[coreycb,r=james-page] Add amulet tests.

Makefile

@@ -2,16 +2,25 @@
 PYTHON := /usr/bin/env python
 
 lint:
-	@flake8 --exclude hooks/charmhelpers hooks
+	@flake8 --exclude hooks/charmhelpers hooks tests
 	@charm proof || true
 
+test:
+	@echo Starting Amulet tests...
+	# coreycb note: The -v should only be temporary until Amulet sends
+	# raise_status() messages to stderr:
+	#   https://bugs.launchpad.net/amulet/+bug/1320357
+	@juju test -v -p AMULET_HTTP_PROXY --timeout 900 \
+        00-setup 14-basic-precise-icehouse 15-basic-trusty-icehouse
+
 bin/charm_helpers_sync.py:
 	@mkdir -p bin
 	@bzr cat lp:charm-helpers/tools/charm_helpers_sync/charm_helpers_sync.py \
         > bin/charm_helpers_sync.py
 
 sync: bin/charm_helpers_sync.py
-	$(PYTHON) bin/charm_helpers_sync.py -c charm-helpers-sync.yaml
+	$(PYTHON) bin/charm_helpers_sync.py -c charm-helpers-hooks.yaml
+	$(PYTHON) bin/charm_helpers_sync.py -c charm-helpers-tests.yaml
 
 publish: lint
 	bzr push lp:charms/ceph-osd

charm-helpers-tests.yaml

@@ -0,0 +1,5 @@
+branch: lp:charm-helpers
+destination: tests/charmhelpers
+include:
+    - contrib.amulet
+    - contrib.openstack.amulet

hooks/charmhelpers/contrib/network/ip.py

@@ -57,6 +57,8 @@ def get_address_in_network(network, fallback=None, fatal=False):
         else:
             if fatal:
                 not_found_error_out()
+            else:
+                return None
 
     _validate_cidr(network)
     network = netaddr.IPNetwork(network)

templates/ceph.conf

@@ -1,24 +1,24 @@
 [global]
 {% if old_auth %}
- auth supported = {{ auth_supported }}
+auth supported = {{ auth_supported }}
 {% else %}
- auth cluster required = {{ auth_supported }}
- auth service required = {{ auth_supported }}
- auth client required = {{ auth_supported }}
+auth cluster required = {{ auth_supported }}
+auth service required = {{ auth_supported }}
+auth client required = {{ auth_supported }}
 {% endif %}
- keyring = /etc/ceph/$cluster.$name.keyring
- mon host = {{ mon_hosts }}
- fsid = {{ fsid }}
+keyring = /etc/ceph/$cluster.$name.keyring
+mon host = {{ mon_hosts }}
+fsid = {{ fsid }}
 
- log to syslog = {{ use_syslog }}
- err to syslog = {{ use_syslog }}
- clog to syslog = {{ use_syslog }}
+log to syslog = {{ use_syslog }}
+err to syslog = {{ use_syslog }}
+clog to syslog = {{ use_syslog }}
 
 {%- if ceph_public_network is string %}
- public network = {{ ceph_public_network }}
+public network = {{ ceph_public_network }}
 {%- endif %}
 {%- if ceph_cluster_network is string %}
- cluster network = {{ ceph_cluster_network }}
+cluster network = {{ ceph_cluster_network }}
 {%- endif %}
 
 {% if public_addr %}
@@ -30,13 +30,13 @@ cluster addr = {{ cluster_addr }}
 
 
 [mon]
- keyring = /var/lib/ceph/mon/$cluster-$id/keyring
+keyring = /var/lib/ceph/mon/$cluster-$id/keyring
 
 [mds]
- keyring = /var/lib/ceph/mds/$cluster-$id/keyring
+keyring = /var/lib/ceph/mds/$cluster-$id/keyring
 
 [osd]
- keyring = /var/lib/ceph/osd/$cluster-$id/keyring
- osd journal size = {{ osd_journal_size }}
- filestore xattr use omap = true
+keyring = /var/lib/ceph/osd/$cluster-$id/keyring
+osd journal size = {{ osd_journal_size }}
+filestore xattr use omap = true
 

tests/00-setup

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+sudo add-apt-repository --yes ppa:juju/stable
+sudo apt-get update --yes
+sudo apt-get install --yes python-amulet \
+                           python-keystoneclient \
+                           python-glanceclient \
+                           python-novaclient

tests/14-basic-precise-icehouse

@@ -0,0 +1,11 @@
+#!/usr/bin/python
+
+"""Amulet tests on a basic ceph-osd deployment on precise-icehouse."""
+
+from basic_deployment import CephOsdBasicDeployment
+
+if __name__ == '__main__':
+    deployment = CephOsdBasicDeployment(series='precise',
+                                     openstack='cloud:precise-icehouse',
+                                     source='cloud:precise-updates/icehouse')
+    deployment.run_tests()

tests/15-basic-trusty-icehouse

@@ -0,0 +1,9 @@
+#!/usr/bin/python
+
+"""Amulet tests on a basic ceph-osd deployment on trusty-icehouse."""
+
+from basic_deployment import CephOsdBasicDeployment
+
+if __name__ == '__main__':
+    deployment = CephOsdBasicDeployment(series='trusty')
+    deployment.run_tests()

