214 lines
8.2 KiB
Python
214 lines
8.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2012 Yahoo! Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import io
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from devstack import cfg
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from devstack import component as comp
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from devstack import log as logging
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from devstack import shell as sh
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from devstack.components import db
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from devstack.components import keystone
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from devstack.image import uploader
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LOG = logging.getLogger("devstack.components.glance")
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# Config files/sections
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API_CONF = "glance-api.conf"
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REG_CONF = "glance-registry.conf"
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API_PASTE_CONF = 'glance-api-paste.ini'
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REG_PASTE_CONF = 'glance-registry-paste.ini'
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SCRUB_CONF = 'glance-scrubber.conf'
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SCRUB_PASTE_CONF = 'glance-scrubber-paste.ini'
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LOGGING_CONF = "logging.conf"
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LOGGING_SOURCE_FN = 'logging.cnf.sample'
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POLICY_JSON = 'policy.json'
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CONFIGS = [API_CONF, REG_CONF, API_PASTE_CONF,
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REG_PASTE_CONF, POLICY_JSON, LOGGING_CONF,
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SCRUB_CONF, SCRUB_PASTE_CONF]
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READ_CONFIGS = [API_CONF, REG_CONF, API_PASTE_CONF,
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REG_PASTE_CONF, SCRUB_CONF, SCRUB_PASTE_CONF]
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# Reg, api, scrub are here as possible subsystems
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GAPI = "api"
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GREG = "reg"
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GSCR = 'scrub'
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# This db will be dropped and created
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DB_NAME = "glance"
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# What applications to start
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APP_OPTIONS = {
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'glance-api': ['--config-file', sh.joinpths('%CONFIG_DIR%', API_CONF)],
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'glance-registry': ['--config-file', sh.joinpths('%CONFIG_DIR%', REG_CONF)],
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'glance-scrubber': ['--config-file', sh.joinpths('%CONFIG_DIR%', REG_CONF)],
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}
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# How the subcompoent small name translates to an actual app
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SUB_TO_APP = {
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GAPI: 'glance-api',
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GREG: 'glance-registry',
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GSCR: 'glance-scrubber',
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}
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# Subdirs of the downloaded (we are overriding the original)
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BIN_DIR = 'bin'
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class GlanceMixin(object):
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def known_options(self):
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return set(['no-load-images'])
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def known_subsystems(self):
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return SUB_TO_APP.keys()
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def _get_config_files(self):
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return list(CONFIGS)
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def _get_download_locations(self):
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places = list()
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places.append({
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'uri': ("git", "glance_repo"),
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'branch': ("git", "glance_branch"),
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})
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return places
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class GlanceUninstaller(GlanceMixin, comp.PythonUninstallComponent):
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def __init__(self, *args, **kargs):
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comp.PythonUninstallComponent.__init__(self, *args, **kargs)
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class GlanceInstaller(GlanceMixin, comp.PythonInstallComponent):
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def __init__(self, *args, **kargs):
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comp.PythonInstallComponent.__init__(self, *args, **kargs)
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def post_install(self):
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comp.PythonInstallComponent.post_install(self)
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self._setup_db()
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def _setup_db(self):
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LOG.info("Fixing up database named %r", DB_NAME)
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db.drop_db(self.cfg, self.pw_gen, self.distro, DB_NAME)
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db.create_db(self.cfg, self.pw_gen, self.distro, DB_NAME)
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def _get_source_config(self, config_fn):
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if config_fn == POLICY_JSON:
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# FIXME, maybe we shouldn't be sucking this from the checkout??
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fn = sh.joinpths(self.app_dir, 'etc', POLICY_JSON)
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contents = sh.load_file(fn)
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return (fn, contents)
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elif config_fn == LOGGING_CONF:
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# FIXME, maybe we shouldn't be sucking this from the checkout??
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fn = sh.joinpths(self.app_dir, 'etc', LOGGING_SOURCE_FN)
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contents = sh.load_file(fn)
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return (fn, contents)
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return comp.PythonInstallComponent._get_source_config(self, config_fn)
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def _config_adjust(self, contents, name):
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# Even bother opening??
