metrics_server

Outline Metrics Server

The Outline Metrics Server is a Google App Engine project that writes feature and connections metrics to BigQuery, as reported by opted-in Outline servers.

API

Endpoints

The metrics server deploys two services: dev, used for development testing and debugging; and prod, used for production metrics. The dev environment is deployed to https://dev.metrics.getoutline.org; the prod environment is deployed to https://prod.metrics.getoutline.org. Each environment posts metrics to its own BigQuery dataset (see config_[dev|prod].json).

URLs

The metrics server supports two URL paths:

• POST /connections: report server data usage broken down by user.

  {
    serverId: string,
    startUtcMs: number,
    endUtcMs: number,
    userReports: [{
        countries: string[],
        asn: number,
        bytesTransferred: number,
        tunnelTimeSec: number,
    }]
  }
  

• POST /features: report feature usage.

  {
      serverId: string,
      serverVersion: string,
      timestampUtcMs: number,
      dataLimit: {
          enabled: boolean
          perKeyLimitCount: number
      }
  }
  

Requirements

• Google Cloud SDK

Build

task metrics_server:build

Run

Run a local development metrics server:

task metrics_server:start

Deploy

• Authenticate with gcloud:

  gcloud auth login

• To deploy to dev:

  task metrics_server:deploy:dev

• To deploy to prod:

  task metrics_server:deploy:prod

  Once deployed, you will need to manually migrate all traffic to the new version via the Google Cloud console.

Test

• Unit test

  task metrics_server:test

• Integration test

  task metrics_server:integration_test