging API.

Suggested change

	LOGGER.warn('TimeoutError, let kombu reconnect..')
	LOGGER.warning('TimeoutError, let kombu reconnect..')

[Copilot]

[nitpick] The parameter 'adls' is unclear—consider renaming it to 'active_deadline_seconds' to improve readability.

Suggested change

	defbuild_parameters(sim_name, jobname, image, adls=3600, privileged=False, name=None, uuid=None):
	defbuild_parameters(sim_name, jobname, image, active_deadline_seconds=3600, privileged=False, name=None, uuid=None):

[Copilot]

[nitpick] Include the caught exception in the log message to aid debugging, e.g., LOGGER.warning('TimeoutError occurred, reconnecting: %s', err).

Suggested change

	exceptTimeoutError:
	LOGGER.warn('TimeoutError, let kombu reconnect..')
	exceptTimeoutErroraserr:
	LOGGER.warn('TimeoutError occurred, let kombu reconnect: %s', err)