add registration switch env

dotenv

@@ -1,30 +1,30 @@
 # Example .env file
-DOTENV_MYSQL_ROOT_PASSWORD_OLD=rootp
-DOTENV_MYSQL_ROOT_PASSWORD=rootp
+DOTENV_MYSQL_ROOT_PASSWORD_OLD="aaa"
+DOTENV_MYSQL_ROOT_PASSWORD="aaa"
 
-DOTENV_MYSQL_GITEA_PASSWORD=giteap
-DOTENV_MYSQL_FLASK_PASSWORD=flaskp
+DOTENV_MYSQL_GITEA_PASSWORD="aaa"
+DOTENV_MYSQL_FLASK_PASSWORD="aaa"
 
-GITEA_MAIL_FROM="git@e.e"
+GITEA_MAIL_FROM="git@aaa"
 
 # Build ARG GPG_PP. May still need to be empty to avoid breakage.
 BUILD_GPG_PP=
 
 # Tor:
-# true/false
-USE_TOR=false
+# true/false:
+USE_TOR=true
 
 # Backend:
-
-FLASK_SECRET_KEY="flaskkey"
+FLASK_SECRET_KEY="aaa"
 # Inconsequential token: minimal inconvenience if exposed
-FLASK_TOKEN_I=dti
-
+FLASK_TOKEN_I="dti"
 # Consequential token: protect
-FLASK_TOKEN_C=dtc
-
-FLASK_MAIL_FROM="git@e.e"
+FLASK_TOKEN_C="dtc"
+# true/false:
+ALLOW_REGISTRATION=true
+FLASK_MAIL_FROM="git@aaa"
 # admin email must be valid send from with mail subsystem
-FLASK_ADMIN_EMAIL="git@e.e"
-FLASK_JWT_PHRASE="tphrase"
+FLASK_ADMIN_EMAIL="git@aaa"
+FLASK_JWT_PHRASE="aaa"
 FLASK_REAL_HOSTNAME="localhost"
+