Generalization of lightweight build install

Swarm init with advertised address
Docker-compose file exposing only relevant ports
Docker env files updated to be generated by the installer

Change-Id: I8325d929b76564f5f1bf9fb49144e9b8c239f128
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/docker/lcm.env b/installers/docker/lcm.env
index 9c9de25..f0baac4 100644
--- a/installers/docker/lcm.env
+++ b/installers/docker/lcm.env
@@ -1,2 +1,2 @@
-OSMLCM_VCA_HOST=`juju show-controller|grep api-endpoints|awk -F\' '{print $2}'|awk -F\: '{print $1}'`
-OSMLCM_VCA_SECRET=`grep password /home/ubuntu/.local/share/juju/accounts.yaml |awk '{print $2}'`
+OSMLCM_VCA_HOST=__JUJU_CONTROLLER_IP__
+OSMLCM_VCA_SECRET=__JUJU_PASSWORD__