File upload configuration

Customize the files transfer to a backend storage.

Properties

To control all aspects of the file upload behavior.

Property	Type	Default	Description
featureId	string	AutoUploadable	Feature unique identifier in the scope of the edge digital twin
type	string	file	Type of the files that are uploaded by this feature
context	string	edge	Context of the files that are uploaded by this feature, unique in the scope of the `type`
files	string		Glob pattern to select the files for upload
mode	string	strict	Restriction on files that can be dynamically selected for an upload, the supported modes are: strict, lax and scoped
singleUpload	bool	false	Forbid triggering of new uploads when there is an upload in progress
checksum	bool	false	Send MD5 checksum for uploaded files to ensure data integrity
stopTimeout	string	30s	Time to wait for running uploads to finish as a sequence of decimal numbers, each with optional fraction and a unit suffix, such as: 300ms, 1.5h, 10m30s, etc., time units are: ns, us (or µs), ms, s, m, h
delete	bool	false	Delete successfully uploaded files
Upload - TLS
serverCert	string		PEM encoded certificate file for secure uploads
Auto upload
active	bool	false	Activate periodic uploads
activeFrom	string		Time from which periodic uploads should be active, in RFC 3339 format, if omitted (and `active` flag is set) current time will be used as start of the periodic uploads
activeTill	string		Time till which periodic uploads should be active, in RFC 3339 format, if omitted (and `active` flag is set) periodic uploads will be active indefinitely
period	string	10h	Upload period as a sequence of decimal numbers, each with optional fraction and a unit suffix, such as: 300ms, 1.5h, 10m30s, etc., time units are: ns, us (or µs), ms, s, m, h
Local connectivity
broker	string	tcp://localhost:1883	Address of the MQTT server/broker that the file upload will connect for the local communication, the format is: `scheme://host:port`
username	string		Username that is a part of the credentials
password	string		Password that is a part of the credentials
Local connectivity - TLS
caCert	string		PEM encoded CA certificates file
cert	string		PEM encoded certificate file to authenticate to the MQTT server/broker
key	string		PEM encoded unencrypted private key file to authenticate to the MQTT server/broker
Logging
logFile	string	log/file-upload.log	Path to the file where log messages are written
logLevel	string	INFO	All log messages at this or higher level will be logged, the log levels in descending order are: ERROR, WARN, INFO, DEBUG and TRACE
logFileCount	int	5	Log file maximum rotations count
logFileMaxAge	int	28	Log file rotations maximum age in days, use 0 to not remove old log files
logFileSize	int	2	Log file size in MB before it gets rotated

Example

The minimal required configuration that sets the file type to log.

{
    "type": "log",
    "files": "/var/tmp/file-upload/*.*",
    "logFile": "/var/log/file-upload/file-upload.log"
}

Template

The configuration can be further adjusted according to the use case. The following template illustrates all possible properties with their default values.

{
    "featureId": "AutoUploadable",
    "type": "file",
    "context": "edge",
    "files": "",
    "mode": "strict",
    "singleUpload": false,
    "checksum": false,
    "stopTimeout": "30s",
    "delete": false,
    "serverCert": "",
    "active": false,
    "activeFrom": "",
    "activeTill": "",
    "period": "10h",
    "broker": "tcp://localhost:1883",
    "username": "",
    "password": "",
    "caCert": "",
    "cert": "",
    "key": "",
    "logFile": "log/file-upload.log",
    "logLevel": "INFO",
    "logFileCount": 5,
    "logFileMaxAge": 28,
    "logFileSize": 2
}

Last modified August 26, 2022