Listed in this page are all environment variables needed to run Logstash.
LOGSTASH_INSTANCES
Number
Number of service replicas
No
1
LOGSTASH_DEV_MOUNT
Boolean
DEV mount mode enabling flag
No
false
LOGSTASH_PACKAGE_PATH
String
Logstash package absolute path
yes if LOGSTASH_DEV_MOUNT is true
LS_JAVA_OPTS
String
JVM heap size, it should be no less than 4GB and no more than 8GB (maximum of 50-75% of total RAM)
No
-Xmx2g -Xms2g
ES_ELASTIC
String
ElasticSearch Logstash user password
Yes
dev_password_only
ES_HOSTS
String
Elasticsearch connection string
Yes
analytics-datastore-elastic-search:9200
KIBANA_SSL
Boolean
SSL protocol requirement
No
True
LOGSTASH_MEMORY_LIMIT
String
RAM usage limit
No
3G
LOGSTASH_MEMORY_RESERVE
String
Reserved RAM
No
500M