Enable Zesty-Ocata Amulet Tests

- Turn on Zesty-Ocata Amulet test definitions.
- Standardize test-requirements.txt
- Sync charm helpers for various fixes

Change-Id: Ia9a42cd4a76a6fa8a70e7092b9d61657816d2d65

hooks/charmhelpers/contrib/charmsupport/nrpe.py

@@ -373,7 +373,7 @@ def add_init_service_checks(nrpe, services, unit_name, immediate_check=True):
             checkpath = '%s/service-check-%s.txt' % (nrpe.homedir, svc)
             croncmd = (
                 '/usr/local/lib/nagios/plugins/check_exit_status.pl '
-                '-s /etc/init.d/%s status' % svc
+                '-e -s /etc/init.d/%s status' % svc
             )
             cron_file = '*/5 * * * * root %s > %s\n' % (croncmd, checkpath)
             f = open(cronpath, 'w')

hooks/charmhelpers/contrib/network/ip.py

@@ -111,11 +111,11 @@ def get_address_in_network(network, fallback=None, fatal=False):
         for iface in netifaces.interfaces():
             addresses = netifaces.ifaddresses(iface)
             if network.version == 4 and netifaces.AF_INET in addresses:
-                addr = addresses[netifaces.AF_INET][0]['addr']
-                netmask = addresses[netifaces.AF_INET][0]['netmask']
-                cidr = netaddr.IPNetwork("%s/%s" % (addr, netmask))
-                if cidr in network:
-                    return str(cidr.ip)
+                for addr in addresses[netifaces.AF_INET]:
+                    cidr = netaddr.IPNetwork("%s/%s" % (addr['addr'],
+                                                        addr['netmask']))
+                    if cidr in network:
+                        return str(cidr.ip)
 
             if network.version == 6 and netifaces.AF_INET6 in addresses:
                 for addr in addresses[netifaces.AF_INET6]:
@@ -239,6 +239,16 @@ def format_ipv6_addr(address):
     return None
 
 
+def is_ipv6_disabled():
+    try:
+        result = subprocess.check_output(
+            ['sysctl', 'net.ipv6.conf.all.disable_ipv6'],
+            stderr=subprocess.STDOUT)
+        return "net.ipv6.conf.all.disable_ipv6 = 1" in result
+    except subprocess.CalledProcessError:
+        return True
+
+
 def get_iface_addr(iface='eth0', inet_type='AF_INET', inc_aliases=False,
                    fatal=True, exc_list=None):
     """Return the assigned IP address for a given interface, if any.
@@ -544,31 +554,38 @@ def assert_charm_supports_ipv6():
                         "versions less than Trusty 14.04")
 
 
-def get_relation_ip(interface, config_override=None):
-    """Return this unit's IP for the given relation.
+def get_relation_ip(interface, cidr_network=None):
+    """Return this unit's IP for the given interface.
 
     Allow for an arbitrary interface to use with network-get to select an IP.
-    Handle all address selection options including configuration parameter
-    override and IPv6.
+    Handle all address selection options including passed cidr network and
+    IPv6.
 
-    Usage: get_relation_ip('amqp', config_override='access-network')
+    Usage: get_relation_ip('amqp', cidr_network='10.0.0.0/8')
 
     @param interface: string name of the relation.
-    @param config_override: string name of the config option for network
-           override. Supports legacy network override configuration parameters.
+    @param cidr_network: string CIDR Network to select an address from.
     @raises Exception if prefer-ipv6 is configured but IPv6 unsupported.
     @returns IPv6 or IPv4 address
     """
+    # Select the interface address first
+    # For possible use as a fallback bellow with get_address_in_network
+    try:
+        # Get the interface specific IP
+        address = network_get_primary_address(interface)
+    except NotImplementedError:
+        # If network-get is not available
+        address = get_host_ip(unit_get('private-address'))
 
