Advanced configuration
editAdvanced configuration
editSetting JVM options
editYou can change JVM settings by using the LS_JAVA_OPTS
environment variable to override default settings in jvm.options
. This approach ensures that expected settings from jvm.options
are set, and only options that explicitly need to be overridden are.
To do, this, set the LS_JAVA_OPTS
environment variable in the container definition of your Logstash resource:
Setting keystore
editYou can specify sensitive settings with Kubernetes secrets. ECK automatically injects these settings into the keystore before it starts Logstash. The ECK operator continues to watch the secrets for changes and will restart Logstash Pods when it detects a change.
The Logstash Keystore can be password protected by setting an environment variable called LOGSTASH_KEYSTORE_PASS
. Check out Logstash Keystore documentation for details.
apiVersion: v1 kind: Secret metadata: name: logstash-keystore-pass stringData: LOGSTASH_KEYSTORE_PASS: changed --- apiVersion: v1 kind: Secret metadata: name: logstash-secure-settings stringData: HELLO: Hallo --- apiVersion: logstash.k8s.elastic.co/v1alpha1 kind: Logstash metadata: name: logstash-sample spec: version: 8.16.1 count: 1 pipelines: - pipeline.id: main config.string: |- input { exec { command => 'uptime' interval => 10 } } filter { if ("${HELLO:}" != "") { mutate { add_tag => ["awesome"] } } } secureSettings: - secretName: logstash-secure-settings podTemplate: spec: containers: - name: logstash env: - name: LOGSTASH_KEYSTORE_PASS valueFrom: secretKeyRef: name: logstash-keystore-pass key: LOGSTASH_KEYSTORE_PASS