Environment Variables

DecisionRules Environment Variables

All variables can be set either in the docker-compose configuration file or directly as a command-line parameter before running the containers.

Server environment variables

Variable name	Description	Mandatory	Version	Example value
REDIS_URL	Redis URL	Yes		redis(s)://host.docker.internal:6379
SOLVER_REDIS_URL	Redis URL for solver	Yes	Not needed from version 1.6.0, will use REDIS_URL instead	redis(s)://host.docker.internal:6379
MONGO_DB_URI	Mongo URL	Yes		mongodb(+srv)://host.docker.internal:27017
CLIENT_URL	Url on which client container is accessible	Yes		http://localhost:80/# (# is mandatory)
LICENSE_KEY	License key string	Yes		YOUR LICENSE KEY
DB_TYPE	Specify MongoDB type	If you use CosmosDB or DocumentDB	>= 1.8.2	MONGODB (default) COSMOSDB DOCUMENTDB

License Key Validation

Your server must have access to host https://license.decisionrules.io/. You won't be able to start the container without the connectivity to the license server.

Optional server environment variables

Variable name	Description	Mandatory	Version	Example value
MONGO_TLS_CA_FILE	Path to file with one or more certificate authorities to trust when making a TLS connection.	No	>= 1.18.4.4	/certificates/ca.pem
MONGO_TLS_CERTIFICATE_KEY_FILE	Path to the client certificate private key file. This key is often included within the certificate file itself.	No	>= 1.18.4.4	/certificates/private.pem
BRAND_LOGO_URL	Custom brand Logo URL. Feature must be enabled in license key	No	>= 1.17.0	https://example.com.img/logo.ong OR data:image/png;base64,iVBORw0KGgoAAAANSUhE...
API_URL	For sophisticated On-Premise deployments. Lets the server know it's own address for Rule Flow and dependant rule solves.	No		https://api.decisionrules.io
SHOWCASE	Turn on or off showcase mode	No		true/false
WORKERS_NUMBER	Sets number of workers (threads) of application	No		1
BI_MONGO_DB_URI	If you have a separate database cluster for Business Intelligence App	No	>= 1.10.0	mongodb(+srv)://host.docker.internal:27018
SAML_ENTRY_POINT	URL for your identity provider login page	No		https://devX.okta.com/app/name/HASH/sso/saml
SAML_ISSUER	Issuer string to supply to IdP	No		okta.com/HASH_STRING
SAML_CERT	Public certificate of provider. In RAW format as single line withou BEGIN CERTIFICATE and END CERTIFICATE	No		MIIC8DCCAdigAwIBAgIQap4GhMRA26tJGFD.....
SAML_CALLBACK_URL	Callback URL where provider send response	No		https://api.decisionrules.io/saml/callback
RF_TIMEOUT	Time in milliseconds after which the process of solving a rule flow is stopped	No		5000
SR_TIMEOUT	Time in milliseconds after which the process of solving a scripting rule is stopped	No		5000
RF_NODE_LIMIT	Integer of desired rule flow nodes, default value is 30	No		30
SWAGGER_HOST	Host of the server application which will use swagger	No		api.decisionrules.io
WHITELIST	List of allowed domains from which it is possible to register or log in. You can setup multiple domains separated with comma.	No		mydomain.com, yourdomain.io
ALLOWLIST	Cultural-neutral synonym for WHITELIST.	No		mydomain.com, yourdomain.io
TELEMETRY	It turn on/off telemetry, which measures endpoint execution duration (for example: Solver API)	No	>= 1.8.1	On = 1, off = 0
EXAPI_MAX_CNT_LEN	Defined maximal response content length in bytes	No		3000
EXAPI_MAX_BODY_LEN	Defined maximal body size for request in bytes	No		10000
EXAPI_MAX_REDIRECTS	Defines maximal redirects that called url can perform	No		5
EXAPI_TIMEOUT	Defines API connection timeout in miliseconds	No		2000
DT_HTTP_CALL_LIMIT	Defined limit for http function that can be defined in DT or DTR	No	>= 1.12.0	100
LOGGER_TYPE	Select log output format/logger type STRING is default value if not evn variable is set	No		Possible options: STRING JSON
LOGGER_TIMESTAMP_UTC	Select log timestamp format If true: YYYY-MM-DDTHH:mm:ss.SSSZ if false: YYYY-MM-DDTHH:mm:ss.SSS(+-)HH:mm	No	>= 1.14.2	true/false
REDIS_PING_INTERVAL	Duration (in milliseconds) for which the server pings the Redis server.	No	>= 1.14.3	300000
FLUSH_REDIS_ON_STARTUP	Whether cache should be flushed when server is starting. Defaults to true.	No	>= 1.17.0	false
TIMEZONE	Default timezone for date functions. Default is: Europe/Prague		>= 1.13.1	Full list is available here: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
REDIS_CACERT	CA certificate for TLS connection with Redis	No	>= 1.14.5	CA certificate as a single line without BEGIN CERTIFICATE and END CERTIFICATE. For example(MIIC8DCCAdigAwIBAgIQap4GhMRA26tJGFD...)
MONGO_MIN_POOL_SIZE	MongoDB connection minimal pool size	No	>= 1.16.2	5
MONGO_MAX_POOL_SIZE	MongoDB connection maximal pool size	No	>= 1.16.2	100
EXPORT_FOLDER_MEMORY_LIMIT	Memory limit on folder export	No	>=1.17.1	50000000
MEASUREMENTS	Logs the duration of each phase of the solving to the console	No	>= 1.18.4.3	true/false

