Added dockerfile build

.gitea/workflows/build.yml

@@ -18,8 +18,19 @@ jobs:
           distribution: 'adopt'
       - name: Grant execute permission for mvnw
         run: chmod +x ./mvnw
+
       - name: Build with Maven
         run: ./mvnw package spring-boot:repackage
+
+      - name: Build Docker image
+        run: docker build -t walzen665/spring-cicd-test:latest --build-arg="JAR_FILE=demo-0.0.1-SNAPSHOT-spring-boot.jar" .
+
+      - name: Log in to Gitea Docker Registry
+        run: echo ${{ secrets.GITEAREGISTRYTOKEN }} | docker login -u ${{ secrets.GITEAREGISTRYUSERNAME }} --password-stdin https://git.walzen665.de
+
+      - name: Push Docker Image to Gitea
+        run: docker push walzen665/spring-cicd-test:latest
+
       - name: Upload Artifact
         uses: actions/upload-artifact@v3
         with:

Dockerfile

@@ -0,0 +1,5 @@
+FROM eclipse-temurin:17-jdk-alpine
+VOLUME /tmp
+ARG JAR_FILE
+COPY ${JAR_FILE} app.jar
+ENTRYPOINT ["java","-jar","/app.jar"]