Fix permission errors on the /tmp volume

Author: marcoacierno

backend/pycon/tasks.py

@@ -1,3 +1,4 @@
+import os
 import time
 import logging
 import boto3
@@ -39,6 +40,9 @@ def launch_heavy_processing_worker():
     if len(response["taskArns"]) > 0:
         return
 
+    user_id = os.getuid()
+    group_id = os.getgroups()[0]
+
     response = ecs_client.run_task(
         cluster=cluster_name,
         taskDefinition=f"pythonit-{settings.ENVIRONMENT}-heavy-processing-worker",
@@ -59,6 +63,11 @@ def launch_heavy_processing_worker():
                     "roleArn": settings.ECS_SERVICE_ROLE,
                     "iops": 16_000,
                     "throughput": 1_000,
+                    "dockerVolumeConfiguration": {
+                        "driverOpts": {
+                            "o": f"uid={user_id},gid={group_id}",
+                        },
+                    },
                 },
             }
         ],