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Prometheus · Grafana · Loki
Abstract data visualization with glowing purple and blue metric lines representing monitoring and observability dashboards
SRE · Observability · 2026Production Stack

Monitoring &
Observability Stack

Full-stack observability with Prometheus, Grafana, and Loki. Metrics, logs, and alerts unified into a single pane of glass for production visibility.

200+
Alert Rules
15+
Dashboards
< 1min
Alert Latency
30 days
Log Retention
01 — PILLARS

The Three Pillars of Observability

Metrics tell you something is wrong. Logs tell you what happened. Traces tell you where. Together, they give you full production visibility.

📊
Prometheus

Metrics

Numeric time-series data — CPU, memory, request rates, error rates, latency percentiles. The heartbeat of your system.

📋
Loki + Promtail

Logs

Structured and unstructured event records from every container. Queryable with LogQL for deep incident investigation.

📈
Grafana

Visualization

Unified dashboards connecting all data sources. From high-level SLO tracking to per-pod debug views.

02 — COMPONENTS

Stack Components

Prometheus
Metrics Collection

Time-series metrics scraping from all services, nodes, and Kubernetes components. Custom recording rules and alerting rules.

Grafana
Visualization & Dashboards

Rich dashboards for infrastructure, application, and business metrics. Unified view across Prometheus, Loki, and Tempo.

Loki
Log Aggregation

Horizontally scalable log aggregation. Promtail agents ship logs from all pods. LogQL queries for deep log analysis.

Alertmanager
Alert Routing

Deduplication, grouping, and routing of alerts to Slack, PagerDuty, and email. Silences and inhibition rules.

Promtail
Log Shipping

DaemonSet-deployed log shipper that tails container logs and forwards to Loki with Kubernetes metadata labels.

kube-state-metrics
K8s Metrics

Exposes Kubernetes object state as Prometheus metrics — deployments, pods, nodes, PVCs, and more.

03 — DASHBOARDS

Grafana Dashboards

Grafana · Kubernetes Cluster Overview
Live
CPU Usage
42%
last 5m
Memory
68%
last 5m
Pod Count
47
last 5m
Error Rate
0.02%
last 5m
Request Rate (RPS)
P99 Latency (ms)
Kubernetes Cluster Overview
Node CPU/MemoryPod restartsPVC usageNetwork I/O
Application Performance
Request rate (RPS)Error rate %P50/P95/P99 latencySaturation
Infrastructure Health
Disk I/ONetwork throughputLoad averageOOM events
Log Analytics
Error log rateLog volume by serviceException tracesAudit logs
04 — ALERTING

Alert Rules (Sample)

prometheus/rules/alerts.yaml
HighErrorRatecritical
rate(http_requests_total{status=~"5.."}[5m]) > 0.05
PodCrashLoopingwarning
rate(kube_pod_container_status_restarts_total[15m]) > 0
NodeMemoryPressurecritical
node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes < 0.1
HighLatencyP99warning
histogram_quantile(0.99, rate(http_duration_seconds_bucket[5m])) > 2