Refresh ubuntu-14.04

Closes-Bug: PROD-21397 (PROD:21397)

Change-Id: I5a7717e26c016bd5a89d9cb1031dca7c14299050
diff --git a/ubuntu-14.04/scripts/docker.sh b/ubuntu-14.04/scripts/docker.sh
index 9ae4add..bd79ed8 100644
--- a/ubuntu-14.04/scripts/docker.sh
+++ b/ubuntu-14.04/scripts/docker.sh
@@ -1,5 +1,6 @@
 # This should simulate preseed behavior
 
+apt-get update
 apt-get -y install curl
 
 # Add apt repository
@@ -7,6 +8,7 @@
 echo "deb [arch=amd64] http://apt.mirantis.com/trusty/ nightly extra" > /etc/apt/sources.list.d/mcp_extra.list
 curl -sf http://apt.mirantis.com/public.gpg | apt-key add -
 
+apt-get clean
 apt-get update
 
 # Kernel makes no sense in docker, let base.sh know