def _set_config_values(self):
"""
Reads providerapi, namespace and accesstoken from answers.conf and
corresponding values from providerconfig (if set).
Use one that is set, if both are set and have conflicting values raise
exception.
Raises:
ProviderFailedException: values in providerconfig and answers.conf
are in conflict
"""
# First things first, if we are running inside of an openshift pod via
# `oc new-app` then get the config from the environment (files/env vars)
# NOTE: pick up provider_tls_verify from answers if exists
if Utils.running_on_openshift():
self.providerapi = Utils.get_openshift_api_endpoint_from_env()
self.namespace = os.environ['POD_NAMESPACE']
self.access_token = os.environ['TOKEN_ENV_VAR']
self.provider_ca = OPENSHIFT_POD_CA_FILE
self.provider_tls_verify = \
self.config.get(PROVIDER_TLS_VERIFY_KEY, True)
return # No need to process other information
# initialize result to default values
result = {PROVIDER_API_KEY: self.providerapi,
ACCESS_TOKEN_KEY: self.access_token,
NAMESPACE_KEY: self.namespace,
PROVIDER_TLS_VERIFY_KEY: self.provider_tls_verify,
PROVIDER_CA_KEY: self.provider_ca}
# create keys in dicts and initialize values to None
answers = {}
providerconfig = {}
for k in result.keys():
answers[k] = None
providerconfig[k] = None
# get values from answers.conf
for k in result.keys():
answers[k] = self.config.get(k)
# get values from providerconfig
if self.config_file:
providerconfig = self._parse_kubeconf(self.config_file)
# decide between values from answers.conf and providerconfig
# if only one is set use that, report if they are in conflict
for k in result.keys():
if answers[k] is not None and providerconfig[k] is None:
result[k] = answers[k]
if answers[k] is None and providerconfig[k] is not None:
result[k] = providerconfig[k]
if answers[k] is not None and providerconfig[k] is not None:
if answers[k] == providerconfig[k]:
result[k] = answers[k]
else:
msg = "There are conflicting values in %s (%s) and %s (%s)"\
% (self.config_file, providerconfig[k], ANSWERS_FILE,
answers[k])
logger.error(msg)
raise ProviderFailedException(msg)
logger.debug("config values: %s" % result)
# this items are required, they have to be not None
for k in [PROVIDER_API_KEY, ACCESS_TOKEN_KEY, NAMESPACE_KEY]:
if result[k] is None:
msg = "You need to set %s in %s" % (k, ANSWERS_FILE)
logger.error(msg)
raise ProviderFailedException(msg)
# set config values
self.providerapi = result[PROVIDER_API_KEY]
self.access_token = result[ACCESS_TOKEN_KEY]
self.namespace = result[NAMESPACE_KEY]
self.provider_tls_verify = result[PROVIDER_TLS_VERIFY_KEY]
if result[PROVIDER_CA_KEY]:
# if we are in container translate path to path on host
self.provider_ca = os.path.join(Utils.getRoot(),
result[PROVIDER_CA_KEY].lstrip('/'))
else:
self.provider_ca = None
def __init__(self, app_spec, destination=None, answers_file=None):
"""
init function for NuleculeManager. Sets a few instance variables.
Args:
app_spec: either a path to an unpacked nulecule app or a
container image name where a nulecule can be found
destination: where to unpack a nulecule to if it isn't local
"""
# Let's pass in a default format for our answers
self.answers = copy.deepcopy(DEFAULT_ANSWERS)
self.answers_format = None
self.answers_file = None # The path to an answer file
self.app_path = None # The path where the app resides or will reside
self.image = None # The container image to pull the app from
# Adjust app_spec, destination, and answer file paths if absolute.
if os.path.isabs(app_spec):
app_spec = os.path.join(Utils.getRoot(),
app_spec.lstrip('/'))
if destination and os.path.isabs(destination):
destination = os.path.join(Utils.getRoot(),
destination.lstrip('/'))
if answers_file and os.path.isabs(answers_file):
answers_file = os.path.join(Utils.getRoot(),
answers_file.lstrip('/'))
# If the user doesn't want the files copied to a permanent
# location then he provides 'none'. If that is the case we'll
# use a temporary directory
if destination and destination.lower() == 'none':
logger.debug("'none' destination requested. Using tmp dir")
destination = tempfile.mkdtemp(prefix='atomicapp')
# Determine if the user passed us an image or a path to an app
if not os.path.exists(app_spec):
self.image = app_spec
else:
self.app_path = app_spec
# Doesn't really make much sense to provide an app path and destination,
# but if they want to we'll simply just copy the files for them
if self.app_path and destination:
Utils.copy_dir(self.app_path, destination, update=True)
self.app_path = destination
# If the user provided an image, make sure we have a destination
if self.image:
if destination:
self.app_path = destination
else:
self.app_path = Utils.getNewAppCacheDir(self.image)
logger.debug("NuleculeManager init app_path: %s", self.app_path)
logger.debug("NuleculeManager init image: %s", self.image)
# Set where the main nulecule file should be
self.main_file = os.path.join(self.app_path, MAIN_FILE)
# If user provided a path to answers then make sure it exists. If they
# didn't provide one then use the one in the app dir if it exists.
if answers_file:
self.answers_file = answers_file
if not os.path.isfile(self.answers_file):
raise NuleculeException(
"Path for answers doesn't exist: %s" % self.answers_file)
else:
if os.path.isfile(os.path.join(self.app_path, ANSWERS_FILE)):
self.answers_file = os.path.join(self.app_path, ANSWERS_FILE)
# TODO: put this in a better place in the future.
# If we are running inside of an openshift pod then override
# some of the config by detecting some values from the environment
if Utils.running_on_openshift():
self.answers[GLOBAL_CONF]['provider'] = 'openshift'
self.answers[GLOBAL_CONF]['accesstoken'] = os.environ['TOKEN_ENV_VAR']
self.answers[GLOBAL_CONF]['namespace'] = os.environ['POD_NAMESPACE']
self.answers[GLOBAL_CONF]['providerapi'] = \
Utils.get_openshift_api_endpoint_from_env()
