Install java in search heads in kubernetes

[shashank_trip]

I am trying to install java on my splunk search head in kubernetes. As indicated in previous forums, I tried adding the JAVA_VERSION environment variable and set it to openjdk:8 but that does not seem to install java on my kubernetes pod. Can someone guide me to the steps to install java on my pod with the splunk:latest image?

I saw a few ansible scripts which installs java but not in the search head yaml found under https://github.com/splunk/docker-splunk/blob/develop/test_scenarios/kubernetes/3idx1sh1cm-pvc/splunk... which is what I have deployed in my cluster.

[codebuilder]

You don't "install" java to a Docker container, you build it into the base OS image. If the image you're using does not contain java, then you'll need to update the Makefile and rebuild your image.

[shashank_trip]

Thanks @codebuilder for your response. I am trying to set it up on kubernetes using the splunk/splunk:latest image and I tried setting the JAVA_VERSION env variable to "openjdk:11" but that does not seem to bake java into the image via ansible scripts. Any thoughts on what might be up there?

[codebuilder]

Yes. Java is not installed on the Docker image you are using. Try another image or update the Makefile to include it, and rebuild the image.

[codebuilder]

There appear to have been some known issues on this topic as well, resolved with the Debian 10 image.

https://github.com/splunk/splunk-ansible/pull/244