📈 Prometheus + Grafana monitoring stack

Metrics scrape, dashboards, and alert rules — Compose or K8s. · ~50 min

Reviewed: ·Tested on: Kubernetes 1.29, Terraform 1.8, Ubuntu 22.04

If you're on Kubernetes 1.27 or older

  • Ingress: networking.k8s.io/v1 is required — v1beta1 removed in 1.22+
  • Pod Security: PodSecurityPolicy removed in 1.25 — use Pod Security Admission (PSA) labels
  • HPA v2 autoscaling/v2 is stable — check API version in manifests

If you're on Kubernetes 1.28

  • Sidecar containers (1.29+) change init-container ordering — review sidecar docs before upgrade
  • Verify metrics-server and HPA after control plane bump

If you're on Terraform 1.7 or older

  • S3 native locking (use_lockfile) differs from DynamoDB — don't mix backends mid-migration
  • Provider version constraints: run terraform init -upgrade after bump
  • terraform test (1.6+) replaces some external test harness patterns

1. Start with Compose template

Config →Guide →

2. Add scrape targets

# prometheus.yml
scrape_configs:
  - job_name: node
    static_configs:
      - targets: ['node-exporter:9100']
  - job_name: app
    static_configs:
      - targets: ['app:8080']
Guide →

3. Import Grafana dashboards

Dashboard ID 1860 (Node Exporter), 6417 (K8s) — or build from PromQL.

Guide →

4. Wire alerts to on-call

# alertmanager.yml route to PagerDuty/Slack
# PromQL examples: /snippets/#promql-error-rate
Guide →