Client environment variables

Variable name	Description	Mandatory	Version	Example value
API_URL	Url on which backend API is accessible	Yes		http://localhost:8080
BI_API_URL	Url on which Business Intelligence API is accessible	No, but the features related to Business Intelligence won't work	>= 1.10.0	http://localhost:8082
NGINX_PORT	Custom port on which the container will run	No	>= 1.9.3	80

Audit environment variables

Variable name	Description	Mandatory	Example value
BI_MONGO_DB_URI	Mongo URL of Business Intelligence App	Yes	mongodb(+srv)://host.docker.internal:27017
MONGO_DB_URI	In case you have a separate database cluster for Server App	No	mongodb(+srv)://host.docker.internal:27018
WORKERS_NUMBER	Sets number of workers (threads) of application	No	1
DB_TYPE	If you use CosmosDB or DocumentDB	No	MONGODB (default) COSMOSDB DOCUMENTDB
LOGGER_TYPE	Select log output format/logger type STRING is default value if not evn variable is set	No	Possible options: STRING JSON
LOGGER_TIMESTAMP_UTC	Select log timestamp format If true: YYYY-MM-DDTHH:mm:ss.SSSZ if false: YYYY-MM-DDTHH:mm:ss.SSS(+-)HH:mm	No	true/false

Kafka env variables

Variable name	Description	Mandatory	Example value
KAFKA_ENABLED	Turn Kafka on/off	Yes (Kafka is disabled by default)	1/0
KAFKA_CLUSTER_CLIENTID	A logical identifier of an application.	Yes	"my-app"
KAFKA_CLUSTER_BROKERS	Broker definition	Yes	"my-broker:9092, my-broker2:9092"
KAFKA_CLUSTER_SSL	SSL on/off	Yes	"true"
KAFKA_CLUSTER_SASL_MECHANISM	Definition of Kafka SASL mechanism.	Yes	"plain"
KAFKA_CLUSTER_SASL_USERNAME	SASL username	No	"my-username"
KAFKA_CLUSTER_SASL_PASSWORD	SASL password	No	"top-secret-password"
KAFKA_CLUSTER_SASL_AUTHID	SASL authorization identity for aws mechanism	No	"IDIDIDIDID"
KAFKA_CLUSTER_SASL_ACCKEYID	SASL access key for aws mechanism	No	"KEYKEYKEY"
KAFKA_CLUSTER_SASL_SECRETKEY	SASL secret access key for aws mechanism	No	"SECRETKEY"
KAFKA_CLUSTER_SASL_SESSIONTOKEN	SASL session token for aws mechanism	No	"SESSIONTOKEN"
KAFKA_GROUP_TOPIC_1	Definition of Kafka consumer group, request topic and response topic, respectively. To define multiple topic groups, use numbers 1, 2, ..., N. Each record must have different consumer group.	Yes	"my-group, my-request-topic, my-response-topic"