Start to thread through arguments

scripts/predeploy.py

@@ -1,10 +1,47 @@
 #!/usr/bin/env python3
 
+from subprocess import check_output
+from os.path import exists
+from ruamel.yaml import YAML
+from argparse import ArgumentParser
 
-def predeploy():
+yaml = YAML()
+
+def yaml_load_file(target):
+    """Load a YAML file."""
+    try:
+        with open(target, "r") as handle:
+            return yaml.load(handle.read())
+    except Exception as exception:
+        msg = "-----> Failed to load {}, saw {}".format(target, str(exception))
+        print(msg)
+
+
+def load_config(app_config_path):
+    """Load the config.yml if it exists."""
+    config = "{}/vault/config.yml".format(app_config_path)
+
+    if exists(config):
+        print("-----> Loading {}".format(config))
+        return yaml_load_file(config)
+
+    print("-----> No {} discovered, moving on".format(config))
+
+
+def pre_deploy(app, app_config_path, plugin_path):
     """Pre-deploy steps."""
-    pass
+    config = load_config(app_config_path)
+
+    cmd = [
+        "ansible-playbook",
+        ""
+    ]
 
 
 if __name__ == '__main__':
-    predeploy()
+    parser = ArgumentParser()
+    parser.add_argument("--app", help="app name")
+    parser.add_argument("--app-config-path", help="app config path")
+    parser.add_argument("--plugin-path", help="plugin path")
+    args = parser.parse_args()
+    pre_deploy(args.app, args.app_config_path, args.plugin_path)