\n\n# Prometheus Pushgateway Helm Chart\n\nPrometheus Pushgateway is an intermediary service that allows ephemeral and batch jobs to expose their metrics to Prometheus. The Prometheus Pushgateway Helm chart automates deployment and configuration of Prometheus Pushgateway in Kubernetes clusters using Minimus images.\n\n\n## {{icon-list-search}} Prerequisites\n\n- A subscription to the Minimus images included in the chart\n- A running Kubernetes cluster (v1.21 or higher is recommended)\n- `kubectl` installed and configured\n- Helm v3.8 or higher for OCI support ([Installation instructions](https://helm.sh/docs/intro/install/))\n- Cluster Admin privileges\n\n

\n\n---\n\n

\n\n## {{icon-rocket}}Try It Out\n\nIn this example we will deploy Prometheus Pushgateway on a Kubernetes cluster using the Minimus Prometheus Pushgateway Helm chart. Pushgateway provides an HTTP endpoint where batch and service-level metrics can be pushed and then scraped by Prometheus.\n\n

\n\n### Step 1: Start Cluster\n\n

\n\nIf you have a cluster to work with, skip this step. Otherwise, start a Minikube cluster. [Deployment instructions](https://minikube.sigs.k8s.io/docs/start/?arch=%2Flinux%2Fx86-64%2Fstable%2Fbinary+download)\n\n

\n\n### Step 2: Create Secret\n\n

\n\nFirst, create a namespace:\n\n```\nkubectl create ns prometheus-pushgateway\n```\n\nNext, create a Kubernetes secret for the Minimus token so Helm will be able to pull images from the Minimus registry:\n\n```\nkubectl create secret docker-registry minimus-registry \\\n --docker-server=reg.mini.dev \\\n --docker-username=minimus \\\n --docker-password={{pull-token}} \\\n --namespace=prometheus-pushgateway\n```\n\n

\n\n### Step 3: Deploy the Helm Chart\n\n

\n\nDeploy the Minimus Helm chart:\n\n```\nhelm install my-prometheus-pushgateway {{oci-url}} \\\n -n prometheus-pushgateway \\\n --wait\n```\n\nIf 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`:\n\n```\nhelm install my-prometheus-pushgateway {{oci-url}} \\\n -f values.yaml \\\n -n prometheus-pushgateway \\\n --wait\n```\n\n

\n\n### Step 4: Verify Prometheus Pushgateway is Running\n\n

\n\nConfirm the chart deployed successfully and Pushgateway started:\n\n```\nkubectl get pods -n prometheus-pushgateway\n```\n\nYou should see output similar to:\n\n```\nNAME READY STATUS RESTARTS AGE\nmy-prometheus-pushgateway-xxxxxxxxx-xxxxx 1/1 Running 0 2m\n```\n\n

\n\n### Step 5: Test HTTP Endpoint\n\n

\n\nForward the Pushgateway service port to your local machine:\n\n```\nkubectl port-forward svc/my-prometheus-pushgateway 9091:9091 -n prometheus-pushgateway\n```\n\nIn another terminal, verify the health endpoint responds:\n\n```\ncurl -sf http://localhost:9091/-/healthy\n```\n\nYou should see:\n\n```\nOK\n```\n\nYou can also check the metrics endpoint:\n\n```\ncurl -sf http://localhost:9091/metrics\n```\n\nThis should return Prometheus-formatted metrics output.\n\n

\n\n### Step 6: Clean Up\n\n

\n\nUninstall the chart and delete the namespace to remove all resources:\n\n```bash\nhelm uninstall my-prometheus-pushgateway -n prometheus-pushgateway\nkubectl delete namespace prometheus-pushgateway\n```\n\n

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