ansible-role-traefik/templates/conf.d/10-metric-prometheus.toml

[http.routers.metric-prometheus]
  rule = "Host(`{{ inventory_hostname }}`) && PathPrefix(`/metrics`)"
  entryPoints = ["websecure"]
  service = "prometheus@internal"

  [http.routers.metric-prometheus.tls]
    certResolver = "my-resolver"