Don’t use ESXi for that, it just runs a VM that runs Linux that runs DOcker that runs the container. You can use Centos or Ubuntu VM and run docker off that. However, depending on what you have running, you might want to look at a NAS software solution that runs docker containers. Rockstor does this but so do more popular ones like Synology, QNAP, FreeNAS. Finally, you could use a cloud Plex with the plex pass.