-    fallback = get_host_ip(unit_get('private-address'))
     if config('prefer-ipv6'):
+        # Currently IPv6 has priority, eventually we want IPv6 to just be
+        # another network space.
         assert_charm_supports_ipv6()
         return get_ipv6_addr()[0]
-    elif config_override and config(config_override):
-        return get_address_in_network(config(config_override),
-                                      fallback)
-    else:
-        try:
-            return network_get_primary_address(interface)
-        except NotImplementedError:
-            return fallback
+    elif cidr_network:
+        # If a specific CIDR network is passed get the address from that
+        # network.
+        return get_address_in_network(cidr_network, address)
+
+    # Return the interface address
+    return address

hooks/charmhelpers/contrib/openstack/amulet/utils.py

@@ -547,7 +547,7 @@ class OpenStackAmuletUtils(AmuletUtils):
         """Create the specified instance."""
         self.log.debug('Creating instance '
                        '({}|{}|{})'.format(instance_name, image_name, flavor))
-        image = nova.images.find(name=image_name)
+        image = nova.glance.find_image(image_name)
         flavor = nova.flavors.find(name=flavor)
         instance = nova.servers.create(name=instance_name, image=image,
                                        flavor=flavor)

hooks/charmhelpers/contrib/openstack/context.py

@@ -60,6 +60,7 @@ from charmhelpers.core.host import (
     pwgen,
     lsb_release,
     CompareHostReleases,
+    is_container,
 )
 from charmhelpers.contrib.hahelpers.cluster import (
     determine_apache_port,
@@ -88,6 +89,7 @@ from charmhelpers.contrib.network.ip import (
     format_ipv6_addr,
     is_address_in_network,
     is_bridge_member,
+    is_ipv6_disabled,
 )
 from charmhelpers.contrib.openstack.utils import (
     config_flags_parser,
@@ -109,6 +111,7 @@ except ImportError:
 
 CA_CERT_PATH = '/usr/local/share/ca-certificates/keystone_juju_ca_cert.crt'
 ADDRESS_TYPES = ['admin', 'internal', 'public']
+HAPROXY_RUN_DIR = '/var/run/haproxy/'
 
 
 def ensure_packages(packages):
@@ -534,6 +537,8 @@ class HAProxyContext(OSContextGenerator):
     """Provides half a context for the haproxy template, which describes
     all peers to be included in the cluster.  Each charm needs to include
     its own context generator that describes the port mapping.
+
+    :side effect: mkdir is called on HAPROXY_RUN_DIR
     """
     interfaces = ['cluster']
 
@@ -541,6 +546,8 @@ class HAProxyContext(OSContextGenerator):
         self.singlenode_mode = singlenode_mode
 
     def __call__(self):
+        if not os.path.isdir(HAPROXY_RUN_DIR):
+            mkdir(path=HAPROXY_RUN_DIR)
         if not relation_ids('cluster') and not self.singlenode_mode:
             return {}
 
@@ -1221,22 +1228,54 @@ class BindHostContext(OSContextGenerator):
             return {'bind_host': '0.0.0.0'}
 
 
+MAX_DEFAULT_WORKERS = 4
+DEFAULT_MULTIPLIER = 2
+
+
+def _calculate_workers():
+    '''
+    Determine the number of worker processes based on the CPU
+    count of the unit containing the application.
+
+    Workers will be limited to MAX_DEFAULT_WORKERS in
+    container environments where no worker-multipler configuration
+    option been set.
+
+    @returns int: number of worker processes to use
+    '''
+    multiplier = config('worker-multiplier') or DEFAULT_MULTIPLIER
+    count = int(_num_cpus() * multiplier)
+    if multiplier > 0 and count == 0:
+        count = 1
+
+    if config('worker-multiplier') is None and is_container():
+        # NOTE(jamespage): Limit unconfigured worker-multiplier
+        #                  to MAX_DEFAULT_WORKERS to avoid insane
+        #                  worker configuration in LXD containers
+        #                  on large servers
+        # Reference: https://pad.lv/1665270
+        count = min(count, MAX_DEFAULT_WORKERS)
+
+    return count
+
+
+def _num_cpus():
+    '''
+    Compatibility wrapper for calculating the number of CPU's
+    a unit has.
+
+    @returns: int: number of CPU cores detected
+    '''
+    try:
+        return psutil.cpu_count()
+    except AttributeError:
+        return psutil.NUM_CPUS
+
+
 class WorkerConfigContext(OSContextGenerator):
 
