retrieve project id to ignore from keystone

We currently allows only project uuid, but this is a pain for deployer.
Also the default is a project name which doesn't work...

This change queries keystone to retrieve project ids when the
ignore_projects list are names.

By default, if auth_type is not set, we keep the previous behavior to
not query keystone.

Change-Id: I270d080d3e65eb6b0cd823498a4dd37389c49221

5 files changed, 639 insertions, 6 deletions

diff --git a/ceilometermiddleware/swift.py b/ceilometermiddleware/swift.py
index 5cf2b0f..f267d2c 100644
--- a/ceilometermiddleware/swift.py
+++ b/ceilometermiddleware/swift.py
@@ -36,7 +36,7 @@ before "proxy-server" and add the following filter in the file:
     # set topic
     topic = notifications
     # skip metering of requests from listed project ids
-    ignore_projects = <proj_uuid>, <proj_uuid2>
+    ignore_projects = <proj_uuid>, <proj_uuid2>, <proj_name>
     # Whether to send events to messaging driver in a background thread
     nonblocking_notify = False
     # Queue size for sending notifications in background thread (0=unlimited).
@@ -44,11 +44,27 @@ before "proxy-server" and add the following filter in the file:
     send_queue_size = 1000
     # Logging level control
     log_level = WARNING
+
+    # All keystoneauth1 options can be set to query project name for
+    # ignore_projects option, here is just a example:
+    auth_type = password
+    auth_url = https://[::1]:5000
+    project_name = services
+    project_domain_name = Default
+    username = user
+    user_domain_name = Default
+    password = a_big_secret
+    interface = public
 """
 import datetime
 import functools
 import logging
 
+from keystoneauth1 import exceptions as ksa_exc
+from keystoneauth1.loading import adapter as ksa_adapter
+from keystoneauth1.loading import base as ksa_base
+from keystoneauth1.loading import session as ksa_session
+from keystoneclient.v3 import client as ks_client
 from oslo_config import cfg
 import oslo_messaging
 from oslo_utils import strutils
@@ -62,9 +78,19 @@ import six.moves.queue as queue
 import six.moves.urllib.parse as urlparse
 import threading
 
+
 LOG = logging.getLogger(__name__)
 
 
+def list_from_csv(comma_separated_str):
+    if comma_separated_str:
+        return list(
+            filter(lambda x: x,
+                   map(lambda x: x.strip(),
+                       comma_separated_str.split(','))))
+    return []
+
+
 def _log_and_ignore_error(fn):
     @functools.wraps(fn)
     def wrapper(*args, **kwargs):
@@ -106,17 +132,30 @@ class InputProxy(object):
         return line
 
 
+class KeystoneClientLoader(ksa_adapter.Adapter):
+    """Keystone client adapter loader.
+
+    Keystone client and Keystoneauth1 adapter take exactly the same options, so
+    it's safe to create a keystone client with keystoneauth adapter options.
+    """
+
+    @property
+    def plugin_class(self):
+        return ks_client.Client
+
+
 class Swift(object):
     """Swift middleware used for counting requests."""
 
     event_queue = None
     threadLock = threading.Lock()
 
+    DEFAULT_IGNORE_PROJECT_NAMES = ['services']
+
     def __init__(self, app, conf):
         self._app = app
-        self.ignore_projects = [
-            proj.strip() for proj in
-            conf.get('ignore_projects', 'gnocchi').split(',')]
+
+        self.ignore_projects = self._get_ignore_projects(conf)
 
         oslo_messaging.set_transport_defaults(conf.get('control_exchange',
                                                        'swift'))
@@ -156,6 +195,54 @@ class Swift(object):
                 self.start_sender_thread()
             Swift.threadLock.release()
 
