Upgrade to Java 17

Psalmenweb-nieuw/Dockerfile

@@ -1,19 +1,2 @@
-# Use OpenJDK 17 as the base image
-FROM openjdk:17-jdk-slim
-
-# Set the working directory in the container
-WORKDIR /app
-
-# Copy the JAR file into the container
-# Replace 'your-app.jar' with your actual JAR file name
-COPY target/*.jar app.jar
-
-# Expose port 8090
-EXPOSE 8090
-
-# Create a non-root user for security
-RUN addgroup --system spring && adduser --system spring --ingroup spring
-USER spring:spring
-
-# Run the application
-ENTRYPOINT ["java", "-jar", "app.jar"]
+FROM tomcat
+COPY target/*.war /usr/local/tomcat/webapps/ROOT.war