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if name not in READ_CONFIGS:
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return contents
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# Use config parser and
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# then extract known configs that
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# will need locations/directories/files made (or touched)...
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with io.BytesIO(contents) as stream:
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config = cfg.IgnoreMissingConfigParser(cs=False)
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config.readfp(stream)
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if config.getboolean('default', 'image_cache_enabled'):
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cache_dir = config.get('default', "image_cache_datadir")
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if cache_dir:
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LOG.info("Ensuring image cache data directory %r exists (and is empty)" % (cache_dir))
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# Destroy then recreate the image cache directory
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sh.deldir(cache_dir)
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self.tracewriter.dirs_made(*sh.mkdirslist(cache_dir))
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if config.get('default', 'default_store') == 'file':
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file_dir = config.get('default', 'filesystem_store_datadir')
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if file_dir:
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LOG.info("Ensuring file system store directory %r exists and is empty." % (file_dir))
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# Delete existing images
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# and recreate the image directory
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sh.deldir(file_dir)
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self.tracewriter.dirs_made(*sh.mkdirslist(file_dir))
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log_filename = config.get('default', 'log_file')
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if log_filename:
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LOG.info("Ensuring log file %r exists and is empty." % (log_filename))
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log_dir = sh.dirname(log_filename)
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if log_dir:
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LOG.info("Ensuring log directory %r exists." % (log_dir))
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self.tracewriter.dirs_made(*sh.mkdirslist(log_dir))
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# Destroy then recreate it (the log file)
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sh.unlink(log_filename)
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self.tracewriter.file_touched(sh.touch_file(log_filename))
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if config.getboolean('default', 'delayed_delete'):
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data_dir = config.get('default', 'scrubber_datadir')
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if data_dir:
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LOG.info("Ensuring scrubber data dir %r exists and is empty." % (data_dir))
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# Destroy then recreate the scrubber data directory
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sh.deldir(data_dir)
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self.tracewriter.dirs_made(*sh.mkdirslist(data_dir))
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# Nothing modified so just return the original
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return contents
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def _get_image_dir(self):
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# This might be changed often so make it a function
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return sh.joinpths(self.component_dir, 'images')
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def _get_param_map(self, config_fn):
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# This dict will be used to fill in the configuration
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# params with actual values
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mp = comp.PythonInstallComponent._get_param_map(self, config_fn)
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mp['IMG_DIR'] = self._get_image_dir()
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mp['SYSLOG'] = self.cfg.getboolean("default", "syslog")
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mp['SQL_CONN'] = db.fetch_dbdsn(self.cfg, self.pw_gen, DB_NAME)
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mp['SERVICE_HOST'] = self.cfg.get('host', 'ip')
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mp['HOST_IP'] = self.cfg.get('host', 'ip')
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mp.update(keystone.get_shared_params(self.cfg, self.pw_gen, 'glance'))
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return mp
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class GlanceRuntime(GlanceMixin, comp.PythonRuntime):
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def __init__(self, *args, **kargs):
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comp.PythonRuntime.__init__(self, *args, **kargs)
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self.bin_dir = sh.joinpths(self.app_dir, BIN_DIR)
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self.wait_time = max(self.cfg.getint('default', 'service_wait_seconds'), 1)
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def _get_apps_to_start(self):
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apps = list()
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for subsys in self.desired_subsystems:
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apps.append({
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'name': SUB_TO_APP[subsys],
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'path': sh.joinpths(self.bin_dir, SUB_TO_APP[subsys]),
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})
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return apps
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def _get_app_options(self, app):
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return APP_OPTIONS.get(app)
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def post_start(self):
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comp.PythonRuntime.post_start(self)
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if 'no-load-images' in self.options:
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pass
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else:
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# Install any images that need activating...
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# TODO: make this less cheesy - need to wait till glance goes online
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LOG.info("Waiting %s seconds so that glance can start up before image install." % (self.wait_time))
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sh.sleep(self.wait_time)
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uploader.Service(self.cfg, self.pw_gen).install()
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