Mount .localstack into LS container for lambda_debug_mode.yaml access

LAMBDA_DEBUG_MODE_CONFIG_PATH must be a path inside the LocalStack
container. Mount .localstack/ via LOCALSTACK_DOCKER_FLAGS and point
the config path to the container-internal location (/tmp/ls-debug).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: whummer

.devcontainer/devcontainer.json

@@ -24,7 +24,8 @@
     "LOCALSTACK_APPINSPECTOR_ENABLE": "1",
     "LOCALSTACK_APPINSPECTOR_DEV_ENABLE": "1",
     "LOCALSTACK_LAMBDA_DEBUG_MODE": "1",
-    "LOCALSTACK_LAMBDA_DEBUG_MODE_CONFIG_PATH": ".localstack/lambda_debug_mode.yaml"
+    "LOCALSTACK_LAMBDA_DEBUG_MODE_CONFIG_PATH": "/tmp/ls-debug/lambda_debug_mode.yaml",
+    "LOCALSTACK_DOCKER_FLAGS": "-v /workspaces/localstack-workshop/.localstack:/tmp/ls-debug"
   },
   "postStartCommand": "bash ./00-setup/setup.sh"
 }

Makefile

@@ -15,7 +15,8 @@ start: ## Start LocalStack in the background
 debug-start: ## Start LocalStack with Lambda debug mode enabled (port 19891)
 	LOCALSTACK_APPINSPECTOR_ENABLE=1 LOCALSTACK_APPINSPECTOR_DEV_ENABLE=1 \
 	  LAMBDA_DEBUG_MODE=1 \
-	  LAMBDA_DEBUG_MODE_CONFIG_PATH=$(PWD)/.localstack/lambda_debug_mode.yaml localstack start -d
+	  LOCALSTACK_DOCKER_FLAGS="-v $(PWD)/.localstack:/tmp/ls-debug" \
+	  LAMBDA_DEBUG_MODE_CONFIG_PATH=/tmp/ls-debug/lambda_debug_mode.yaml localstack start -d
 
 hot-reload: ## Switch order-handler to hot-reload mode (edits take effect immediately)
 	awslocal lambda update-function-code \