Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications.

An Ubuntu-based docker component with a wide number of Tcl packages ready for use is available here . To run it, make sure you have docker and run the following (perhaps with sudo, depending on your installation and OS):

docker run --rm -it efrecon/tcl tclsh8.6

This should give you an interactive Tcl prompt with tclreadline enabled.

Docker also has an API, for an implementation check docker-client. Lately, docker has released (or acquired) three additional tools:

  • Compose manages sets of components forming an application using a YAML description.
  • Machine creates virtual machines and provides drivers for a large number of cloud providers.
  • Swarm manages clusters of virtual machines and orchestrate components.

Check out machinery for a tool to tighten all these together, again using a YAML description (but now with descriptions for each of the virtual machines that are part of the cluster).