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CNPEPlatform APIs and Self-Service CapabilitiesSingle nodeMedium

Operators: run Alertmanager through the Prometheus Operator

Scenario cnpe-api-003 · about 15 minutes · 8 points · 5 grader checks

Use the Prometheus Operator as a platform automation: declare an Alertmanager and a namespaced AlertmanagerConfig, and confirm the operator reconciled them into a running, configured instance.

  • operator
  • prometheus-operator
  • alertmanager
  • alertmanagerconfig
  • custom-resources
  • platform-automation

What you will practise

  • Drive an operator through its custom resources
  • Select AlertmanagerConfig objects with a label selector
  • Verify what the operator generated (StatefulSet, Service, live config)

Start this lab

With the CLI installed and signed in, this command provisions a single node cluster on your Mac, applies the scenario setup and prints the task below.

goldenkube start cnpe-api-003

Task

The task text exactly as the CLI shows it. Solve it on the cluster, then run goldenkube submit.

The Prometheus Operator runs in namespace "monitoring" and watches all namespaces. 1. Create an Alertmanager "main" in "monitoring" with 1 replica, the image quay.io/prometheus/alertmanager:v0.34.1, a memory request of 64Mi, and an alertmanagerConfigSelector that selects AlertmanagerConfig objects labelled alertmanagerConfig=main. 2. Create an AlertmanagerConfig "team-routes" in "monitoring" with that label: a route to the receiver "team-null" grouped by alertname, and the receiver "team-null" without any integration. 3. The operator must reconcile both: the Alertmanager StatefulSet is ready and the running Alertmanager has the "team-null" receiver loaded.

Requirements and details

Certification
CNPE · Certified Cloud Native Platform Engineer
Domain
Platform APIs and Self-Service Capabilities
Difficulty
Medium
Cluster topology
Single node
Cluster features
None beyond the base cluster
Recommended time
15 minutes
Points
8
Grader checks
5
Kubernetes version
1.35
Minimum CLI version
0.1.0
Scenario version
1
Published

Grading runs locally: 5 state checks read your cluster when you submit; the scenario passes when every check passes. Hints, the reference solution and the check definitions are available only inside the CLI, not on this page.

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Independent community project, not affiliated with or endorsed by CNCF or The Linux Foundation. Lab results are practice feedback, not an exam score.