// https://grafana.com/docs/alloy/latest/monitor/monitor-docker-containers/


prometheus.exporter.cadvisor "docker_metrics" {
  docker_host = "unix:///var/run/docker.sock"
  storage_duration = "5m"
  allowlisted_container_labels = ["name", "container", "container_name", "id"]
}

prometheus.scrape "scraper" {
  targets    = prometheus.exporter.cadvisor.docker_metrics.targets
  forward_to = [prometheus.relabel.docker_relabel.receiver]
  scrape_interval = "10s"
}

prometheus.relabel "docker_relabel" {
  forward_to = [prometheus.remote_write.default.receiver]
  
  rule {
    source_labels = ["container_label_com_docker_compose_project"]
    target_label  = "project"
    action        = "replace"
  }

  rule {
    source_labels = ["container_label_com_docker_compose_service"]
    target_label  = "service"
    action        = "replace"
  }
}

prometheus.remote_write "default" {
  endpoint {
    url = "https://prometheus.john-stream.com:9090/api/v1/write"
    tls_config {
      cert_file = "/etc/alloy/certs/cert.pem"
      key_file  = "/etc/alloy/certs/key.pem"
      ca_file   = "/etc/alloy/certs/root_ca.crt"
    }
  }
}

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

// discovery.relabel "logs_integrations_docker" {
//   targets = []
//   rule {
//     source_labels = ["__meta_docker_container_name"]
//     regex = "/(.*)"
//     target_label = "service_name"
//   }
// }

// loki.source.docker "default" {
//   host       = "unix:///var/run/docker.sock"
//   targets    = discovery.docker.linux.targets
//   labels     = {"platform" = "docker"}
//   relabel_rules = discovery.relabel.logs_integrations_docker.rules
//   forward_to = [loki.write.default.receiver]
// }

// loki.write "default" {
//   endpoint {
//     url = "http://loki:3100/loki/api/v1/push"
//   }
//   external_labels = {}
// }