The following webhook example has extra spaces and line breaks for readability. Actual webhook responses are delivered as one continuous line of text. The "team": "DevOps" line is an example of a custom variable.
Alertmanager groups its alerts, so the webhook (and therefore our workflow) will receive an array of alerts. For our example, we will simply get the workflow to output the details of the alert via a core.echo action Use the prom/alertmanager to add a service. Make sure to map port 9093:9093 when adding the service.