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vSphere UniK Provider

UniK supports running rumprun and OSv unikernels on vSphere. The vSphere stub of your daemon-config.yaml file should look something like the following:

providers:
  #...
  vsphere:
  - name: vsphere-1
    vsphere_user: user
    vsphere_password: password
    vsphere_url: url
    datastore: datastore1
    datacenter: ha-datacenter
    network: VM Network #optional

Running on vSphere requires the host network to support UDP broadcast (see instance listerner). Instances that launch on vSphere without access to UDP broadcast will fail to bootstrap.

UniK stores a JSON representation of the state in the local $HOME/.unik/vsphere/state.json

UniK stores files for running virtual machines in the following folders in the configured datastore:

  • Images (boot vmdks, copied when an instance is launched): [datastore_name] unik/vsphere/images
  • Instances (contains vSphere folder for each instance, plus the copy of the original boot image): [datastore_name] unik/vsphere/instances
  • Volumes (mountable volumes which will persist after Instances are removed): [datastore_name] unik/vsphere/volumes

If UniK gets into a bad state (i.e. you manually remove a file or vSphere VM), you should manually edit the $HOME/.unik/vsphere/state.json file to remove the instance that no longer exists. UniK will eventually become self-correcting to deal with disruptions in the state.