tests/README

@@ -0,0 +1,53 @@
+This directory provides Amulet tests that focus on verification of ceph-osd
+deployments.
+
+In order to run tests, you'll need charm-tools installed (in addition to
+juju, of course):
+    sudo add-apt-repository ppa:juju/stable
+    sudo apt-get update
+    sudo apt-get install charm-tools
+
+If you use a web proxy server to access the web, you'll need to set the
+AMULET_HTTP_PROXY environment variable to the http URL of the proxy server.
+
+The following examples demonstrate different ways that tests can be executed.
+All examples are run from the charm's root directory.
+
+  * To run all tests (starting with 00-setup):
+
+      make test
+
+  * To run a specific test module (or modules):
+
+      juju test -v -p AMULET_HTTP_PROXY 15-basic-trusty-icehouse
+
+  * To run a specific test module (or modules), and keep the environment
+    deployed after a failure:
+
+      juju test --set-e -v -p AMULET_HTTP_PROXY 15-basic-trusty-icehouse
+
+  * To re-run a test module against an already deployed environment (one
+    that was deployed by a previous call to 'juju test --set-e'):
+
+      ./tests/15-basic-trusty-icehouse
+
+For debugging and test development purposes, all code should be idempotent.
+In other words, the code should have the ability to be re-run without changing
+the results beyond the initial run.  This enables editing and re-running of a
+test module against an already deployed environment, as described above.
+
+Manual debugging tips:
+
+  * Set the following env vars before using the OpenStack CLI as admin:
+      export OS_AUTH_URL=http://`juju-deployer -f keystone 2>&1 | tail -n 1`:5000/v2.0
+      export OS_TENANT_NAME=admin
+      export OS_USERNAME=admin
+      export OS_PASSWORD=openstack
+      export OS_REGION_NAME=RegionOne
+
+  * Set the following env vars before using the OpenStack CLI as demoUser:
+      export OS_AUTH_URL=http://`juju-deployer -f keystone 2>&1 | tail -n 1`:5000/v2.0
+      export OS_TENANT_NAME=demoTenant
+      export OS_USERNAME=demoUser
+      export OS_PASSWORD=password
+      export OS_REGION_NAME=RegionOne

