Merge pull request #5008 from evolvedbinary/6.x.x/feature/docker-debu…

…g-jdwp-suspend

[6.x.x] Allow the user to override the JDWP Suspend at Docker build time

exist-docker/src/main/resources-filtered/Dockerfile-DEBUG

@@ -48,10 +48,11 @@ LABEL org.label-schema.build-date=${maven.build.timestamp} \
 
 EXPOSE 8080 8443 5005
 
-# make CACHE_MEM, MAX_BROKER, and JVM_MAX_RAM_PERCENTAGE available to users
+# make CACHE_MEM, MAX_BROKER, JVM_MAX_RAM_PERCENTAGE, and JVM_JDWP_SUSPEND available to users at build time
 ARG CACHE_MEM
 ARG MAX_BROKER
 ARG JVM_MAX_RAM_PERCENTAGE
+ARG JVM_JDWP_SUSPEND
 
 ENV EXIST_HOME "/exist"
 ENV CLASSPATH=/exist/lib/${exist.uber.jar.filename}
@@ -72,7 +73,7 @@ ENV JAVA_TOOL_OPTIONS \
   -XX:+UseContainerSupport \
   -XX:MaxRAMPercentage=${JVM_MAX_RAM_PERCENTAGE:-75.0} \
   -XX:+ExitOnOutOfMemoryError \
-  -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005
+  -agentlib:jdwp=transport=dt_socket,server=y,suspend=${JVM_JDWP_SUSPEND:-n},address=5005
 
 HEALTHCHECK CMD [ "java", \
     "org.exist.start.Main", "client", \