Scheduler

In this guide, we’ll demonstrate how to automate daily tasks using Docker, featuring an example with cryptocurrency trading using the CCXT library. This setup allows you to run a daily cron job without the hassle of managing your environment manually.

Your project can following structure:

/project-root
├── ccxt
│   ├── Dockerfile
│   ├── daily.sh
│   ├── setting.sh
│   ├── entrypoint.sh
│   └── src
│       └── *.py (your Python scripts)
└── docker-compose.yml

1. Dockerfile - Defines the Docker image.
2. Docker Compose - Orchestrates the Docker container.
3. daily.sh - The script that executes your trading strategy daily.
4. setting.sh - Contains cron settings for scheduling the task.
5. entrypoint.sh - Serves as the entry point for the Docker container.

Dockerfile

The Dockerfile is responsible for setting up the environment where your scripts will run. Here’s how you structure it:

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docker compose

The docker-compose.yml file simplifies the process of running multiple containers and helps in managing the volume mounts for your source code, such mount - ./ccxt/src:/app/src/ .

Here’s an example of how it can be structured:

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daily.sh

The daily.sh script contains the logic for the daily task. For this demo, it serves as a placeholder for your trading operations. Customize it according to your specific needs.

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setting.sh

This script is designed for dynamic configuration of your cron jobs without a full rebuild your Docker image whenever you want to modify the scheduling or logging.

Here’s the cron job format:
58 23 * * * /app/daily.sh >> /app/src/workspace/cron.log 2>&1"

The setting.sh script sets up a cron job. For example, to run daily.sh every day at 11:58 PM, logging the output for monitoring.

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entrypoint.sh

The entrypoint.sh script acts as the entry point for your Docker container, executing setting.sh to initiate the scheduling of your daily tasks.

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