From 15704fa7b8d9b0753f64cb7d4501372529cb76fb Mon Sep 17 00:00:00 2001
From: wlanboy <wlanboy@github.com>
Date: Mon, 12 Jan 2026 21:51:33 +0100
Subject: [PATCH 1/4] added docker ignore

---
 .dockerignore | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 .dockerignore

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..b8075e4
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+target/
+.git/
+.idea/
+.vscode/
+.guthub/
+*.iml

From a2aa62f6e6ba13aa0b14d8fc05b07b4629d2d271 Mon Sep 17 00:00:00 2001
From: wlanboy <wlanboy@github.com>
Date: Mon, 12 Jan 2026 21:52:00 +0100
Subject: [PATCH 2/4] entry point with params

---
 entrypoint.sh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100755 entrypoint.sh

diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100755
index 0000000..a874fbe
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+set -e
+
+# Wir nutzen exec, damit Java die PID 1 übernimmt.
+# Dies ist wichtig für das Signal-Handling (z.B. in Kubernetes).
+exec java \
+  -Djava.security.egd=file:/dev/./urandom \
+  -XX:SharedArchiveFile=application.jsa \
+  -XX:MaxRAMPercentage=50 \
+  -XX:InitialRAMPercentage=30 \
+  -XX:+UseG1GC \
+  -XX:MaxGCPauseMillis=200 \
+  -XX:+ExplicitGCInvokesConcurrent \
+  -XX:+ExitOnOutOfMemoryError \
+  org.springframework.boot.loader.launch.JarLauncher \
+  --spring.config.location=file:/app/config/application.properties
\ No newline at end of file

From 92193264c3d72aa7701c87c9fad2f5734756db4d Mon Sep 17 00:00:00 2001
From: wlanboy <wlanboy@github.com>
Date: Mon, 12 Jan 2026 21:52:11 +0100
Subject: [PATCH 3/4] added layer plugin

---
 pom.xml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pom.xml b/pom.xml
index 5ce3b12..3a2bf3a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -93,6 +93,15 @@
 
 	<build>
 		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<layers>
+						<enabled>true</enabled>
+					</layers>
+				</configuration>
+			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>

From 2628ff04235f88b5f930135b46f315397d8a88fb Mon Sep 17 00:00:00 2001
From: wlanboy <wlanboy@github.com>
Date: Mon, 12 Jan 2026 21:52:28 +0100
Subject: [PATCH 4/4] cache mount and layer

---
 Dockerfile | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index d55259c..7796f8d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,14 +7,18 @@ WORKDIR /app
 
 # Erst nur die Dependencies
 COPY --chown=185:0 pom.xml .
-RUN mvn -q -DskipTests dependency:go-offline
+RUN --mount=type=cache,target=/root/.m2 mvn -q -DskipTests dependency:go-offline
 
 # Dann erst der Sourcecode
 COPY --chown=185:0 src ./src
-RUN mvn -q -DskipTests package
+RUN --mount=type=cache,target=/root/.m2 mvn -q -DskipTests package
+
+# Wir behalten das JAR für das Training UND extrahieren die Layer
+RUN cp target/kubeevent-0.0.1-SNAPSHOT.jar app.jar && \
+    java -Djarmode=layertools -jar app.jar extract
 
 # ============================
-# 2. Runtime Stage
+# 3. Runtime Stage
 # ============================
 FROM registry.access.redhat.com/ubi9/openjdk-21-runtime:latest
 
@@ -30,9 +34,20 @@ RUN mkdir -p /app/config /app/data && \
 
 USER 185
 
-COPY --from=build /app/target/kubeevent-0.0.1-SNAPSHOT.jar /app/kubeevent.jar
+# Dependencies 
+COPY --from=build /app/dependencies/ ./
+COPY --from=build /app/spring-boot-loader/ ./
+COPY --from=build /app/snapshot-dependencies/ ./
+
+# Application
+COPY --from=build /app/application/ ./
+
 COPY config/application.properties /app/config/application.properties
+COPY entrypoint.sh /app/entrypoint.sh
 
 EXPOSE 8080
 
-ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/app/kubeevent.jar", "--spring.config.location=file:/app/config/application.properties"]
+HEALTHCHECK --interval=30s --timeout=3s \
+  CMD curl -f http://localhost:8080/actuator/health || exit 1
+
+ENTRYPOINT ["/app/entrypoint.sh"]
\ No newline at end of file