// ============================================================
// Docker log collection -> Grafana Cloud Loki
// ============================================================

discovery.docker "containers" {
  host = "unix:///var/run/docker.sock"
}

discovery.relabel "containers" {
  targets = discovery.docker.containers.targets

  rule {
    source_labels = ["__meta_docker_container_name"]
    target_label  = "container"
  }

  rule {
    source_labels = ["__meta_docker_container_name"]
    target_label  = "job"
  }
}

loki.source.docker "containers" {
  host       = "unix:///var/run/docker.sock"
  targets    = discovery.relabel.containers.output
  forward_to = [loki.write.grafana_cloud.receiver]
}

loki.write "grafana_cloud" {
  endpoint {
    url = env("GRAFANA_CLOUD_LOKI_URL")

    basic_auth {
      username = env("GRAFANA_CLOUD_LOKI_USER")
      password = env("GRAFANA_CLOUD_API_KEY")
    }
  }
}

// ============================================================
// Node exporter metrics -> Grafana Cloud Prometheus
// ============================================================

prometheus.exporter.unix "node" {
  procfs_path = "/host/proc"
  sysfs_path  = "/host/sys"
  rootfs_path = "/host/root"
}

prometheus.scrape "node" {
  targets    = prometheus.exporter.unix.node.targets
  forward_to = [prometheus.remote_write.grafana_cloud.receiver]

  scrape_interval = "60s"
}

prometheus.remote_write "grafana_cloud" {
  endpoint {
    url = env("GRAFANA_CLOUD_PROMETHEUS_URL")

    basic_auth {
      username = env("GRAFANA_CLOUD_PROMETHEUS_USER")
      password = env("GRAFANA_CLOUD_API_KEY")
    }
  }
}