test: Fix binary data benchmarks (#31198)

packages/@n8n/benchmark/scenarios/binary-data/binary-data.json

@@ -29,7 +29,7 @@
 		{
 			"parameters": {
 				"operation": "write",
-				"fileName": "=file-{{ Date.now() }}-{{ Math.random() }}.js",
+				"fileName": "={{ $('Webhook').item.json.body.filePath }}/file-{{ Date.now() }}-{{ Math.random() }}.bin",
 				"dataPropertyName": "file",
 				"options": {}
 			},
@@ -40,7 +40,10 @@
 			"name": "Write File to Disk"
 		},
 		{
-			"parameters": { "fileSelector": "={{ $json.fileName }}", "options": {} },
+			"parameters": {
+				"fileSelector": "={{ $json.fileName }}",
+				"options": {}
+			},
 			"type": "n8n-nodes-base.readWriteFile",
 			"typeVersion": 1,
 			"position": [500, 0],

packages/@n8n/benchmark/scenarios/binary-data/binary-data.script.js

@@ -2,6 +2,7 @@ import http from 'k6/http';
 import { check } from 'k6';
 
 const apiBaseUrl = __ENV.API_BASE_URL;
+const n8nDataDirPath = __ENV.N8N_DATA_DIR_PATH || '/n8n';
 
 // This creates a 2MB file (16 * 128 * 1024 = 2 * 1024 * 1024 = 2MB)
 const file = Array.from({ length: 128 * 1024 }, () => Math.random().toString().slice(2)).join('');
@@ -10,7 +11,8 @@ const filename = 'test.bin';
 export default function () {
 	const data = {
 		filename,
-		file: http.file(file, filename, 'application/javascript'),
+		file: http.file(file, filename, 'application/octet-stream'),
+		filePath: n8nDataDirPath,
 	};
 
 	const res = http.post(`${apiBaseUrl}/webhook/binary-files-benchmark`, data);
@@ -24,6 +26,6 @@ export default function () {
 	check(res, {
 		'is status 200': (r) => r.status === 200,
 		'has correct content type': (r) =>
-			r.headers['Content-Type'] === 'application/javascript; charset=utf-8',
+			r.headers['Content-Type'] === 'application/octet-stream; charset=utf-8',
 	});
 }

packages/@n8n/benchmark/scripts/n8n-setups/postgres/docker-compose.yml

@@ -32,6 +32,9 @@ services:
       - DB_TYPE=postgresdb
       - DB_POSTGRESDB_HOST=postgres
       - DB_POSTGRESDB_PASSWORD=password
+      # For binary data test to work
+      - N8N_RESTRICT_FILE_ACCESS_TO=''
+      - N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=false
       # Task Runner config
       - N8N_RUNNERS_MODE=external
       - N8N_RUNNERS_BROKER_LISTEN_ADDRESS=0.0.0.0

packages/@n8n/benchmark/scripts/n8n-setups/scaling-multi-main/docker-compose.yml

@@ -41,6 +41,9 @@ services:
       - N8N_LICENSE_CERT=${N8N_LICENSE_CERT}
       - N8N_LICENSE_ACTIVATION_KEY=${N8N_LICENSE_ACTIVATION_KEY}
       - N8N_LICENSE_TENANT_ID=${N8N_LICENSE_TENANT_ID}
+      # For binary data test to work
+      - N8N_RESTRICT_FILE_ACCESS_TO=''
+      - N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=false
       # Scaling mode config
       - EXECUTIONS_MODE=queue
       - QUEUE_BULL_REDIS_HOST=redis
@@ -87,6 +90,9 @@ services:
       - N8N_LICENSE_CERT=${N8N_LICENSE_CERT}
       - N8N_LICENSE_ACTIVATION_KEY=${N8N_LICENSE_ACTIVATION_KEY}
       - N8N_LICENSE_TENANT_ID=${N8N_LICENSE_TENANT_ID}
+      # For binary data test to work
+      - N8N_RESTRICT_FILE_ACCESS_TO=''
+      - N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=false
       # Scaling mode config
       - EXECUTIONS_MODE=queue
       - QUEUE_BULL_REDIS_HOST=redis

packages/@n8n/benchmark/scripts/n8n-setups/scaling-single-main/docker-compose.yml

@@ -39,6 +39,9 @@ services:
       - N8N_DIAGNOSTICS_ENABLED=false
       - N8N_USER_FOLDER=/n8n/worker1
       - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
+      # For binary data test to work
+      - N8N_RESTRICT_FILE_ACCESS_TO=''
+      - N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=false
       # Queue mode config
       - EXECUTIONS_MODE=queue
       - QUEUE_BULL_REDIS_HOST=redis
@@ -83,6 +86,9 @@ services:
       - N8N_DIAGNOSTICS_ENABLED=false
       - N8N_USER_FOLDER=/n8n/worker2
       - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
+      # For binary data test to work
+      - N8N_RESTRICT_FILE_ACCESS_TO=''
+      - N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=false
       # Queue mode config
       - EXECUTIONS_MODE=queue
       - QUEUE_BULL_REDIS_HOST=redis

packages/@n8n/benchmark/scripts/n8n-setups/sqlite/docker-compose.yml

@@ -13,6 +13,9 @@ services:
       - N8N_DIAGNOSTICS_ENABLED=false
       - N8N_USER_FOLDER=/n8n
       - DB_SQLITE_POOL_SIZE=3
+      # For binary data test to work
+      - N8N_RESTRICT_FILE_ACCESS_TO=''
+      - N8N_BLOCK_FILE_ACCESS_TO_N8N_FILES=false
       # Task Runner config
       - N8N_RUNNERS_MODE=external
       - N8N_RUNNERS_BROKER_LISTEN_ADDRESS=0.0.0.0