all

Dockerfile

@@ -5,13 +5,16 @@ COPY pom.xml .
 COPY src ./src
 RUN mvn clean package -DskipTests
 
-# Runtime stage
-FROM eclipse-temurin:11-jre
+# Runtime stage - using headless JRE to reduce size
+FROM eclipse-temurin:11-jre-jammy
 WORKDIR /app
 
-# Install OpenCV native libraries
+# Install minimal OpenCV runtime libraries (not the full dev package)
 RUN apt-get update && \
-    apt-get install -y libopencv-dev && \
+    apt-get install -y --no-install-recommends \
+    libopencv-core4.5d \
+    libopencv-imgcodecs4.5d \
+    libopencv-dnn4.5d && \
     rm -rf /var/lib/apt/lists/*
 
 # Copy the JAR file