tests/basic_deployment.py

@@ -0,0 +1,281 @@
+#!/usr/bin/python import amulet
+
+import amulet
+from charmhelpers.contrib.openstack.amulet.deployment import (
+    OpenStackAmuletDeployment
+)
+from charmhelpers.contrib.openstack.amulet.utils import (  # noqa
+    OpenStackAmuletUtils,
+    DEBUG,
+    ERROR
+)
+
+# Use DEBUG to turn on debug logging
+u = OpenStackAmuletUtils(ERROR)
+
+
+class CephOsdBasicDeployment(OpenStackAmuletDeployment):
+    """Amulet tests on a basic ceph-osd deployment."""
+
+    def __init__(self, series=None, openstack=None, source=None,
+                 stable=False):
+        """Deploy the entire test environment."""
+        super(CephOsdBasicDeployment, self).__init__(series, openstack,
+                                                     source, stable)
+        self._add_services()
+        self._add_relations()
+        self._configure_services()
+        self._deploy()
+        self._initialize_tests()
+
+    def _add_services(self):
+        """Add services
+
+           Add the services that we're testing, where ceph-osd is local,
+           and the rest of the service are from lp branches that are
+           compatible with the local charm (e.g. stable or next).
+           """
+        this_service = {'name': 'ceph-osd'}
+        other_services = [{'name': 'ceph', 'units': 3}, {'name': 'mysql'},
+                          {'name': 'keystone'}, {'name': 'rabbitmq-server'},
+                          {'name': 'nova-compute'}, {'name': 'glance'},
+                          {'name': 'cinder'}]
+        super(CephOsdBasicDeployment, self)._add_services(this_service,
+                                                          other_services)
+
+    def _add_relations(self):
+        """Add all of the relations for the services."""
+        relations = {
+            'nova-compute:shared-db': 'mysql:shared-db',
+            'nova-compute:amqp': 'rabbitmq-server:amqp',
+            'nova-compute:image-service': 'glance:image-service',
+            'nova-compute:ceph': 'ceph:client',
+            'keystone:shared-db': 'mysql:shared-db',
+            'glance:shared-db': 'mysql:shared-db',
+            'glance:identity-service': 'keystone:identity-service',
+            'glance:amqp': 'rabbitmq-server:amqp',
+            'glance:ceph': 'ceph:client',
+            'cinder:shared-db': 'mysql:shared-db',
+            'cinder:identity-service': 'keystone:identity-service',
+            'cinder:amqp': 'rabbitmq-server:amqp',
+            'cinder:image-service': 'glance:image-service',
+            'cinder:ceph': 'ceph:client',
+            'ceph-osd:mon': 'ceph:osd'
+        }
+        super(CephOsdBasicDeployment, self)._add_relations(relations)
+
+    def _configure_services(self):
+        """Configure all of the services."""
+        keystone_config = {'admin-password': 'openstack',
+                           'admin-token': 'ubuntutesting'}
+        mysql_config = {'dataset-size': '50%'}
+        cinder_config = {'block-device': 'None', 'glance-api-version': '2'}
+        ceph_config = {
+            'monitor-count': '3',
+            'auth-supported': 'none',
+            'fsid': '6547bd3e-1397-11e2-82e5-53567c8d32dc',
+            'monitor-secret': 'AQCXrnZQwI7KGBAAiPofmKEXKxu5bUzoYLVkbQ==',
+            'osd-reformat': 'yes',
+            'ephemeral-unmount': '/mnt',
+            'osd-devices': '/dev/vdb /srv/ceph'
+        }
+        ceph_osd_config = {
+            'osd-reformat': 'yes',
+            'ephemeral-unmount': '/mnt',
+            'osd-devices': '/dev/vdb /srv/ceph'
+        }
+
+        configs = {'keystone': keystone_config,
+                   'mysql': mysql_config,
+                   'cinder': cinder_config,
+                   'ceph': ceph_config,
+                   'ceph-osd': ceph_osd_config}
+        super(CephOsdBasicDeployment, self)._configure_services(configs)
+
+    def _initialize_tests(self):
+        """Perform final initialization before tests get run."""
+        # Access the sentries for inspecting service units
+        self.mysql_sentry = self.d.sentry.unit['mysql/0']
+        self.keystone_sentry = self.d.sentry.unit['keystone/0']
+        self.rabbitmq_sentry = self.d.sentry.unit['rabbitmq-server/0']
+        self.nova_compute_sentry = self.d.sentry.unit['nova-compute/0']
+        self.glance_sentry = self.d.sentry.unit['glance/0']
+        self.cinder_sentry = self.d.sentry.unit['cinder/0']
+        self.ceph0_sentry = self.d.sentry.unit['ceph/0']
+        self.ceph1_sentry = self.d.sentry.unit['ceph/1']
+        self.ceph2_sentry = self.d.sentry.unit['ceph/2']
+        self.ceph_osd_sentry = self.d.sentry.unit['ceph-osd/0']
+
+        # Authenticate admin with keystone
+        self.keystone = u.authenticate_keystone_admin(self.keystone_sentry,
+                                                      user='admin',
+                                                      password='openstack',
+                                                      tenant='admin')
+
+        # Authenticate admin with glance endpoint
+        self.glance = u.authenticate_glance_admin(self.keystone)
+
+        # Create a demo tenant/role/user
+        self.demo_tenant = 'demoTenant'
+        self.demo_role = 'demoRole'
+        self.demo_user = 'demoUser'
+        if not u.tenant_exists(self.keystone, self.demo_tenant):
+            tenant = self.keystone.tenants.create(tenant_name=self.demo_tenant,
+                                                  description='demo tenant',
+                                                  enabled=True)
+            self.keystone.roles.create(name=self.demo_role)
+            self.keystone.users.create(name=self.demo_user,
+                                       password='password',
+                                       tenant_id=tenant.id,
+                                       email='demo@demo.com')
+
+        # Authenticate demo user with keystone
+        self.keystone_demo = u.authenticate_keystone_user(self.keystone,
+                                                          self.demo_user,
+                                                          'password',
+                                                          self.demo_tenant)
