This repository creates a Docker image that retrieves the history of a Slack channel.
It validates that Checkson sent notifications to the Slack channel recently. The notifications are triggered by this Checkson check: https://github.com/checkson-io/checkson-flapping-self-check
The following environment variable must be defined: SLACK_BOT_TOKEN. It must contain a
Slack bot token with the Bot token scope channels:history (configurable in OAuth & Permissions
when creating a Slack application)