Abstract debug to an env var

.env.sample

@@ -4,6 +4,7 @@ STACK_NAME=alerta
 DOMAIN=alerta.autonomic.zone
 LETS_ENCRYPT_ENV=production
 
+DEBUG=True
 ADMIN_USERS="decentral1se"
 
 OAUTH2_CLIENT_ID=alerta-internal

compose.yml

@@ -25,7 +25,7 @@ x-secrets:
 x-environment:
   &default-env
   - ADMIN_USERS=${ADMIN_USERS}
-  - DEBUG=True
+  - DEBUG=${DEBUG}
   - DOMAIN=${DOMAIN}
   - KEYCLOAK_REALM=${KEYCLOAK_REALM}
   - KEYCLOAK_ROLE=${KEYCLOAK_ROLE}