FM / cloudinit

/usr/lib/python2.6/site-packages/cloudinit/

/usr/lib/python2.6/site-packages/cloudinit

Name	Size	Mode	Actions
config/	-	0755	rm
distros/	-	0755	rm
filters/	-	0755	rm
handlers/	-	0755	rm
mergers/	-	0755	rm
sources/	-	0755	rm
cloud.py	3497	0644	edit dl rm
cloud.pyc	3723	0644	edit dl rm
cloud.pyo	3723	0644	edit dl rm
cs_utils.py	3321	0644	edit dl rm
cs_utils.pyc	4266	0644	edit dl rm
cs_utils.pyo	4266	0644	edit dl rm
ec2_utils.py	6577	0644	edit dl rm
ec2_utils.pyc	5755	0644	edit dl rm
ec2_utils.pyo	5755	0644	edit dl rm
helpers.py	15045	0644	edit dl rm
helpers.pyc	16600	0644	edit dl rm
helpers.pyo	16600	0644	edit dl rm
importer.py	2317	0644	edit dl rm
importer.pyc	1502	0644	edit dl rm
importer.pyo	1502	0644	edit dl rm
log.py	4620	0644	edit dl rm
log.pyc	3700	0644	edit dl rm
log.pyo	3700	0644	edit dl rm
netinfo.py	6854	0644	edit dl rm
netinfo.pyc	5347	0644	edit dl rm
netinfo.pyo	5347	0644	edit dl rm
patcher.py	1820	0644	edit dl rm
patcher.pyc	1531	0644	edit dl rm
patcher.pyo	1531	0644	edit dl rm
safeyaml.py	1060	0644	edit dl rm
safeyaml.pyc	891	0644	edit dl rm
safeyaml.pyo	891	0644	edit dl rm
settings.py	2111	0644	edit dl rm
settings.pyc	1035	0644	edit dl rm
settings.pyo	1035	0644	edit dl rm
signal_handler.py	2378	0644	edit dl rm
signal_handler.pyc	2326	0644	edit dl rm
signal_handler.pyo	2326	0644	edit dl rm
ssh_util.py	10636	0644	edit dl rm
ssh_util.pyc	10072	0644	edit dl rm
ssh_util.pyo	10072	0644	edit dl rm
stages.py	27944	0644	edit dl rm
stages.pyc	21399	0644	edit dl rm
stages.pyo	21399	0644	edit dl rm
templater.py	1362	0644	edit dl rm
templater.pyc	1003	0644	edit dl rm
templater.pyo	1003	0644	edit dl rm
type_utils.py	1224	0644	edit dl rm
type_utils.pyc	524	0644	edit dl rm
type_utils.pyo	524	0644	edit dl rm
url_helper.py	12852	0644	edit dl rm
url_helper.pyc	11295	0644	edit dl rm
url_helper.pyo	11295	0644	edit dl rm
user_data.py	13143	0644	edit dl rm
user_data.pyc	9569	0644	edit dl rm
user_data.pyo	9569	0644	edit dl rm
util.py	62259	0644	edit dl rm
util.pyc	57445	0644	edit dl rm
util.pyo	57445	0644	edit dl rm
version.py	854	0644	edit dl rm
version.pyc	561	0644	edit dl rm
version.pyo	561	0644	edit dl rm
__init__.py	925	0644	edit dl rm
__init__.pyc	141	0644	edit dl rm
__init__.pyo	141	0644	edit dl rm

Edit: /usr/lib/python2.6/site-packages/cloudinit/ec2_utils.py (6577B)

# vi: ts=4 expandtab
#
#    Copyright (C) 2012 Yahoo! Inc.
#
#    Author: Joshua Harlow <harlowja@yahoo-inc.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 functools
import httplib
import json

from cloudinit import log as logging
from cloudinit import url_helper
from cloudinit import util

LOG = logging.getLogger(__name__)
SKIP_USERDATA_CODES = frozenset([httplib.NOT_FOUND])

def maybe_json_object(text):
    if not text:
        return False
    text = text.strip()
    if text.startswith("{") and text.endswith("}"):
        return True
    return False

