diff options
-rw-r--r-- | ChangeLog | 1 | ||||
-rw-r--r-- | cloudinit/sources/DataSourceDigitalOcean.py | 104 | ||||
-rw-r--r-- | doc/sources/digitalocean/README.rst | 21 | ||||
-rw-r--r-- | tests/unittests/test_datasource/test_digitalocean.py | 126 | ||||
-rw-r--r-- | tests/unittests/test_datasource/test_openstack.py | 1 |
5 files changed, 252 insertions, 1 deletions
@@ -1,5 +1,6 @@ 0.7.7: - open 0.7.7 + - Digital Ocean: add datasource for Digital Ocean. [Neal Shrader] 0.7.6: - open 0.7.6 - Enable vendordata on CloudSigma datasource (LP: #1303986) diff --git a/cloudinit/sources/DataSourceDigitalOcean.py b/cloudinit/sources/DataSourceDigitalOcean.py new file mode 100644 index 00000000..069bdb41 --- /dev/null +++ b/cloudinit/sources/DataSourceDigitalOcean.py @@ -0,0 +1,104 @@ +# vi: ts=4 expandtab +# +# Author: Neal Shrader <neal@digitalocean.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +from cloudinit import log as logging +from cloudinit import util +from cloudinit import sources +from cloudinit import ec2_utils +from types import StringType +import functools + + +LOG = logging.getLogger(__name__) + +BUILTIN_DS_CONFIG = { + 'metadata_url': 'http://169.254.169.254/metadata/v1/', + 'mirrors_url': 'http://mirrors.digitalocean.com/' +} +MD_RETRIES = 0 +MD_TIMEOUT = 1 + +class DataSourceDigitalOcean(sources.DataSource): + def __init__(self, sys_cfg, distro, paths): + sources.DataSource.__init__(self, sys_cfg, distro, paths) + self.metadata = dict() + self.ds_cfg = util.mergemanydict([ + util.get_cfg_by_path(sys_cfg, ["datasource", "DigitalOcean"], {}), + BUILTIN_DS_CONFIG]) + self.metadata_address = self.ds_cfg['metadata_url'] + + if self.ds_cfg.get('retries'): + self.retries = self.ds_cfg['retries'] + else: + self.retries = MD_RETRIES + + if self.ds_cfg.get('timeout'): + self.timeout = self.ds_cfg['timeout'] + else: + self.timeout = MD_TIMEOUT + + def get_data(self): + caller = functools.partial(util.read_file_or_url, timeout=self.timeout, + retries=self.retries) + md = ec2_utils.MetadataMaterializer(str(caller(self.metadata_address)), + base_url=self.metadata_address, + caller=caller) + + self.metadata = md.materialize() + + if self.metadata.get('id'): + return True + else: + return False + + def get_userdata_raw(self): + return "\n".join(self.metadata['user-data']) + + def get_vendordata_raw(self): + return "\n".join(self.metadata['vendor-data']) + + def get_public_ssh_keys(self): + if type(self.metadata['public-keys']) is StringType: + return [self.metadata['public-keys']] + else: + return self.metadata['public-keys'] + + @property + def availability_zone(self): + return self.metadata['region'] + + def get_instance_id(self): + return self.metadata['id'] + + def get_hostname(self, fqdn=False): + return self.metadata['hostname'] + + def get_package_mirror_info(self): + return self.ds_cfg['mirrors_url'] + + @property + def launch_index(self): + return None + +# Used to match classes to dependencies +datasources = [ + (DataSourceDigitalOcean, (sources.DEP_FILESYSTEM, sources.DEP_NETWORK)), + ] + + +# Return a list of data sources that match this set of dependencies +def get_datasource_list(depends): + return sources.list_from_depends(depends, datasources) diff --git a/doc/sources/digitalocean/README.rst b/doc/sources/digitalocean/README.rst new file mode 100644 index 00000000..1bb89fe1 --- /dev/null +++ b/doc/sources/digitalocean/README.rst @@ -0,0 +1,21 @@ + The `DigitalOcean`_ datasource consumes the content served from DigitalOcean's `metadata service`_. This +metadata service serves information about the running droplet via HTTP over the link local address +169.254.169.254. The metadata API endpoints are fully described at +`https://developers.digitalocean.com/metadata/ <https://developers.digitalocean.com/metadata/>`_. + +Configuration +~~~~~~~~~~~~~ + +DigitalOcean's datasource can be configured as follows: + + datasource: + DigitalOcean: + retries: 3 + timeout: 2 + +- *retries*: Determines the number of times to attempt to connect to the metadata service +- *timeout*: Determines the timeout in seconds to wait for a response from the metadata service + +.. _DigitalOcean: http://digitalocean.com/ +.. _metadata service: https://developers.digitalocean.com/metadata/ +.. _Full documentation: https://developers.digitalocean.com/metadata/ diff --git a/tests/unittests/test_datasource/test_digitalocean.py b/tests/unittests/test_datasource/test_digitalocean.py new file mode 100644 index 00000000..04bee340 --- /dev/null +++ b/tests/unittests/test_datasource/test_digitalocean.py @@ -0,0 +1,126 @@ +# +# Copyright (C) 2014 Neal Shrader +# +# Author: Neal Shrader <neal@digitalocean.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 3, as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +import httpretty +import re + +from types import ListType +from urlparse import urlparse + +from cloudinit import settings +from cloudinit import helpers +from cloudinit.sources import DataSourceDigitalOcean + +from .. import helpers as test_helpers + +# Abbreviated for the test +DO_INDEX = """id + hostname + user-data + vendor-data + public-keys + region""" + +DO_MULTIPLE_KEYS = """ssh-rsa AAAAB3NzaC1yc2EAAAA... neal@digitalocean.com + ssh-rsa AAAAB3NzaC1yc2EAAAA... neal2@digitalocean.com""" +DO_SINGLE_KEY = "ssh-rsa AAAAB3NzaC1yc2EAAAA... neal@digitalocean.com" + +DO_META = { + '': DO_INDEX, + 'user-data': '#!/bin/bash\necho "user-data"', + 'vendor-data': '#!/bin/bash\necho "vendor-data"', + 'public-keys': DO_SINGLE_KEY, + 'region': 'nyc3', + 'id': '2000000', + 'hostname': 'cloudinit-test', +} + +MD_URL_RE = re.compile(r'http://169.254.169.254/metadata/v1/.*') + +def _request_callback(method, uri, headers): + url_path = urlparse(uri).path + if url_path.startswith('/metadata/v1/'): + path = url_path.split('/metadata/v1/')[1:][0] + else: + path = None + if path in DO_META: + return (200, headers, DO_META.get(path)) + else: + return (404, headers, '') + + +class TestDataSourceDigitalOcean(test_helpers.HttprettyTestCase): + + def setUp(self): + self.ds = DataSourceDigitalOcean.DataSourceDigitalOcean( + settings.CFG_BUILTIN, None, + helpers.Paths({})) + super(TestDataSourceDigitalOcean, self).setUp() + + @httpretty.activate + def test_connection(self): + httpretty.register_uri( + httpretty.GET, MD_URL_RE, + body=_request_callback) + + success = self.ds.get_data() + self.assertTrue(success) + + @httpretty.activate + def test_metadata(self): + httpretty.register_uri( + httpretty.GET, MD_URL_RE, + body=_request_callback) + self.ds.get_data() + + self.assertEqual(DO_META.get('user-data'), + self.ds.get_userdata_raw()) + + self.assertEqual(DO_META.get('vendor-data'), + self.ds.get_vendordata_raw()) + + self.assertEqual(DO_META.get('region'), + self.ds.availability_zone) + + self.assertEqual(DO_META.get('id'), + self.ds.get_instance_id()) + + self.assertEqual(DO_META.get('hostname'), + self.ds.get_hostname()) + + self.assertEqual('http://mirrors.digitalocean.com/', + self.ds.get_package_mirror_info()) + + # Single key + self.assertEqual([DO_META.get('public-keys')], + self.ds.get_public_ssh_keys()) + + self.assertIs(type(self.ds.get_public_ssh_keys()), ListType) + + @httpretty.activate + def test_multiple_ssh_keys(self): + DO_META['public_keys'] = DO_MULTIPLE_KEYS + httpretty.register_uri( + httpretty.GET, MD_URL_RE, + body=_request_callback) + self.ds.get_data() + + # Multiple keys + self.assertEqual(DO_META.get('public-keys').splitlines(), + self.ds.get_public_ssh_keys()) + + self.assertIs(type(self.ds.get_public_ssh_keys()), ListType) diff --git a/tests/unittests/test_datasource/test_openstack.py b/tests/unittests/test_datasource/test_openstack.py index 8becbdd2..49894e51 100644 --- a/tests/unittests/test_datasource/test_openstack.py +++ b/tests/unittests/test_datasource/test_openstack.py @@ -19,7 +19,6 @@ import copy import json import re -import unittest from StringIO import StringIO |