def get_instance(self, arguments=None):
"""
Return an instance of the backend with either the default arguments or the one provided as an argument.
:param arguments: If defined, use these arguments when calling the __init__ method.
"""
cl = ClassLoader(self.module, self.klass, self.arguments)
return cl.get_instance(arguments)
def get_instance(self, arguments=None):
"""
Return an instance of the backend with either the default arguments or the one provided as an argument.
:param arguments: If defined, use these arguments when calling the __init__ method.
"""
cl = ClassLoader(self.module, self.klass, self.arguments)
return cl.get_instance(arguments)
def get_internal_ldap():
"""
Return an instance of the internal LDAP backend.
"""
global _INTERNAL_LDAP
if _INTERNAL_LDAP is None:
module, klass = ClassLoader.split(str(config.INTERNAL_LDAP_CLASS))
_INTERNAL_LDAP = ClassLoader(module, klass, config.INTERNAL_LDAP_ARGS)
return _INTERNAL_LDAP.get_instance()
def get_user_backend():
"""
Return an instance of the external user backend.
"""
global _USER_BACKEND
if _USER_BACKEND is None:
module, klass = ClassLoader.split(str(config.USER_BACKEND_CLASS))
_USER_BACKEND = ClassLoader(module, klass, config.USER_BACKEND_ARGS)
return _USER_BACKEND.get_instance()
def get_storage_backend():
"""
Return the singleton instance of the storage backend in use.
"""
global _STORAGE_BACKEND
if _STORAGE_BACKEND is None:
module, klass = ClassLoader.split(str(config.STORAGE_BACKEND_CLASS))
cl = ClassLoader(module, klass, config.STORAGE_BACKEND_ARGS)
_STORAGE_BACKEND = cl.get_instance()
return _STORAGE_BACKEND
def get_server_selection_algorithm():
"""
Return the server selection algorithm instance that is used to pick a container host.
"""
global _SERVER_SELECTION_ALGORITHM
if _SERVER_SELECTION_ALGORITHM is None:
module, klass = ClassLoader.split(
str(config.SERVER_SELECTION_ALGORITHM_CLASS))
cl = ClassLoader(module, klass)
_SERVER_SELECTION_ALGORITHM = cl.get_instance()
return _SERVER_SELECTION_ALGORITHM
def main():
"""
coco host API command-line interface entry point.
"""
# define available arguments
parser = argparse.ArgumentParser(description='coco host API CLI tool')
parser.add_argument('-d', '--debug', help='run in debug mode',
action='store_true', default=False, dest='debug')
parser.add_argument('-l', '--listen', help='the address to listen on (default: 0.0.0.0)',
action='store', type=str, default='0.0.0.0', dest='address')
parser.add_argument('-p', '--port', help='the port to bind to (default: 8080)',
action='store', type=int, default=8080, dest='port')
parser.add_argument('--container-backend', help='absolute name of the container backend class to load (default: coco.backends.container_backends.Docker)',
action='store', type=str, default='coco.backends.container_backends.Docker', dest='container_backend')
parser.add_argument('--container-backend-args', help='arguments to pass to the container backend upon initialization (default: { "version": "auto" })',
action='store', type=str, default='{ "version": "auto" }', dest='container_backend_args')
args = parser.parse_args()
# set configuration values
config.debug = args.debug
try:
module, klass = ClassLoader.split(args.container_backend)
backend = ClassLoader(module=module, klass=klass, args=args.container_backend_args)
config.container_backend = backend.get_instance()
except Exception as ex:
if config.debug:
raise ex
else:
print """Initializing the container backend failed.
Turn on debug mode (-d. --debug) to get more information about the error."""
sys.exit(1)
# bootstrap the application and add our routes
app = Flask(__name__)
app.register_blueprint(containers_blueprint)
app.register_blueprint(core_blueprint)
# run the application / HTTP REST API
app.run(
debug=config.debug,
host=args.address,
port=args.port
# processes=4
)
def main():
"""
coco host API command-line interface entry point.
"""
# define available arguments
parser = argparse.ArgumentParser(description='coco host API CLI tool')
parser.add_argument('-d',
'--debug',
help='run in debug mode',
action='store_true',
default=False,
dest='debug')
parser.add_argument('-l',
'--listen',
help='the address to listen on (default: 0.0.0.0)',
action='store',
type=str,
default='0.0.0.0',
dest='address')
parser.add_argument('-p',
'--port',
help='the port to bind to (default: 8080)',
action='store',
type=int,
default=8080,
dest='port')
parser.add_argument(
'--container-backend',
help=
'absolute name of the container backend class to load (default: coco.backends.container_backends.Docker)',
action='store',
type=str,
default='coco.backends.container_backends.Docker',
dest='container_backend')
parser.add_argument(
'--container-backend-args',
help=
'arguments to pass to the container backend upon initialization (default: { "version": "auto" })',
action='store',
type=str,
default='{ "version": "auto" }',
dest='container_backend_args')
args = parser.parse_args()
# set configuration values
config.debug = args.debug
try:
module, klass = ClassLoader.split(args.container_backend)
backend = ClassLoader(module=module,
klass=klass,
args=args.container_backend_args)
config.container_backend = backend.get_instance()
except Exception as ex:
if config.debug:
raise ex
else:
print """Initializing the container backend failed.
Turn on debug mode (-d. --debug) to get more information about the error."""
sys.exit(1)
# bootstrap the application and add our routes
app = Flask(__name__)
app.register_blueprint(containers_blueprint)
app.register_blueprint(core_blueprint)
# run the application / HTTP REST API
app.run(debug=config.debug,
host=args.address,
port=args.port
# processes=4
)
