openstack
/
heat
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Initial commit (basics copied from glance) 

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
changes/40/40/1
Angus Salkeld 9 years ago
commit
3b9c41fb6c
30 changed files with 5288 additions and 0 deletions
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  1. +6
    -0
      .gitignore
  2. +176
    -0
      LICENSE
  3. +377
    -0
      bin/heat
  4. +54
    -0
      bin/heat-api
  5. +25
    -0
      etc/heat-api
  6. +80
    -0
      etc/heat-api-paste.ini
  7. +20
    -0
      heat/__init__.py
  8. +16
    -0
      heat/api/__init__.py
  9. +16
    -0
      heat/api/middleware/__init__.py
  10. +64
    -0
      heat/api/middleware/context.py
  11. +123
    -0
      heat/api/middleware/version_negotiation.py
  12. +21
    -0
      heat/api/v1/__init__.py
  13. +54
    -0
      heat/api/v1/router.py
  14. +157
    -0
      heat/api/v1/stacks.py
  15. +68
    -0
      heat/api/versions.py
  16. +133
    -0
      heat/client.py
  17. +16
    -0
      heat/common/__init__.py
  18. +267
    -0
      heat/common/auth.py
  19. +1135
    -0
      heat/common/cfg.py
  20. +593
    -0
      heat/common/client.py
  21. +184
    -0
      heat/common/config.py
  22. +124
    -0
      heat/common/context.py
  23. +70
    -0
      heat/common/crypt.py
  24. +193
    -0
      heat/common/exception.py
  25. +182
    -0
      heat/common/policy.py
  26. +372
    -0
      heat/common/utils.py
  27. +649
    -0
      heat/common/wsgi.py
  28. +46
    -0
      heat/version.py
  29. +27
    -0
      pylintrc
  30. +40
    -0
      templates/getting_started.template

+ 6
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.gitignore View File

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*.pyc
*.swp
*.log
build
dist
heat/vcsversion.py

