RHACM OpenTelemetry addon

Overview

This project is a proof of concept for Red Hat OpenShift Advanced Cluster Administration. It demonstrates the installation and configuration of the OpenTelemetry Collector provided by Red Hat, in a Hub and Spoke cluster setup. This setup involves creating one OpenTelemetry Collector in each spoke cluster that forwards data to a central OpenTelemetry Collector in the hub cluster.

flowchart TD
    subgraph Spoke cluster
    A[OTEL Collector] 
    end
    subgraph Hub OTEL Cluster
    D[OTEL Collector] 
    end
    A --> |Traces|D

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Features

• OpenTelemetry Collector Installation: Automates the deployment of the OpenTelemetry Collector Build by Red Hat in both Hub and Spoke clusters.
• Cluster Configuration: Configures each spoke cluster's OpenTelemetry Collector to send data to the central collector in the hub cluster.
• OpenShift Route Exposure: Exposes the OpenTelemetry Collector from the Hub Cluster via an OpenShift Route for accessible monitoring and management.
• Certificate generation: Generation and configuation of certificates to communicate and authenticate hte OpenTelemetry Collectors.

Warning

Some of those features are not performed directly by the addon. That can be done in the future if needed but, since this is just a PoC, the current approach is fine.

Prerequisites

• 1 Red Hat OpenShift Cluster connected with RHACM installed
• 1 Red Hat OpenShift Cluster added as spoke cluster whose name is cluster1.

Installation

1. Clone the repository.
2. Change the enpoint field in cmd/manifests/otel.yaml to the URL where the collector will be available in your Hub cluster.
3. Run make demo IMG=<image name>.