I have deployed jenkins via helm to my cluster and added a freestyle project ( not pipeline ). It correctly boots up slaves & connects to the master and starts the build, however i'm getting the error:

ERROR: Cannot run program "docker" (in directory "/home/jenkins/workspace/MrSecurity.Proxy"): error=2, No such file or directory
java.io.IOException: Cannot run program "docker" (in directory "/home/jenkins/workspace/MrSecurity.Proxy"): error=2, No such file or directory

When I created the jenkins deploy I passed in:

  volumes:
  - type: HostPath
    secretName: /var/run/docker.sock
    mountPath: /var/run/docker.sock

And in the jenkins UI i got the following settings.

Could someone please help me on how to solve this. I figured it cant run docker because its docker-in-docker, however I can't find a solution to it, seems like I have tried everything..