+
+        # Authenticate demo user with nova-api
+        self.nova_demo = u.authenticate_nova_user(self.keystone,
+                                                  self.demo_user,
+                                                  'password',
+                                                  self.demo_tenant)
+
+    def _ceph_osd_id(self, index):
+        """Produce a shell command that will return a ceph-osd id."""
+        return "`initctl list | grep 'ceph-osd ' | awk 'NR=={} {{ print $2 }}' | grep -o '[0-9]*'`".format(index + 1)  # noqa
+
+    def test_services(self):
+        """Verify the expected services are running on the service units."""
+        commands = {
+            self.mysql_sentry: ['status mysql'],
+            self.rabbitmq_sentry: ['sudo service rabbitmq-server status'],
+            self.nova_compute_sentry: ['status nova-compute'],
+            self.keystone_sentry: ['status keystone'],
+            self.glance_sentry: ['status glance-registry',
+                                 'status glance-api'],
+            self.cinder_sentry: ['status cinder-api',
+                                 'status cinder-scheduler',
+                                 'status cinder-volume']
+        }
+        ceph_services = ['status ceph-mon-all',
+                         'status ceph-mon id=`hostname`']
+        ceph_osd0 = 'status ceph-osd id={}'.format(self._ceph_osd_id(0))
+        ceph_osd1 = 'status ceph-osd id={}'.format(self._ceph_osd_id(1))
+        ceph_osd_services = [ceph_osd0, ceph_osd1, 'status ceph-osd-all']
+        ceph_services.extend(ceph_osd_services)
+        commands[self.ceph0_sentry] = ceph_services
+        commands[self.ceph1_sentry] = ceph_services
+        commands[self.ceph2_sentry] = ceph_services
+        commands[self.ceph_osd_sentry] = ceph_osd_services
+
+        ret = u.validate_services(commands)
+        if ret:
+            amulet.raise_status(amulet.FAIL, msg=ret)
+
+    def test_ceph_osd_ceph_relation(self):
+        """Verify the ceph-osd to ceph relation data."""
+        unit = self.ceph_osd_sentry
+        relation = ['mon', 'ceph:osd']
+        expected = {
+            'private-address': u.valid_ip
+        }
+
+        ret = u.validate_relation_data(unit, relation, expected)
+        if ret:
+            message = u.relation_error('ceph-osd to ceph', ret)
+            amulet.raise_status(amulet.FAIL, msg=message)
+
+    def test_ceph0_to_ceph_osd_relation(self):
+        """Verify the ceph0 to ceph-osd relation data."""
+        unit = self.ceph0_sentry
+        relation = ['osd', 'ceph-osd:mon']
+        expected = {
+            'osd_bootstrap_key': u.not_null,
+            'private-address': u.valid_ip,
+            'auth': u'none',
+            'ceph-public-address': u.valid_ip,
+            'fsid': u'6547bd3e-1397-11e2-82e5-53567c8d32dc'
+        }
+
+        ret = u.validate_relation_data(unit, relation, expected)
+        if ret:
+            message = u.relation_error('ceph0 to ceph-osd', ret)
+            amulet.raise_status(amulet.FAIL, msg=message)
+
+    def test_ceph1_to_ceph_osd_relation(self):
+        """Verify the ceph1 to ceph-osd relation data."""
+        unit = self.ceph1_sentry
+        relation = ['osd', 'ceph-osd:mon']
+        expected = {
+            'osd_bootstrap_key': u.not_null,
+            'private-address': u.valid_ip,
+            'auth': u'none',
+            'ceph-public-address': u.valid_ip,
+            'fsid': u'6547bd3e-1397-11e2-82e5-53567c8d32dc'
+        }
+
+        ret = u.validate_relation_data(unit, relation, expected)
+        if ret:
+            message = u.relation_error('ceph1 to ceph-osd', ret)
+            amulet.raise_status(amulet.FAIL, msg=message)
+
+    def test_ceph2_to_ceph_osd_relation(self):
+        """Verify the ceph2 to ceph-osd relation data."""
+        unit = self.ceph2_sentry
+        relation = ['osd', 'ceph-osd:mon']
+        expected = {
+            'osd_bootstrap_key': u.not_null,
+            'private-address': u.valid_ip,
+            'auth': u'none',
+            'ceph-public-address': u.valid_ip,
+            'fsid': u'6547bd3e-1397-11e2-82e5-53567c8d32dc'
+        }
+
+        ret = u.validate_relation_data(unit, relation, expected)
+        if ret:
+            message = u.relation_error('ceph2 to ceph-osd', ret)
+            amulet.raise_status(amulet.FAIL, msg=message)
+
+    def test_ceph_config(self):
+        """Verify the data in the ceph config file."""
+        unit = self.ceph_osd_sentry
+        conf = '/etc/ceph/ceph.conf'
+        expected = {
+            'global': {
+                'auth cluster required': 'none',
+                'auth service required': 'none',
+                'auth client required': 'none',
+                'keyring': '/etc/ceph/$cluster.$name.keyring',
+                'fsid': '6547bd3e-1397-11e2-82e5-53567c8d32dc',
+                'log to syslog': 'false',
+                'err to syslog': 'false',
+                'clog to syslog': 'false'
+            },
+            'mon': {
+                'keyring': '/var/lib/ceph/mon/$cluster-$id/keyring'
+            },
+            'mds': {
+                'keyring': '/var/lib/ceph/mds/$cluster-$id/keyring'
+            },
+            'osd': {
+                'keyring': '/var/lib/ceph/osd/$cluster-$id/keyring',
+                'osd journal size': '1024',
+                'filestore xattr use omap': 'true'
+            },
+        }
+
+        for section, pairs in expected.iteritems():
+            ret = u.validate_config_data(unit, conf, section, pairs)
+            if ret:
+                message = "ceph config error: {}".format(ret)
+                amulet.raise_status(amulet.FAIL, msg=message)
+
+    def test_restart_on_config_change(self):
+        """Verify the specified services are restarted on config change."""
+        # NOTE(coreycb): Test not implemented but should it be? ceph-osd svcs
+        #                aren't restarted by charm after config change.  Should
+        #                they be restarted?
+        if self._get_openstack_release() >= self.precise_essex:
+            u.log.error("Test not implemented")
+            return

