Question:
Using Boto3, the python script downloads files from an S3 bucket to read them and write the contents of the downloaded files to a file called blank_file.txt.
My question is, how would it work the same way once the script gets on an AWS Lambda function?
Answer:
Lambda provides 512 MB of /tmp space. You can use that mount point to store the downloaded S3 files or to create new ones.
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s3client.download_file(bucket_name, obj.key, '/tmp/'+filename) ... blank_file = open('/tmp/blank_file.txt', 'w') |
The working directory used by Lambda is /var/task and it is a read-only filesystem. You will not be able to create files in it.