Run ecosystem Helm chart tests in PRs

[eamansour]

Story

As a Galasa maintainer, I want to exercise the Helm install of a Galasa service more frequently before changes are delivered into main, so that I can identify issues sooner.

Background

At the moment, changes to the Galasa service (e.g. API server, engine controller, extensions, etc.) are only covered by unit tests in PRs. These changes are only exercised in our galasa-service-main and prod1 services after changes are delivered into main.

This means we rely on contributors to have tried the changes out locally (e.g. in minikube) before delivering PRs. It would be good if we had a PR check that installed a Galasa service within a GitHub Actions workflow using something like minikube or kind, and then ran tests on that service to make sure everything works as expected.

We could start by running the built-in helm test command which submits a CoreManagerIVT test run.

Tasks

• Create a GitHub Actions workflow that:
  • Runs in PRs
  • Sets up a Kubernetes cluster within Docker (kind)
  • Installs the Galasa ecosystem Helm chart
  • Runs the helm test command
• Test that the workflow works as expected