-    @property
-    def num_cpus(self):
-        # NOTE: use cpu_count if present (16.04 support)
-        if hasattr(psutil, 'cpu_count'):
-            return psutil.cpu_count()
-        else:
-            return psutil.NUM_CPUS
-
     def __call__(self):
-        multiplier = config('worker-multiplier') or 0
-        count = int(self.num_cpus * multiplier)
-        if multiplier > 0 and count == 0:
-            count = 1
-        ctxt = {"workers": count}
+        ctxt = {"workers": _calculate_workers()}
         return ctxt
 
 
@@ -1244,7 +1283,7 @@ class WSGIWorkerConfigContext(WorkerConfigContext):
 
     def __init__(self, name=None, script=None, admin_script=None,
                  public_script=None, process_weight=1.00,
-                 admin_process_weight=0.75, public_process_weight=0.25):
+                 admin_process_weight=0.25, public_process_weight=0.75):
         self.service_name = name
         self.user = name
         self.group = name
@@ -1256,8 +1295,7 @@ class WSGIWorkerConfigContext(WorkerConfigContext):
         self.public_process_weight = public_process_weight
 
     def __call__(self):
-        multiplier = config('worker-multiplier') or 1
-        total_processes = self.num_cpus * multiplier
+        total_processes = _calculate_workers()
         ctxt = {
             "service_name": self.service_name,
             "user": self.user,
@@ -1588,7 +1626,7 @@ class MemcacheContext(OSContextGenerator):
     """Memcache context
 
     This context provides options for configuring a local memcache client and
-    server
+    server for both IPv4 and IPv6
     """
 
     def __init__(self, package=None):
@@ -1606,13 +1644,24 @@ class MemcacheContext(OSContextGenerator):
             # Trusty version of memcached does not support ::1 as a listen
             # address so use host file entry instead
             release = lsb_release()['DISTRIB_CODENAME'].lower()
-            if CompareHostReleases(release) > 'trusty':
-                ctxt['memcache_server'] = '::1'
+            if is_ipv6_disabled():
+                if CompareHostReleases(release) > 'trusty':
+                    ctxt['memcache_server'] = '127.0.0.1'
+                else:
+                    ctxt['memcache_server'] = 'localhost'
+                ctxt['memcache_server_formatted'] = '127.0.0.1'
+                ctxt['memcache_port'] = '11211'
+                ctxt['memcache_url'] = '{}:{}'.format(
+                    ctxt['memcache_server_formatted'],
+                    ctxt['memcache_port'])
             else:
-                ctxt['memcache_server'] = 'ip6-localhost'
-            ctxt['memcache_server_formatted'] = '[::1]'
-            ctxt['memcache_port'] = '11211'
-            ctxt['memcache_url'] = 'inet6:{}:{}'.format(
-                ctxt['memcache_server_formatted'],
-                ctxt['memcache_port'])
+                if CompareHostReleases(release) > 'trusty':
+                    ctxt['memcache_server'] = '::1'
+                else:
+                    ctxt['memcache_server'] = 'ip6-localhost'
+                ctxt['memcache_server_formatted'] = '[::1]'
+                ctxt['memcache_port'] = '11211'
+                ctxt['memcache_url'] = 'inet6:{}:{}'.format(
+                    ctxt['memcache_server_formatted'],
+                    ctxt['memcache_port'])
         return ctxt

hooks/charmhelpers/contrib/openstack/templates/haproxy.cfg

@@ -5,6 +5,8 @@ global
     user haproxy
     group haproxy
     spread-checks 0
+    stats socket /var/run/haproxy/admin.sock mode 600 level admin
+    stats timeout 2m
 
