Update mirrors from apt to mirror.mirantis.com

Change-Id: I856859a7bf2a1cc2d12fcb965e3b69c2a580cd2f
diff --git a/ubuntu-16.04/scripts/docker.sh b/ubuntu-16.04/scripts/docker.sh
index 3b22e5c..d5628ab 100644
--- a/ubuntu-16.04/scripts/docker.sh
+++ b/ubuntu-16.04/scripts/docker.sh
@@ -4,9 +4,9 @@
 apt-get -y install curl
 
 # Add apt repository
-echo "deb [arch=amd64] http://apt.mirantis.com/xenial/ nightly salt" > /etc/apt/sources.list.d/mcp_salt.list
-echo "deb [arch=amd64] http://apt.mirantis.com/xenial/ nightly extra" > /etc/apt/sources.list.d/mcp_extra.list
-curl -sf http://apt.mirantis.com/public.gpg | apt-key add -
+echo "deb [arch=amd64] http://mirror.mirantis.com/nightly/docker/xenial/ xenial main" > /etc/apt/sources.list.d/mcp_salt.list
+echo "deb [arch=amd64] http://mirror.mirantis.com/nightly/extra/xenial/ xenial main" > /etc/apt/sources.list.d/mcp_extra.list
+curl -sf http://mirror.mirantis.com/nightly/extra/xenial/archive-extra.key | apt-key add -
 
 apt-get clean
 apt-get update