You run the container based on a Docker image to launch your application with private resources, securely isolated from the rest of your machine.
A Docker image is a private file system for your container. It provides all the files and code your container needs. For more information, see https://docs.docker.com/get-started/.
You can deploy a remote harvesting server using a command or a docker-compose file.
You can run simultaneously as many remote harvesting servers as necessary.