+ 176
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LICENSE View File

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bin/heat View File

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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack, LLC
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
This is the administration program for heat. It is simply a command-line
interface for adding, modifying, and retrieving information about the stacks
belonging to a user.
"""
import functools
import gettext
import optparse
import os
import sys
import time
import json
from urlparse import urlparse
# If ../heat/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'heat', '__init__.py')):
sys.path.insert(0, possible_topdir)
gettext.install('heat', unicode=1)
from heat import client as heat_client
from heat.common import exception
from heat import version
SUCCESS = 0
FAILURE = 1
DEFAULT_PORT = 8000
def catch_error(action):
"""Decorator to provide sensible default error handling for actions."""
def wrap(func):
@functools.wraps(func)
def wrapper(*arguments, **kwargs):
try:
ret = func(*arguments, **kwargs)
return SUCCESS if ret is None else ret
except exception.NotAuthorized:
print "Not authorized to make this request. Check "\
"your credentials (OS_AUTH_USER, OS_AUTH_KEY, ...)."
return FAILURE
except exception.ClientConfigurationError:
raise
except Exception, e:
options = arguments[0]
if options.debug:
raise
print "Failed to %s. Got error:" % action
pieces = unicode(e).split('\n')
for piece in pieces:
print piece
return FAILURE
return wrapper
return wrap
@catch_error('validate')
def template_validate(options, arguments):
'''
'''
pass
@catch_error('gettemplate')
def get_template(options, arguments):
'''
'''
pass
@catch_error('create')
def stack_create(options, arguments):
'''
'''
parameters = {}
try:
parameters['StackName'] = arguments.pop(0)
except IndexError:
print "Please specify the stack name you wish to create "
print "as the first argument"
return FAILURE
if options.parameters:
for p in options.parameters.split(';'):
(n, v) = p.split('=')
parameters[n] = v
if options.template_file:
parameters['TemplateBody'] = open(options.template_file).read()
elif options.template_url:
parameters['TemplateUrl'] = options.template_url
else:
print 'Please specify a template file or url'
return FAILURE
c = get_client(options)
result = c.create_stack(**parameters)
print json.dumps(result, indent=2)
@catch_error('update')
def stack_update(options, arguments):
'''
'''
parameters = {}
try:
parameters['StackName'] = arguments.pop(0)
except IndexError:
print "Please specify the stack name you wish to update "
print "as the first argument"
return FAILURE
c = get_client(options)
result = c.update_stack(parameters)
print json.dumps(result, indent=2)
@catch_error('delete')
def stack_delete(options, arguments):
'''
'''
parameters = {}
try:
parameters['StackName'] = arguments.pop(0)
except IndexError:
print "Please specify the stack name you wish to delete "
print "as the first argument"
return FAILURE
c = get_client(options)
result = c.delete_stack(parameters)
print json.dumps(result, indent=2)
@catch_error('describe')
def stack_describe(options, arguments):
'''
'''
parameters = {}
try:
parameters['StackName'] = arguments.pop(0)
except IndexError:
print "Describing all stacks"
c = get_client(options)
result = c.describe_stacks(parameters)
print json.dumps(result, indent=2)
@catch_error('list')
def stack_list(options, arguments):
'''
'''
c = get_client(options)
result = c.list_stacks()
print json.dumps(result, indent=2)
def get_client(options):
"""
Returns a new client object to a heat server
specified by the --host and --port options
supplied to the CLI
"""
return heat_client.get_client(host=options.host,
port=options.port,
username=options.username,
password=options.password,
auth_url=options.auth_url,
auth_strategy=options.auth_strategy,
auth_token=options.auth_token,
region=options.region,
insecure=options.insecure)
def create_options(parser):
"""
Sets up the CLI and config-file options that may be
parsed and program commands.
:param parser: The option parser
"""
parser.add_option('-v', '--verbose', default=False, action="store_true",
help="Print more verbose output")
parser.add_option('-d', '--debug', default=False, action="store_true",
help="Print more verbose output")
parser.add_option('-H', '--host', metavar="ADDRESS", default="0.0.0.0",
help="Address of heat API host. "
"Default: %default")
parser.add_option('-p', '--port', dest="port", metavar="PORT",
type=int, default=DEFAULT_PORT,
help="Port the heat API host listens on. "
"Default: %default")
parser.add_option('-U', '--url', metavar="URL", default=None,
help="URL of heat service. This option can be used "
"to specify the hostname, port and protocol "
"(http/https) of the heat server, for example "
"-U https://localhost:" + str(DEFAULT_PORT) +
"/v1 Default: No<F3>ne")
parser.add_option('-k', '--insecure', dest="insecure",
default=False, action="store_true",
help="Explicitly allow heat to perform \"insecure\" "
"SSL (https) requests. The server's certificate will "
"not be verified against any certificate authorities. "
"This option should be used with caution.")
parser.add_option('-A', '--auth_token', dest="auth_token",
metavar="TOKEN", default=None,
help="Authentication token to use to identify the "
"client to the heat server")
parser.add_option('-I', '--username', dest="username",
metavar="USER", default=None,
help="User name used to acquire an authentication token")
parser.add_option('-K', '--password', dest="password",
metavar="PASSWORD", default=None,
help="Password used to acquire an authentication token")
parser.add_option('-R', '--region', dest="region",
metavar="REGION", default=None,
help="Region name. When using keystone authentication "
"version 2.0 or later this identifies the region "
"name to use when selecting the service endpoint. A "
"region name must be provided if more than one "
"region endpoint is available")
parser.add_option('-N', '--auth_url', dest="auth_url",
metavar="AUTH_URL", default=None,
help="Authentication URL")
parser.add_option('-S', '--auth_strategy', dest="auth_strategy",
metavar="STRATEGY", default=None,
help="Authentication strategy (keystone or noauth)")
parser.add_option('-u', '--template-url', metavar="template_url", default=None,
help="URL of template. Default: None")
parser.add_option('-t', '--template-file', metavar="template_file", default=None,
help="Path to the template. Default: None")
parser.add_option('-P', '--parameters', metavar="parameters", default=None,
help="Parameter values used to create the stack.")
def parse_options(parser, cli_args):
"""
Returns the parsed CLI options, command to run and its arguments, merged
with any same-named options found in a configuration file
:param parser: The option parser
"""
if not cli_args:
cli_args.append('-h') # Show options in usage output...
(options, args) = parser.parse_args(cli_args)
if options.url is not None:
u = urlparse(options.url)
options.port = u.port
options.host = u.hostname
options.use_ssl = (options.url is not None and u.scheme == 'https')
# HACK(sirp): Make the parser available to the print_help method
# print_help is a command, so it only accepts (options, args); we could
# one-off have it take (parser, options, args), however, for now, I think
# this little hack will suffice
options.__parser = parser
if not args:
parser.print_usage()
sys.exit(0)
command_name = args.pop(0)
command = lookup_command(parser, command_name)
return (options, command, args)
def print_help(options, args):
"""
Print help specific to a command
"""
if len(args) != 1:
sys.exit("Please specify a command")
parser = options.__parser
command_name = args.pop()
command = lookup_command(parser, command_name)
print command.__doc__ % {'prog': os.path.basename(sys.argv[0])}
def lookup_command(parser, command_name):
base_commands = {'help': print_help}
image_commands = {
'create': stack_create,
'update': stack_update,
'delete': stack_delete,
'list': stack_list,
'validate': template_validate,
'gettemplate': get_template,
'describe': stack_describe}
commands = {}
for command_set in (base_commands, image_commands):
commands.update(command_set)
try:
command = commands[command_name]
except KeyError:
parser.print_usage()
sys.exit("Unknown command: %s" % command_name)
return command
def main():
'''
'''
usage = """
%prog <command> [options] [args]
Commands:
help <command> Output help for one of the commands below
create Create the stack
delete Delete the stack
describe Describe the stack
update Update the stack
list List the user's stacks
gettemplate Get the template
validate Validate a template
"""
oparser = optparse.OptionParser(version='%%prog %s'
% version.version_string(),
usage=usage.strip())
create_options(oparser)
(opts, cmd, args) = parse_options(oparser, sys.argv[1:])
try:
start_time = time.time()
result = cmd(opts, args)
end_time = time.time()
if opts.verbose:
print "Completed in %-0.4f sec." % (end_time - start_time)
sys.exit(result)
except (RuntimeError,
NotImplementedError,
exception.ClientConfigurationError), ex:
oparser.print_usage()
print >> sys.stderr, "ERROR: ", ex
sys.exit(1)
if __name__ == '__main__':
main()