+    def _get_ignore_projects(self, conf):
+        if 'auth_type' not in conf:
+            LOG.info("'auth_type' is not set assuming ignore_projects are "
+                     "only project uuid.")
+            return list_from_csv(conf.get('ignore_projects'))
+
+        if 'ignore_projects' in conf:
+            ignore_projects = list_from_csv(conf.get('ignore_projects'))
+        else:
+            ignore_projects = self.DEFAULT_IGNORE_PROJECT_NAMES
+
+        if not ignore_projects:
+            return []
+
+        def opt_getter(opt):
+            # TODO(sileht): This method does not support deprecated opt names
+            val = conf.get(opt.name)
+            if val is None:
+                val = conf.get(opt.dest)
+            return val
+
+        auth_type = conf.get('auth_type')
+        plugin = ksa_base.get_plugin_loader(auth_type)
+
+        auth = plugin.load_from_options_getter(opt_getter)
+        session = ksa_session.Session().load_from_options_getter(
+            opt_getter, auth=auth)
+        client = KeystoneClientLoader().load_from_options_getter(
+            opt_getter, session=session)
+
+        projects = []
+        for name_or_id in ignore_projects:
+            projects.extend(self._get_keystone_projects(client, name_or_id))
+        return projects
+
+    @staticmethod
+    def _get_keystone_projects(client, name_or_id):
+        try:
+            return [client.projects.get(name_or_id)]
+        except ksa_exc.NotFound:
+            pass
+        if isinstance(name_or_id, six.binary_type):
+            name_or_id = name_or_id.decode('utf-8', 'strict')
+        projects = client.projects.list(name=name_or_id)
+        if not projects:
+            LOG.warning("fail to find project '%s' in keystone", name_or_id)
+        return [p.id for p in projects]
+
     def __call__(self, env, start_response):
         start_response_args = [None]
         input_proxy = InputProxy(env['wsgi.input'])
diff --git a/ceilometermiddleware/tests/data/list_projects.yaml b/ceilometermiddleware/tests/data/list_projects.yaml
new file mode 100644
index 0000000..be365c4
--- /dev/null
+++ b/ceilometermiddleware/tests/data/list_projects.yaml
@@ -0,0 +1,514 @@
+http_interactions:
+- recorded_at: '2017-05-15T07:49:52'
+  request:
+    body:
+      encoding: utf-8
+      string: |-
+        {
+          "auth": {
+            "tenantName": "dummy",
+            "passwordCredentials": {
+              "username": "dummy",
+              "password": "********"
+            }
+          }
+        }
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      Content-Length:
+      - '107'
+      Content-Type:
+      - application/json
+      User-Agent:
+      - run.py keystoneauth1/2.20.0 python-requests/2.14.2 CPython/2.7.13
+    method: POST
+    uri: https://[::1]:5000/v2.0/tokens
+  response:
+    body:
+      encoding: null
+      string: |-
+        {
+          "access": {
+            "serviceCatalog": [
+              {
+                "type": "compute",
+                "endpoints_links": [],
+                "name": "nova",
+                "endpoints": [
+                  {
+                    "internalURL": "https://[::1]:8774/v2.1",
+                    "adminURL": "https://[::1]:8774/v2.1",
+                    "id": "1e879ab434b54b8abfd275feeb2ef9f3",
+                    "region": "RegionOne",
+                    "publicURL": "https://[::1]:8774/v2.1"
+                  }
+                ]
+              },
+              {
+                "type": "network",
+                "endpoints_links": [],
+                "name": "neutron",
+                "endpoints": [
+                  {
+                    "internalURL": "http://[::1]:9696",
+                    "adminURL": "http://[::1]:9696",
+                    "id": "83fcb786f646437f9a61cef72a9e43d7",
+                    "region": "RegionOne",
+                    "publicURL": "http://[::1]:9696"
+                  }
+                ]
+              },
+              {
+                "type": "volumev2",
+                "endpoints_links": [],
+                "name": "cinderv2",
+                "endpoints": [
+                  {
+                    "internalURL": "https://[::1]:8776/v2/ed980105f9d047e2bee738b3f261f126",
