sanitize more config logs

[bpkroth]

Pull Request

Title

Sanitize more config logging.

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Description

Follow ups to #988

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Type of Change

• 🛠️ Bug fix

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Testing

CI

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[Copilot]

Pull Request Overview

This PR enhances security by sanitizing configuration data before logging to prevent sensitive information exposure.

• Wrapped raw JSON inputs with sanitize_config in logging calls.
• Updated warning and info messages to use sanitized output.
• Follow-up adjustments from PR #988 to cover additional logging points.

Comments suppressed due to low confidence (3)

mlos_bench/services/config_persistence.py:197

• The exception message in the raise ValueError still uses the raw json and may expose sensitive data. Use sanitize_config(json) in the formatted message to ensure consistency and prevent leakage.

_LOG.error("Failed to parse config from JSON string: %s", sanitize_config(json))

mlos_bench/services/config_persistence.py:703

• [nitpick] Logging the entire jsons list may generate very large logs and impact readability. Consider logging a summary (e.g., count of services) or truncating long entries after sanitization.

_LOG.info("Load services: %s parent: %s", sanitize_config(jsons), parent.__class__.__name__)

mlos_bench/services/config_persistence.py:738

• [nitpick] The variable name jsons is ambiguous and could be confused with the JSON module. Consider renaming it to configs or tunable_payloads for clarity.

def load_tunables(...):