tests/charmhelpers/contrib/amulet/deployment.py

@@ -0,0 +1,77 @@
+import amulet
+
+import os
+
+
+class AmuletDeployment(object):
+    """Amulet deployment.
+
+       This class provides generic Amulet deployment and test runner
+       methods.
+       """
+
+    def __init__(self, series=None):
+        """Initialize the deployment environment."""
+        self.series = None
+
+        if series:
+            self.series = series
+            self.d = amulet.Deployment(series=self.series)
+        else:
+            self.d = amulet.Deployment()
+
+    def _add_services(self, this_service, other_services):
+        """Add services.
+
+           Add services to the deployment where this_service is the local charm
+           that we're testing and other_services are the other services that
+           are being used in the local amulet tests.
+           """
+        if this_service['name'] != os.path.basename(os.getcwd()):
+            s = this_service['name']
+            msg = "The charm's root directory name needs to be {}".format(s)
+            amulet.raise_status(amulet.FAIL, msg=msg)
+
+        if 'units' not in this_service:
+            this_service['units'] = 1
+
+        self.d.add(this_service['name'], units=this_service['units'])
+
+        for svc in other_services:
+            if 'location' in svc:
+                branch_location = svc['location']
+            elif self.series:
+                branch_location = 'cs:{}/{}'.format(self.series, svc['name']),
+            else:
+                branch_location = None
+
+            if 'units' not in svc:
+                svc['units'] = 1
+
+            self.d.add(svc['name'], charm=branch_location, units=svc['units'])
+
+    def _add_relations(self, relations):
+        """Add all of the relations for the services."""
+        for k, v in relations.iteritems():
+            self.d.relate(k, v)
+
+    def _configure_services(self, configs):
+        """Configure all of the services."""
+        for service, config in configs.iteritems():
+            self.d.configure(service, config)
+
+    def _deploy(self):
+        """Deploy environment and wait for all hooks to finish executing."""
+        try:
+            self.d.setup(timeout=900)
+            self.d.sentry.wait(timeout=900)
+        except amulet.helpers.TimeoutError:
+            amulet.raise_status(amulet.FAIL, msg="Deployment timed out")
+        except Exception:
+            raise
+
+    def run_tests(self):
+        """Run all of the methods that are prefixed with 'test_'."""
+        for test in dir(self):
+            if test.startswith('test_'):
+                getattr(self, test)()

tests/charmhelpers/contrib/amulet/utils.py

@@ -0,0 +1,176 @@
+import ConfigParser
+import io
+import logging
+import re
+import sys
+import time
+
+
+class AmuletUtils(object):
+    """Amulet utilities.
+
+       This class provides common utility functions that are used by Amulet
+       tests.
+       """
+
+    def __init__(self, log_level=logging.ERROR):
+        self.log = self.get_logger(level=log_level)
+
+    def get_logger(self, name="amulet-logger", level=logging.DEBUG):
+        """Get a logger object that will log to stdout."""
+        log = logging
+        logger = log.getLogger(name)
+        fmt = log.Formatter("%(asctime)s %(funcName)s "
+                            "%(levelname)s: %(message)s")
+
+        handler = log.StreamHandler(stream=sys.stdout)
+        handler.setLevel(level)
+        handler.setFormatter(fmt)
+
+        logger.addHandler(handler)
+        logger.setLevel(level)
+
+        return logger
+
+    def valid_ip(self, ip):
+        if re.match(r"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$", ip):
+            return True
+        else:
+            return False
+
+    def valid_url(self, url):
+        p = re.compile(
+            r'^(?:http|ftp)s?://'
+            r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|'  # noqa
+            r'localhost|'
+            r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})'
+            r'(?::\d+)?'
+            r'(?:/?|[/?]\S+)$',
+            re.IGNORECASE)
+        if p.match(url):
+            return True
+        else:
+            return False
+
+    def validate_services(self, commands):
+        """Validate services.
+
+           Verify the specified services are running on the corresponding
+           service units.
+           """
+        for k, v in commands.iteritems():
+            for cmd in v:
+                output, code = k.run(cmd)
+                if code != 0:
+                    return "command `{}` returned {}".format(cmd, str(code))
+        return None
+
+    def _get_config(self, unit, filename):
+        """Get a ConfigParser object for parsing a unit's config file."""
+        file_contents = unit.file_contents(filename)
+        config = ConfigParser.ConfigParser()
+        config.readfp(io.StringIO(file_contents))
+        return config
+
+    def validate_config_data(self, sentry_unit, config_file, section,
+                             expected):
+        """Validate config file data.
+
+           Verify that the specified section of the config file contains
+           the expected option key:value pairs.
+           """
+        config = self._get_config(sentry_unit, config_file)
+
+        if section != 'DEFAULT' and not config.has_section(section):
+            return "section [{}] does not exist".format(section)
+
+        for k in expected.keys():
+            if not config.has_option(section, k):
+                return "section [{}] is missing option {}".format(section, k)
+            if config.get(section, k) != expected[k]:
+                return "section [{}] {}:{} != expected {}:{}".format(
+                       section, k, config.get(section, k), k, expected[k])
+        return None
+
+    def _validate_dict_data(self, expected, actual):
+        """Validate dictionary data.
+
+           Compare expected dictionary data vs actual dictionary data.
+           The values in the 'expected' dictionary can be strings, bools, ints,
+           longs, or can be a function that evaluate a variable and returns a
+           bool.
+           """
+        for k, v in expected.iteritems():
+            if k in actual:
+                if (isinstance(v, basestring) or
+                        isinstance(v, bool) or
+                        isinstance(v, (int, long))):
+                    if v != actual[k]:
+                        return "{}:{}".format(k, actual[k])
+                elif not v(actual[k]):
+                    return "{}:{}".format(k, actual[k])
+            else:
+                return "key '{}' does not exist".format(k)
+        return None
+
+    def validate_relation_data(self, sentry_unit, relation, expected):
+        """Validate actual relation data based on expected relation data."""
+        actual = sentry_unit.relation(relation[0], relation[1])
+        self.log.debug('actual: {}'.format(repr(actual)))
+        return self._validate_dict_data(expected, actual)
+
+    def _validate_list_data(self, expected, actual):
+        """Compare expected list vs actual list data."""
+        for e in expected:
+            if e not in actual:
+                return "expected item {} not found in actual list".format(e)
+        return None
+
+    def not_null(self, string):
+        if string is not None:
+            return True
+        else:
+            return False
+
+    def _get_file_mtime(self, sentry_unit, filename):
+        """Get last modification time of file."""
+        return sentry_unit.file_stat(filename)['mtime']
+
+    def _get_dir_mtime(self, sentry_unit, directory):
+        """Get last modification time of directory."""
+        return sentry_unit.directory_stat(directory)['mtime']
+
+    def _get_proc_start_time(self, sentry_unit, service, pgrep_full=False):
+        """Get process' start time.
+
+           Determine start time of the process based on the last modification
+           time of the /proc/pid directory. If pgrep_full is True, the process
+           name is matched against the full command line.
+           """
+        if pgrep_full:
+            cmd = 'pgrep -o -f {}'.format(service)
+        else:
+            cmd = 'pgrep -o {}'.format(service)
+        proc_dir = '/proc/{}'.format(sentry_unit.run(cmd)[0].strip())
+        return self._get_dir_mtime(sentry_unit, proc_dir)
+
+    def service_restarted(self, sentry_unit, service, filename,
+                          pgrep_full=False, sleep_time=20):
+        """Check if service was restarted.
+
+           Compare a service's start time vs a file's last modification time
+           (such as a config file for that service) to determine if the service
+           has been restarted.
+           """
+        time.sleep(sleep_time)
+        if (self._get_proc_start_time(sentry_unit, service, pgrep_full) >=
+                self._get_file_mtime(sentry_unit, filename)):
+            return True
+        else:
+            return False
+
+    def relation_error(self, name, data):
+        return 'unexpected relation data in {} - {}'.format(name, data)
+
+    def endpoint_error(self, name, data):
+        return 'unexpected endpoint data in {} - {}'.format(name, data)

