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|
#!/usr/bin/env python
#
# jose.lausuch@ericsson.com
# valentin.boucher@orange.com
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
# pylint: disable=missing-docstring
from __future__ import print_function
import logging
import os
import subprocess
import sys
import yaml
from shade import _utils
import six
LOGGER = logging.getLogger(__name__)
def execute_command_raise(cmd, info=False, error_msg="",
verbose=True, output_file=None):
ret = execute_command(cmd, info, error_msg, verbose, output_file)
if ret != 0:
raise Exception(error_msg)
def execute_command(cmd, info=False, error_msg="",
verbose=True, output_file=None):
if not error_msg:
error_msg = ("The command '%s' failed." % cmd)
msg_exec = ("Executing command: '%s'" % cmd)
if verbose:
if info:
LOGGER.info(msg_exec)
else:
LOGGER.debug(msg_exec)
popen = subprocess.Popen(
cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
if output_file:
ofd = open(output_file, "w")
for line in iter(popen.stdout.readline, b''):
if output_file:
ofd.write(line.decode("utf-8"))
else:
line = line.decode("utf-8").replace('\n', '')
print(line)
sys.stdout.flush()
if output_file:
ofd.close()
popen.stdout.close()
returncode = popen.wait()
if returncode != 0:
if verbose:
LOGGER.error(error_msg)
return returncode
def get_parameter_from_yaml(parameter, yfile):
"""
Returns the value of a given parameter in file.yaml
parameter must be given in string format with dots
Example: general.openstack.image_name
"""
with open(yfile) as yfd:
file_yaml = yaml.safe_load(yfd)
value = file_yaml
for element in parameter.split("."):
value = value.get(element)
if value is None:
raise ValueError("The parameter %s is not defined in"
" %s" % (parameter, yfile))
return value
def get_nova_version(cloud):
""" Get Nova API microversion
Returns:
- Nova API microversion
- None on operation error
"""
# pylint: disable=protected-access
try:
request = cloud._compute_client.request("/", "GET")
LOGGER.debug('cloud._compute_client.request: %s', request)
version = request["version"]["version"]
major, minor = version.split('.')
LOGGER.debug('nova version: %s', (int(major), int(minor)))
return (int(major), int(minor))
except Exception: # pylint: disable=broad-except
LOGGER.exception("Cannot detect Nova version")
return None
def get_openstack_version(cloud):
""" Detect OpenStack version via Nova API microversion
It follows `MicroversionHistory
<https://docs.openstack.org/nova/latest/reference/api-microversion-history.html>`_.
Returns:
- OpenStack release
- Unknown on operation error
"""
# pylint: disable=too-many-branches
version = get_nova_version(cloud)
try:
assert version
if version > (2, 79):
osversion = "Master"
elif version > (2, 72):
osversion = "Train"
elif version > (2, 65):
osversion = "Stein"
elif version > (2, 60):
osversion = "Rocky"
elif version > (2, 53):
osversion = "Queens"
elif version > (2, 42):
osversion = "Pike"
elif version > (2, 38):
osversion = "Ocata"
elif version > (2, 25):
osversion = "Newton"
elif version > (2, 12):
osversion = "Mitaka"
elif version > (2, 3):
osversion = "Liberty"
elif version >= (2, 1):
osversion = "Kilo"
else:
osversion = "Unknown"
LOGGER.info('Detect OpenStack version: %s', osversion)
return osversion
except AssertionError:
LOGGER.exception("Cannot detect OpenStack version")
return "Unknown"
def list_services(cloud):
# pylint: disable=protected-access
"""Search Keystone services via $OS_INTERFACE.
It mainly conforms with `Shade
<https://docs.openstack.org/shade/latest>`_ but allows testing vs
public endpoints. It's worth mentioning that it doesn't support keystone
v2.
:returns: a list of ``munch.Munch`` containing the services description
:raises: ``OpenStackCloudException`` if something goes wrong during the
openstack API call.
"""
url, key = '/services', 'services'
data = cloud._identity_client.get(
url, endpoint_filter={
'interface': os.environ.get('OS_INTERFACE', 'public')},
error_message="Failed to list services")
services = cloud._get_and_munchify(key, data)
return _utils.normalize_keystone_services(services)
def search_services(cloud, name_or_id=None, filters=None):
# pylint: disable=protected-access
"""Search Keystone services ia $OS_INTERFACE.
It mainly conforms with `Shade
<https://docs.openstack.org/shade/latest>`_ but allows testing vs
public endpoints. It's worth mentioning that it doesn't support keystone
v2.
:param name_or_id: Name or id of the desired service.
:param filters: a dict containing additional filters to use. e.g.
{'type': 'network'}.
:returns: a list of ``munch.Munch`` containing the services description
:raises: ``OpenStackCloudException`` if something goes wrong during the
openstack API call.
"""
services = list_services(cloud)
return _utils._filter_list(services, name_or_id, filters)
def convert_dict_to_ini(value):
"Convert dict to oslo.conf input"
assert isinstance(value, dict)
return ",".join("{}:{}".format(
key, val) for (key, val) in six.iteritems(value))
def convert_list_to_ini(value):
"Convert list to oslo.conf input"
assert isinstance(value, list)
return ",".join("{}".format(val) for val in value)
def convert_ini_to_dict(value):
"Convert oslo.conf input to dict"
assert isinstance(value, str)
try:
return {k: v for k, v in (x.rsplit(':', 1) for x in value.split(','))}
except ValueError:
return {}
def convert_ini_to_list(value):
"Convert list to oslo.conf input"
assert isinstance(value, str)
if not value:
return []
return [x for x in value.split(',')]
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