+                    "adminURL": "https://[::1]:8776/v2/ed980105f9d047e2bee738b3f261f126",
+                    "id": "973ef665c2ea4ec3b5c3d48932fad7a4",
+                    "region": "RegionOne",
+                    "publicURL": "https://[::1]:8776/v2/ed980105f9d047e2bee738b3f261f126"
+                  }
+                ]
+              },
+              {
+                "type": "volumev3",
+                "endpoints_links": [],
+                "name": "cinderv3",
+                "endpoints": [
+                  {
+                    "internalURL": "https://[::1]:8776/v3/ed980105f9d047e2bee738b3f261f126",
+                    "adminURL": "https://[::1]:8776/v3/ed980105f9d047e2bee738b3f261f126",
+                    "id": "0e80fe643d4d44729db99d0a5c882d1b",
+                    "region": "RegionOne",
+                    "publicURL": "https://[::1]:8776/v3/ed980105f9d047e2bee738b3f261f126"
+                  }
+                ]
+              },
+              {
+                "type": "image",
+                "endpoints_links": [],
+                "name": "glance",
+                "endpoints": [
+                  {
+                    "internalURL": "http://[::1]:9292",
+                    "adminURL": "http://[::1]:9292",
+                    "id": "7aad24b660a94254adc3546e4de4d668",
+                    "region": "RegionOne",
+                    "publicURL": "http://[::1]:9292"
+                  }
+                ]
+              },
+              {
+                "type": "volume",
+                "endpoints_links": [],
+                "name": "cinder",
+                "endpoints": [
+                  {
+                    "internalURL": "https://[::1]:8776/v1/ed980105f9d047e2bee738b3f261f126",
+                    "adminURL": "https://[::1]:8776/v1/ed980105f9d047e2bee738b3f261f126",
+                    "id": "8191ee00b695483796a9531bca70279b",
+                    "region": "RegionOne",
+                    "publicURL": "https://[::1]:8776/v1/ed980105f9d047e2bee738b3f261f126"
+                  }
+                ]
+              },
+              {
+                "type": "identity",
+                "endpoints_links": [],
+                "name": "keystone",
+                "endpoints": [
+                  {
+                    "internalURL": "https://[::1]:5000",
+                    "adminURL": "https://[::1]:35357",
+                    "id": "24ab268f1a7b47d4af493c4c74cd6130",
+                    "region": "RegionOne",
+                    "publicURL": "https://[::1]:5000"
+                  }
+                ]
+              }
+            ],
+            "user": {
+              "username": "dummy",
+              "roles_links": [],
+              "id": "f18b121edda04346b86610fa23983a0e",
+              "roles": [
+                {
+                  "name": "admin"
+                }
+              ],
+              "name": "dummy"
+            },
+            "token": {
+              "issued_at": "2017-05-15T07:49:52.000000Z",
+              "tenant": {
+                "enabled": true,
+                "id": "ed980105f9d047e2bee738b3f261f126",
+                "name": "dummy",
+                "description": "admin tenant"
+              },
+              "audit_ids": [
+                "VzK7yoNFT0qlUWg5KhDuMQ"
+              ],
+              "expires": "9999-12-31T23:59:59Z",
+              "id": "gAAAAABZGV2gZwV0SlycA_OIohX7kRAmTp84SnzsAYD5Uhey7RTzCf0NvxNRxLk5RsjRSMncSdro7eWgtMrSblZJCPl485IvHANL3E3gsxFJP9TjebqDiF4DtGhQmc4mHPB3kOBNzg3v2FrHB2hK77Cc4M7V1Pm_-nWBHxYxVNopVhrd80Y4-2c"
+            },
+            "metadata": {
+              "is_admin": 0,
+              "roles": [
+                "d3b61a4656d64cbbbdb0f13690e2ffe4"
+              ]
+            }
+          }
+        }
+    headers:
+      Connection:
+      - Keep-Alive
+      Content-Length:
+      - '3183'
+      Content-Type:
+      - application/json
+      Date:
+      - Mon, 15 May 2017 07:49:51 GMT
+      Keep-Alive:
+      - timeout=3, max=100
+      Server:
+      - Apache/2.4.18 (Ubuntu)
+      Strict-Transport-Security:
+      - max-age=15768000
+      Vary:
+      - X-Auth-Token
+      X-Distribution:
+      - Ubuntu
+      x-openstack-request-id:
+      - req-84cb5714-49dc-4bab-93ba-2b66ba566c30
+    status:
+      code: 200
+      message: OK
+    url: https://[::1]:5000/v2.0/tokens
+- recorded_at: '2017-05-15T07:49:53'
+  request:
+    body:
+      encoding: utf-8
+      string: ''
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      User-Agent:
+      - run.py keystoneauth1/2.20.0 python-requests/2.14.2 CPython/2.7.13
+    method: GET
+    uri: https://[::1]:35357/
+  response:
+    body:
+      encoding: null
+      string: |-
+        {
+          "versions": {
+            "values": [
+              {
+                "status": "stable",
+                "updated": "2016-10-06T00:00:00Z",
+                "id": "v3.7",
+                "links": [
+                  {
+                    "rel": "self",
+                    "href": "https://[::1]:35357/v3/"
+                  }
+                ],
+                "media-types": [
+                  {
+                    "type": "application/vnd.openstack.identity-v3+json",
+                    "base": "application/json"
+                  }
+                ]
+              },
+              {
+                "status": "deprecated",
+                "updated": "2016-08-04T00:00:00Z",
+                "id": "v2.0",
+                "links": [
+                  {
+                    "rel": "self",
+                    "href": "https://[::1]:35357/v2.0/"
+                  },
+                  {
+                    "type": "text/html",
+                    "rel": "describedby",
+                    "href": "http://docs.openstack.org/"
+                  }
+                ],
+                "media-types": [
+                  {
+                    "type": "application/vnd.openstack.identity-v2.0+json",
+                    "base": "application/json"
+                  }
+                ]
+              }
+            ]
+          }
+        }
+    headers:
+      Connection:
+      - Keep-Alive
+      Content-Length:
+      - '627'
+      Content-Type:
+      - application/json
+      Date:
+      - Mon, 15 May 2017 07:49:52 GMT
+      Keep-Alive:
+      - timeout=3, max=100
+      Server:
+      - Apache/2.4.18 (Ubuntu)
+      Strict-Transport-Security:
+      - max-age=15768000
+      Vary:
+      - X-Auth-Token
+      X-Distribution:
+      - Ubuntu
+    status:
+      code: 300
+      message: Multiple Choices
+    url: https://[::1]:35357/
+- recorded_at: '2017-05-15T07:49:53'
+  request:
+    body:
+      encoding: utf-8
+      string: ''
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-keystoneclient
+      X-Auth-Token:
+      - gAAAAABZGV2gZwV0SlycA_OIohX7kRAmTp84SnzsAYD5Uhey7RTzCf0NvxNRxLk5RsjRSMncSdro7eWgtMrSblZJCPl485IvHANL3E3gsxFJP9TjebqDiF4DtGhQmc4mHPB3kOBNzg3v2FrHB2hK77Cc4M7V1Pm_-nWBHxYxVNopVhrd80Y4-2c
+    method: GET
+    uri: https://[::1]:35357/v3/projects/services
+  response:
+    body:
+      encoding: null
+      string: |-
+        {
+          "error": {
+            "code": 404,
+            "title": "Not Found",
+            "message": "Could not find project: services"
+          }
+        }
+    headers:
+      Connection:
+      - Keep-Alive
+      Content-Length:
+      - '93'
+      Content-Type:
+      - application/json
+      Date:
+      - Mon, 15 May 2017 07:49:53 GMT
+      Keep-Alive:
+      - timeout=3, max=99
+      Server:
+      - Apache/2.4.18 (Ubuntu)
+      Strict-Transport-Security:
+      - max-age=15768000
+      Vary:
+      - X-Auth-Token
+      X-Distribution:
+      - Ubuntu
+      x-openstack-request-id:
+      - req-6107025c-e09e-437a-90c2-61a559154d32
+    status:
+      code: 404
+      message: Not Found
+    url: https://[::1]:35357/v3/projects/services
+- recorded_at: '2017-05-15T07:49:53'
+  request:
+    body:
+      encoding: utf-8
+      string: ''
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-keystoneclient
+      X-Auth-Token:
+      - gAAAAABZGV2gZwV0SlycA_OIohX7kRAmTp84SnzsAYD5Uhey7RTzCf0NvxNRxLk5RsjRSMncSdro7eWgtMrSblZJCPl485IvHANL3E3gsxFJP9TjebqDiF4DtGhQmc4mHPB3kOBNzg3v2FrHB2hK77Cc4M7V1Pm_-nWBHxYxVNopVhrd80Y4-2c
+    method: GET
+    uri: https://[::1]:35357/v3/projects?name=services
+  response:
+    body:
+      encoding: null
+      string: |-
+        {
+          "projects": [
+            {
+              "enabled": true,
+              "id": "147cc0a9263c4964926f3ee7b6ba3685",
