This is Slacktee implementation inside of a Docker container. For more information please visit https://github.com/course-hero/slacktee.
Use it the same way as you would use slacktee, but in a Docker way ;).
Example:
echo "Hello World!" | docker run --rm -i -v $(pwd)/slacktee.conf:/slacktee.conf vizualni/slacktee --config /slacktee.conf --channel "#general" --plain-text
Currently, only supported version is the default one, which is the latest
. If there is a need, it's easy to add in the future.