Try It Out
In this example we will deploy Alertmanager on a Kubernetes cluster using the Minimus Prometheus Alertmanager Helm chart. Alertmanager will handle deduplication, grouping, and routing of alerts from Prometheus and other monitoring systems.
Step 1: Start Cluster
If you have a cluster to work with, skip this step. Otherwise, start a Minikube cluster. Deployment instructions
Step 2: Create Namespace
Create a namespace:
kubectl create ns prometheus-alertmanager
Step 3: Deploy the Helm Chart
Deploy the Minimus Helm chart:
helm install my-prometheus-alertmanager oci://helm.mini.dev/prometheus-alertmanager \
--version 1.40.0 \
-n prometheus-alertmanager \
--wait
If you want to override the chart's defaults, go to the Values tab, save a copy locally with your changes. Deploy the chart with your overrides using -f values.yaml:
helm install my-prometheus-alertmanager oci://helm.mini.dev/prometheus-alertmanager \
--version 1.40.0 \
-f values.yaml \
-n prometheus-alertmanager \
--wait
Step 4: Verify Prometheus Alertmanager is Running
Confirm the chart deployed successfully and Alertmanager started:
kubectl get pods -n prometheus-alertmanager -l app.kubernetes.io/name=alertmanager
You should see output similar to:
NAME READY STATUS RESTARTS AGE
my-prometheus-alertmanager-0 1/1 Running 0 2m
Step 5: Test HTTP Endpoint
Port-forward to the Alertmanager service and verify it responds:
kubectl port-forward svc/my-prometheus-alertmanager -n prometheus-alertmanager 9093:9093
In a separate terminal, test the health endpoint:
curl -sf http://localhost:9093/-/healthy && echo "Alertmanager is healthy"
You should see:
You can also check the Alertmanager API status:
curl -sf http://localhost:9093/api/v2/status | jq .cluster.status
Expected output:
Step 6: Clean Up
Uninstall the chart and delete the namespace to remove all resources:
helm uninstall my-prometheus-alertmanager -n prometheus-alertmanager
kubectl delete namespace prometheus-alertmanager
Terms & Info
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prometheus-config-reloader v0.92.0