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-rw-r--r--docker/spark-test/base/Dockerfile10
1 files changed, 5 insertions, 5 deletions
diff --git a/docker/spark-test/base/Dockerfile b/docker/spark-test/base/Dockerfile
index 5956d59130..5dbdb8b22a 100644
--- a/docker/spark-test/base/Dockerfile
+++ b/docker/spark-test/base/Dockerfile
@@ -17,13 +17,13 @@
FROM ubuntu:precise
-RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
-
# Upgrade package index
-RUN apt-get update
-
# install a few other useful packages plus Open Jdk 7
-RUN apt-get install -y less openjdk-7-jre-headless net-tools vim-tiny sudo openssh-server
+# Remove unneeded /var/lib/apt/lists/* after install to reduce the
+# docker image size (by ~30MB)
+RUN apt-get update && \
+ apt-get install -y less openjdk-7-jre-headless net-tools vim-tiny sudo openssh-server && \
+ rm -rf /var/lib/apt/lists/*
ENV SCALA_VERSION 2.10.4
ENV CDH_VERSION cdh4