 defaults
     log global
@@ -58,6 +60,15 @@ frontend tcp-in_{{ service }}
 {% for frontend in frontends -%}
 backend {{ service }}_{{ frontend }}
     balance leastconn
+    {% if backend_options -%}
+    {% if backend_options[service] -%}
+    {% for option in backend_options[service] -%}
+    {% for key, value in option.items() -%}
+    {{ key }} {{ value }}
+    {% endfor -%}
+    {% endfor -%}
+    {% endif -%}
+    {% endif -%}
     {% for unit, address in frontends[frontend]['backends'].items() -%}
     server {{ unit }} {{ address }}:{{ ports[1] }} check
     {% endfor %}

hooks/charmhelpers/core/host.py

@@ -191,7 +191,7 @@ def service_pause(service_name, init_dir="/etc/init", initd_dir="/etc/init.d",
     upstart_file = os.path.join(init_dir, "{}.conf".format(service_name))
     sysv_file = os.path.join(initd_dir, service_name)
     if init_is_systemd():
-        service('disable', service_name)
+        service('mask', service_name)
     elif os.path.exists(upstart_file):
         override_path = os.path.join(
             init_dir, '{}.override'.format(service_name))
@@ -224,7 +224,7 @@ def service_resume(service_name, init_dir="/etc/init",
     upstart_file = os.path.join(init_dir, "{}.conf".format(service_name))
     sysv_file = os.path.join(initd_dir, service_name)
     if init_is_systemd():
-        service('enable', service_name)
+        service('unmask', service_name)
     elif os.path.exists(upstart_file):
         override_path = os.path.join(
             init_dir, '{}.override'.format(service_name))

test-requirements.txt

@@ -11,15 +11,17 @@ requests==2.6.0
 # Liberty client lower constraints
 amulet>=1.14.3,<2.0
 bundletester>=0.6.1,<1.0
-python-ceilometerclient>=1.5.0,<2.0
-python-cinderclient>=1.4.0,<2.0
-python-glanceclient>=1.1.0,<2.0
-python-heatclient>=0.8.0,<1.0
-python-keystoneclient>=1.7.1,<2.0
-python-neutronclient>=3.1.0,<4.0
-python-novaclient>=2.30.1,<3.0
-python-openstackclient>=1.7.0,<2.0
-python-swiftclient>=2.6.0,<3.0
+python-ceilometerclient>=1.5.0
+python-cinderclient>=1.4.0
+python-glanceclient>=1.1.0
+python-heatclient>=0.8.0
+python-keystoneclient>=1.7.1
+python-neutronclient>=3.1.0
+python-novaclient>=2.30.1
+python-openstackclient>=1.7.0
+python-swiftclient>=2.6.0
 pika>=0.10.0,<1.0
 distro-info
 # END: Amulet OpenStack Charm Helper Requirements
+# NOTE: workaround for 14.04 pip/tox
+pytz

tests/basic_deployment.py

@@ -16,10 +16,7 @@
 
 import amulet
 import keystoneclient
-import subprocess
 import swiftclient
-import json
-import time
 from charmhelpers.contrib.openstack.amulet.deployment import (
     OpenStackAmuletDeployment
 )
@@ -124,32 +121,6 @@ class CephRadosGwBasicDeployment(OpenStackAmuletDeployment):
                    'ceph': ceph_config}
         super(CephRadosGwBasicDeployment, self)._configure_services(configs)
 
-    def _run_action(self, unit_id, action, *args):
-        command = ["juju", "action", "do", "--format=json", unit_id, action]
-        command.extend(args)
-        print("Running command: %s\n" % " ".join(command))
-        output = subprocess.check_output(command)
-        output_json = output.decode(encoding="UTF-8")
-        data = json.loads(output_json)
-        action_id = data[u'Action queued with id']
-        return action_id
-
-    def _wait_on_action(self, action_id):
-        command = ["juju", "action", "fetch", "--format=json", action_id]
-        while True:
-            try:
-                output = subprocess.check_output(command)
-            except Exception as e:
-                print(e)
-                return False
-            output_json = output.decode(encoding="UTF-8")
-            data = json.loads(output_json)
-            if data[u"status"] == "completed":
-                return True
-            elif data[u"status"] == "failed":
-                return False
-            time.sleep(2)
-
     def _initialize_tests(self):
         """Perform final initialization before tests get run."""
         # Access the sentries for inspecting service units
@@ -715,16 +686,15 @@ class CephRadosGwBasicDeployment(OpenStackAmuletDeployment):
         """The services can be paused and resumed. """
         u.log.debug('Checking pause and resume actions...')
         unit = self.ceph_radosgw_sentry
-        unit_name = unit.info['unit_name']
 
