Real things get lost in hype cycle, as it is said right tool for right job. If you are looking for lightweight container VM use LXD. This let you use saltstack

Real things get lost in hype cycle, as it is said right tool for right job. If you are looking for lightweight container VM use LXD. This let you use saltstack, ansible, chef or puppet etc. CM for system management. Same configuration can run on bare metal, VM based vagrant on desktop or cloud services like AWS, Azure, Google or many others. If you are looking for application containers running single daemmon use docker (I am not using the term process since many daemons fork multiple processes and docker still call it single process). Docker by default doesn't yet support unprivileged containers which poses security risks on multi-tenant system so can only be used with added overhead of virtual machine in AWS, Google, Azure etc. But its still good for continuous integration and development given hype resulted in integration of many tools around it.