+ 54
- 0
bin/heat-api View File

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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Heat API Server
"""
import gettext
import os
import sys
# If ../heat/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'heat', '__init__.py')):
sys.path.insert(0, possible_topdir)
gettext.install('heat', unicode=1)
from heat.common import config
from heat.common import wsgi
if __name__ == '__main__':
try:
conf = config.HeatConfigOpts()
conf()
app = config.load_paste_app(conf)
server = wsgi.Server()
server.start(app, conf, default_port=9292)
server.wait()
except RuntimeError, e:
sys.exit("ERROR: %s" % e)

+ 25
- 0
etc/heat-api View File

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[DEFAULT]
# Show more verbose log output (sets INFO log level output)
verbose = True
# Show debugging output in logs (sets DEBUG log level output)
debug = True
# Address to bind the server to
bind_host = 0.0.0.0
# Port the bind the server to
bind_port = 8000
# Log to this file. Make sure the user running heat-api has
# permissions to write to this file!
log_file = /var/log/heat/api.log
# ================= Syslog Options ============================
# Send logs to syslog (/dev/log) instead of to file specified
# by `log_file`
use_syslog = False
# Facility to use. If unset defaults to LOG_USER.
# syslog_log_facility = LOG_LOCAL0

+ 80
- 0
etc/heat-api-paste.ini View File

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# Default minimal pipeline
[pipeline:heat-api]
pipeline = versionnegotiation context apiv1app
# Use the following pipeline for keystone auth
# i.e. in heat-api.conf:
# [paste_deploy]
# flavor = keystone
#
[pipeline:heat-api-keystone]
pipeline = versionnegotiation authtoken auth-context apiv1app
# Use the following pipeline to enable transparent caching of image files
# i.e. in heat-api.conf:
# [paste_deploy]
# flavor = caching
#
[pipeline:heat-api-caching]
pipeline = versionnegotiation context cache apiv1app
# Use the following pipeline for keystone auth with caching
# i.e. in heat-api.conf:
# [paste_deploy]
# flavor = keystone+caching
#
[pipeline:heat-api-keystone+caching]
pipeline = versionnegotiation authtoken auth-context cache apiv1app
# Use the following pipeline to enable the Image Cache Management API
# i.e. in heat-api.conf:
# [paste_deploy]
# flavor = cachemanagement
#
[pipeline:heat-api-cachemanagement]
pipeline = versionnegotiation context cache cachemanage apiv1app
# Use the following pipeline for keystone auth with cache management
# i.e. in heat-api.conf:
# [paste_deploy]
# flavor = keystone+cachemanagement
#
[pipeline:heat-api-keystone+cachemanagement]
pipeline = versionnegotiation authtoken auth-context cache cachemanage apiv1app
[app:apiv1app]
paste.app_factory = heat.common.wsgi:app_factory
heat.app_factory = heat.api.v1.router:API
[filter:versionnegotiation]
paste.filter_factory = heat.common.wsgi:filter_factory
heat.filter_factory = heat.api.middleware.version_negotiation:VersionNegotiationFilter
[filter:cache]
paste.filter_factory = heat.common.wsgi:filter_factory
heat.filter_factory = heat.api.middleware.cache:CacheFilter
[filter:cachemanage]
paste.filter_factory = heat.common.wsgi:filter_factory
heat.filter_factory = heat.api.middleware.cache_manage:CacheManageFilter
[filter:context]
paste.filter_factory = heat.common.wsgi:filter_factory
heat.filter_factory = heat.common.context:ContextMiddleware
[filter:authtoken]
paste.filter_factory = keystone.middleware.auth_token:filter_factory
service_protocol = http
service_host = 127.0.0.1
service_port = 5000
auth_host = 127.0.0.1
auth_port = 35357
auth_protocol = http
auth_uri = http://127.0.0.1:5000/
admin_tenant_name = %SERVICE_TENANT_NAME%
admin_user = %SERVICE_USER%
admin_password = %SERVICE_PASSWORD%
[filter:auth-context]
paste.filter_factory = heat.common.wsgi:filter_factory
heat.filter_factory = keystone.middleware.heat_auth_token:KeystoneContextMiddleware