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

@@ -0,0 +1,91 @@
+from charmhelpers.contrib.amulet.deployment import (
+    AmuletDeployment
+)
+
+
+class OpenStackAmuletDeployment(AmuletDeployment):
+    """OpenStack amulet deployment.
+
+       This class inherits from AmuletDeployment and has additional support
+       that is specifically for use by OpenStack charms.
+       """
+
+    def __init__(self, series=None, openstack=None, source=None, stable=True):
+        """Initialize the deployment environment."""
+        super(OpenStackAmuletDeployment, self).__init__(series)
+        self.openstack = openstack
+        self.source = source
+        self.stable = stable
+        # Note(coreycb): this needs to be changed when new next branches come
+        # out.
+        self.current_next = "trusty"
+
+    def _determine_branch_locations(self, other_services):
+        """Determine the branch locations for the other services.
+
+           Determine if the local branch being tested is derived from its
+           stable or next (dev) branch, and based on this, use the corresonding
+           stable or next branches for the other_services."""
+        base_charms = ['mysql', 'mongodb', 'rabbitmq-server']
+
+        if self.stable:
+            for svc in other_services:
+                temp = 'lp:charms/{}'
+                svc['location'] = temp.format(svc['name'])
+        else:
+            for svc in other_services:
+                if svc['name'] in base_charms:
+                    temp = 'lp:charms/{}'
+                    svc['location'] = temp.format(svc['name'])
+                else:
+                    temp = 'lp:~openstack-charmers/charms/{}/{}/next'
+                    svc['location'] = temp.format(self.current_next,
+                                                  svc['name'])
+        return other_services
+
+    def _add_services(self, this_service, other_services):
+        """Add services to the deployment and set openstack-origin/source."""
+        other_services = self._determine_branch_locations(other_services)
+
+        super(OpenStackAmuletDeployment, self)._add_services(this_service,
+                                                             other_services)
+
+        services = other_services
+        services.append(this_service)
+        use_source = ['mysql', 'mongodb', 'rabbitmq-server', 'ceph',
+                      'ceph-osd', 'ceph-radosgw']
+
+        if self.openstack:
+            for svc in services:
+                if svc['name'] not in use_source:
+                    config = {'openstack-origin': self.openstack}
+                    self.d.configure(svc['name'], config)
+
+        if self.source:
+            for svc in services:
+                if svc['name'] in use_source:
+                    config = {'source': self.source}
+                    self.d.configure(svc['name'], config)
+
+    def _configure_services(self, configs):
+        """Configure all of the services."""
+        for service, config in configs.iteritems():
+            self.d.configure(service, config)
+
+    def _get_openstack_release(self):
+        """Get openstack release.
+
+           Return an integer representing the enum value of the openstack
+           release.
+           """
+        (self.precise_essex, self.precise_folsom, self.precise_grizzly,
+         self.precise_havana, self.precise_icehouse,
+         self.trusty_icehouse) = range(6)
+        releases = {
+            ('precise', None): self.precise_essex,
+            ('precise', 'cloud:precise-folsom'): self.precise_folsom,
+            ('precise', 'cloud:precise-grizzly'): self.precise_grizzly,
+            ('precise', 'cloud:precise-havana'): self.precise_havana,
+            ('precise', 'cloud:precise-icehouse'): self.precise_icehouse,
+            ('trusty', None): self.trusty_icehouse}
+        return releases[(self.series, self.openstack)]

