Hi I am running kubernetes cluster where I run Logstash container.

But I need to run it with own docker run parameter. If I would run it in docker directly. I would use command:

docker run --log-driver=gelf logstash -f /config-dir/logstash.conf

But I need to run it via Kubernetes pod. My pod looks like:

spec:
      containers:
      - name: logstash-logging
        image: "logstash:latest"
        command: ["logstash", "-f" , "/config-dir/logstash.conf"]
        volumeMounts:
          - name: configs
            mountPath: /config-dir/logstash.conf

How to achieve to run Docker container with parameter --log-driver=gelf via kubernetes. Thanks.