+ 20
- 0
heat/__init__.py View File

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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# 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 gettext
gettext.install('heat', unicode=1)

+ 16
- 0
heat/api/__init__.py View File

@ -0,0 +1,16 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

+ 16
- 0
heat/api/middleware/__init__.py View File

@ -0,0 +1,16 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

+ 64
- 0
heat/api/middleware/context.py View File

@ -0,0 +1,64 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Middleware that attaches a context to the WSGI request
"""
from heat.common import utils
from heat.common import wsgi
from heat.common import context
class ContextMiddleware(wsgi.Middleware):
def __init__(self, app, options):
self.options = options
super(ContextMiddleware, self).__init__(app)
def make_context(self, *args, **kwargs):
"""
Create a context with the given arguments.
"""
# Determine the context class to use
ctxcls = context.RequestContext
if 'context_class' in self.options:
ctxcls = utils.import_class(self.options['context_class'])
return ctxcls(*args, **kwargs)
def process_request(self, req):
"""
Extract any authentication information in the request and
construct an appropriate context from it.
"""
# Use the default empty context, with admin turned on for
# backwards compatibility
req.context = self.make_context(is_admin=True)
def filter_factory(global_conf, **local_conf):
"""
Factory method for paste.deploy
"""
conf = global_conf.copy()
conf.update(local_conf)
def filter(app):
return ContextMiddleware(app, conf)
return filter

+ 123
- 0
heat/api/middleware/version_negotiation.py View File

@ -0,0 +1,123 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
A filter middleware that inspects the requested URI for a version string
and/or Accept headers and attempts to negotiate an API controller to
return
"""
import logging
import re
import routes
from heat.api import v1
from heat.api import versions
from heat.common import wsgi
logger = logging.getLogger('heat.api.middleware.version_negotiation')
class VersionNegotiationFilter(wsgi.Middleware):
def __init__(self, app, conf, **local_conf):
self.versions_app = versions.Controller(conf)
self.version_uri_regex = re.compile(r"^v(\d+)\.?(\d+)?")
self.conf = conf
super(VersionNegotiationFilter, self).__init__(app)
def process_request(self, req):
"""
If there is a version identifier in the URI, simply
return the correct API controller, otherwise, if we
find an Accept: header, process it
"""
# See if a version identifier is in the URI passed to
# us already. If so, simply return the right version
# API controller
msg = _("Processing request: %(method)s %(path)s Accept: "
"%(accept)s") % ({'method': req.method,
'path': req.path, 'accept': req.accept})
logger.debug(msg)
# If the request is for /versions, just return the versions container
if req.path_info_peek() == "versions":
return self.versions_app
match = self._match_version_string(req.path_info_peek(), req)
if match:
if (req.environ['api.major_version'] == 1 and
req.environ['api.minor_version'] == 0):
logger.debug(_("Matched versioned URI. Version: %d.%d"),
req.environ['api.major_version'],
req.environ['api.minor_version'])
# Strip the version from the path
req.path_info_pop()
return None
else:
logger.debug(_("Unknown version in versioned URI: %d.%d. "
"Returning version choices."),
req.environ['api.major_version'],
req.environ['api.minor_version'])
return self.versions_app
accept = str(req.accept)
if accept.startswith('application/vnd.openstack.images-'):
token_loc = len('application/vnd.openstack.images-')
accept_version = accept[token_loc:]
match = self._match_version_string(accept_version, req)
if match:
if (req.environ['api.major_version'] == 1 and
req.environ['api.minor_version'] == 0):
logger.debug(_("Matched versioned media type. "
"Version: %d.%d"),
req.environ['api.major_version'],
req.environ['api.minor_version'])
return None
else:
logger.debug(_("Unknown version in accept header: %d.%d..."
"returning version choices."),
req.environ['api.major_version'],
req.environ['api.minor_version'])
return self.versions_app
else:
if req.accept not in ('*/*', ''):
logger.debug(_("Unknown accept header: %s..."
"returning version choices."), req.accept)
return self.versions_app
return None
def _match_version_string(self, subject, req):
"""
Given a subject string, tries to match a major and/or
minor version number. If found, sets the api.major_version
and api.minor_version environ variables.
Returns True if there was a match, false otherwise.
:param subject: The string to check
:param req: Webob.Request object
"""
match = self.version_uri_regex.match(subject)
if match:
major_version, minor_version = match.groups(0)
major_version = int(major_version)
minor_version = int(minor_version)
req.environ['api.major_version'] = major_version
req.environ['api.minor_version'] = minor_version
return match is not None