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

@@ -0,0 +1,276 @@
+import logging
+import os
+import time
+import urllib
+
+import glanceclient.v1.client as glance_client
+import keystoneclient.v2_0 as keystone_client
+import novaclient.v1_1.client as nova_client
+
+from charmhelpers.contrib.amulet.utils import (
+    AmuletUtils
+)
+
+DEBUG = logging.DEBUG
+ERROR = logging.ERROR
+
+
+class OpenStackAmuletUtils(AmuletUtils):
+    """OpenStack amulet utilities.
+
+       This class inherits from AmuletUtils and has additional support
+       that is specifically for use by OpenStack charms.
+       """
+
+    def __init__(self, log_level=ERROR):
+        """Initialize the deployment environment."""
+        super(OpenStackAmuletUtils, self).__init__(log_level)
+
+    def validate_endpoint_data(self, endpoints, admin_port, internal_port,
+                               public_port, expected):
+        """Validate endpoint data.
+
+           Validate actual endpoint data vs expected endpoint data. The ports
+           are used to find the matching endpoint.
+           """
+        found = False
+        for ep in endpoints:
+            self.log.debug('endpoint: {}'.format(repr(ep)))
+            if (admin_port in ep.adminurl and
+                    internal_port in ep.internalurl and
+                    public_port in ep.publicurl):
+                found = True
+                actual = {'id': ep.id,
+                          'region': ep.region,
+                          'adminurl': ep.adminurl,
+                          'internalurl': ep.internalurl,
+                          'publicurl': ep.publicurl,
+                          'service_id': ep.service_id}
+                ret = self._validate_dict_data(expected, actual)
+                if ret:
+                    return 'unexpected endpoint data - {}'.format(ret)
+
+        if not found:
+            return 'endpoint not found'
+
+    def validate_svc_catalog_endpoint_data(self, expected, actual):
+        """Validate service catalog endpoint data.
+
+           Validate a list of actual service catalog endpoints vs a list of
+           expected service catalog endpoints.
+           """
+        self.log.debug('actual: {}'.format(repr(actual)))
+        for k, v in expected.iteritems():
+            if k in actual:
+                ret = self._validate_dict_data(expected[k][0], actual[k][0])
+                if ret:
+                    return self.endpoint_error(k, ret)
+            else:
+                return "endpoint {} does not exist".format(k)
+        return ret
+
+    def validate_tenant_data(self, expected, actual):
+        """Validate tenant data.
+
+           Validate a list of actual tenant data vs list of expected tenant
+           data.
+           """
+        self.log.debug('actual: {}'.format(repr(actual)))
+        for e in expected:
+            found = False
+            for act in actual:
+                a = {'enabled': act.enabled, 'description': act.description,
+                     'name': act.name, 'id': act.id}
+                if e['name'] == a['name']:
+                    found = True
+                    ret = self._validate_dict_data(e, a)
+                    if ret:
+                        return "unexpected tenant data - {}".format(ret)
+            if not found:
+                return "tenant {} does not exist".format(e['name'])
+        return ret
+
+    def validate_role_data(self, expected, actual):
+        """Validate role data.
+
+           Validate a list of actual role data vs a list of expected role
+           data.
+           """
+        self.log.debug('actual: {}'.format(repr(actual)))
+        for e in expected:
+            found = False
+            for act in actual:
+                a = {'name': act.name, 'id': act.id}
+                if e['name'] == a['name']:
+                    found = True
+                    ret = self._validate_dict_data(e, a)
+                    if ret:
+                        return "unexpected role data - {}".format(ret)
+            if not found:
+                return "role {} does not exist".format(e['name'])
+        return ret
+
+    def validate_user_data(self, expected, actual):
+        """Validate user data.
+
+           Validate a list of actual user data vs a list of expected user
+           data.
+           """
+        self.log.debug('actual: {}'.format(repr(actual)))
+        for e in expected:
+            found = False
+            for act in actual:
+                a = {'enabled': act.enabled, 'name': act.name,
+                     'email': act.email, 'tenantId': act.tenantId,
+                     'id': act.id}
+                if e['name'] == a['name']:
+                    found = True
+                    ret = self._validate_dict_data(e, a)
+                    if ret:
+                        return "unexpected user data - {}".format(ret)
+            if not found:
+                return "user {} does not exist".format(e['name'])
+        return ret
+
+    def validate_flavor_data(self, expected, actual):
+        """Validate flavor data.
+
+           Validate a list of actual flavors vs a list of expected flavors.
+           """
+        self.log.debug('actual: {}'.format(repr(actual)))
+        act = [a.name for a in actual]
+        return self._validate_list_data(expected, act)
+
+    def tenant_exists(self, keystone, tenant):
+        """Return True if tenant exists."""
+        return tenant in [t.name for t in keystone.tenants.list()]
