add Readmee

Author: robsoned

Readme.md

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+# Mount EBS Volume EC2 User Data
+
+This repository provides a Go-based application to automate the process of mounting an EBS volume on an EC2 instance.
+
+## Features
+
+- Waits for the EBS volume to be attached.
+- Creates a folder for mounting the EBS volume if it doesn't exist.
+- Checks if the volume is already mounted.
+- Creates a file system on the EBS volume if necessary.
+- Mounts the EBS volume to the specified folder.
+
+## Environment Variables
+
+The application uses the following environment variables:
+
+- `EBS_VOLUME_DEVICE_NAME`: The device name of the EBS volume (e.g., sdh).
+- `EBS_FOLDER_PATH`: The folder path where the EBS volume will be mounted.
+- `WAIT_EBS_VOLUME_FOLDER_RETRTY_INTERVAL`: Retry interval (in seconds) for checking if the EBS volume is attached.
+- `WAIT_EBS_VOLUME_FOLDER_MAX_RETRY`: Maximum number of retries for checking if the EBS volume is attached.
+