def get_env_conf(self):
"""Get the environment config file.
"""
conf = os.path.join(self.juju_home, 'environments.yaml')
if not os.path.exists(conf):
raise ConfigError("Juju environments.yaml not found %s" % conf)
return conf
def check_preconditions(self):
"""Check for provider and configured environments.yaml.
"""
env_name = self.config.get_env_name()
with open(self.config.get_env_conf()) as handle:
conf = yaml.safe_load(handle.read())
if 'environments' not in conf:
raise ConfigError(
"Invalid environments.yaml, no 'environments' section")
if env_name not in conf['environments']:
raise ConfigError("Environment %r not in environments.yaml" %
env_name)
env = conf['environments'][env_name]
if not env['type'] in ('null', 'manual'):
raise ConfigError(
"Environment %r provider type is %r must be 'null'" %
(env_name, env['type']))
if env['bootstrap-host']:
raise ConfigError(
"Environment %r already has a bootstrap-host" % (env_name))
def get_config(cls):
provider_conf = {}
access_key = os.environ.get('SCALEWAY_ACCESS_KEY')
if access_key:
provider_conf['access_key'] = access_key
secret_key = os.environ.get('SCALEWAY_SECRET_KEY')
if secret_key:
provider_conf['secret_key'] = secret_key
if 'access_key' not in provider_conf or \
'secret_key' not in provider_conf:
raise ConfigError("Missing Scaleway api credentials")
return provider_conf
def get_env_name(self):
"""Get the environment name.
"""
if self.options.environment:
return self.options.environment
elif os.environ.get("JUJU_ENV"):
return os.environ['JUJU_ENV']
env_ptr = os.path.join(self.juju_home, "current-environment")
if os.path.exists(env_ptr):
with open(env_ptr) as handle:
return handle.read().strip()
with open(self.get_env_conf()) as handle:
conf = yaml.safe_load(handle.read())
if 'default' not in conf:
raise ConfigError("No Environment specified")
return conf['default']