meldestelle/backend/services/ping/Dockerfile
Stefan Mogeritsch f402fbaf19 refactor(infra): Restrukturierung Config-Ordner & Einführung von Docker-Profilen
Umfangreiches Refactoring der Projektkonfiguration zur klaren Trennung von Build-, Runtime- und Applikations-Logik.

Änderungen im Detail:
- Struktur: Neuorganisation des `config/` Verzeichnisses in logische Bereiche:
  - `config/docker`: Reine Infrastruktur-Configs (Postgres, Redis, Nginx, Monitoring).
  - `config/quality`: Statische Code-Analyse (Detekt, Lint).
  - `config/app`: Gemeinsame Spring-Boot-Konfigurationen.
- Docker Compose:
  - Einführung von Profilen (`infra`, `backend`, `ops`, `gui`, `tools`) für gezieltes Starten von Teilbereichen.
  - Anpassung aller Volume-Pfade auf die neue Struktur.
- Spring Boot Config:
  - Zentralisierung gemeinsamer Einstellungen (Datasource, Redis, JPA) in `config/app/base-application.yml`.
  - Parametrisierung der Hosts für nahtlosen Wechsel zwischen Docker und Localhost.
  - Bereinigung der service-spezifischen `application.yaml` Dateien (z.B. Ping-Service).
- Cleanup: Entfernen redundanter "Ghost-Files" (`versions.toml`, `central.toml`, `config/.env`), um eine echte Single Source of Truth (SSoT) zu gewährleisten.
2025-12-10 15:25:10 +01:00

