diff --git a/lib/charms/ceph_base.py b/lib/charms/ceph_base.py
index e4ce661..ebe53a4 100644
--- a/lib/charms/ceph_base.py
+++ b/lib/charms/ceph_base.py
@@ -41,6 +41,8 @@ from charmhelpers.core.hookenv import (
     relation_ids,
     related_units,
     relation_get,
+    local_unit,
+    network_get_primary_address,
 )
 from charmhelpers.fetch import (
     apt_cache,
@@ -123,9 +125,35 @@ def get_host_ip(hostname=None):
             return answers[0].address
 
 
+
+@cached
+def get_public_addr():
+    if config('ceph-public-network'):
+        return get_network_addrs('ceph-public-network')[0]
+
+    try:
+        return network_get_primary_address('public')
+    except NotImplementedError:
+        log("network-get not supported", DEBUG)
+
+    return get_host_ip()
+
+
+@cached
+def get_cluster_addr():
+    if config('ceph-cluster-network'):
+        return get_network_addrs('ceph-cluster-network')[0]
+
+    try:
+        return network_get_primary_address('cluster')
+    except NotImplementedError:
+        log("network-get not supported", DEBUG)
+
+    return get_host_ip()
+
+
 def get_networks(config_opt='ceph-public-network'):
     """Get all configured networks from provided config option.
-
     If public network(s) are provided, go through them and return those for
     which we have an address configured.
     """
@@ -137,13 +165,8 @@ def get_networks(config_opt='ceph-public-network'):
     return []
 
 
-def get_public_addr():
-    return get_network_addrs('ceph-public-network')[0]
-
-
 def get_network_addrs(config_opt):
     """Get all configured public networks addresses.
-
     If public network(s) are provided, go through them and return the
     addresses we have configured on any of those networks.
     """
@@ -173,6 +196,20 @@ def assert_charm_supports_ipv6():
                         "versions less than Trusty 14.04")
 
 
+def get_peer_units():
+    """
+    Returns a dictionary of unit names from the mon peer relation with
+    a flag indicating whether the unit has presented its address
+    """
+    units = {}
+    units[local_unit()] = True
+    for relid in relation_ids('mon'):
+        for unit in related_units(relid):
+            addr = relation_get('ceph-public-address', unit, relid)
+            units[unit] = addr is not None
+    return units
+
+
 LEADER = 'leader'
 PEON = 'peon'
 QUORUM = [LEADER, PEON]
diff --git a/reactive/ceph_base.py b/reactive/ceph_base.py
index 3e93615..021a655 100644
--- a/reactive/ceph_base.py
+++ b/reactive/ceph_base.py
@@ -5,6 +5,7 @@ import charms.apt
 from charms.ceph_base import (
     # get_networks,
     # get_public_addr,
+    get_peer_units,
     get_mon_hosts,
     is_bootstrapped,
     is_quorum,
@@ -28,11 +29,11 @@ from charmhelpers.core.hookenv import (
 
 from charmhelpers.core.sysctl import create as create_sysctl
 
-# from charmhelpers.contrib.hardening.harden import harden
+from charms_hardening.harden import harden
 
 
 @when_not('ceph.installed')
-# @harden()
+@harden()
 def install_ceph_base():
     charms.apt.add_source(config('source'), key=config('key'))
     charms.apt.queue_install(charms.ceph_base.PACKAGES)
@@ -41,7 +42,7 @@ def install_ceph_base():
 
 
 @when('config.changed', 'ceph.installed')
-# @harden()
+@harden()
 def config_changed():
     # # Check if an upgrade was requested
     # check_for_upgrade()
@@ -124,20 +125,6 @@ def log_monitor():
         # reboot the ceph-mon process
 
 
-def get_peer_units():
-    """
-    Returns a dictionary of unit names from the mon peer relation with
-    a flag indicating whether the unit has presented its address
-    """
-    units = {}
-    units[local_unit()] = True
-    for relid in relation_ids('mon'):
-        for unit in related_units(relid):
-            addr = relation_get('ceph-public-address', unit, relid)
-            units[unit] = addr is not None
-    return units
-
-
 def log_osds():
     if not is_state('ceph_mon.installed'):
         # Check for mon relation
diff --git a/wheelhouse.txt b/wheelhouse.txt
index 03c3f1c..5b6e8fd 100644
--- a/wheelhouse.txt
+++ b/wheelhouse.txt
@@ -3,3 +3,5 @@ dnspython3
 #charms_storage
 #git+https://github.com/openstack-charmers/charms.storage.git#egg=charms.storage
 git+https://github.com/chrismacnaughton/charms.storage.git#egg=charms.storage
+#charms_hardening
+git+https://github.com/ChrisMacNaughton/charms.hardening.git#egg=charms.hardening
\ No newline at end of file