Configuration Management

Neuron supports modifying Neuron's configuration parameters through command line, environment variables, and configuration files, which can provide a more flexible way of starting and running. If command line, environment variable, and configuration file are configured at the same time, the priority relationship between the three is: command line > environment variable > configuration file

Command Line

Environment Variables

Neuron supports reading environment variables during the startup process to configure startup parameters. The currently supported environment variables are as follows:

Configuration name	Configuration function
NEURON_DAEMON	Set to 1, the Neuron daemon runs; set to 0, Neuron runs normally
NEURON_LOG	Set to 1, Neuron Log outputs to standard output stdout; set to 0, Neuron Log does not output to standard output stdout;
NEURON_LOG_LEVEL	Neuron log output level, can be set to DEBUG or NOTICE
NEURON_RESTART	Neuron restart settings, which can be set to never, always, on-failure or NUMBER (1, 2, 3, 4)
NEURON_DISABLE_AUTH	Set to 1, Neuron turns off Token authentication and authentication; set to 0, Neuron turns on Token authentication and authentication
NNEURON_CONFIG_DIR	Neuron configuration file directory
NEURON_PLUGIN_DIR	Neuron plug-in file directory
NEURON_SUB_FILTER_ERROR	Set to 1, the 'subscribe' attribute only detects the normal value read last time, and does not report any error codes to north apps

Configuration File

Neuron provides json format configuration files to configure Neuron-related personalized parameters. The configuration file path is the neuron installation directory config/neuron.json. The default configuration content is as follows:

{
	"ip": "0.0.0.0",
	"port": 7000,
	"disable_auth": 0,
	"syslog_host": "",
	"syslog_port": 541,
	"sub_filter_error": 0
}