Prometheus CI installation activates/exposes service and serves GUI components

Problem to solve

As part of GitLab-managed-apps v2, GitLab will provide a template for each application to be installed in cluster via CI.

Intended users

developer, operator

Further details

Proposal

1. Similar to the template provided for ingress, create a template which will allow installation of Prometheus. ✅

2. Create an extension to the existing apply job to create an artifact that lists what helm applications are installed.

   • Parse that artifact in GitLab in order to update the list of applications installed for that cluster.
   • Scope: only Prometheus

Permissions and Security

Installation of the application will rely on setup of the cluster management project, which the cluster admin would have setup in advance.

What does success look like, and how can we measure that?

Similar to how other cluster apps are tracked in usage data installing through the CI process should increase the relevant counter as well.

Links / references

Status

• Prometheus can be managed using helmfile (done in gitlab-org/cluster-integration/cluster-applications!47 (merged))
• Prometheus collects metrics in the same way as the V1 managed app (done in gitlab-org/cluster-integration/cluster-applications!47 (merged))
• GitLab is aware of the prometheus application (see also #202002 (closed))
• GitLab can read metrics from prometheus and display them in Operations > Metrics
• GitLab can receive alerts from alertmanager
• GitLab can update alert configuration from the UI

Follow-up

See #202002 (closed)

This page may contain information related to upcoming products, features and functionality. It is important to note that the information presented is for informational purposes only, so please do not rely on the information for purchasing or planning purposes. Just like with all projects, the items mentioned on the page are subject to change or delay, and the development, release, and timing of any products, features, or functionality remain at the sole discretion of GitLab Inc.