[conf] halfapi becomes configurable only by environment variables (for one domain)

halfapi/__init__.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-__version__ = '0.5.9'
+__version__ = '0.5.10'
 
 def version():
     return f'HalfAPI version:{__version__}'

halfapi/cli/cli.py

@@ -7,7 +7,12 @@ not loaded otherwise.
 """
 # builtins
 import click
-from ..conf import IS_PROJECT
+
+IS_PROJECT = True
+try:
+    from ..conf import DOMAINS
+except Exception:
+    IS_PROJECT = False
 
 @click.group(invoke_without_command=True)
 @click.option('--version', is_flag=True)

halfapi/cli/domain.py

@@ -24,9 +24,9 @@ def create_domain(domain_name: str, module_path: str):
     logger.info('Will add **%s** (%s) to current halfAPI project',
             domain_name, module_path)
 
-    if domain_name in DOMAINSDICT():
+    #if domain_name in DOMAINSDICT():
-        logger.warning('Domain **%s** is already in project')
+    #    logger.warning('Domain **%s** is already in project', domain_name)
-        sys.exit(1)
+    #    sys.exit(1)
 
     if not config.has_section('domains'):
         config.add_section('domains')

halfapi/conf.py

@@ -9,14 +9,14 @@ It uses the following environment variables :
 
 It defines the following globals :
 
-    - PROJECT_NAME (str)
+    - PROJECT_NAME (str) - HALFAPI_PROJECT_NAME
-    - DOMAINSDICT ({domain_name: domain_module})
+    - DOMAINSDICT ({domain_name: domain_module}) - HALFAPI_DOMAIN_NAME / HALFAPI_DOMAIN_MODULE
-    - PRODUCTION (bool)
+    - PRODUCTION (bool) - HALFAPI_PRODUCTION
-    - LOGLEVEL (string)
+    - LOGLEVEL (string) - HALFAPI_LOGLEVEL
-    - BASE_DIR (str)
+    - BASE_DIR (str) - HALFAPI_BASE_DIR
-    - HOST (str)
+    - HOST (str) - HALFAPI_HOST
-    - PORT (int)
+    - PORT (int) - HALFAPI_PORT
-    - CONF_DIR (str)
+    - CONF_DIR (str) - HALFAPI_CONF_DIR
     - IS_PROJECT (bool)
     - config (ConfigParser)
 
@@ -43,9 +43,9 @@ import importlib
 
 from .lib.domain import d_domains
 
-logger = logging.getLogger('halfapi')
+logger = logging.getLogger('uvicorn.asgi')
 
-PROJECT_NAME = os.path.basename(os.getcwd())
+PROJECT_NAME = environ.get('HALFAPI_PROJECT_NAME') or os.path.basename(os.getcwd())
 DOMAINSDICT = lambda: {}
 DOMAINS = {}
 PRODUCTION = False
@@ -115,8 +115,6 @@ def read_config():
 
 
 CONFIG = {}
-IS_PROJECT = False
-if is_project():
 read_config()
 
 IS_PROJECT = True
@@ -128,25 +126,38 @@ if is_project():
 
 DOMAINSDICT = lambda: d_domains(config)
 DOMAINS = DOMAINSDICT()
-    HOST = config.get('project', 'host')
+if len(DOMAINS) == 0:
-    PORT = config.getint('project', 'port')
+    logger.info('Domain-less instance')
+
+HOST = config.get('project', 'host', fallback=environ.get('HALFAPI_HOST', '127.0.0.1'))
+PORT = config.getint('project', 'port', fallback=environ.get('HALFAPI_PORT', '3000'))
 
 try:
     with open(config.get('project', 'secret')) as secret_file:
         SECRET = secret_file.read().strip()
         CONFIG['secret'] = SECRET.strip()
         # Set the secret so we can use it in domains
-            os.environ['HALFAPI_SECRET'] = SECRET
+        environ['HALFAPI_SECRET'] = SECRET
 except FileNotFoundError as exc:
+    if 'HALFAPI_SECRET' in environ:
+        SECRET = environ.get('HALFAPI_SECRET')
+        CONFIG['secret'] = SECRET.strip()
+        # Set the secret so we can use it in domains
+        environ['HALFAPI_SECRET'] = SECRET
+
     logger.error('There is no file like %s : %s',
         config.get('project', 'secret'), exc)
 
-    PRODUCTION = config.getboolean('project', 'production') or False
+PRODUCTION = config.getboolean('project', 'production',
+    fallback=environ.get('HALFAPI_PROD', False))
+
 os.environ['HALFAPI_PROD'] = str(PRODUCTION)
 
-    LOGLEVEL = config.get('project', 'loglevel').lower() or 'info'
+LOGLEVEL = config.get('project', 'loglevel',
+    fallback=environ.get('HALFAPI_LOGLEVEL', 'info')).lower()
 
-    BASE_DIR = config.get('project', 'base_dir', fallback='.') #os.getcwd())
+BASE_DIR = config.get('project', 'base_dir',
+    fallback=environ.get('HALFAPI_BASE_DIR', '.'))
 
 CONFIG = {
     'project_name': PROJECT_NAME,

halfapi/lib/domain.py

@@ -3,6 +3,7 @@
 lib/domain.py The domain-scoped utility functions
 """
 
+import os
 import re
 import sys
 import importlib
@@ -229,6 +230,11 @@ def d_domains(config) -> Dict[str, ModuleType]:
 
         dict[str, ModuleType]
     """
+    if os.environ.get('HALFAPI_DOMAIN_NAME') and os.environ.get('HALFAPI_DOMAIN_MODULE', '.routers'):
+        config['domains'] = {
+            os.environ.get('HALFAPI_DOMAIN_NAME'): os.environ.get('HALFAPI_DOMAIN_MODULE')
+        }
+
     if not 'domains' in config:
         return {}