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The docker volume in docker-compose is being mounted at /data rather than /export. Without changing this, any data stored by minio at runtime is lost since it is not persistently stored in a volume.
The /app directory has already been copied into the docker image. There is no reason to mount it again at runtime via a volume.
The worker-minio containers depend on the minio service starting first.
The added text in the README.md file helps to differentiate the uses of the docker-compose.yml and docker-stack.yml files as well as explains a little on how to manage the example service.
This new file allows the example service to be started on a docker swarm.
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I followed the tutorial originally posted and soon after decided to do some testing on the result. I found that the data stored by minio was not persistent across restarts of the service. I ended up finding a bug in the compose file regarding the minio storage path.
I started to also question how the docker-compose.yml file could be simplified. I found that I could remove the
appdirectory mounts because the necessary files had already been copied into the docker images.I began experimenting with
docker stackwhich takes some slightly different syntax regarding the restart policy as well as not allowing thebuildkey. I decided to create adocker-stack.ymlfile for myself and wanted to give back to the tutorial if it indeed adds benefit.