COSBU - A utility to back up object storage using a simple Docker container with rclone and shell scripts.

It can run in any environment, but was designed to run on a cloud provider's serverless infrastructure, so that COS back up will not incur egress charges. It has only been tested on IBM's Code Engine service.

There are three command line options:

• sync - Uses rclone's sync option to synchronize the TARGET bucket with the SOURCE. NOTE: This includes deleting files in the target that have been deleted from the source.
• copy - Copies new/changed files from source to target bucket. Does NOT delete from target.
• check - Compares the COS buckets to see if they are in sync.

The container expects the following environment variables:
COSBU_SRC_ACCESSKEY - The Access Key for the Source COS instance
COSBU_SRC_SECRETKEY - The Secret Access Key for the Source COS instance
COSBU_SRC_ENDPOINT - The Source endpoint. Use the COS provider's INTERNAL endpoint here to avoid egress charges. On IBM COS this is the "direct" endpoint.
COSBU_SRC_BUCKET - The Source bucket

COSBU_TGT_ACCESSKEY - The Target Key for the Source COS instance
COSBU_TGT_SECRETKEY - The Target Access Key for the Source COS instance
COSBU_TGT_ENDPOINT - The Target endpoint. Use the COS provider's INTERNAL endpoint here to avoid egress charges. On IBM COS this is the "direct" endpoint.
COSBU_TGT_BUCKET - The Target bucket