Merge pull request #131 from c3g/derived-chord-host

Derive CHORD host from URL instead of using another env var

chord_metadata_service/metadata/settings.py

@@ -14,6 +14,8 @@
 import sys
 import logging
 
+from urllib.parse import urlparse
+
 from .. import __version__
 
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
@@ -29,12 +31,6 @@
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = os.environ.get("CHORD_DEBUG", "true").lower() == "true"
 
-ALLOWED_HOSTS = [os.environ.get("CHORD_HOST", "localhost")]
-if DEBUG:
-    ALLOWED_HOSTS = list(set(ALLOWED_HOSTS + ["localhost", "127.0.0.1", "[::1]"]))
-
-APPEND_SLASH = False
-
 
 # CHORD-specific settings
 
@@ -52,6 +48,16 @@
 AUTH_OVERRIDE = not CHORD_PERMISSIONS
 
 
+# Allowed hosts - TODO: Derive from CHORD_URL
+
+CHORD_HOST = urlparse(CHORD_URL or "").netloc
+ALLOWED_HOSTS = [CHORD_HOST or "localhost"]
+if DEBUG:
+    ALLOWED_HOSTS = list(set(ALLOWED_HOSTS + ["localhost", "127.0.0.1", "[::1]"]))
+
+APPEND_SLASH = False
+
+
 # Application definition
 
 INSTALLED_APPS = [