StatLite 0.4.0: Quarkus and Micrometer support

[ejboy]

StatLite is a lightweight, self-hosted monitoring dashboard for small applications and servers. Version 0.4.0 expands its framework support with Quarkus monitoring and Micrometer Prometheus collection for Spring Boot.

What’s new in 0.4.0

Quarkus monitoring

StatLite can now monitor Quarkus applications through their Micrometer Prometheus/OpenMetrics endpoint:

targets:
  - name: "orders"
    type: "quarkus"
    url: "http://localhost:9000/q/metrics"

The Quarkus integration normalizes request, latency, JVM, process, and restart metrics for the existing StatLite dashboard. SmallRye Health and datasource status are supported when the application exposes them.

Quarkus applications can also be discovered with:

statlite inspect --type quarkus 'http://localhost:9000'

Spring Micrometer support

Spring targets can now collect metrics from Micrometer’s Prometheus endpoint as well as Actuator JSON.

The source can be selected explicitly, or left on automatic selection:

targets:
  - name: "app"
    type: "spring"
    url: "http://localhost:8080/actuator"
    metrics_source: "auto"

auto prefers a compatible Prometheus/OpenMetrics endpoint and falls back to Actuator metrics when needed. The previous actuator_base_url configuration remains supported as a deprecated compatibility alias.

Other improvements

• Added --no-poll mode for viewing existing SQLite history without contacting monitored applications.
• Added SQLite schema version tracking.
• Improved metric normalization, restart handling, idle-application behavior, event folding, dashboard status presentation, and startup diagnostics.
• Improved application inspection and configuration guidance.

Internal certification

As part of the 0.4.0 release process, we ran our internal certification suite against the release-style build.

The representative runs passed for:

• Spring Boot 3.5.5 and 4.0.8, including Actuator, Prometheus, and deprecated-configuration compatibility.
• Quarkus 3.39.1 with Java 21.
• SQLite upgrade and historical-data compatibility testing.
• Long-history dashboard stress testing under sustained polling load.

Detailed certification reports are maintained in our internal quality-control workspace.

Try it

docker run --rm \
  -p 127.0.0.1:9090:9090 \
  ghcr.io/pvrlabs/statlite:latest

Open http://127.0.0.1:9090. StatLite monitors itself by default, so the dashboard starts with live data.

Learn more

• StatLite on GitHub
• StatLite 0.4.0 release
• Documentation and installation
• Complete changelog