From 67b5deae600b0913607c6bccaa9d0cf58eb7e785 Mon Sep 17 00:00:00 2001
From: Staffan Olsson <staffan@repos.se>
Date: Wed, 26 Jul 2017 05:38:32 +0200
Subject: [PATCH] How does a caller know how to override log4j.properties?

---
 kafka/Dockerfile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kafka/Dockerfile b/kafka/Dockerfile
index 98059a1..1daa0af 100644
--- a/kafka/Dockerfile
+++ b/kafka/Dockerfile
@@ -29,7 +29,10 @@ RUN set -ex; \
   sed -i 's|base_dir=$(dirname $0)|base_dir=/opt/kafka/bin|' /usr/local/bin/*; \
   \
   mv -v ./config /etc/kafka; \
-  ln -sv /etc/kafka ./config;
+  ln -sv /etc/kafka ./config; \
+  \
+  grep 'Dlog4j.configuration' /usr/local/bin/* /opt/kafka/bin/kafka-run-class.sh;
+
 
 COPY docker-help.sh /usr/local/bin/docker-help
 ENTRYPOINT ["docker-help"]