+ 21
- 0
heat/api/v1/__init__.py View File

@ -0,0 +1,21 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
SUPPORTED_PARAMS = ('StackName', 'TemplateBody', 'NotificationARNs', 'Parameters',
'Version', 'SignatureVersion', 'Timestamp', 'AWSAccessKeyId',
'Signature')

+ 54
- 0
heat/api/v1/router.py View File

@ -0,0 +1,54 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# 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 logging
import routes
from heat.api.v1 import stacks
from heat.common import wsgi
logger = logging.getLogger(__name__)
class API(wsgi.Router):
"""WSGI router for Heat v1 API requests."""
#TODO
#DeleteStack
#GetTemplate
#UpdateStack
#ValidateTemplate
def __init__(self, conf, **local_conf):
self.conf = conf
mapper = routes.Mapper()
stacks_resource = stacks.create_resource(conf)
mapper.resource("stack", "stacks", controller=stacks_resource,
collection={'detail': 'GET'})
mapper.connect("/CreateStack", controller=stacks_resource,
action="create", conditions=dict(method=["POST"]))
mapper.connect("/", controller=stacks_resource, action="index")
mapper.connect("/ListStacks", controller=stacks_resource,
action="list", conditions=dict(method=["GET"]))
mapper.connect("/DescribeStacks", controller=stacks_resource,
action="show", conditions=dict(method=["GET"]))
super(API, self).__init__(mapper)

+ 157
- 0
heat/api/v1/stacks.py View File

@ -0,0 +1,157 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
/stack endpoint for heat v1 API
"""
import httplib
import json
import logging
import sys
import webob
from webob.exc import (HTTPNotFound,
HTTPConflict,
HTTPBadRequest)
from heat.common import exception
from heat.common import wsgi
logger = logging.getLogger('heat.api.v1.stacks')
class StackController(object):
"""
WSGI controller for stacks resource in heat v1 API
"""
def __init__(self, options):
self.options = options
def list(self, req):
"""
Returns the following information for all stacks:
"""
return {'ListStacksResponse': [
{'ListStacksResult': [
{'StackSummaries': [
{'member': [
{'StackId': 'arn:aws:cloudformation:us-east-1:1234567:stack/TestCreate1/aaaaa',
'StackStatus': 'CREATE_IN_PROGRESS',
'StackName': 'vpc1',
'CreationTime': '2011-05-23T15:47:44Z',
'TemplateDescription': 'Creates one EC2 instance and a load balancer.',
}]
},
{'member': [
{'StackId': 'arn:aws:cloudformation:us-east-1:1234567:stack/TestDelete2/bbbbb',
'StackStatus': 'DELETE_COMPLETE',
'StackName': 'WP1',
'CreationTime': '2011-03-05T19:57:58Z',
'TemplateDescription': 'A simple basic Cloudformation Template.',
}]
}
]}]}]}
def describe(self, req):
return {'stack': [
{'id': 'id',
'name': '<stack NAME',
'disk_format': '<DISK_FORMAT>',
'container_format': '<CONTAINER_FORMAT>' } ] }
def create(self, req):
for p in req.params:
print 'create %s=%s' % (p, req.params[p])
return {'CreateStackResult': [{'StackId': '007'}]}
def update(self, req, id, image_meta, image_data):
"""
Updates an existing image with the registry.
:param request: The WSGI/Webob Request object
:param id: The opaque image identifier
:retval Returns the updated image information as a mapping
"""
return {'image_meta': 'bla'}
def delete(self, req, id):
"""
Deletes the image and all its chunks from heat
:param req: The WSGI/Webob Request object
:param id: The opaque image identifier
:raises HttpBadRequest if image registry is invalid
:raises HttpNotFound if image or any chunk is not available
:raises HttpNotAuthorized if image or any chunk is not
deleteable by the requesting user
"""
class StackDeserializer(wsgi.JSONRequestDeserializer):
"""Handles deserialization of specific controller method requests."""
def _deserialize(self, request):
result = {}
return result
def create(self, request):
return self._deserialize(request)
def update(self, request):
return self._deserialize(request)
class StackSerializer(wsgi.JSONResponseSerializer):
"""Handles serialization of specific controller method responses."""
def _inject_location_header(self, response, image_meta):
response.headers['Location'] = 'location'
def _inject_checksum_header(self, response, image_meta):
response.headers['ETag'] = 'checksum'
def update(self, response, result):
return
def create(self, response, result):
""" Create """
response.status = 201
response.headers['Content-Type'] = 'application/json'
response.body = self.to_json(dict(CreateStackResult=result))
self._inject_location_header(response, result)
self._inject_checksum_header(response, result)
return response
def handle_stack(self, req, id):
return {'got-stack-id': id}
def create_resource(options):
"""Stacks resource factory method"""
deserializer = StackDeserializer()
serializer = StackSerializer()
return wsgi.Resource(StackController(options), deserializer, serializer)