189 lines
6.8 KiB
Docker

# syntax=docker/dockerfile:1.8
# ===================================================================
# Multi-stage Dockerfile for Meldestelle Ping Service
# Features: Security hardening, monitoring support, optimal caching, BuildKit cache mounts
# Version: 2.1.0 - Optimized and corrected version
# ===================================================================
# === CENTRALIZED BUILD ARGUMENTS ===
# Values sourced from docker/versions.toml and docker/build-args/
# Global arguments (docker/build-args/global.env)
ARG GRADLE_VERSION
ARG JAVA_VERSION
ARG BUILD_DATE
ARG VERSION
# Note: No runtime profiles as build ARGs
# Build stage: compile the ping-service JAR inside Docker
FROM gradle:${GRADLE_VERSION}-jdk${JAVA_VERSION}-alpine AS builder
# Re-declare build arguments for this stage
ARG VERSION
ARG BUILD_DATE
# Add metadata labels
LABEL stage=builder
LABEL service=ping-service
LABEL maintainer="Meldestelle Development Team"
LABEL version="${VERSION}"
LABEL build.date="${BUILD_DATE}"
WORKDIR /workspace
# Gradle optimizations for containerized builds (removed deprecated configureondemand)
ENV GRADLE_OPTS="-Dorg.gradle.caching=true \
-Dorg.gradle.daemon=false \
-Dorg.gradle.parallel=true \
-Dorg.gradle.workers.max=2 \
-Dorg.gradle.jvmargs=-Xmx2g \
-XX:+UseParallelGC \
-XX:MaxMetaspaceSize=512m"
# Set Gradle user home for better caching
ENV GRADLE_USER_HOME=/home/gradle/.gradle
# Copy gradle wrapper and configuration files first for optimal caching
COPY gradlew gradlew.bat gradle.properties settings.gradle.kts ./
COPY gradle/ gradle/
# Make gradlew executable (required on Linux/Unix systems)
RUN chmod +x gradlew
# Copy platform dependencies (changes less frequently)
COPY platform/ platform/
# Copy frontend/client directories (required by settings.gradle.kts)
COPY frontend/ frontend/
# Copy core directories (required by settings.gradle.kts)
COPY core/ core/
# Copy backend (includes services and infrastructure in new structure)
COPY backend/ backend/
# Copy docs directory (required by settings.gradle.kts)
COPY docs/ docs/
# Copy root build configuration
COPY build.gradle.kts ./
# Copy ping modules (changes most frequently) for both legacy and new structure
COPY backend/services/ping/ping-api/ backend/services/ping/ping-api/
COPY backend/services/ping/ping-service/ backend/services/ping/ping-service/
# Download and cache dependencies in a separate layer with build cache
RUN --mount=type=cache,target=/home/gradle/.gradle/caches \
--mount=type=cache,target=/home/gradle/.gradle/wrapper \
./gradlew :backend:services:ping:ping-service:dependencies --no-daemon --info
# Build the application with optimizations and build cache
RUN --mount=type=cache,target=/home/gradle/.gradle/caches \
--mount=type=cache,target=/home/gradle/.gradle/wrapper \
./gradlew :backend:services:ping:ping-service:bootJar --no-daemon --info
# ===================================================================
# Runtime stage: optimized JRE image for production
# ===================================================================
FROM eclipse-temurin:${JAVA_VERSION}-jre-alpine AS runtime
# Build arguments for runtime stage
ARG BUILD_DATE
ARG VERSION
ARG JAVA_VERSION
# Convert build arguments to environment variables
ENV JAVA_VERSION=${JAVA_VERSION} \
VERSION=${VERSION} \
BUILD_DATE=${BUILD_DATE}
# Add comprehensive metadata
LABEL service="ping-service" \
version="${VERSION}" \
description="Microservice demonstrating circuit breaker patterns and monitoring" \
maintainer="Meldestelle Development Team" \
java.version="${JAVA_VERSION}" \
build.date="${BUILD_DATE}" \
org.opencontainers.image.title="Ping Service" \
org.opencontainers.image.description="Spring Boot microservice with circuit breaker patterns" \
org.opencontainers.image.version="${VERSION}" \
org.opencontainers.image.created="${BUILD_DATE}"
# Build arguments for runtime configuration
ARG APP_USER=appuser
ARG APP_GROUP=appgroup
ARG APP_UID=1001
ARG APP_GID=1001
# Set working directory
WORKDIR /app
# Enhanced Alpine setup with security hardening
RUN apk update && \
apk upgrade && \
apk add --no-cache \
curl \
tzdata \
tini && \
rm -rf /var/cache/apk/* && \
addgroup -g ${APP_GID} -S ${APP_GROUP} && \
adduser -u ${APP_UID} -S ${APP_USER} -G ${APP_GROUP} -h /app -s /bin/sh && \
mkdir -p /app/logs /app/tmp /app/config && \
chown -R ${APP_USER}:${APP_GROUP} /app && \
chmod -R 750 /app
# Copy the built JAR from builder stage with proper ownership
COPY --from=builder --chown=${APP_USER}:${APP_GROUP} \
/workspace/backend/services/ping/ping-service/build/libs/*.jar app.jar
# Switch to non-root user
USER ${APP_USER}
# Expose application port and debug port
EXPOSE 8082 5005
# Enhanced health check with better configuration
HEALTHCHECK --interval=15s --timeout=3s --start-period=40s --retries=3 \
CMD curl -fsS --max-time 2 http://localhost:8082/actuator/health/readiness || exit 1
# Optimized JVM settings for Spring Boot microservice with Java 21
# Removed deprecated UseTransparentHugePages flag for better compatibility
ENV JAVA_OPTS="-XX:MaxRAMPercentage=75.0 \
-XX:+UseG1GC \
-XX:+UseStringDeduplication \
-XX:+UseContainerSupport \
-XX:G1HeapRegionSize=16m \
-XX:G1ReservePercent=25 \
-XX:InitiatingHeapOccupancyPercent=30 \
-XX:+AlwaysPreTouch \
-XX:+DisableExplicitGC \
-Djava.security.egd=file:/dev/./urandom \
-Djava.awt.headless=true \
-Dfile.encoding=UTF-8 \
-Duser.timezone=Europe/Vienna \
-Dspring.backgroundpreinitializer.ignore=true \
-Dmanagement.endpoints.web.exposure.include=health,info,metrics,prometheus \
-Dmanagement.endpoint.health.show-details=always \
-Dmanagement.prometheus.metrics.export.enabled=true"
# Spring Boot configuration
ENV SPRING_OUTPUT_ANSI_ENABLED=ALWAYS
ENV SERVER_PORT=8082
ENV LOGGING_LEVEL_ROOT=INFO
# Enhanced entrypoint with tini init system and conditional debug support
# Fixed memory cgroup path for better compatibility with different container runtimes
ENTRYPOINT ["tini", "--", "sh", "-c", "\
echo 'Starting Ping Service with Java ${JAVA_VERSION}...'; \
echo 'Service port: ${SERVER_PORT}'; \
MEMORY_LIMIT=$(cat /sys/fs/cgroup/memory.max 2>/dev/null || cat /sys/fs/cgroup/memory/memory.limit_in_bytes 2>/dev/null || echo 'unlimited'); \
echo \"Container memory limit: $MEMORY_LIMIT\"; \
if [ \"${DEBUG:-false}\" = \"true\" ]; then \
echo 'DEBUG mode enabled - remote debugging available on port 5005'; \
exec java ${JAVA_OPTS} -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005 -jar app.jar; \
else \
echo 'Starting Ping Service in production mode'; \
exec java ${JAVA_OPTS} -jar app.jar; \
fi"]