FireHydrant API => Slack API example

This is an example of how to display FireHydrant API data in a Slack channel or DM on a regular basis.

Usage

1. Create a Slack incoming webhook
2. Add a Bot token and the Slack webhook to manifests/secret.yaml
3. Update files/example.rb to include the information you'd like to display. This uses Slack's Block Kit to render the messages
4. Run make to render the configmap manifest to include your new code
5. Run make apply or `kubectl apply -f manifests/ -n YOUR_NAMESPACE
6. Watch Slack