kubeeventjava/Dockerfile25 at main · wlanboy/kubeeventjava · GitHub

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# ============================
# 1. Build Stage (Java 25)
# ============================
FROM registry.access.redhat.com/ubi10/openjdk-25:latest AS build

WORKDIR /app

RUN mkdir -p /app/config /app/data && \
    touch /app/config/.keep /app/data/.keep && \
    chmod -R g+w /app/config /app/data

COPY pom.xml .

RUN --mount=type=cache,target=/root/.m2 mvn -q -DskipTests dependency:go-offline

COPY src ./src

RUN --mount=type=cache,target=/root/.m2 mvn -q -DskipTests package

# ============================
# 2. Runtime Stage (Java 25)
# ============================
FROM registry.access.redhat.com/ubi10/openjdk-25-runtime:latest

# OCI-konforme Labels
LABEL org.opencontainers.image.title="KubeEvent Java" \
      org.opencontainers.image.description="Kubernetes Event Watcher and Dashboard" \
      org.opencontainers.image.version="0.0.1-SNAPSHOT" \
      org.opencontainers.image.vendor="wlanboy" \
      org.opencontainers.image.source="https://github.com/wlanboy/kubeeventjava" \
      org.opencontainers.image.licenses="MIT" \
      org.opencontainers.image.base.name="eclipse-temurin:25-jre"

WORKDIR /app

USER 185

COPY --from=build --chown=185:0 /app/config /app/config
COPY --from=build --chown=185:0 /app/data /app/data

COPY --from=build --chown=185:185 /app/target/kubeevent-0.0.1-SNAPSHOT.jar app.jar

COPY --chown=185:185 containerconfig/application.properties /app/config/application.properties

EXPOSE 8080

ENTRYPOINT ["java", \
  "-Djava.security.egd=file:/dev/./urandom", \
  "-XX:MaxRAMPercentage=50", \
  "-XX:InitialRAMPercentage=30", \
  "-XX:+UseG1GC", \
  "-XX:MaxGCPauseMillis=200", \
  "-XX:+ExplicitGCInvokesConcurrent", \
  "-XX:+ExitOnOutOfMemoryError", \
  "-Dspring.config.location=file:/app/config/application.properties", \
  "-jar", "app.jar"]