prometheus.yaml/yml typo

[taitruong]

In the install guide (https://hermes.informal.systems/tutorials/production/setup-grafana.html) it referes to these 3 files:

1. https://hermes.informal.systems/assets/docker-compose.yaml
2. https://hermes.informal.systems/assets/prometheus.yaml
3. https://hermes.informal.systems/assets/grafana_template.json

In docker-compose.yaml file it maps a local file prometheus.yml file:

  prometheus:
    image: prom/prometheus:v2.38.0
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
    command: --config.file=/etc/prometheus/prometheus.yml
    networks:
      - prometheus

So prometheus.yaml should better be renamed to prometheus.yml in assets folder.

[taitruong]

Pls also note my discussion I created today: #3105
I managed to get Grafana running, but besides hermes.log no metrics are shown.