+              "domain_id": "default",
+              "parent_id": "default",
+              "is_domain": false,
+              "name": "services",
+              "links": {
+                "self": "https://[::1]:5000/v3/projects/147cc0a9263c4964926f3ee7b6ba3685"
+              },
+              "description": "Tenant for the openstack services"
+            }
+          ],
+          "links": {
+            "self": "https://[::1]:5000/v3/projects?name=services",
+            "next": null,
+            "previous": null
+          }
+        }
+    headers:
+      Connection:
+      - Keep-Alive
+      Content-Length:
+      - '440'
+      Content-Type:
+      - application/json
+      Date:
+      - Mon, 15 May 2017 07:49:53 GMT
+      Keep-Alive:
+      - timeout=3, max=98
+      Server:
+      - Apache/2.4.18 (Ubuntu)
+      Strict-Transport-Security:
+      - max-age=15768000
+      Vary:
+      - X-Auth-Token
+      X-Distribution:
+      - Ubuntu
+      x-openstack-request-id:
+      - req-1915b2be-f116-4831-a7c3-5ba0a32d416f
+    status:
+      code: 200
+      message: OK
+    url: https://[::1]:35357/v3/projects?name=services
+- recorded_at: '2017-05-15T07:49:53'
+  request:
+    body:
+      encoding: utf-8
+      string: ''
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-keystoneclient
+      X-Auth-Token:
+      - gAAAAABZGV2gZwV0SlycA_OIohX7kRAmTp84SnzsAYD5Uhey7RTzCf0NvxNRxLk5RsjRSMncSdro7eWgtMrSblZJCPl485IvHANL3E3gsxFJP9TjebqDiF4DtGhQmc4mHPB3kOBNzg3v2FrHB2hK77Cc4M7V1Pm_-nWBHxYxVNopVhrd80Y4-2c
+    method: GET
+    uri: https://[::1]:35357/v3/projects/gnocchi
+  response:
+    body:
+      encoding: null
+      string: |-
+        {
+          "error": {
+            "code": 404,
+            "title": "Not Found",
+            "message": "Could not find project: gnocchi"
+          }
+        }
+    headers:
+      Connection:
+      - Keep-Alive
+      Content-Length:
+      - '92'
+      Content-Type:
+      - application/json
+      Date:
+      - Mon, 15 May 2017 07:49:53 GMT
+      Keep-Alive:
+      - timeout=3, max=97
+      Server:
+      - Apache/2.4.18 (Ubuntu)
+      Strict-Transport-Security:
+      - max-age=15768000
+      Vary:
+      - X-Auth-Token
+      X-Distribution:
+      - Ubuntu
+      x-openstack-request-id:
+      - req-b23e72d3-742e-4e10-b9a7-d1161f1eeab4
+    status:
+      code: 404
+      message: Not Found
+    url: https://[::1]:35357/v3/projects/gnocchi
+- recorded_at: '2017-05-15T07:49:53'
+  request:
+    body:
+      encoding: utf-8
+      string: ''
+    headers:
+      Accept:
+      - application/json
+      Accept-Encoding:
+      - gzip, deflate
+      Connection:
+      - keep-alive
+      User-Agent:
+      - python-keystoneclient
+      X-Auth-Token:
+      - gAAAAABZGV2gZwV0SlycA_OIohX7kRAmTp84SnzsAYD5Uhey7RTzCf0NvxNRxLk5RsjRSMncSdro7eWgtMrSblZJCPl485IvHANL3E3gsxFJP9TjebqDiF4DtGhQmc4mHPB3kOBNzg3v2FrHB2hK77Cc4M7V1Pm_-nWBHxYxVNopVhrd80Y4-2c
+    method: GET
+    uri: https://[::1]:35357/v3/projects?name=gnocchi
+  response:
+    body:
+      encoding: null
+      string: |-
+        {
+          "projects": [],
+          "links": {
+            "self": "https://[::1]:5000/v3/projects?name=gnocchi",
+            "next": null,
+            "previous": null
+          }
+        }
+    headers:
+      Connection:
+      - Keep-Alive
+      Content-Length:
+      - '134'
+      Content-Type:
+      - application/json
+      Date:
+      - Mon, 15 May 2017 07:49:53 GMT
+      Keep-Alive:
+      - timeout=3, max=96
+      Server:
+      - Apache/2.4.18 (Ubuntu)
+      Strict-Transport-Security:
+      - max-age=15768000
+      Vary:
+      - X-Auth-Token
+      X-Distribution:
+      - Ubuntu
+      x-openstack-request-id:
+      - req-fdeed726-18a4-4e73-bf8d-d24a5b56246e
+    status:
+      code: 200
+      message: OK
+    url: https://[::1]:35357/v3/projects?name=gnocchi
+recorded_with: betamax/0.8.0
diff --git a/ceilometermiddleware/tests/test_swift.py b/ceilometermiddleware/tests/test_swift.py
index 59daed6..9b788b4 100644
--- a/ceilometermiddleware/tests/test_swift.py
+++ b/ceilometermiddleware/tests/test_swift.py
@@ -12,13 +12,15 @@
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations
 # under the License.
+import threading
+
 import mock
 from oslo_config import cfg
 import six
 
