Allow for setting a different DB flavor

core/admin/mailu/configuration.py

@@ -3,8 +3,6 @@ import os
 
 DEFAULT_CONFIG = {
     # Specific to the admin UI
-    'SQLALCHEMY_DATABASE_URI': 'sqlite:////data/main.db',
-    'SQLALCHEMY_TRACK_MODIFICATIONS': False,
     'DOCKER_SOCKET': 'unix:///var/run/docker.sock',
     'BABEL_DEFAULT_LOCALE': 'en',
     'BABEL_DEFAULT_TIMEZONE': 'UTC',
@@ -14,6 +12,14 @@ DEFAULT_CONFIG = {
     'DEBUG': False,
     'DOMAIN_REGISTRATION': False,
     'TEMPLATES_AUTO_RELOAD': True,
+    # Database settings
+    'DB_FLAVOR': 'sqlite',
+    'DB_USER': 'mailu',
+    'DB_PW': '',
+    'DB_URL': 'database',
+    'DB_NAME': 'mailu',
+    'SQLALCHEMY_DATABASE_URI': 'sqlite:////data/main.db',
+    'SQLALCHEMY_TRACK_MODIFICATIONS': False,
     # Statistics management
     'INSTANCE_ID_PATH': '/data/instance',
     'STATS_ENDPOINT': '0.{}.stats.mailu.io',
@@ -67,8 +73,15 @@ class ConfigManager(dict):
             key: os.environ.get(key, value)
             for key, value in DEFAULT_CONFIG.items()
         })
+        if self.config['SQL_FLAVOR'] != 'sqlite'
+            self.setsql()
         app.config = self
 
+    def setsql(self)
+        if not self.config['DB_PW']
+            self.config['DB_PW'] = self.config['SECRET_KEY']
+        self.config['SQLALCHEMY_DATABASE_URI'] = '{driver}://{user}:{pw}@{url}/{db}'.format(driver=DB_FLAVOR,user=DB_USER,pw=DB_PW,url=DB_URL,db=DB_NAME)
+
     def setdefault(self, key, value):
         if key not in self.config:
             self.config[key] = value