Configuration

The service allowed two variants of configuration:

1. use the Configurator service

2. use the configuration file

The service reads settings from the configuration file by default.

You can specify the –luna-config option for pulling settings from the Configurator service, see configurator.

Auto reload configuration

The service supports an auto-reload of configurations. You can enable this feature by specifying a config-reload option in the command line. The service periodically checks new settings. If current settings and new pulled settings are the same the service will not perform any actions. You can specify the check period in the pulling-time command line argument (10 seconds by default).

If a configuration fetching has failed, the service will work without applying any changes to the existing configurations.

If check connections with the new configuration have failed, the service will retry pulling new configuration after pulling-time seconds. The service will shut down after 10 failed attempts.

Warning

Service can work incorrectly while the new settings are being applied. It is strongly recommended not to send requests to the service when you change important settings (database configuration, work plugins list, and others).

Configuration file for administrator

# Luna Serving configurator file

[LUNA_CONFIGURATOR]
#: [integer] load configs from LUNA Configurator
USE_CONFIGURATOR = 0
#: [string] LUNA Configurator protocol, IP address, and port
LUNA_CONFIGURATOR_ORIGIN = http://127.0.0.1:5070
#: [integer] API version of the LUNA Configurator
LUNA_CONFIGURATOR_API  = 1


[LUNA_SERVING_LOGGER]
#: [string] folder, where logs are saved (relative path begins in directory with application)
FOLDER_WITH_LOGS = ./
#: [string] level of debug print, by priority: "ERROR", "WARNING", "INFO", "DEBUG"
LOG_LEVEL = INFO
#: [string] time format used in log records: "LOCAL" or "UTC"
LOG_TIME = LOCAL
#: [integer] maximum log file size in megabytes before performing rotation (0 - without rotation)
MAX_LOG_FILE_SIZE = 1024
#: send log to stdout
LOG_TO_STDOUT = 1
#: send log to file
LOG_TO_FILE = 0
#: allow multiline stack trace in logs
MULTILINE_STACK_TRACE = 1

[LUNA_SERVING_DB]

#: [string] type of database: "postgres" only
DB_TYPE = postgres
#: [string] database username
DB_USER = luna
#: [string] database password
DB_PASSWORD = luna
#: [string] database IP address
DB_HOST = 127.0.0.1
#: [integer] database listener port, 5432 - default for "postgres" type
DB_PORT = 5432
#: [string] database name for "postgres" type
DB_NAME = luna_serving

[LUNA_MONITORING]

#: [string] storage type
STORAGE_TYPE = clickhouse
#: [integer] send data for monitoring to clickhouse
SEND_DATA_FOR_MONITORING = 1
#: [string] database name
DB_USER = luna
#: [string] clickhouse password
DB_PASSWORD = password
#: [string] clickhouse database name
DB_NAME = luna_monitoring
#: [string] clickhouse IP address
HOST = 127.0.0.1
#: [integer] clickhouse port
PORT = 8123
#: [integer] Whether to use HTTPS to connect to Monitoring database
USE_SSL = 0
#: [integer] frequency of sending monitoring data to the database (in seconds)
FLUSHING_PERIOD = 1

[LUNA_SERVING_HTTP_SETTINGS]
#: web server http settings

#: [integer] service request timeout (in seconds)
REQUEST_TIMEOUT = 60
#: [integer] service response timeout (in seconds)
RESPONSE_TIMEOUT = 600
#: [integer] max request size (in bytes), default ~130gb
REQUEST_MAX_SIZE = 137438953472
#: [integer] service http keep-alive timeout (in seconds)
KEEP_ALIVE_TIMEOUT = 15


[LUNA_SERVICE_METRICS]

#: [int] whether to enable /metrics path and statistics collection
ENABLED = 0
# [string] statistics data format (prometheus is the only option yet)
METRICS_FORMAT = prometheus

[BALANCER_API_TIMEOUTS]

#: [integer] HTTP connection timeout
CONNECT = 30
#: [integer] HTTP request timeout (total)
REQUEST = 60

[OTHER]

#: [string] balancer api address
BALANCER_API_ADDRESS = http://127.0.0.1:8081
#: storage time - "LOCAL" or "UTC"
STORAGE_TIME = LOCAL
#: [string] folder, where images are stored (relative path begins in directory with application)
LOCAL_STORAGE = ./local_storage
#: [list(string)] list of active plugins
LUNA_SERVING_ACTIVE_PLUGINS = []

Extended administrator configuration

Module for parsing config file

Module set values in global variables.

configs.config.DB_CONNECT_TIMEOUT = 5

Connection timeout for database in seconds

configs.config.SERVING_PORT = 5310

Default port