counter registry_requests_total by method, path_class, status, repo, user, node
counter registry_pull_blob_bytes_total by repo, user, node
counter registry_pull_blob_seconds_total by repo, user, node
counter registry_push_upload_bytes_total by repo, user, node
counter registry_push_upload_seconds_total by repo, user, node

/"method":"([A-Z]+)"/ {
  method = $1
}
/"path":"([^"]+)"/ {
  path = $1
}
/"remote_address":"([^"]*)"/ {
  node = $1
}
/"remote_user":"([^"]*)"/ {
  user = $1
}
/"status":([0-9]{3})/ {
  status = $1
}
/"request_time":([0-9.]+)/ {
  request_time = $1
}
/"body_bytes_sent":([0-9]+)/ {
  body_bytes_sent = $1
}
/"upstream_range":"([^"]*)"/ {
  up_range = $1
}
/"docker_upload_uuid":"([^"]*)"/ {
  upload_uuid = $1
}
/"docker_content_digest":"([^"]*)"/ {
  digest = $1
}

/"path":"\/v2\/(.+?)\/(blobs|manifests|tags|_catalog)/ {
  repo = $1
}

/$/ {
  if repo == "" {
    repo = "unknown"
  }
  if user == "" {
    user = "anonymous"
  }
  if node == "" {
    node = "unknown"
  }
}

/"upstream_range":"([0-9]+)-([0-9]+)"/ {
  uploaded_bytes = int($2) + 1
}

/"method":"GET".*"\/v2\/.+\/blobs\/sha256:[a-f0-9]+"/ {
  registry_pull_blob_bytes_total[repo, user, node] += body_bytes_sent
  registry_pull_blob_seconds_total[repo, user, node] += request_time
  registry_requests_total[method, "pull_blob", status, repo, user, node]++
}

/"method":"PATCH".*"\/v2\/.+\/blobs\/uploads\/[a-f0-9-]+"/ {
  uploaded_bytes > 0 {
    registry_push_upload_bytes_total[repo, user, node] += uploaded_bytes
  }
  registry_push_upload_seconds_total[repo, user, node] += request_time
  registry_requests_total[method, "push_upload", status, repo, user, node]++
  uploaded_bytes = 0
}

/"method":"POST".*"\/v2\/.+\/blobs\/uploads\/"/ {
  registry_requests_total[method, "push_start", status, repo, user, node]++
}

/"method":"PUT".*"\/v2\/.+\/blobs\/uploads\/[a-f0-9-]+"/ {
  registry_requests_total[method, "push_commit", status, repo, user, node]++
}

/"method":"GET".*"\/v2\/.+\/manifests\/[^"]+"/ {
  registry_requests_total[method, "pull_manifest", status, repo, user, node]++
}

/"method":"PUT".*"\/v2\/.+\/manifests\/[^"]+"/ {
  registry_requests_total[method, "push_manifest", status, repo, user, node]++
}

/"path":"\/v2\/"/ {
  registry_requests_total[method, "v2_root", status, "none", user, node]++
}