openshift_facts role/module refactor default settings

- Add openshift_facts role and module
  - Created new role openshift_facts that contains an openshift_facts module
  - Refactor openshift_* roles to use openshift_facts instead of relying on
    defaults
  - Refactor playbooks to use openshift_facts
  - Cleanup inventory group_vars

- Update defaults
  - update openshift_master role firewall defaults
    - remove etcd peer port, since we will not be supporting clustered embedded
      etcd
    - remove 8444 since console now runs on the api port by default
    - add 8444 and 7001 to disabled services to ensure removal if updating

- Add new role os_env_extras_node that is a subset of the docker role
  - previously, we were starting/enabling docker which was causing issues with some
  installations
  - Does not install or start docker, since the openshift-node role will
    handle that for us
  - Only adds root to the dockerroot group
  - Update playbooks to use ops_env_extras_node role instead of docker role

- os_firewall bug fixes
  - ignore ip6tables for now, since we are not configuring any ipv6 rules
  - if installing package do a daemon-reload before starting/enabling service

- Add aws support to bin/cluster

- Add list action to bin/cluster

- Add update action to bin/cluster

- cleanup some stray debug statements

- some variable renaming for clarity

1 files changed, 24 insertions, 2 deletions

diff --git a/README_AWS.md b/README_AWS.md
index fb9d0f895..e877f34c6 100644
--- a/README_AWS.md
+++ b/README_AWS.md
@@ -51,7 +51,29 @@ OSX:
 Test The Setup
 --------------
 1. cd openshift-ansible
-1. Try to list all instances:
+1. Try to list all instances (Passing an empty string as the cluster_id
+argument will result in all ec2 instances being listed)
 ```
-  ./cloud.rb aws list
+  bin/cluster list aws ''
+```
+
+Creating a cluster
+------------------
+1. To create a cluster with one master and two nodes
+```
+  bin/cluster create aws <cluster-id>
+```
+
+Updating a cluster
+---------------------
+1. To update the cluster
+```
+  bin/cluster update aws <cluster-id>
+```
+
+Terminating a cluster
+---------------------
+1. To terminate the cluster
+```
+  bin/cluster terminate aws <cluster-id>
 ```