Add maildev to the dev stack (#4173)

* add maildev to the dev stack

* Update redash/settings/__init__.py

Co-Authored-By: Arik Fraimovich <arik@arikfr.com>

docker-compose.yml

@@ -8,6 +8,7 @@ services:
     depends_on:
       - postgres
       - redis
+      - email
     ports:
       - "5000:5000"
       - "5678:5678"
@@ -47,3 +48,8 @@ services:
       - "15432:5432"
     command: "postgres -c fsync=off -c full_page_writes=off -c synchronous_commit=OFF"
     restart: unless-stopped
+  email:
+    image: djfarrelly/maildev
+    ports:
+      - "1080:80"
+    restart: unless-stopped

redash/settings/__init__.py

@@ -210,13 +210,13 @@
                     'task_id=%(task_id)s %(message)s')))
 
 # Mail settings:
-MAIL_SERVER = os.environ.get('REDASH_MAIL_SERVER', 'localhost')
+MAIL_SERVER = os.environ.get('REDASH_MAIL_SERVER', 'email')
 MAIL_PORT = int(os.environ.get('REDASH_MAIL_PORT', 25))
 MAIL_USE_TLS = parse_boolean(os.environ.get('REDASH_MAIL_USE_TLS', 'false'))
 MAIL_USE_SSL = parse_boolean(os.environ.get('REDASH_MAIL_USE_SSL', 'false'))
 MAIL_USERNAME = os.environ.get('REDASH_MAIL_USERNAME', None)
 MAIL_PASSWORD = os.environ.get('REDASH_MAIL_PASSWORD', None)
-MAIL_DEFAULT_SENDER = os.environ.get('REDASH_MAIL_DEFAULT_SENDER', None)
+MAIL_DEFAULT_SENDER = os.environ.get('REDASH_MAIL_DEFAULT_SENDER', 'john@example.com')
 MAIL_MAX_EMAILS = os.environ.get('REDASH_MAIL_MAX_EMAILS', None)
 MAIL_ASCII_ATTACHMENTS = parse_boolean(os.environ.get('REDASH_MAIL_ASCII_ATTACHMENTS', 'false'))