+ 68
- 0
heat/api/versions.py View File

@ -0,0 +1,68 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Controller that returns information on the heat API versions
"""
import httplib
import json
import webob.dec
from heat.common import wsgi
class Controller(object):
"""
A controller that produces information on the heat API versions.
"""
def __init__(self, conf):
self.conf = conf
@webob.dec.wsgify
def __call__(self, req):
"""Respond to a request for all OpenStack API versions."""
version_objs = [
{
"id": "v1.1",
"status": "CURRENT",
"links": [
{
"rel": "self",
"href": self.get_href(req)}]},
{
"id": "v1.0",
"status": "SUPPORTED",
"links": [
{
"rel": "self",
"href": self.get_href(req)}]}]
body = json.dumps(dict(versions=version_objs))
response = webob.Response(request=req,
status=httplib.MULTIPLE_CHOICES,
content_type='application/json')
response.body = body
return response
def get_href(self, req):
return "%s/v1/" % req.host_url

+ 133
- 0
heat/client.py View File

@ -0,0 +1,133 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 OpenStack, LLC
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Client classes for callers of a heat system
"""
import errno
import httplib
import json
import logging
import os
import socket
import sys
import heat.api.v1
from heat.common import client as base_client
from heat.common import exception
from heat.common import utils
logger = logging.getLogger(__name__)
SUPPORTED_PARAMS = heat.api.v1.SUPPORTED_PARAMS
class V1Client(base_client.BaseClient):
"""Main client class for accessing heat resources"""
DEFAULT_PORT = 8000
DEFAULT_DOC_ROOT = "/v1"
def _insert_common_parameters(self, params):
params['Version'] = '2010-05-15'
params['SignatureVersion'] = '2'
params['SignatureMethod'] = 'HmacSHA256'
def list_stacks(self, **kwargs):
params = self._extract_params({}, SUPPORTED_PARAMS)
self._insert_common_parameters(params)
res = self.do_request("GET", "/ListStacks", params=params)
data = json.loads(res.read())
return data
def show_stack(self, **kwargs):
params = self._extract_params(kwargs, SUPPORTED_PARAMS)
self._insert_common_parameters(params)
res = self.do_request("GET", "/DescribeStacks", params=params)
data = json.loads(res.read())
return data
def create_stack(self, **kwargs):
params = self._extract_params(kwargs, SUPPORTED_PARAMS)
self._insert_common_parameters(params)
res = self.do_request("POST", "/CreateStack", params=params)
data = json.loads(res.read())
return data
def update_stack(self, **kwargs):
return
def delete_stack(self, **kwargs):
self._insert_common_parameters(params)
params = self._extract_params(kwargs, SUPPORTED_PARAMS)
self.do_request("DELETE", "/DeleteStack", params)
return True
Client = V1Client
def get_client(host, port=None, username=None,
password=None, tenant=None,
auth_url=None, auth_strategy=None,
auth_token=None, region=None,
is_silent_upload=False, insecure=False):
"""
Returns a new client heat client object based on common kwargs.
If an option isn't specified falls back to common environment variable
defaults.
"""
if auth_url or os.getenv('OS_AUTH_URL'):
force_strategy = 'keystone'
else:
force_strategy = None
creds = dict(username=username or
os.getenv('OS_AUTH_USER', os.getenv('OS_USERNAME')),
password=password or
os.getenv('OS_AUTH_KEY', os.getenv('OS_PASSWORD')),
tenant=tenant or
os.getenv('OS_AUTH_TENANT',
os.getenv('OS_TENANT_NAME')),
auth_url=auth_url or os.getenv('OS_AUTH_URL'),
strategy=force_strategy or auth_strategy or
os.getenv('OS_AUTH_STRATEGY', 'noauth'),
region=region or os.getenv('OS_REGION_NAME'),
)
if creds['strategy'] == 'keystone' and not creds['auth_url']:
msg = ("--auth_url option or OS_AUTH_URL environment variable "
"required when keystone authentication strategy is enabled\n")
raise exception.ClientConfigurationError(msg)
use_ssl = (creds['auth_url'] is not None and
creds['auth_url'].find('https') != -1)
client = Client
return client(host=host,
port=port,
use_ssl=use_ssl,
auth_tok=auth_token or
os.getenv('OS_TOKEN'),
creds=creds,
insecure=insecure)

