Plugin System

Firefly plugins carry optional capabilities such as metrics, alerts, audit extensions, and future protocols. The lifecycle lives in plugins/plugin-api.

Plugin API

public interface FireflyPlugin extends AutoCloseable {
    String id();

    void start(FireflyPluginContext context);
}

Plugins read optional runtime capabilities from FireflyPluginContext:

FireflyPluginContext context = FireflyPluginContext.builder()
        .jobRepository(jobRepository)
        .nodeRegistry(nodeRegistry)
        .executorRegistry(executorRegistry)
        .build();

Enable Plugins

firefly.plugins=metrics-prometheus,acme-alerts

External plugins implement FireflyPlugin and expose a JDK SPI descriptor:

META-INF/services/com.firefly.plugin.FireflyPlugin

Netty is the default Executor transport, not a regular feature plugin.