auth0-simple-exporter

A simple Prometheus exporter for Auth0 log events, which allows you to collect metrics from Auth0 and expose them in a format that can be consumed by Prometheus.

Motivation

It can be difficult to monitor Auth0 tenant events on a Prometheus stack, especially compared to other monitoring systems such as Datadog. This Prometheus exporter aims to simplify this, making it easier to expose tenant events.

Prerequisites

• Auth0 account.
• Auth0 tenant management API client credentials.
  • Required Grants: read:users or read:user_idp_tokens,read:clients or read:client_keys,read:logs
• (Optional) Auth0 tenant management API static token.

Super TL;DR

If you just want to try the exporter locally without installation, you can do so by using Nix.

nix run github:tfadeyi/auth0-simple-exporter export -- --tls.disabled

TL;DR

The quickest way to install the exporter is through Helm, make sure you have your Auth0 credentials at hand.

export TOKEN="< auth0 management API static static token >"
export DOMAIN="< auth0 tenant domain >"

  # Installing by passing in secret directly
  helm repo add auth0-exporter https://tfadeyi.github.io/auth0-simple-exporter
  helm upgrade prod auth0-exporter/auth0-exporter --install --create-namespace -n auth0-exporter \
  --set auth0.domain="$DOMAIN" --set auth0.token="$TOKEN" --set exporter.tls.disabled=true

This will install the exporter running with TLS disabled.

Installation

• Download Pre-built Binaries

  Binaries can be downloaded from Releases page.

  • Download and run exporter's binary with TLS disabled.

    export TOKEN="< auth0 management API static static token >"
    export DOMAIN="< auth0 tenant domain >"
    
    curl -LJO https://github.com/tfadeyi/auth0-simple-exporter/releases/download/v0.0.2/auth0-simple-exporter-linux-amd64.tar.gz && \
    tar -xzvf auth0-simple-exporter-linux-amd64.tar.gz && \
    cd auth0-simple-exporter-linux-amd64
    
    ./auth0-simple-exporter export --tls.disabled
    

• Docker

  The recommended way to get the Docker Image is to pull the prebuilt image from the project's Github Container Registry.

  $ docker pull ghcr.io/tfadeyi/auth0-simple-exporter:latest
  

  To use a specific version, you can pull a versioned tag.

  $ docker pull ghcr.io/tfadeyi/auth0-simple-exporter:[TAG]
  

• Helm

  This shows a simple installation of the exporter helm chart, running with TLS disabled.

  export TOKEN="< auth0 management API static static token >"
  export DOMAIN="< auth0 tenant domain >"
  

  # Installing by passing in secret directly
  helm repo add auth0-exporter https://tfadeyi.github.io/auth0-simple-exporter
  helm upgrade --install --create-namespace -n auth0-exporter auth0-exporter/auth0-exporter \
    --set auth0.domain="$DOMAIN" --set auth0.token="$TOKEN" \
    --set exporter.tls.disabled=true
  

  More info on the helm deployment can be found here.

• Build from source

  From the repository root directory run:

  make build
  # or for multiple systems
  make build-all-platforms
  

• Nix

  The exporter can be used via Nix.

  nix run github:tfadeyi/auth0-simple-exporter export -- --tls.disabled
  

• Octopus Deploy

  You can use Octopus Deploy to the deploy the exporter to your cluster. Simply add the following as the Feed URL.

  https://tfadeyi.github.io/auth0-simple-exporter
  

Usage

Usage:
  exporter export [flags]

Flags:
      --auth0.client-id string       Auth0 management api client-id.
      --auth0.client-secret string   Auth0 management api client-secret.
      --auth0.domain string          Auth0 tenant's domain. (i.e: <tenant_name>.eu.auth0.com).
      --auth0.from string            Point in time from were to start fetching auth0 logs. (format: RFC3339) (default Now)
      --auth0.token string           Auth0 management api static token. (the token can be used instead of client credentials).
  -h, --help                         help for export
      --log.level string             Exporter log level (debug, info, warn, error). (default "warn")
      --namespace string             Exporter's namespace.
      --pprof.enabled                Enabled pprof profiling on the exporter on port :6060. (help: https://jvns.ca/blog/2017/09/24/profiling-go-with-pprof/).
      --pprof.listen-address int     Port where the pprof webserver will listen on. (default 6060)
      --probe.listen-address int     Port where the probe webserver will listen on. (default 8081)
      --probe.path string            URL Path under which to expose the probe metrics. (default "probe")
      --subsystem string             Exporter's subsystem.
      --tls.auto                     Allow the exporter to use autocert to renew its certificates with letsencrypt.
                                     (Can only be used if the exporter is publicly accessible by the internet)
      --tls.cert-file string         Path to the PEM encoded certificate for the auth0-exporter metrics to serve.
      --tls.disabled                 Run exporter without TLS. TLS is enabled by default.
      --tls.hosts strings            The different allowed hosts for the exporter. Only works when --tls.auto has been enabled.
      --tls.key-file string          Path to the PEM encoded key for the auth0-exporter metrics server.
      --web.listen-address int       Port where the exporter webserver will listen on. (default 8080)
      --web.path string              URL Path under which to expose the collected auth0 metrics. (default "metrics")

Environment variables:

• TOKEN, Auth0 management API static token.
• DOMAIN, Auth0 tenant domain.
• CLIENT_SECRET, Auth0 management API client-secret, (not required if setting the token).
• CLIENT_ID, Auth0 management API client-id, (not required if setting the token).

Example queries

Monitor the percentage of failed logins in the Auth0 tenant:

(tenant_failed_login_operations_total / tenant_login_operations_total) * 100

Monitor the number current logged-in users for a client application in Auth0 tenant:

(tenant_login_operations_total{client="ChatGPT"} - tenant_failed_login_operations_total{client="ChatGPT"}) - (tenant_logout_operations_total{client="ChatGPT"} - tenant_failed_logout_operations_total{client="ChatGPT"})

Metrics

Signup

Login

Logout

The other exposed metrics can be found here.

Known Issues

• API Rate Limits

  When the Prometheus scraping job interval is too frequent the exporter might encounter api-rate limit from Auth0. To mitigate this try increasing the scraping interval for the job.

• Not all logs/events are available

  Currently, not all logs/events from Auth0 are exposed, if a metric is not exposed, feel free to open a feature request.

Prometheus

Example Prometheus configuration for the exporter. Replace AUTH0-EXPORTER-HOSTNAME with your instance's hostname.

scrape_configs:
  - job_name: auth0_exporter
    metrics_path: /metrics
    static_configs:
      - targets: ['<<AUTH0-EXPORTER-HOSTNAME>>:9301']
    relabel_configs:
      - source_labels: [ __address__ ]
        target_label: __param_target
      - source_labels: [ __param_target ]
        target_label: instance
      - target_label: __address__
        replacement: <<AUTH0-EXPORTER-HOSTNAME>>:9301

Development

Makefile

Similar to other Golang projects, this projects makes use of make for building and testing the source code.

Nix

Before start development, add your tenant's Auth0 credentials to the env-dev.sh, this help when developing using Nix. Once the credentials are added, you can start the development environment by:

$ source env-dev.sh
$ develop

This will boot up a Nix devshell with the need tools and information.

Contributing

Everyone is welcome to contribute to the project.

Please see CONTRIBUTING.md for information on how to get started.

Feedback is always appreciated, whether it's a bug or feature request, feel free to open an issue using one of the templates.

License

Apache 2.0, see LICENSE.md.