https://app.slack.com/get-started#/createnew
- Make you own Slack workspace
- Add #alert channel
- Create A New App (From scratch)
- Name Your bot & pick your workplace
- Configure "Display Information"
- Add "Incoming Webhooks"
- Activate Incoming Webhooks
- Add "Add New Webhook to Workspace"
- Select channel, e.g. #alerts -> Allow
- Copy Webhook URL (will be used in SIgnal K plugin)
- Paste Slack Webhook URL to plugin config
- Add message title
- Add Slack channel, default #alert