+
+    def authenticate_keystone_admin(self, keystone_sentry, user, password,
+                                    tenant):
+        """Authenticates admin user with the keystone admin endpoint."""
+        unit = keystone_sentry
+        service_ip = unit.relation('shared-db',
+                                   'mysql:shared-db')['private-address']
+        ep = "http://{}:35357/v2.0".format(service_ip.strip().decode('utf-8'))
+        return keystone_client.Client(username=user, password=password,
+                                      tenant_name=tenant, auth_url=ep)
+
+    def authenticate_keystone_user(self, keystone, user, password, tenant):
+        """Authenticates a regular user with the keystone public endpoint."""
+        ep = keystone.service_catalog.url_for(service_type='identity',
+                                              endpoint_type='publicURL')
+        return keystone_client.Client(username=user, password=password,
+                                      tenant_name=tenant, auth_url=ep)
+
+    def authenticate_glance_admin(self, keystone):
+        """Authenticates admin user with glance."""
+        ep = keystone.service_catalog.url_for(service_type='image',
+                                              endpoint_type='adminURL')
+        return glance_client.Client(ep, token=keystone.auth_token)
+
+    def authenticate_nova_user(self, keystone, user, password, tenant):
+        """Authenticates a regular user with nova-api."""
+        ep = keystone.service_catalog.url_for(service_type='identity',
+                                              endpoint_type='publicURL')
+        return nova_client.Client(username=user, api_key=password,
+                                  project_id=tenant, auth_url=ep)
+
+    def create_cirros_image(self, glance, image_name):
+        """Download the latest cirros image and upload it to glance."""
+        http_proxy = os.getenv('AMULET_HTTP_PROXY')
+        self.log.debug('AMULET_HTTP_PROXY: {}'.format(http_proxy))
+        if http_proxy:
+            proxies = {'http': http_proxy}
+            opener = urllib.FancyURLopener(proxies)
+        else:
+            opener = urllib.FancyURLopener()
+
+        f = opener.open("http://download.cirros-cloud.net/version/released")
+        version = f.read().strip()
+        cirros_img = "cirros-{}-x86_64-disk.img".format(version)
+        local_path = os.path.join('tests', cirros_img)
+
+        if not os.path.exists(local_path):
+            cirros_url = "http://{}/{}/{}".format("download.cirros-cloud.net",
+                                                  version, cirros_img)
+            opener.retrieve(cirros_url, local_path)
+        f.close()
+
+        with open(local_path) as f:
+            image = glance.images.create(name=image_name, is_public=True,
+                                         disk_format='qcow2',
+                                         container_format='bare', data=f)
+        count = 1
+        status = image.status
+        while status != 'active' and count < 10:
+            time.sleep(3)
+            image = glance.images.get(image.id)
+            status = image.status
+            self.log.debug('image status: {}'.format(status))
+            count += 1
+
+        if status != 'active':
+            self.log.error('image creation timed out')
+            return None
+
+        return image
+
+    def delete_image(self, glance, image):
+        """Delete the specified image."""
+        num_before = len(list(glance.images.list()))
+        glance.images.delete(image)
+
+        count = 1
+        num_after = len(list(glance.images.list()))
+        while num_after != (num_before - 1) and count < 10:
+            time.sleep(3)
+            num_after = len(list(glance.images.list()))
+            self.log.debug('number of images: {}'.format(num_after))
+            count += 1
+
+        if num_after != (num_before - 1):
+            self.log.error('image deletion timed out')
+            return False
+
+        return True
+
+    def create_instance(self, nova, image_name, instance_name, flavor):
+        """Create the specified instance."""
+        image = nova.images.find(name=image_name)
+        flavor = nova.flavors.find(name=flavor)
+        instance = nova.servers.create(name=instance_name, image=image,
+                                       flavor=flavor)
+
+        count = 1
+        status = instance.status
+        while status != 'ACTIVE' and count < 60:
+            time.sleep(3)
+            instance = nova.servers.get(instance.id)
+            status = instance.status
+            self.log.debug('instance status: {}'.format(status))
+            count += 1
+
+        if status != 'ACTIVE':
+            self.log.error('instance creation timed out')
+            return None
+
+        return instance
+
+    def delete_instance(self, nova, instance):
+        """Delete the specified instance."""
+        num_before = len(list(nova.servers.list()))
+        nova.servers.delete(instance)
+
+        count = 1
+        num_after = len(list(nova.servers.list()))
+        while num_after != (num_before - 1) and count < 10:
+            time.sleep(3)
+            num_after = len(list(nova.servers.list()))
+            self.log.debug('number of instances: {}'.format(num_after))
+            count += 1
+
+        if num_after != (num_before - 1):
+            self.log.error('instance deletion timed out')
+            return False
+
+        return True