From d2c27753b7786b86138c9bb67706fec2a67bb542 Mon Sep 17 00:00:00 2001
From: Michael Krasnyk <michael.krasnyk@gmail.com>
Date: Tue, 21 Feb 2023 15:41:45 +0100
Subject: [PATCH] Batch: Fix "local variable 'containers' referenced before
 assignment". (#5953)

---
 moto/batch/models.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/moto/batch/models.py b/moto/batch/models.py
index 5bd751ab8..97ea23945 100644
--- a/moto/batch/models.py
+++ b/moto/batch/models.py
@@ -606,7 +606,12 @@ class Job(threading.Thread, BaseModel, DockerModel, ManagedState):
         """
         try:
             import docker
+        except ImportError as err:
+            logger.error(f"Failed to run AWS Batch container {self.name}. Error {err}")
+            self._mark_stopped(success=False)
+            return
 
+        try:
             containers: List[docker.models.containers.Container] = []
 
             self.advance()