Updates for testing period for 20.01 release

Includes updates to charmhelpers/charms.openstack for cert_utils
and unit-get for the install hook error on Juju 2.9

* charm-helpers sync for classic charms
* rebuild for reactive charms
* ensure tox.ini is from release-tools
* ensure requirements.txt files are from release-tools
* On reactive charms:
  - ensure master branch for charms.openstack
  - ensure master branch for charm-helpers

Change-Id: I9f252f378e4c76e6c44acf3e8a690cb39a299d30

charmhelpers/contrib/openstack/cert_utils.py

@@ -30,7 +30,6 @@ from charmhelpers.core.hookenv import (
     relation_get,
     relation_ids,
     remote_service_name,
-    unit_get,
     NoNetworkBinding,
     log,
     WARNING,
@@ -41,6 +40,7 @@ from charmhelpers.contrib.openstack.ip import (
     get_vip_in_network,
     ADDRESS_MAP,
     get_default_api_bindings,
+    local_address,
 )
 from charmhelpers.contrib.network.ip import (
     get_relation_ip,
@@ -81,7 +81,7 @@ class CertRequest(object):
 
     def add_hostname_cn(self):
         """Add a request for the hostname of the machine"""
-        ip = unit_get('private-address')
+        ip = local_address(unit_get_fallback='private-address')
         addresses = [ip]
         # If a vip is being used without os-hostname config or
         # network spaces then we need to ensure the local units
@@ -194,7 +194,7 @@ def get_certificate_sans(bindings=None):
     :returns: List of binding string names
     :rtype: List[str]
     """
-    _sans = [unit_get('private-address')]
+    _sans = [local_address(unit_get_fallback='private-address')]
     if bindings:
         # Add default API bindings to bindings list
         bindings = list(bindings + get_default_api_bindings())
@@ -260,7 +260,7 @@ def create_ip_cert_links(ssl_dir, custom_hostname_link=None, bindings=None):
                 os.symlink(requested_key, key)
 
     # Handle custom hostnames
-    hostname = get_hostname(unit_get('private-address'))
+    hostname = get_hostname(local_address(unit_get_fallback='private-address'))
     hostname_cert = os.path.join(
         ssl_dir,
         'cert_{}'.format(hostname))

charmhelpers/contrib/openstack/context.py

@@ -49,7 +49,6 @@ from charmhelpers.core.hookenv import (
     relation_ids,
     related_units,
     relation_set,
-    unit_get,
     unit_private_ip,
     charm_name,
     DEBUG,
@@ -98,6 +97,7 @@ from charmhelpers.contrib.openstack.ip import (
     ADMIN,
     PUBLIC,
     ADDRESS_MAP,
+    local_address,
 )
 from charmhelpers.contrib.network.ip import (
     get_address_in_network,
@@ -247,7 +247,7 @@ class SharedDBContext(OSContextGenerator):
                 hostname_key = "hostname"
             access_hostname = get_address_in_network(
                 access_network,
-                unit_get('private-address'))
+                local_address(unit_get_fallback='private-address'))
             set_hostname = relation_get(attribute=hostname_key,
                                         unit=local_unit())
             if set_hostname != access_hostname:
@@ -1088,7 +1088,7 @@ class ApacheSSLContext(OSContextGenerator):
             # NOTE(jamespage): Fallback must always be private address
             #                  as this is used to bind services on the
             #                  local unit.
-            fallback = unit_get("private-address")
+            fallback = local_address(unit_get_fallback="private-address")
             if net_config:
                 addr = get_address_in_network(net_config,
                                               fallback)
@@ -1260,7 +1260,7 @@ class NeutronContext(OSContextGenerator):
         if is_clustered():
             host = config('vip')
         else:
-            host = unit_get('private-address')
+            host = local_address(unit_get_fallback='private-address')
 
         ctxt = {'network_manager': self.network_manager,
                 'neutron_url': '%s://%s:%s' % (proto, host, '9696')}

charmhelpers/contrib/openstack/ip.py

@@ -123,6 +123,25 @@ def _get_address_override(endpoint_type=PUBLIC):
         return addr_override.format(service_name=service_name())
 
 
+def local_address(unit_get_fallback='public-address'):
+    """Return a network address for this unit.
+
+    Attempt to retrieve a 'default' IP address for this unit
+    from network-get. If this is running with an old version of Juju then
+    fallback to unit_get.
+
+    :param unit_get_fallback: Either 'public-address' or 'private-address'.
+                              Only used with old versions of Juju.
+    :type unit_get_fallback: str
+    :returns: IP Address
+    :rtype: str
+    """
+    try:
+        return network_get_primary_address('juju-info')
+    except NotImplementedError:
+        return unit_get(unit_get_fallback)
+
+
 def resolve_address(endpoint_type=PUBLIC, override=True):
     """Return unit address depending on net config.
 
@@ -176,7 +195,7 @@ def resolve_address(endpoint_type=PUBLIC, override=True):
         if config('prefer-ipv6'):
             fallback_addr = get_ipv6_addr(exc_list=vips)[0]
         else:
-            fallback_addr = unit_get(net_fallback)
+            fallback_addr = local_address(unit_get_fallback=net_fallback)
 
         if net_addr:
             resolved_address = get_address_in_network(net_addr, fallback_addr)