I'm running Jenkins version 2.176.3 on Openshift online. And I want to build a pipeline which uses Docker commands to build the image. When I tried to build it gives me an error saying Docker command not found.
I think that is because I don't have Docker installed in Jenkins. I tried to do that using the Jenkins Plugin Manager but the Docker plugin requires Jenkins version 2.19 or later.
I also tried accessing the Jenkins container using oc CLI and tried to install Docker but did not work.
So what would be the best method for me to install Docker inside Jenkins?
The error means you need to have/install docker inside your agent/slave image. For a test purpose try to run your pipeline with docker images, which already contain docker tool.