diff --git a/README b/README
index cc0e63e..2113f2a 100644
--- a/README
+++ b/README
@@ -1,22 +1,21 @@
 # Overview
 
-The nova-compute-power charm deploys OpenStack to a set IBM Power8 servers running PowerKVM.
+The nova-compute-power charm deploys openstack to a given Power8 compute node. 
 
 # Usage
 
 To deploy a nova-compute-power service you have to have the following:
 
 * Generate a ssh key that the charm can use to login to the compute node
-  to start installing RPMS and configuration file.
-* A yum repository which contains the appropriate IBM Openstack Icehouse
+  to start installing RPMS and configuration file
+* A yum repository which contains the appropriate IBM Openstack Icehouse 
   RPMs.
-* sudo password-less configuration for the user on the compute node.
+* Sudo password-less configured for the user on the compute node.
 
 Once you have this setup you must configure the charm as follow:
 
 1. Place the key to the nova-compute node in the files directory of the
    charm.
-
 2. Create a config.yaml that has the following:
 
     * power-user: username used to access and configure the power node.
diff --git a/config.yaml b/config.yaml
index e1f95ce..1c08a61 100644
--- a/config.yaml
+++ b/config.yaml
@@ -7,6 +7,10 @@ options:
     type: string
     default:
     description: Username used to access POWER hypervisors.
+  power-key:
+    type: string
+    default:
+    description: SSH key to use to accesss POWER hypervisors.
   power-repo:
     type: string
     default:
@@ -14,7 +18,7 @@ options:
   power-hosts:
     type: string
     default:
-    description: POWER hosts to manager; space delimited and must be IP addresses.
+    description: POWER hosts to manager; space delimited.
   power-password:
     type: string
     default:
diff --git a/hooks/fabfile.py b/hooks/fabfile.py
index 3c643d5..580746d 100644
--- a/hooks/fabfile.py
+++ b/hooks/fabfile.py
@@ -38,9 +38,8 @@ def add_bridge(bridge_name):
 
 
 def add_bridge_port(bridge_name, port):
-    sudo('ovs-vsctl -- --may-exist '
-         'add-port %s %s' % (bridge_name,
-                             port))
+    sudo('ovs-vsctl -- --may-exist add-port %s %s' % (bridge_name,
+                                                      port))
     sudo('ip link set %s up' % port)
     sudo('ip link set %s promisc on' % port)
 
diff --git a/hooks/nova_compute_hooks.py b/hooks/nova_compute_hooks.py
index 77ecbb8..a502dc6 100755
--- a/hooks/nova_compute_hooks.py
+++ b/hooks/nova_compute_hooks.py
@@ -28,6 +28,7 @@ from nova_compute_proxy import (
 hooks = Hooks()
 CONFIGS = register_configs()
 proxy = POWERProxy(user=config('power-user'),
+                   ssh_key=config('power-key'),
                    hosts=config('power-hosts'),
                    repository=config('power-repo'),
                    password=config('power-password'))
@@ -35,7 +36,7 @@ proxy = POWERProxy(user=config('power-user'),
 
 @hooks.hook()
 def install():
-    apt_install('fabric', fatal=True)
+    apt_install(['fabric'], fatal=True)
     proxy.install()
 
 
diff --git a/hooks/nova_compute_proxy.py b/hooks/nova_compute_proxy.py
index 1d2eea7..59bfb66 100644
--- a/hooks/nova_compute_proxy.py
+++ b/hooks/nova_compute_proxy.py
@@ -56,24 +56,29 @@ CONFIG_FILES = [
 
 class POWERProxy():
 
-    def __init__(self, user, hosts,
+    def __init__(self, user, ssh_key, hosts,
                  repository, password):
-        if None in [user, hosts, repository]:
-            raise ValueError('Missing configuration')
+        if None in [user, ssh_key, hosts, repository]:
+            raise Exception('Missing configuration')
         self.user = user
+        self.ssh_key = ssh_key
         self.hosts = hosts.split()
         self.repository = repository
         self.password = password
+        self.key_filename = self._write_key()
         self._init_fabric()
 
+    def _write_key(self):
+        return os.path.join(charm_dir(), 'files', self.ssh_key)
+
     def _init_fabric(self):
         env.warn_only = True
         env.connection_attempts = 10
         env.timeout = 10
         env.user = self.user
+        env.key_filename = self.key_filename
         env.hosts = self.hosts
         env.password = self.password
-        env.use_ssh_config = True
 
     def install(self):
         self._setup_yum()