# See: http://bit.ly/TyoUQs
#
class MetadataMaterializer(object):
    def __init__(self, blob, base_url, caller):
        self._blob = blob
        self._md = None
        self._base_url = base_url
        self._caller = caller

def _parse(self, blob):
        leaves = {}
        children = []
        if not blob:
            return (leaves, children)

def has_children(item):
            if item.endswith("/"):
                return True
            else:
                return False

def get_name(item):
            if item.endswith("/"):
                return item.rstrip("/")
            return item

for field in blob.splitlines():
            field = field.strip()
            field_name = get_name(field)
            if not field or not field_name:
                continue
            if has_children(field):
                if field_name not in children:
                    children.append(field_name)
            else:
                contents = field.split("=", 1)
                resource = field_name
                if len(contents) > 1:
                    # What a PITA...
                    (ident, sub_contents) = contents
                    ident = util.safe_int(ident)
                    if ident is not None:
                        resource = "%s/openssh-key" % (ident)
                        field_name = sub_contents
                leaves[field_name] = resource
        return (leaves, children)

def materialize(self):
        if self._md is not None:
            return self._md
        self._md = self._materialize(self._blob, self._base_url)
        return self._md

def _decode_leaf_blob(self, field, blob):
        if not blob:
            return blob
        if maybe_json_object(blob):
            try:
                # Assume it's json, unless it fails parsing...
                return json.loads(blob)
            except (ValueError, TypeError) as e:
                LOG.warn("Field %s looked like a json object, but it was"
                         " not: %s", field, e)
        if blob.find("\n") != -1:
            return blob.splitlines()
        return blob

def _materialize(self, blob, base_url):
        (leaves, children) = self._parse(blob)
        child_contents = {}
        for c in children:
            child_url = url_helper.combine_url(base_url, c)
            if not child_url.endswith("/"):
                child_url += "/"
            child_blob = str(self._caller(child_url))
            child_contents[c] = self._materialize(child_blob, child_url)
        leaf_contents = {}
        for (field, resource) in leaves.items():
            leaf_url = url_helper.combine_url(base_url, resource)
            leaf_blob = str(self._caller(leaf_url))
            leaf_contents[field] = self._decode_leaf_blob(field, leaf_blob)
        joined = {}
        joined.update(child_contents)
        for field in leaf_contents.keys():
            if field in joined:
                LOG.warn("Duplicate key found in results from %s", base_url)
            else:
                joined[field] = leaf_contents[field]
        return joined

def _skip_retry_on_codes(status_codes, _request_args, cause):
    """Returns if a request should retry based on a given set of codes that
    case retrying to be stopped/skipped.
    """
    if cause.code in status_codes:
        return False
    return True

def get_instance_userdata(api_version='latest',
                          metadata_address='http://169.254.169.254',
                          ssl_details=None, timeout=5, retries=5):
    ud_url = url_helper.combine_url(metadata_address, api_version)
    ud_url = url_helper.combine_url(ud_url, 'user-data')
    user_data = ''
    try:
        # It is ok for userdata to not exist (thats why we are stopping if
        # NOT_FOUND occurs) and just in that case returning an empty string.
        exception_cb = functools.partial(_skip_retry_on_codes,
                                         SKIP_USERDATA_CODES)
        response = util.read_file_or_url(ud_url,
                                         ssl_details=ssl_details,
                                         timeout=timeout,
                                         retries=retries,
                                         exception_cb=exception_cb)
        user_data = str(response)
    except url_helper.UrlError as e:
        if e.code not in SKIP_USERDATA_CODES:
            util.logexc(LOG, "Failed fetching userdata from url %s", ud_url)
    except Exception:
        util.logexc(LOG, "Failed fetching userdata from url %s", ud_url)
    return user_data

def get_instance_metadata(api_version='latest',
                          metadata_address='http://169.254.169.254',
                          ssl_details=None, timeout=5, retries=5):
    md_url = url_helper.combine_url(metadata_address, api_version)
    md_url = url_helper.combine_url(md_url, 'meta-data')
    caller = functools.partial(util.read_file_or_url,
                               ssl_details=ssl_details, timeout=timeout,
                               retries=retries)

try:
        response = caller(md_url)
        materializer = MetadataMaterializer(str(response), md_url, caller)
        md = materializer.materialize()
        if not isinstance(md, (dict)):
            md = {}
        return md
    except Exception:
        util.logexc(LOG, "Failed fetching metadata from url %s", md_url)
        return {}

cmd: