Improve order of execution of install scripts.

Remove uneccesary environment variable. /usr/loca/lib already in ld.so.conf*

Author: larroy

ci/docker/Dockerfile.build.ubuntu_base_cpu

@@ -25,6 +25,7 @@ WORKDIR /work/deps
 
 RUN apt-get update && apt-get -y install sudo
 
+# Always last
 ARG USER_ID=0
 ARG GROUP_ID=0
 COPY install/ubuntu_adduser.sh /work/

ci/docker/Dockerfile.build.ubuntu_build_cuda

@@ -62,4 +62,3 @@ RUN /work/ubuntu_adduser.sh
 COPY runtime_functions.sh /work/
 
 WORKDIR /work/mxnet
-ENV LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib

ci/docker/Dockerfile.build.ubuntu_cpu

@@ -70,6 +70,7 @@ COPY install/ubuntu_docs.sh /work/
 COPY install/docs_requirements /work/
 RUN /work/ubuntu_docs.sh
 
+# Always last
 ARG USER_ID=0
 ARG GROUP_ID=0
 COPY install/ubuntu_adduser.sh /work/
@@ -78,4 +79,3 @@ RUN /work/ubuntu_adduser.sh
 COPY runtime_functions.sh /work/
 
 WORKDIR /work/mxnet
-ENV LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib

ci/docker/Dockerfile.build.ubuntu_gpu

@@ -69,15 +69,15 @@ RUN /work/ubuntu_docs.sh
 COPY install/ubuntu_tutorials.sh /work/
 RUN /work/ubuntu_tutorials.sh
 
+COPY install/ubuntu_cudnn.sh /work/
+RUN /work/ubuntu_cudnn.sh
+
+# Always last
 ARG USER_ID=0
 ARG GROUP_ID=0
 COPY install/ubuntu_adduser.sh /work/
 RUN /work/ubuntu_adduser.sh
 
-COPY install/ubuntu_cudnn.sh /work/
-RUN /work/ubuntu_cudnn.sh
-
 COPY runtime_functions.sh /work/
 
 WORKDIR /work/mxnet
-ENV LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib

ci/docker/Dockerfile.build.ubuntu_nightly_gpu

@@ -83,4 +83,3 @@ RUN /work/ubuntu_adduser.sh
 COPY runtime_functions.sh /work/
 
 WORKDIR /work/mxnet
-ENV LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib