Fixing the mysql socket commands.

[micheas]

This is because the default socket was being used.

Take two this is probably because the /cloudsql mount was not yet mounted

[gemini-code-assist]

Summary of Changes

Hello @micheas, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly improves the reliability of MySQL database bootstrapping by addressing potential timing issues with the /cloudsql mount. The load_sqldump function now includes a retry logic for Unix socket connections, which is crucial for environments where the socket might not be immediately available. Should the Unix socket connection ultimately fail, the system is designed to gracefully fall back to a TCP connection, ensuring that the database initialization process is more resilient and less prone to transient errors.

Highlights

• MySQL Connection Robustness: Implemented a retry mechanism for MySQL Unix socket connections within the load_sqldump function, allowing for up to 3 attempts with a 5-second delay between retries.
• Automatic TCP Fallback: If all Unix socket connection attempts fail, the system will now automatically fall back to using a TCP connection to ensure database loading proceeds.
• Enhanced Logging: Added detailed print statements to provide better visibility into MySQL connection attempts, retries, and fallbacks, aiding in debugging.

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[gemini-code-assist]

Code Review

This pull request adds a retry mechanism with a fallback to TCP for loading a SQL dump into MySQL. This is a good approach to handle potential delays in the availability of the Unix socket, especially in cloud environments. The core logic is sound, but I've provided a suggestion to refactor the load_sqldump function. The refactoring aims to reduce significant code duplication, replace magic numbers with named constants for better readability, and redirect error messages to stderr which is a standard practice. These changes will improve the code's maintainability and robustness.