How to download EODATA file using boto3 on CREODIAS

Download particular Landsat-5 image.

Warning

We strongly recommend using virtualenv for isolating python packages. Configuration tutorial is available here: How to install Python virtualenv or virtualenvwrapper on CREODIAS.

If virtualenv is activated:

(myvenv) eouser@vm01:~$ pip3 install boto3

Or if we install package globally:

eouser@vm01:~$ sudo pip3 install boto3

Script for downloading one .png file

You will need EODATA access key and secret key to execute the code below. Obtain them by following this article: How to get credentials used for mounting EODATA on a cloud VM on CREODIAS. In the code below, replace the contents of the access_key variable with your access key and the contents of the secret_key variable with your secret key, respectively.

Remember that you cannot change the output file extension. If you do so, the file content would be empty.

import boto3
access_key='YOUR ACCESS KEY'
secret_key='YOUR SECRET KEY'
key='Landsat-5/TM/L1T/2011/11/16/LS05_RMPS_TM__GTC_1P_20111116T100042_20111116T100111_147386_0194_0035_4BF1/LS05_RMPS_TM__GTC_1P_20111116T100042_20111116T100111_147386_0194_0035_4BF1.BP.PNG'
host='http://data.cloudferro.com'
s3=boto3.resource('s3',aws_access_key_id=access_key,
aws_secret_access_key=secret_key, endpoint_url=host,)

bucket=s3.Bucket('DIAS')

bucket.download_file(key, '/home/eouser/image.png')

Save your file with .py extension and run with the ‘python3 <filename.py>’ command in your terminal. For example:

(boto3) eouser@vm01:~$ python3 eodownload.py

And here’s result:

(boto3) eouser@vm01:~$ python3 eodownload.py
(boto3) eouser@vm01:~$ ls
eodownload.py  image.png