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Prometheus Integration for Hasura Cloud

Introduction

:::caution Deprecation

Hasura Cloud observability integrations are deprecated in favour of using OpenTelemetry exporter to get advanced traces, metrics and logs.

:::

You can export metrics of your Hasura Cloud project to Prometheus. This can be configured on the integrations tab on the project's setting page.

:::info Note

For Hasura Cloud projects, the Prometheus Integration is only available on the Standard (pay-as-you-go) tier and above.

:::

Configure Prometheus integration

Navigate to the integrations tab on project settings page to find Prometheus integration.

Enter the Namespace and label values to be associated to the exported metrics and click on <em>Connect Integration</em>.

Prometheus instance configuration

The Prometheus instance(Agent) needs to be configured with Basic Auth mode with Project ID as username and the generated Access token as Password. The Connection URL is needed to configure the Scrape Target rule.

Access Token

The Access Token is generated once the Integration is created. The token is showed only once and cannot be retrieved again. Access token is used as the password for Basic Authentication by the Prometheus Agent.

The token can be re-generated from the Configuration Panel of the Integration. This action is permanent and cannot be reversed.

<Thumbnail src="/img/observability/prometheus-regenerate-token.png" alt="Prometheus Access Token Regeneration" width="1146px" />

Connection URL

This is the secured webhook URL which exposes the Project Metrics in the prometheus compatible format. It has 3 parts namely scheme, host name and metrics_path. For example, if the connection URL is https://prometheus-exporter.pro.hasura.io/metrics, then the scheme is https, host name (This includes sub-domains as well) is prometheus-exporter.pro.hasura.io and metrics_path is /metrics.

Project ID

The Project ID is used as the Username for the Basic Authentication by the Prometheus agent.

The following YAML template can be used as the config file to establish connectivity with the exposed Integration.

global:
  scrape_interval: 60s
scrape_configs:
  - job_name: 'hasura_prometheus_exporter'
    scrape_interval: 60s ## Recommended scrape interval is 60s
    metrics_path: '/metrics' ## Replace with metrics Path of the connection URL
    scheme: 'https' ## Replace with the scheme of the connection URL
    basic_auth:
      username: 'd01c60e1-1b11-564d-bb09-0a39e3e41b05' ## Replace with project ID
      password: 'IrhO3GlR8oXTfsdfdsNs8Nj' ## Replace with Access Token
    static_configs:
      - targets: ['prometheus-exporter.pro.hasura.io'] ## Replace with the host name of the connection URL

Checking the status of the integration

The green/red dot signifies the status of the integration. Green signifies successful exporting of metrics to Prometheus. When metrics are successfully exported, Last Exported is continuously updated, indicating the timestamp of the last metric successfully exported to your Prometheus Instance.

<Thumbnail src="/img/observability/prometheus-configure-done.png" alt="Prometheus Integration successfully configured" width="1146px" />

In case there is an error while exporting metrics to Prometheus, the dot is red and the error message is displayed right below it.

<Thumbnail src="/img/observability/prometheus-configure-fail.png" alt="Prometheus integration Pull failed" width="1146px" />

Metrics details

The integration exports the following five metrics to your Prometheus Instance:

:::info Note

If average_requests_per_minute is 0 (Which means no incoming requests in the Last one minute), average_execution_time is reported as 0 and success_rate is reported as 1 to avoid NaN values in Prometheus.

:::

:::info Note

If Namespace and Labels are configured (Optional), the format of the metric identifier is namespace_metricName{key1=value1, key2=value2}

:::

View metrics

The metrics can be queried from the Prometheus Dashboard (or using tools like Grafana)