Use LAMBDA_REMOVE_CONTAINERS set to false instead of a custom image

localstack-part-3/docker-compose.yml

@@ -13,8 +13,7 @@ volumes:
 services:
 
   localstack:
-    build:
-      context: localstack
+    image: localstack/localstack:0.10.8
     container_name: localstack
     ports:
       - 8080:8080 # webui
@@ -27,6 +26,7 @@ services:
       - PORT_WEB_UI=8080
       - SERVICES=lambda,dynamodb
       - LAMBDA_DOCKER_NETWORK=localstack-tutorial
+      - LAMBDA_REMOVE_CONTAINERS=false
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - localstack:/tmp/localstack/data

localstack-part-3/localstack/Dockerfile

@@ -1,5 +0,0 @@
-FROM localstack/localstack:0.10.7
-
-# Update localstack code to prevent the destruction of the lambda containers every 10 minutes
-COPY localstack.patch /opt/code/localstack/localstack.patch
-RUN apk add git && git apply localstack.patch && apk del --purge git

localstack-part-3/localstack/localstack.patch

@@ -1,13 +0,0 @@
-diff --git a/localstack/services/awslambda/lambda_executors.py b/localstack/services/awslambda/lambda_executors.py
-index 19f1e07..85d4781 100644
---- a/localstack/services/awslambda/lambda_executors.py
-+++ b/localstack/services/awslambda/lambda_executors.py
-@@ -301,7 +301,7 @@ class LambdaExecutorReuseContainers(LambdaExecutorContainers):
-     def startup(self):
-         self.cleanup()
-         # start a process to remove idle containers
--        self.start_idle_container_destroyer_interval()
-+        # self.start_idle_container_destroyer_interval()
- 
-     def cleanup(self, arn=None):
-         if arn: