Enable remote debugging with ptvsd

bin/docker-entrypoint

@@ -39,6 +39,7 @@ help() {
   echo ""
   echo "shell -- open shell"
   echo "dev_server -- start Flask development server with debugger and auto reload"
+  echo "debug_server -- start Flask development server with remote debugger via ptvsd"
   echo "create_db -- create database tables"
   echo "manage -- CLI to manage redash"
   echo "tests -- run tests"
@@ -70,7 +71,12 @@ case "$1" in
     ;;
   dev_server)
     export FLASK_DEBUG=1
-    exec /app/manage.py runserver --no-debugger --no-reload -h 0.0.0.0
+    exec /app/manage.py runserver --debugger --reload -h 0.0.0.0
+    ;;
+  debug_server)
+    export FLASK_DEBUG=1
+    export REMOTE_DEBUG=1
+    exec /app/manage.py runserver -h 0.0.0.0
     ;;
   shell)
     exec /app/manage.py shell

docker-compose.debug.yml

@@ -0,0 +1,9 @@
+# This configuration file is for **development** setup. For production, refer to
+# docker-compose.production.yml.
+version: '3'
+services:
+  server:
+    command: debug_server
+    ports:
+      - "5678:5678"
+      - "5000:5000"

docker-compose.yml

@@ -9,7 +9,6 @@ services:
       - postgres
       - redis
     ports:
-      - "5678:5678"
       - "5000:5000"
     volumes:
       - ".:/app"

redash/__init__.py

@@ -23,7 +23,7 @@
 
 
 import os
-if os.environ.get("FLASK_DEBUG"):
+if os.environ.get("REMOTE_DEBUG"):
     import ptvsd
     ptvsd.enable_attach(address=('0.0.0.0', 5678))