run apt-get clean before install/update

Running apt-get clean before an update/install should help to prevent
failures during installation. This will help to improve the build
stability.

Source:
 - https://stackoverflow.com/questions/35923576/debian-httpredir-mirror-system-unreliable-unusable-in-docker

Change-Id: Id7d6ee95cfec28af59311b4d9e6852ae5e5e4c8c
Tuleap: #873

docker/Dockerfile_debian8

 FROM debian:8
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_debian8_i386

 FROM savoirfairelinux/ring-debian32:8
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_debian9

 FROM debian:stretch
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_debian9_i386

 FROM savoirfairelinux/ring-debian32:9
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_ubuntu14.04

 FROM ubuntu:14.04
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_ubuntu14.04_i386

 FROM savoirfairelinux/ring-ubuntu32:14.04
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_ubuntu15.10

 FROM ubuntu:15.10
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_ubuntu15.10_i386

 FROM savoirfairelinux/ring-ubuntu32:15.10
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_ubuntu16.04

 FROM ubuntu:16.04
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

docker/Dockerfile_ubuntu16.04_i386

 FROM savoirfairelinux/ring-ubuntu32:16.04
 
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y vim devscripts equivs
 
 # Speed up mk-build-deps
+RUN apt-get clean
 RUN apt-get update && \
     apt-get install -y -o Acquire::Retires=10 \
         autoconf \

scripts/build-package-debian.sh

@@ -35,6 +35,7 @@ else
 fi
 
 # install build deps
+apt-get clean
 apt-get update
 apt-get upgrade -o Acquire::Retires=10 -y
 mk-build-deps --remove --install debian/control -t "apt-get -y --no-install-recommends"