Original credit to capkopper/s4cmd - optimised this for running as a one off or within a CI/CD environment.
S4cmd is a command-line utility for accessing Amazon S3, inspired by s3cmd.
We have used s3cmd heavily for a number of scripted, data-intensive applications. However as the need for a variety of small improvements arose, we created our own implementation, s4cmd. It is intended as an alternative to s3cmd for enhanced performance and for large files, and with a number of additional features and fixes that we have found useful.
It strives to be compatible with the most common usage scenarios for s3cmd. It does not offer exact drop-in compatibility, due to a number of corner cases where different behavior seems preferable, or for bugfixes.
This Docker image is based on the official Alpine:3.2 base image.
You will require some form of IAM rule / user account with keys set up in order to run S4CMD
You can parse this in as part of an .env file when running the container.
The key ENV's are:
S3_ACCESS_KEY=abc
S3_SECRET_KEY=abc+123
All the s4cmd commands are documented well on their repo foundhere
To pull the image for the first time:
docker pull graymic/s4
e.g. Running an s4cmd command:
docker run --env-file=myfile.env graymic/s4 get s3://[bucket]/[file]