 from ceilometermiddleware import swift
 from ceilometermiddleware.tests import base as tests_base
-import threading
+from keystoneauth1.fixture import keystoneauth_betamax as betamax
 
 
 class FakeApp(object):
@@ -429,3 +431,31 @@ class TestSwift(tests_base.TestCase):
         with mock.patch('oslo_messaging.Notifier.info') as notify:
             list(app(req.environ, self.start_response))
             self.assertFalse(notify.called)
+
+    def test_ignore_projects_without_keystone(self):
+        app = swift.Swift(FakeApp(), {
+            'ignore_projects': 'cf0356aaac7c42bba5a744339a6169fa,'
+                               '18157dd635bb413c9e27686fee93c583',
+        })
+        self.assertEqual(["cf0356aaac7c42bba5a744339a6169fa",
+                          "18157dd635bb413c9e27686fee93c583"],
+                         app.ignore_projects)
+
+    @mock.patch.object(swift.LOG, 'warning')
+    def test_ignore_projects_with_keystone(self, warning):
+        self.useFixture(betamax.BetamaxFixture(
+            cassette_name='list_projects',
+            cassette_library_dir='ceilometermiddleware/tests/data',
+        ))
+        app = swift.Swift(FakeApp(), {
+            'auth_type': 'v2password',
+            'auth_url': 'https://[::1]:5000/v2.0',
+            'username': 'admin',
+            'tenant_name': 'admin',
+            'password': 'secret',
+            'ignore_projects': 'services,gnocchi',
+        })
+        self.assertEqual(["147cc0a9263c4964926f3ee7b6ba3685"],
+                         app.ignore_projects)
+        warning.assert_called_once_with(
+            "fail to find project '%s' in keystone", "gnocchi")
diff --git a/requirements.txt b/requirements.txt
index 3b3829c..e716dc4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,5 @@ oslo.utils
 pbr>=1.6 # Apache-2.0
 pycadf!=2.0.0,>=1.1.0 # Apache-2.0
 six>=1.9.0 # MIT
+keystoneauth1>=2.18.0  # Apache-2.0
+python-keystoneclient>=3.8.0  # Apache-2.0
diff --git a/test-requirements.txt b/test-requirements.txt
index 13d54b7..89ce1d1 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,4 +10,4 @@ oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 mock>=1.2 # BSD
 reno>=0.1.1 # Apache-2.0
-
+betamax>=0.7.0 # Apache-2.0