+ 16
- 0
heat/common/__init__.py View File

@ -0,0 +1,16 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

+ 267
- 0
heat/common/auth.py View File

@ -0,0 +1,267 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
This auth module is intended to allow Openstack client-tools to select from a
variety of authentication strategies, including NoAuth (the default), and
Keystone (an identity management system).
> auth_plugin = AuthPlugin(creds)
> auth_plugin.authenticate()
> auth_plugin.auth_token
abcdefg
> auth_plugin.management_url
http://service_endpoint/
"""
import httplib2
import json
import urlparse
from heat.common import exception
class BaseStrategy(object):
def __init__(self):
self.auth_token = None
# TODO(sirp): Should expose selecting public/internal/admin URL.
self.management_url = None
def authenticate(self):
raise NotImplementedError
@property
def is_authenticated(self):
raise NotImplementedError
@property
def strategy(self):
raise NotImplementedError
class NoAuthStrategy(BaseStrategy):
def authenticate(self):
pass
@property
def is_authenticated(self):
return True
@property
def strategy(self):
return 'noauth'
class KeystoneStrategy(BaseStrategy):
MAX_REDIRECTS = 10
def __init__(self, creds):
self.creds = creds
super(KeystoneStrategy, self).__init__()
def check_auth_params(self):
# Ensure that supplied credential parameters are as required
for required in ('username', 'password', 'auth_url',
'strategy'):
if required not in self.creds:
raise exception.MissingCredentialError(required=required)
if self.creds['strategy'] != 'keystone':
raise exception.BadAuthStrategy(expected='keystone',
received=self.creds['strategy'])
# For v2.0 also check tenant is present
if self.creds['auth_url'].rstrip('/').endswith('v2.0'):
if 'tenant' not in self.creds:
raise exception.MissingCredentialError(required='tenant')
def authenticate(self):
"""Authenticate with the Keystone service.
There are a few scenarios to consider here:
1. Which version of Keystone are we using? v1 which uses headers to
pass the credentials, or v2 which uses a JSON encoded request body?
2. Keystone may respond back with a redirection using a 305 status
code.
3. We may attempt a v1 auth when v2 is what's called for. In this
case, we rewrite the url to contain /v2.0/ and retry using the v2
protocol.
"""
def _authenticate(auth_url):
# If OS_AUTH_URL is missing a trailing slash add one
if not auth_url.endswith('/'):
auth_url += '/'
token_url = urlparse.urljoin(auth_url, "tokens")
# 1. Check Keystone version
is_v2 = auth_url.rstrip('/').endswith('v2.0')
if is_v2:
self._v2_auth(token_url)
else:
self._v1_auth(token_url)
self.check_auth_params()
auth_url = self.creds['auth_url']
for _ in range(self.MAX_REDIRECTS):
try:
_authenticate(auth_url)
except exception.AuthorizationRedirect as e:
# 2. Keystone may redirect us
auth_url = e.url
except exception.AuthorizationFailure:
# 3. In some configurations nova makes redirection to
# v2.0 keystone endpoint. Also, new location does not
# contain real endpoint, only hostname and port.
if 'v2.0' not in auth_url:
auth_url = urlparse.urljoin(auth_url, 'v2.0/')
else:
# If we sucessfully auth'd, then memorize the correct auth_url
# for future use.
self.creds['auth_url'] = auth_url
break
else:
# Guard against a redirection loop
raise exception.MaxRedirectsExceeded(redirects=self.MAX_REDIRECTS)
def _v1_auth(self, token_url):
creds = self.creds
headers = {}
headers['X-Auth-User'] = creds['username']
headers['X-Auth-Key'] = creds['password']
tenant = creds.get('tenant')
if tenant:
headers['X-Auth-Tenant'] = tenant
resp, resp_body = self._do_request(token_url, 'GET', headers=headers)
def _management_url(self, resp):
for url_header in ('x-image-management-url',
'x-server-management-url',
'x-heat'):
try:
return resp[url_header]
except KeyError as e:
not_found = e
raise not_found
if resp.status in (200, 204):
try:
self.management_url = _management_url(self, resp)
self.auth_token = resp['x-auth-token']
except KeyError:
raise exception.AuthorizationFailure()
elif resp.status == 305:
raise exception.AuthorizationRedirect(resp['location'])
elif resp.status == 400:
raise exception.AuthBadRequest(url=token_url)
elif resp.status == 401:
raise exception.NotAuthorized()
elif resp.status == 404:
raise exception.AuthUrlNotFound(url=token_url)
else:
raise Exception(_('Unexpected response: %s' % resp.status))
def _v2_auth(self, token_url):
def get_endpoint(service_catalog):
"""
Select an endpoint from the service catalog
We search the full service catalog for services
matching both type and region. If the client
supplied no region then any 'image' endpoint
is considered a match. There must be one -- and
only one -- successful match in the catalog,
otherwise we will raise an exception.
"""
# FIXME(sirp): for now just use the public url.
endpoint = None
region = self.creds.get('region')
for service in service_catalog:
if service['type'] == 'image':
for ep in service['endpoints']:
if region is None or region == ep['region']:
if endpoint is not None:
# This is a second match, abort
raise exception.RegionAmbiguity(region=region)
endpoint = ep
if endpoint is None:
raise exception.NoServiceEndpoint()
return endpoint['publicURL']
creds = self.creds
creds = {
"auth": {
"tenantName": creds['tenant'],
"passwordCredentials": {
"username": creds['username'],
"password": creds['password']
}
}
}
headers = {}
headers['Content-Type'] = 'application/json'
req_body = json.dumps(creds)
resp, resp_body = self._do_request(
token_url, 'POST', headers=headers, body=req_body)
if resp.status == 200:
resp_auth = json.loads(resp_body)['access']
self.management_url = get_endpoint(resp_auth['serviceCatalog'])
self.auth_token = resp_auth['token']['id']
elif resp.status == 305:
raise exception.RedirectException(resp['location'])
elif resp.status == 400:
raise exception.AuthBadRequest(url=token_url)
elif resp.status == 401:
raise exception.NotAuthorized()
elif resp.status == 404:
raise exception.AuthUrlNotFound(url=token_url)
else:
raise Exception(_('Unexpected response: %s') % resp.status)
@property
def is_authenticated(self):
return self.auth_token is not None
@property
def strategy(self):
return 'keystone'
@staticmethod
def _do_request(url, method, headers=None, body=None):
headers = headers or {}
conn = httplib2.Http()
conn.force_exception_to_status_code = True
headers['User-Agent'] = 'heat-client'
resp, resp_body = conn.request(url, method, headers=headers, body=body)
return resp, resp_body
def get_plugin_from_strategy(strategy, creds=None):
if strategy == 'noauth':
return NoAuthStrategy()
elif strategy == 'keystone':
return KeystoneStrategy(creds)
else:
raise Exception(_("Unknown auth strategy '%s'") % strategy)

