Efforts to make ucloud a python package

ucloud/config.py

@@ -0,0 +1,36 @@
+from etcd3_wrapper import Etcd3Wrapper
+
+from ucloud.common.host import HostPool
+from ucloud.common.request import RequestPool
+from ucloud.common.vm import VmPool
+from ucloud.common.storage_handlers import FileSystemBasedImageStorageHandler, CEPHBasedImageStorageHandler
+from decouple import Config, RepositoryEnv
+
+
+env_vars = Config(RepositoryEnv('/etc/ucloud/ucloud.conf'))
+
+etcd_wrapper_args = ()
+etcd_wrapper_kwargs = {
+    'host': env_vars.get('ETCD_URL', 'localhost'),
+    'port': env_vars.get('ETCD_PORT', 2379),
+    'ca_cert': env_vars.get('CA_CERT', None),
+    'cert_cert': env_vars.get('CERT_CERT', None),
+    'cert_key': env_vars.get('CERT_KEY', None)
+}
+
+etcd_client = Etcd3Wrapper(*etcd_wrapper_args, **etcd_wrapper_kwargs)
+
+host_pool = HostPool(etcd_client, env_vars.get('HOST_PREFIX'))
+vm_pool = VmPool(etcd_client, env_vars.get('VM_PREFIX'))
+request_pool = RequestPool(etcd_client, env_vars.get('REQUEST_PREFIX'))
+
+running_vms = []
+
+__storage_backend = env_vars.get("STORAGE_BACKEND")
+if __storage_backend == "filesystem":
+    image_storage_handler = FileSystemBasedImageStorageHandler(vm_base=env_vars.get("VM_DIR"),
+                                                               image_base=env_vars.get("IMAGE_DIR"))
+elif __storage_backend == "ceph":
+    image_storage_handler = CEPHBasedImageStorageHandler(vm_base="ssd", image_base="ssd")
+else:
+    raise Exception("Unknown Image Storage Handler")