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-rw-r--r--config/loader.py51
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diff --git a/config/loader.py b/config/loader.py
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+# -------------------------------------------------------------------------
+# Copyright (c) 2015-2017 AT&T Intellectual Property
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# -------------------------------------------------------------------------
+#
+
+import json
+
+import yaml
+
+
+def load_config_file(config_file: str, child_name="dockerConfiguration") -> dict:
+ """
+ Load OSDF configuration from a file -- currently only yaml/json are supported
+ :param config_file: path to config file (.yaml or .json).
+ :param child_name: if present, return only that child node
+ :return: config (all or specific child node)
+ """
+ with open(config_file, 'r') as fid:
+ res = {}
+ if config_file.endswith(".yaml"):
+ res = yaml.load(fid)
+ elif config_file.endswith(".json") or config_file.endswith("json"):
+ res = json.load(fid)
+ return res.get(child_name, res) if child_name else res
+
+
+def dcae_config(config_file: str) -> dict:
+ return load_config_file(config_file, child_name="dockerConfiguration")
+
+
+def all_configs(**kwargs: dict) -> dict:
+ """
+ Load all specified configurations
+ :param config_file_spec: key-value pairs
+ (e.g. { "core": "common_config.yaml", "deployment": "/tmp/1452523532json" })
+ :return: merged config as a nested dictionary
+ """
+ return {k: load_config_file(fname) for k, fname in kwargs.items()}