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heat/common/cfg.py
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heat/common/client.py View File

@ -0,0 +1,593 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010-2011 OpenStack, LLC
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# HTTPSClientAuthConnection code comes courtesy of ActiveState website:
# http://code.activestate.com/recipes/
# 577548-https-httplib-client-connection-with-certificate-v/
import collections
import errno
import functools
import httplib
import logging
import os
import urllib
import urlparse
try:
from eventlet.green import socket, ssl
except ImportError:
import socket
import ssl
try:
import sendfile
SENDFILE_SUPPORTED = True
except ImportError:
SENDFILE_SUPPORTED = False
from heat.common import auth
from heat.common import exception, utils
# common chunk size for get and put
CHUNKSIZE = 65536
def handle_unauthorized(func):
"""
Wrap a function to re-authenticate and retry.
"""
@functools.wraps(func)
def wrapped(self, *args, **kwargs):
try:
return func(self, *args, **kwargs)
except exception.NotAuthorized:
self._authenticate(force_reauth=True)
return func(self, *args, **kwargs)
return wrapped
def handle_redirects(func):
"""
Wrap the _do_request function to handle HTTP redirects.
"""
MAX_REDIRECTS = 5
@functools.wraps(func)
def wrapped(self, method, url, body, headers):
for _ in xrange(MAX_REDIRECTS):
try:
return func(self, method, url, body, headers)
except exception.RedirectException as redirect:
if redirect.url is None:
raise exception.InvalidRedirect()
url = redirect.url
raise exception.MaxRedirectsExceeded(redirects=MAX_REDIRECTS)
return wrapped