A simple python script and docker container for pushing exit codes via pubsub. Useful for doing mutex-type operations in parallel drone pipelines.

You can run something like this with a redis running on your local machine:

docker run \
    -e REDIS_URL=redis://host.docker.internal \
    -e REDIS_CHANNEL=test \
    daxxog/redis-subscribe-exit

And then in another terminal, push an exit code:

redis-cli PUBLISH test 2