fixing(gradle)

dockerfiles/services/ping-service/Dockerfile

@@ -1,14 +1,13 @@
-# syntax=docker/dockerfile:1.7
+# syntax=docker/dockerfile:1.8
 
 # ===================================================================
 # Optimized Dockerfile for Spring Boot Ping Service
-# Features: Multi-stage build, security hardening, monitoring support
+# Features: Multi-stage build, security hardening, monitoring support, enhanced caching
 # ===================================================================
 
 # Build arguments for flexibility
 ARG GRADLE_VERSION=8.14
 ARG JAVA_VERSION=21
-ARG ALPINE_VERSION=3.19
 ARG SPRING_PROFILES_ACTIVE=default
 
 # Build stage: compile the ping-service JAR inside Docker
@@ -42,11 +41,15 @@ COPY build.gradle.kts ./
 COPY temp/ping-service/build.gradle.kts temp/ping-service/
 COPY temp/ping-service/src/ temp/ping-service/src/
 
-# Download and cache dependencies in a separate layer
-RUN ./gradlew :temp:ping-service:dependencies --no-daemon --info
+# 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 :temp:ping-service:dependencies --no-daemon --info
 
-# Build the application with optimizations
-RUN ./gradlew :temp:ping-service:bootJar --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 :temp:ping-service:bootJar --no-daemon --info \
     -Pspring.profiles.active=${SPRING_PROFILES_ACTIVE}
 
 # ===================================================================
@@ -54,6 +57,10 @@ RUN ./gradlew :temp:ping-service:bootJar --no-daemon --info \
 # ===================================================================
 FROM eclipse-temurin:${JAVA_VERSION}-jre-alpine AS runtime
 
+# Build arguments for runtime stage
+ARG BUILD_DATE
+ARG SPRING_PROFILES_ACTIVE=default
+
 # Add comprehensive metadata
 LABEL service="ping-service" \
       version="1.0.0" \
@@ -61,7 +68,7 @@ LABEL service="ping-service" \
       maintainer="Meldestelle Development Team" \
       java.version="${JAVA_VERSION}" \
       spring.profiles.active="${SPRING_PROFILES_ACTIVE}" \
-      build.date="${BUILD_DATE:-$(date -u +'%Y-%m-%dT%H:%M:%SZ')}"
+      build.date="${BUILD_DATE}"
 
 # Build arguments for runtime configuration
 ARG APP_USER=appuser
@@ -72,21 +79,16 @@ ARG APP_GID=1001
 # Set working directory
 WORKDIR /app
 
-# Update Alpine packages and install required tools
+# Update Alpine packages, install tools, create user and directories in one layer
 RUN apk update && \
     apk upgrade && \
     apk add --no-cache \
         curl \
-        jq \
         tzdata && \
-    rm -rf /var/cache/apk/*
-
-# Create non-root user with specific UID/GID for better security
-RUN addgroup -g ${APP_GID} -S ${APP_GROUP} && \
-    adduser -u ${APP_UID} -S ${APP_USER} -G ${APP_GROUP} -h /app -s /bin/sh
-
-# Create required directories with proper permissions
-RUN mkdir -p /app/logs /app/tmp && \
+    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 && \
     chown -R ${APP_USER}:${APP_GROUP} /app
 
 # Copy the built JAR from builder stage with proper ownership
@@ -103,41 +105,33 @@ EXPOSE 8082 5005
 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 3.x with monitoring support
-ENV JAVA_OPTS_BASE="-XX:MaxRAMPercentage=80.0 \
+# Optimized JVM settings for Spring Boot 3.x with Java 21 and monitoring support
+ENV JAVA_OPTS="-XX:MaxRAMPercentage=80.0 \
     -XX:+UseG1GC \
     -XX:+UseStringDeduplication \
     -XX:+UseContainerSupport \
-    -XX:+OptimizeStringConcat \
-    -XX:+UseCompressedOops \
     -Djava.security.egd=file:/dev/./urandom \
-    -Dspring.jmx.enabled=false \
     -Djava.awt.headless=true \
     -Dfile.encoding=UTF-8 \
-    -Duser.timezone=Europe/Vienna"
-
-# Monitoring and observability settings
-ENV JAVA_OPTS_MONITORING="-Dmanagement.endpoints.web.exposure.include=health,info,metrics,prometheus \
+    -Duser.timezone=Europe/Vienna \
+    -Dmanagement.endpoints.web.exposure.include=health,info,metrics,prometheus \
     -Dmanagement.endpoint.health.show-details=always \
     -Dmanagement.metrics.export.prometheus.enabled=true"
 
-# Development/debugging options (enabled via environment variables)
-ENV JAVA_OPTS_DEBUG="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005"
-
-# Combined JAVA_OPTS (debug options only applied if DEBUG=true)
-ENV JAVA_OPTS="${JAVA_OPTS_BASE} ${JAVA_OPTS_MONITORING}"
-
 # Spring Boot configuration
 ENV SPRING_OUTPUT_ANSI_ENABLED=ALWAYS \
     SPRING_PROFILES_ACTIVE=${SPRING_PROFILES_ACTIVE} \
     SERVER_PORT=8082 \
     LOGGING_LEVEL_ROOT=INFO
 
-# Optimized entrypoint with conditional debug support
+# Enhanced entrypoint with conditional debug support and better logging
 ENTRYPOINT ["sh", "-c", "\
+    echo 'Starting ping-service with Java ${JAVA_VERSION}...'; \
+    echo 'Active Spring profiles: ${SPRING_PROFILES_ACTIVE}'; \
     if [ \"${DEBUG:-false}\" = \"true\" ]; then \
-        echo 'Starting application in DEBUG mode on port 5005...'; \
-        exec java ${JAVA_OPTS} ${JAVA_OPTS_DEBUG} -jar app.jar; \
+        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 application in production mode'; \
         exec java ${JAVA_OPTS} -jar app.jar; \
     fi"]