Comment 7 for bug 1797448

Just a quick addition, /var/lib/zun needs to be created on the host and mounted inside zun_compute container.

zun_services:
  zun-compute:
    volumes:
      - "/lib/modules:/lib/modules:ro"
      - "/dev:/dev"
      - "/var/lib/zun:/var/lib/zun:rw"

Permissions should be set on /var/lib/zun to allow zun user to create objects from the zun_compute container.