Software update configuration

Customize the deployment and management of software artifacts.

Properties

To control all aspects of the software update behavior.

Property	Type	Default	Description
featureId	string	SoftwareUpdatable	Feature unique identifier in the scope of the edge digital twin
moduleType	string	software	Type of the software that is managed by this feature
artifactType	string	archive	Type of the artifact that is to be processed: archive or plain
install	string[]		Absolute path to the install script/command and an optional sequence of additional flags/parameters
storageLocation	string	./	Path to the storage directory where the working files are stored
installDirs	string[]		File system directories where the local artifacts are stored
mode	string	strict	Restriction where the local artifacts can be stored on the file system, the supported modes are: strict, lax and scope
Download
downloadRetryCount	int	0	Number of retries, in case of a failed download
downloadRetryInterval	string	5s	Interval between retries, in case of a failed download 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
Download - TLS
serverCert	string		PEM encoded certificate file for secure downloads
Local connectivity
broker	string	tcp://localhost:1883	Address of the MQTT server/broker that the software update 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
Logging
logFile	string	log/software-update.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 software type to firmware.

{
    "moduleType": "firmware",
    "storageLocation": "/var/lib/software-update",
    "logFile": "/var/log/software-update/software-update.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": "SoftwareUpdatable",
    "moduleType": "software",
    "artifactType": "archive",
    "install": [],
    "storageLocation": "./",
    "installDirs": [],
    "mode": "strict",
    "downloadRetryCount": 0,
    "downloadRetryInterval": "5s",
    "serverCert": "",
    "broker": "tcp://localhost:1883",
    "username": "",
    "password": "",
    "logFile": "log/software-update.log",
    "logLevel": "INFO",
    "logFileCount": 5,
    "logFileMaxAge": 28,
    "logFileSize": 2
}

Last modified November 18, 2022