Automate Jelastic Billing Exports

Each week I need a script that signs in to my Jelastic cloud account, pulls the latest usage rates and billing cost, writes them into clearly-formatted CSV files, then drops those files onto my FTP server.

I am fine with Python, Bash, or any language that can talk to the Jelastic API and run head-less on a Linux VM. Please keep credentials and end-points in a separate, editable config so I can swap them out later. A small amount of logging (success/fail, timestamp, file name) is essential so I can trace what happened if something goes wrong.

Deliverables
• Source code with clear in-line comments
• Sample config file (redacted values)
• One-page setup guide showing cron or systemd scheduling for weekly runs
• Proof it works: a test CSV produced from my staging account and automatically uploaded to the FTP folder I specify

The work is complete when the job runs on schedule, the CSV contains the correct usage and cost data, and I can toggle any parameter (date range, FTP path, file name pattern) from the config without touching the code.