GitHub Actions CI Pipeline Baseline

[RothAndrew]

What/Why

• Implement a CI pipeline as ChatOps slash commands. For several reasons, this is much safer and more economical than always running pipelines on new commit pushes
  • Saves on the free CI minutes we get from GitHub
  • Will save money on AWS usage charges once we get the ephemeral E2E tests integrated
  • Protects our secrets like tokens and AWS creds from automatically being used on new PRs from people we don't know

This initial PR sets up the framework, and includes a couple of test runs as a proof of concept.

• /test ping: Adds a new status check that just says "pong"
• /test hello: PoC of a fully implemented test run, just runs echo "Hello World!" for now.
• /test quote: Adds a new status check that outputs a famous quote
• /test all: Runs all of the above except ping

You can chain them together too: /test ping hello quote

None of this will work in this PR, since GitHub Actions only uses actions in the trunk branch.

A huge amount of work has been copied from CloudPosse's "Actions" repo: https://github.com/cloudposse/actions
Big shout out to all the great work from @osterman and the rest of the CP team.

Testable PoC here: defenseunicorns/slash-command-dispatch-test#4

[jeff-mccoy]

Since it's functional LGTM, but admittedly I need to learn more about this to be confident to maintain it. Approve to prevent blocking, I'll catch up this weekend on how this all works.

[jeff-mccoy]

please squash and merge

[RothAndrew]

Since it's functional LGTM, but admittedly I need to learn more about this to be confident to maintain it. Approve to prevent blocking, I'll catch up this weekend on how this all works.

I'm happy to pair with you whenever to walk through it. I'm new to GH Actions as well but I've been aware this functionality exists for a couple of years now due to my involvement in the Cloud Posse Office Hours group, just haven't tried using it until now.