Use bookworm, pull JDK from image using COPY (see https://hub.docker.…

…com/_/eclipse-temurin)

Dockerfile

@@ -2,7 +2,12 @@ FROM docker.io/maven:3-eclipse-temurin-17
 COPY . /snmpman
 RUN cd /snmpman && mvn clean package
 
-FROM docker.io/openjdk:17-bullseye
+FROM docker.io/debian:bookworm
+ARG JAVA_VERSION=17
+ENV JAVA_HOME=/opt/java/openjdk
+COPY --from=docker.io/eclipse-temurin:${JAVA_VERSION} /opt/java/openjdk $JAVA_HOME
+ENV PATH="${JAVA_HOME}/bin:${PATH}"
+
 #RUN apt-get update && apt-get install --yes snmp tcpdump strace iproute2 net-tools
 RUN useradd snmpman
 COPY --chown=snmpman:snmpman --from=0 /snmpman/snmpman-cli/target/snmpman-cli-*bin /snmpman