Feature/s3 storage (#2226)

* centralizing file writing....

* allowing s3 as storage option

* allowing s3 as storage option

* update s3 storage

---------

Co-authored-by: Henry <hzj94@hotmail.com>

packages/server/.env.example

@@ -1,20 +1,19 @@
 PORT=3000
-# CORS_ORIGINS="*"
-# IFRAME_ORIGINS="*"
-# DATABASE_PATH=/your_database_path/.flowise
+
 # APIKEY_PATH=/your_api_key_path/.flowise
 # SECRETKEY_PATH=/your_api_key_path/.flowise
-# LOG_PATH=/your_log_path/.flowise/logs
-# BLOB_STORAGE_PATH=/your_storage_path/.flowise/storage
 
 # NUMBER_OF_PROXIES= 1
+# CORS_ORIGINS=*
+# IFRAME_ORIGINS=*
 
+# DATABASE_PATH=/your_database_path/.flowise
 # DATABASE_TYPE=postgres
-# DATABASE_PORT=""
+# DATABASE_PORT=5432
 # DATABASE_HOST=""
-# DATABASE_NAME="flowise"
-# DATABASE_USER=""
-# DATABASE_PASSWORD=""
+# DATABASE_NAME=flowise
+# DATABASE_USER=root
+# DATABASE_PASSWORD=mypassword
 # DATABASE_SSL=true
 # DATABASE_SSL_KEY_BASE64=<Self signed certificate in BASE64>
 
@@ -22,7 +21,9 @@ PORT=3000
 # FLOWISE_PASSWORD=1234
 # FLOWISE_SECRETKEY_OVERWRITE=myencryptionkey
 # FLOWISE_FILE_SIZE_LIMIT=50mb
+
 # DEBUG=true
+# LOG_PATH=/your_log_path/.flowise/logs
 # LOG_LEVEL=debug (error | warn | info | verbose | debug)
 # TOOL_FUNCTION_BUILTIN_DEP=crypto,fs
 # TOOL_FUNCTION_EXTERNAL_DEP=moment,lodash
@@ -37,3 +38,10 @@ PORT=3000
 # Uncomment the following line to enable model list config, load the list of models from your local config file
 # see https://raw.githubusercontent.com/FlowiseAI/Flowise/main/packages/components/models.json for the format
 # MODEL_LIST_CONFIG_JSON=/your_model_list_config_file_path
+
+# STORAGE_TYPE=local (local | s3)
+# BLOB_STORAGE_PATH=/your_storage_path/.flowise/storage
+# S3_STORAGE_BUCKET_NAME=flowise
+# S3_STORAGE_ACCESS_KEY_ID=<your-access-key>
+# S3_STORAGE_SECRET_ACCESS_KEY=<your-secret-key>
+# S3_STORAGE_REGION=us-west-2