fixing(gateway)

temp/ping-service/Dockerfile

@@ -1,18 +1,29 @@
 # syntax=docker/dockerfile:1
 
 # Build stage: compile the ping-service JAR inside Docker
-FROM gradle:8.7-jdk17-alpine AS builder
+FROM gradle:8.14-jdk21-alpine AS builder
 WORKDIR /workspace
 
-# Copy the entire repository (simplest and most robust for multi-module setups)
-# This allows building the ping-service even if it depends on shared build files or platforms.
-COPY . .
+# Enable Gradle build cache and daemon for faster builds
+ENV GRADLE_OPTS="-Dorg.gradle.caching=true -Dorg.gradle.daemon=false"
+
+# Copy gradle files first for better layer caching
+COPY gradle/ gradle/
+COPY gradlew gradlew.bat gradle.properties settings.gradle.kts ./
+COPY build.gradle.kts ./
+COPY platform/ platform/
+
+# Copy only necessary source files for the ping-service and its dependencies
+COPY temp/ping-service/ temp/ping-service/
+
+# Download dependencies first (better caching)
+RUN gradle :temp:ping-service:dependencies --no-daemon
 
 # Build only the ping-service artifact
 RUN gradle :temp:ping-service:bootJar --no-daemon
 
 # Runtime stage: slim JRE image to run the service
-FROM eclipse-temurin:17-jre-alpine
+FROM eclipse-temurin:21-jre-alpine
 
 # Set working directory
 WORKDIR /app
@@ -22,20 +33,28 @@ RUN apk add --no-cache curl
 
 # Create a non-root user for better security
 RUN addgroup -S app && adduser -S app -G app
-USER app
 
 # Copy the built JAR from the builder stage
-COPY --from=builder /workspace/temp/ping-service/build/libs/*.jar app.jar
+COPY --from=builder --chown=app:app /workspace/temp/ping-service/build/libs/*.jar app.jar
+
+# Switch to non-root user
+USER app
 
 # Expose application port
 EXPOSE 8082
 
-# Health check against the ping endpoint
-HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
-  CMD curl -fsS http://localhost:8082/ping || exit 1
+# Health check against the actuator health endpoint
+HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \
+  CMD curl -fsS http://localhost:8082/actuator/health || exit 1
 
-# JVM options can be overridden at runtime via JAVA_OPTS env
-ENV JAVA_OPTS="-XX:MaxRAMPercentage=75.0 -XX:+UseStringDeduplication"
+# Enhanced JVM options for containerized Spring Boot applications
+ENV JAVA_OPTS="-XX:MaxRAMPercentage=75.0 \
+  -XX:+UseStringDeduplication \
+  -XX:+UseG1GC \
+  -XX:+UseContainerSupport \
+  -XX:+OptimizeStringConcat \
+  -Djava.security.egd=file:/dev/./urandom \
+  -Dspring.jmx.enabled=false"
 
 # Run the application
 ENTRYPOINT ["sh", "-c", "exec java $JAVA_OPTS -jar app.jar"]