To have real prometheus data on the vagrant vm

- ssh -g -L 9090:192.168.100.29:9090 pergamon
- On the vm, edit the `/etc/prometheus/prometheus.yml`
```
- job_name: 'federate'
  scrape_interval: 15s

  honor_labels: true
  metrics_path: '/federate'

  params:
    'match[]':
      - '{__name__=~"sql_pg_stat.*"}'

  static_configs:
    - targets:
      - '192.168.30.38:9090'
- job_name: 'federate'
  scrape_interval: 15s

  honor_labels: true
  metrics_path: '/federate'

  params:
    'match[]':
      - '{__name__=~"sql_pg_stat.*"}'

  static_configs:
    - targets:
      - '192.168.30.38:9090'
```
- restart prometheus