         assert u.status_get(unit)[0] == "active"
 
-        action_id = self._run_action(unit_name, "pause")
-        assert self._wait_on_action(action_id), "Pause action failed."
+        action_id = u.run_action(unit, "pause")
+        assert u.wait_on_action(action_id), "Pause action failed."
         assert u.status_get(unit)[0] == "maintenance"
 
-        action_id = self._run_action(unit_name, "resume")
-        assert self._wait_on_action(action_id), "Resume action failed."
+        action_id = u.run_action(unit, "resume")
+        assert u.wait_on_action(action_id), "Resume action failed."
         assert u.status_get(unit)[0] == "active"
         u.log.debug('OK')
 

tests/charmhelpers/contrib/openstack/amulet/utils.py

@@ -547,7 +547,7 @@ class OpenStackAmuletUtils(AmuletUtils):
         """Create the specified instance."""
         self.log.debug('Creating instance '
                        '({}|{}|{})'.format(instance_name, image_name, flavor))
-        image = nova.images.find(name=image_name)
+        image = nova.glance.find_image(image_name)
         flavor = nova.flavors.find(name=flavor)
         instance = nova.servers.create(name=instance_name, image=image,
                                        flavor=flavor)

tests/charmhelpers/core/host.py

@@ -191,7 +191,7 @@ def service_pause(service_name, init_dir="/etc/init", initd_dir="/etc/init.d",
     upstart_file = os.path.join(init_dir, "{}.conf".format(service_name))
     sysv_file = os.path.join(initd_dir, service_name)
     if init_is_systemd():
-        service('disable', service_name)
+        service('mask', service_name)
     elif os.path.exists(upstart_file):
         override_path = os.path.join(
             init_dir, '{}.override'.format(service_name))
@@ -224,7 +224,7 @@ def service_resume(service_name, init_dir="/etc/init",
     upstart_file = os.path.join(init_dir, "{}.conf".format(service_name))
     sysv_file = os.path.join(initd_dir, service_name)
     if init_is_systemd():
-        service('enable', service_name)
+        service('unmask', service_name)
     elif os.path.exists(upstart_file):
         override_path = os.path.join(
             init_dir, '{}.override'.format(service_name))

unit_tests/test_ceph_radosgw_context.py

@@ -37,6 +37,7 @@ class HAProxyContextTests(CharmTestCase):
         self.relation_get.side_effect = self.test_relation.get
         self.config.side_effect = self.test_config.get
 
+    @patch('charmhelpers.contrib.openstack.context.mkdir')
     @patch('charmhelpers.contrib.openstack.context.unit_get')
     @patch('charmhelpers.contrib.openstack.context.local_unit')
     @patch('charmhelpers.contrib.openstack.context.get_host_ip')
@@ -45,7 +46,7 @@ class HAProxyContextTests(CharmTestCase):
     @patch('charmhelpers.contrib.openstack.context.relation_ids')
     @patch('charmhelpers.contrib.hahelpers.cluster.relation_ids')
     def test_ctxt(self, _harelation_ids, _ctxtrelation_ids, _haconfig,
-                  _ctxtconfig, _get_host_ip, _local_unit, _unit_get):
+                  _ctxtconfig, _get_host_ip, _local_unit, _unit_get, _mkdir):
         _get_host_ip.return_value = '10.0.0.10'
         _unit_get.return_value = '10.0.0.10'
         _ctxtconfig.side_effect = self.test_config.get