<%- if metrics_enabled and metrics_system %>
discovery.relabel "metrics" {
  targets = prometheus.exporter.unix.metrics.targets
  rule {
    target_label = "instance"
    replacement  = constants.hostname
  }
  rule {
    target_label = "job"
    replacement = string.format("%s-metrics", constants.hostname)
  }
}

prometheus.exporter.unix "metrics" {
  disable_collectors = ["ipvs", "btrfs", "infiniband", "xfs", "zfs"]
  enable_collectors = ["meminfo"]
  rootfs_path = "/rootfs"
  filesystem {
    fs_types_exclude     = "^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|tmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$"
    mount_points_exclude = "^/(dev|proc|run/credentials/.+|sys|var/lib/docker/.+)($|/)"
    mount_timeout    = "5s"
  }
  netclass {
    ignored_devices = "^(veth.*|cali.*|[a-f0-9]{15})$"
  }
  netdev {
    device_exclude = "^(veth.*|cali.*|[a-f0-9]{15})$"
  }
}

prometheus.scrape "metrics" {
  scrape_interval = "15s"
  targets    = discovery.relabel.metrics.output
  forward_to = [prometheus.remote_write.default.receiver]
}
<%- endif %>