EventDebug/Dockerfile at master · AlphaSudo/EventDebug · GitHub

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# syntax=docker/dockerfile:1
### Multi-stage Dockerfile for EventLens
###
### Platform: the *build* stage uses $BUILDPLATFORM (native builder). For a registry image
### that must be linux/amd64 from any host, run:  docker build --platform linux/amd64 ...
###
### Gradle/npm: the host's ~/.gradle is NOT visible here. Cache mounts below reuse downloads
### between builds on the same machine (BuildKit / Podman 4+).

## 1) Build stage – compile and assemble the fat JAR
FROM --platform=$BUILDPLATFORM docker.io/library/eclipse-temurin:21-jdk AS build

# Install Node.js 20 LTS (needed by eventlens-ui for npm/Vite build)
RUN apt-get update && apt-get install -y curl && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && apt-get install -y nodejs && rm -rf /var/lib/apt/lists/*

WORKDIR /workspace

# Gradle wrapper and settings (better layer cache)
COPY settings.gradle.kts build.gradle.kts gradlew gradlew.bat ./
COPY gradle ./gradle

# Project sources
COPY eventlens-spi ./eventlens-spi
COPY eventlens-core ./eventlens-core
COPY eventlens-source-postgres ./eventlens-source-postgres
COPY eventlens-source-mysql ./eventlens-source-mysql
COPY eventlens-stream-kafka ./eventlens-stream-kafka
COPY eventlens-plugin-test ./eventlens-plugin-test
COPY eventlens-api ./eventlens-api
COPY eventlens-cli ./eventlens-cli
COPY eventlens-ui ./eventlens-ui
COPY eventlens-app ./eventlens-app
COPY eventlens.yaml.example ./eventlens.yaml

# Unix line endings + shaded JAR. --mount caches Gradle distro + deps and npm cache on the builder.
RUN --mount=type=cache,target=/root/.gradle \
    --mount=type=cache,target=/root/.npm \
    find . -type f \( -name "*.kts" -o -name "*.properties" -o -name "*.java" -o -name "*.kt" -o -name "*.xml" -o -name "*.yaml" -o -name "*.yml" -o -name "gradlew" \) -exec sed -i 's/\r$//' {} + \
    && chmod +x gradlew \
    && ./gradlew :eventlens-app:shadowJar -x test --no-daemon

## 2) Runtime stage – glibc-based JRE image for native-library compatibility
FROM docker.io/library/eclipse-temurin:21-jre-jammy AS base

ARG TARGETARCH

RUN groupadd --gid 1000 eventlens && \
    useradd --uid 1000 --gid eventlens --shell /bin/bash --create-home eventlens

WORKDIR /app

# Copy the fat JAR from the build stage
COPY --from=build --chown=eventlens:eventlens /workspace/eventlens-app/build/libs/eventlens.jar /app/eventlens.jar

# Default configuration path (can be overridden with volume mounts or env)
COPY --from=build --chown=eventlens:eventlens /workspace/eventlens.yaml /app/eventlens.yaml

# Health check dependency
RUN apt-get update && \
    apt-get install -y --no-install-recommends curl && \
    rm -rf /var/lib/apt/lists/*

USER eventlens

EXPOSE 9090

ENV EVENTLENS_CONFIG=/app/eventlens.yaml

HEALTHCHECK --interval=10s --timeout=5s --retries=3 --start-period=20s \
  CMD curl -sf http://localhost:9090/api/v1/health/live || exit 1

ENTRYPOINT ["java", \
  "--enable-preview", \
  "-XX:+UseG1GC", \
  "-XX:MaxRAMPercentage=75.0", \
  "-Djava.security.egd=file:/dev/urandom", \
  "-jar", "/app/eventlens.jar"]