Use distroless (#101)

* use distroless

* add entrypoint

Author: Vitenok

Dockerfile

@@ -1,6 +1,7 @@
-FROM ghcr.io/navikt/baseimages/temurin:21
-
+FROM gcr.io/distroless/java21
+ENV TZ="Europe/Oslo"
 ENV JDK_JAVA_OPTIONS="-XX:MaxRAMPercentage=75.0 -XX:+UseParallelGC -XX:ActiveProcessorCount=2"
-
-LABEL org.opencontainers.image.source=https://github.com/navikt/aktivitetskrav-backend
+WORKDIR /app
 COPY build/libs/*.jar app.jar
+ENTRYPOINT ["java", "-jar", "app.jar"]
+LABEL org.opencontainers.image.source=https://github.com/navikt/aktivitetskrav-backend