Automating FTP File Downloads Using AWS Batch And EventBridge

In this article, we explore how to automate FTP file downloads using AWS Batch and EventBridge. The setup involves scheduling jobs with EventBridge to trigger AWS Batch, which retrieves files from an FTP server and stores them in an S3 bucket. This approach is particularly useful when dealing with long-running tasks that exceed AWS Lambda’s 15-minute execution limit.

Key Components:

AWS EventBridge Scheduler: Used to create one-time or recurring schedules to trigger AWS Batch jobs.
AWS Batch: Handles the container-based implementation for retrieving data from the FTP server.
Amazon S3: Stores the retrieved files for further processing or analysis.

Example Setup:

1. EventBridge Rule:

aws events put-rule --name "FTP-Download-Schedule" --schedule-expression "cron(0 12 * * ? *)"

This creates a rule to trigger the AWS Batch job daily at 12 PM UTC.

2. AWS Batch Job Definition:

aws batch register-job-definition --job-definition-name "ftp-download-job" --type container --container-properties file://container-properties.json

The `container-properties.json` file contains the Docker image and command to run the FTP download script.

3. Triggering the Job:

aws batch submit-job --job-name "ftp-download" --job-queue "my-job-queue" --job-definition "ftp-download-job"

4. Storing Files in S3:

aws s3 cp /path/to/local/file s3://my-bucket/path/to/destination/

What Undercode Say:

Automation is a cornerstone of modern DevOps practices, and AWS provides a robust set of tools to streamline workflows. In this article, we demonstrated how to automate FTP file downloads using AWS Batch and EventBridge, bypassing the limitations of AWS Lambda for long-running tasks. This approach is highly scalable and can be adapted to various use cases, such as ETL pipelines, data ingestion, and more.

For those looking to deepen their understanding of AWS services, here are some additional commands and resources:

AWS CLI Installation:

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install

Listing S3 Buckets:
```
aws s3 ls
```
Creating an S3 Bucket:
```
aws s3 mb s3://my-new-bucket
```
Deleting an S3 Bucket:
```
aws s3 rb s3://my-new-bucket --force
```

Monitoring AWS Batch Jobs:

aws batch describe-jobs --jobs <job-id>

For further reading, check out the AWS Batch Documentation and EventBridge User Guide.

By leveraging these tools, you can build efficient, automated workflows that save time and reduce manual intervention. Whether you’re managing data pipelines, deploying applications, or monitoring infrastructure, AWS offers the flexibility and power to meet your needs.

References:

initially reported by: https://www.linkedin.com/posts/darryl-ruggles_ftp-automatedscheduled-file-downloads-using-activity-7301273095858761728-_nRR – Hackers Feeds
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