Tooling Manager

An service responsible for deploying and managing Exercism's tooling.

It does the following:

• Gets the machines EC2 tags
• Looks for tags that list which languages should be used for each tool (e.g. tooling-test-runners: all)
• Creates a list of all the language/tool types
• For each:
  • Finds the production tag for that in ECR
  • Downloads the production image
  • Symlinks it.

All of that can be stepped through quite clearly in lib/tooling_manager/manager.rb.

Server Setup

Each tooling server should have the following tags:

• tooling-test-runners
• tooling-analyzers
• tooling-representers

Each should have a value of a language group. Language groups are stored in DynamoDB.

The language group is prefixed with the type when looked up.

For example, specifying the tag: tooling-test-runners: "all", will lookup the test-runners-all group in DynamoDB.